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, l, 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                                 // note that materialshaderpass and backgroundshaderpass point to shaderpasses[] and so do the pre/post shader ranges, so this catches all of them...
 114                                 for (l = 0; l < Q3SHADER_MAXLAYERS; l++)
 115                                         if (mod->data_textures[j].shaderpasses[l])
 116                                                 for (k = 0; k < mod->data_textures[j].shaderpasses[l]->numframes; k++)
 117                                                         R_SkinFrame_MarkUsed(mod->data_textures[j].shaderpasses[l]->skinframes[k]);
 118                         }
 119                         if (mod->brush.solidskyskinframe)
 120                                 R_SkinFrame_MarkUsed(mod->brush.solidskyskinframe);
 121                         if (mod->brush.alphaskyskinframe)
 122                                 R_SkinFrame_MarkUsed(mod->brush.alphaskyskinframe);
 123                 }
 124         }
 125
 126         if (!cl_stainmaps_clearonload.integer)
 127                 return;
 128
 129         for (i = 0;i < nummodels;i++)
 130         {
 131                 if ((mod = (dp_model_t*) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->mempool && mod->data_surfaces)
 132                 {
 133                         for (surfacenum = 0, surface = mod->data_surfaces;surfacenum < mod->num_surfaces;surfacenum++, surface++)
 134                         {
 135                                 if (surface->lightmapinfo && surface->lightmapinfo->stainsamples)
 136                                 {
 137                                         ssize = (surface->lightmapinfo->extents[0] >> 4) + 1;
 138                                         tsize = (surface->lightmapinfo->extents[1] >> 4) + 1;
 139                                         memset(surface->lightmapinfo->stainsamples, 255, ssize * tsize * 3);
 140                                         mod->brushq1.lightmapupdateflags[surfacenum] = true;
 141                                 }
 142                         }
 143                 }
 144         }
 145 }
 146
 147 /*
 148 ===============
 149 Mod_Init
 150 ===============
 151 */
 152 static void Mod_Print(void);
 153 static void Mod_Precache (void);
 154 static void Mod_Decompile_f(void);
 155 static void Mod_GenerateLightmaps_f(void);
 156 void Mod_Init (void)
 157 {
 158         mod_mempool = Mem_AllocPool("modelinfo", 0, NULL);
 159         Mem_ExpandableArray_NewArray(&models, mod_mempool, sizeof(dp_model_t), 16);
 160
 161         Mod_BrushInit();
 162         Mod_AliasInit();
 163         Mod_SpriteInit();
 164
 165         Cvar_RegisterVariable(&r_enableshadowvolumes);
 166         Cvar_RegisterVariable(&r_mipskins);
 167         Cvar_RegisterVariable(&r_mipnormalmaps);
 168         Cvar_RegisterVariable(&mod_generatelightmaps_unitspersample);
 169         Cvar_RegisterVariable(&mod_generatelightmaps_borderpixels);
 170         Cvar_RegisterVariable(&mod_generatelightmaps_texturesize);
 171
 172         Cvar_RegisterVariable(&mod_generatelightmaps_lightmapsamples);
 173         Cvar_RegisterVariable(&mod_generatelightmaps_vertexsamples);
 174         Cvar_RegisterVariable(&mod_generatelightmaps_gridsamples);
 175         Cvar_RegisterVariable(&mod_generatelightmaps_lightmapradius);
 176         Cvar_RegisterVariable(&mod_generatelightmaps_vertexradius);
 177         Cvar_RegisterVariable(&mod_generatelightmaps_gridradius);
 178
 179         Cmd_AddCommand ("modellist", Mod_Print, "prints a list of loaded models");
 180         Cmd_AddCommand ("modelprecache", Mod_Precache, "load a model");
 181         Cmd_AddCommand ("modeldecompile", Mod_Decompile_f, "exports a model in several formats for editing purposes");
 182         Cmd_AddCommand ("mod_generatelightmaps", Mod_GenerateLightmaps_f, "rebuilds lighting on current worldmodel");
 183 }
 184
 185 void Mod_RenderInit(void)
 186 {
 187         R_RegisterModule("Models", mod_start, mod_shutdown, mod_newmap, NULL, NULL);
 188 }
 189
 190 void Mod_UnloadModel (dp_model_t *mod)
 191 {
 192         char name[MAX_QPATH];
 193         qboolean used;
 194         dp_model_t *parentmodel;
 195
 196         if (developer_loading.integer)
 197                 Con_Printf("unloading model %s\n", mod->name);
 198
 199         strlcpy(name, mod->name, sizeof(name));
 200         parentmodel = mod->brush.parentmodel;
 201         used = mod->used;
 202         if (mod->mempool)
 203         {
 204                 if (mod->surfmesh.data_element3i_indexbuffer)
 205                         R_Mesh_DestroyMeshBuffer(mod->surfmesh.data_element3i_indexbuffer);
 206                 mod->surfmesh.data_element3i_indexbuffer = NULL;
 207                 if (mod->surfmesh.data_element3s_indexbuffer)
 208                         R_Mesh_DestroyMeshBuffer(mod->surfmesh.data_element3s_indexbuffer);
 209                 mod->surfmesh.data_element3s_indexbuffer = NULL;
 210                 if (mod->surfmesh.vbo_vertexbuffer)
 211                         R_Mesh_DestroyMeshBuffer(mod->surfmesh.vbo_vertexbuffer);
 212                 mod->surfmesh.vbo_vertexbuffer = NULL;
 213         }
 214         // free textures/memory attached to the model
 215         R_FreeTexturePool(&mod->texturepool);
 216         Mem_FreePool(&mod->mempool);
 217         // clear the struct to make it available
 218         memset(mod, 0, sizeof(dp_model_t));
 219         // restore the fields we want to preserve
 220         strlcpy(mod->name, name, sizeof(mod->name));
 221         mod->brush.parentmodel = parentmodel;
 222         mod->used = used;
 223         mod->loaded = false;
 224 }
 225
 226 static void R_Model_Null_Draw(entity_render_t *ent)
 227 {
 228         return;
 229 }
 230
 231
 232 typedef void (*mod_framegroupify_parsegroups_t) (unsigned int i, int start, int len, float fps, qboolean loop, const char *name, void *pass);
 233
 234 static int Mod_FrameGroupify_ParseGroups(const char *buf, mod_framegroupify_parsegroups_t cb, void *pass)
 235 {
 236         const char *bufptr;
 237         int start, len;
 238         float fps;
 239         unsigned int i;
 240         qboolean loop;
 241         char name[64];
 242
 243         bufptr = buf;
 244         i = 0;
 245         while(bufptr)
 246         {
 247                 // an anim scene!
 248
 249                 // REQUIRED: fetch start
 250                 COM_ParseToken_Simple(&bufptr, true, false, true);
 251                 if (!bufptr)
 252                         break; // end of file
 253                 if (!strcmp(com_token, "\n"))
 254                         continue; // empty line
 255                 start = atoi(com_token);
 256
 257                 // REQUIRED: fetch length
 258                 COM_ParseToken_Simple(&bufptr, true, false, true);
 259                 if (!bufptr || !strcmp(com_token, "\n"))
 260                 {
 261                         Con_Printf("framegroups file: missing number of frames\n");
 262                         continue;
 263                 }
 264                 len = atoi(com_token);
 265
 266                 // OPTIONAL args start
 267                 COM_ParseToken_Simple(&bufptr, true, false, true);
 268
 269                 // OPTIONAL: fetch fps
 270                 fps = 20;
 271                 if (bufptr && strcmp(com_token, "\n"))
 272                 {
 273                         fps = atof(com_token);
 274                         COM_ParseToken_Simple(&bufptr, true, false, true);
 275                 }
 276
 277                 // OPTIONAL: fetch loopflag
 278                 loop = true;
 279                 if (bufptr && strcmp(com_token, "\n"))
 280                 {
 281                         loop = (atoi(com_token) != 0);
 282                         COM_ParseToken_Simple(&bufptr, true, false, true);
 283                 }
 284
 285                 // OPTIONAL: fetch name
 286                 name[0] = 0;
 287                 if (bufptr && strcmp(com_token, "\n"))
 288                 {
 289                         strlcpy(name, com_token, sizeof(name));
 290                         COM_ParseToken_Simple(&bufptr, true, false, true);
 291                 }
 292
 293                 // OPTIONAL: remaining unsupported tokens (eat them)
 294                 while (bufptr && strcmp(com_token, "\n"))
 295                         COM_ParseToken_Simple(&bufptr, true, false, true);
 296
 297                 //Con_Printf("data: %d %d %d %f %d (%s)\n", i, start, len, fps, loop, name);
 298
 299                 if(cb)
 300                         cb(i, start, len, fps, loop, (name[0] ? name : NULL), pass);
 301                 ++i;
 302         }
 303
 304         return i;
 305 }
 306
 307 static void Mod_FrameGroupify_ParseGroups_Store (unsigned int i, int start, int len, float fps, qboolean loop, const char *name, void *pass)
 308 {
 309         dp_model_t *mod = (dp_model_t *) pass;
 310         animscene_t *anim = &mod->animscenes[i];
 311         if(name)
 312                 strlcpy(anim->name, name, sizeof(anim[i].name));
 313         else
 314                 dpsnprintf(anim->name, sizeof(anim[i].name), "groupified_%d_anim", i);
 315         anim->firstframe = bound(0, start, mod->num_poses - 1);
 316         anim->framecount = bound(1, len, mod->num_poses - anim->firstframe);
 317         anim->framerate = max(1, fps);
 318         anim->loop = !!loop;
 319         //Con_Printf("frame group %d is %d %d %f %d\n", i, start, len, fps, loop);
 320 }
 321
 322 static void Mod_FrameGroupify(dp_model_t *mod, const char *buf)
 323 {
 324         unsigned int cnt;
 325
 326         // 0. count
 327         cnt = Mod_FrameGroupify_ParseGroups(buf, NULL, NULL);
 328         if(!cnt)
 329         {
 330                 Con_Printf("no scene found in framegroups file, aborting\n");
 331                 return;
 332         }
 333         mod->numframes = cnt;
 334
 335         // 1. reallocate
 336         // (we do not free the previous animscenes, but model unloading will free the pool owning them, so it's okay)
 337         mod->animscenes = (animscene_t *) Mem_Alloc(mod->mempool, sizeof(animscene_t) * mod->numframes);
 338
 339         // 2. parse
 340         Mod_FrameGroupify_ParseGroups(buf, Mod_FrameGroupify_ParseGroups_Store, mod);
 341 }
 342
 343 static void Mod_FindPotentialDeforms(dp_model_t *mod)
 344 {
 345         int i, j;
 346         texture_t *texture;
 347         mod->wantnormals = false;
 348         mod->wanttangents = false;
 349         for (i = 0;i < mod->num_textures;i++)
 350         {
 351                 texture = mod->data_textures + i;
 352                 if (texture->materialshaderpass && texture->materialshaderpass->tcgen.tcgen == Q3TCGEN_ENVIRONMENT)
 353                         mod->wantnormals = true;
 354                 if (texture->materialshaderpass && texture->materialshaderpass->tcgen.tcgen == Q3TCGEN_ENVIRONMENT)
 355                         mod->wantnormals = true;
 356                 for (j = 0;j < Q3MAXDEFORMS;j++)
 357                 {
 358                         if (texture->deforms[j].deform == Q3DEFORM_AUTOSPRITE)
 359                         {
 360                                 mod->wanttangents = true;
 361                                 mod->wantnormals = true;
 362                                 break;
 363                         }
 364                         if (texture->deforms[j].deform != Q3DEFORM_NONE)
 365                                 mod->wantnormals = true;
 366                 }
 367         }
 368 }
 369
 370 /*
 371 ==================
 372 Mod_LoadModel
 373
 374 Loads a model
 375 ==================
 376 */
 377 dp_model_t *Mod_LoadModel(dp_model_t *mod, qboolean crash, qboolean checkdisk)
 378 {
 379         int num;
 380         unsigned int crc;
 381         void *buf;
 382         fs_offset_t filesize = 0;
 383         char vabuf[1024];
 384
 385         mod->used = true;
 386
 387         if (mod->name[0] == '*') // submodel
 388                 return mod;
 389
 390         if (!strcmp(mod->name, "null"))
 391         {
 392                 if(mod->loaded)
 393                         return mod;
 394
 395                 if (mod->loaded || mod->mempool)
 396                         Mod_UnloadModel(mod);
 397
 398                 if (developer_loading.integer)
 399                         Con_Printf("loading model %s\n", mod->name);
 400
 401                 mod->used = true;
 402                 mod->crc = (unsigned int)-1;
 403                 mod->loaded = false;
 404
 405                 VectorClear(mod->normalmins);
 406                 VectorClear(mod->normalmaxs);
 407                 VectorClear(mod->yawmins);
 408                 VectorClear(mod->yawmaxs);
 409                 VectorClear(mod->rotatedmins);
 410                 VectorClear(mod->rotatedmaxs);
 411
 412                 mod->modeldatatypestring = "null";
 413                 mod->type = mod_null;
 414                 mod->Draw = R_Model_Null_Draw;
 415                 mod->numframes = 2;
 416                 mod->numskins = 1;
 417
 418                 // no fatal errors occurred, so this model is ready to use.
 419                 mod->loaded = true;
 420
 421                 return mod;
 422         }
 423
 424         crc = 0;
 425         buf = NULL;
 426
 427         // even if the model is loaded it still may need reloading...
 428
 429         // if it is not loaded or checkdisk is true we need to calculate the crc
 430         if (!mod->loaded || checkdisk)
 431         {
 432                 if (checkdisk && mod->loaded)
 433                         Con_DPrintf("checking model %s\n", mod->name);
 434                 buf = FS_LoadFile (mod->name, tempmempool, false, &filesize);
 435                 if (buf)
 436                 {
 437                         crc = CRC_Block((unsigned char *)buf, filesize);
 438                         // we need to reload the model if the crc does not match
 439                         if (mod->crc != crc)
 440                                 mod->loaded = false;
 441                 }
 442         }
 443
 444         // if the model is already loaded and checks passed, just return
 445         if (mod->loaded)
 446         {
 447                 if (buf)
 448                         Mem_Free(buf);
 449                 return mod;
 450         }
 451
 452         if (developer_loading.integer)
 453                 Con_Printf("loading model %s\n", mod->name);
 454
 455         SCR_PushLoadingScreen(true, mod->name, 1);
 456
 457         // LordHavoc: unload the existing model in this slot (if there is one)
 458         if (mod->loaded || mod->mempool)
 459                 Mod_UnloadModel(mod);
 460
 461         // load the model
 462         mod->used = true;
 463         mod->crc = crc;
 464         // errors can prevent the corresponding mod->loaded = true;
 465         mod->loaded = false;
 466
 467         // default lightmap scale
 468         mod->lightmapscale = 1;
 469
 470         // default model radius and bounding box (mainly for missing models)
 471         mod->radius = 16;
 472         VectorSet(mod->normalmins, -mod->radius, -mod->radius, -mod->radius);
 473         VectorSet(mod->normalmaxs, mod->radius, mod->radius, mod->radius);
 474         VectorSet(mod->yawmins, -mod->radius, -mod->radius, -mod->radius);
 475         VectorSet(mod->yawmaxs, mod->radius, mod->radius, mod->radius);
 476         VectorSet(mod->rotatedmins, -mod->radius, -mod->radius, -mod->radius);
 477         VectorSet(mod->rotatedmaxs, mod->radius, mod->radius, mod->radius);
 478
 479         if (!q3shaders_mem)
 480         {
 481                 // load q3 shaders for the first time, or after a level change
 482                 Mod_LoadQ3Shaders();
 483         }
 484
 485         if (buf)
 486         {
 487                 char *bufend = (char *)buf + filesize;
 488
 489                 // all models use memory, so allocate a memory pool
 490                 mod->mempool = Mem_AllocPool(mod->name, 0, NULL);
 491
 492                 num = LittleLong(*((int *)buf));
 493                 // call the apropriate loader
 494                 loadmodel = mod;
 495                 if (!strcasecmp(FS_FileExtension(mod->name), "obj")) Mod_OBJ_Load(mod, buf, bufend);
 496                 else if (!memcmp(buf, "IDPO", 4)) Mod_IDP0_Load(mod, buf, bufend);
 497                 else if (!memcmp(buf, "IDP2", 4)) Mod_IDP2_Load(mod, buf, bufend);
 498                 else if (!memcmp(buf, "IDP3", 4)) Mod_IDP3_Load(mod, buf, bufend);
 499                 else if (!memcmp(buf, "IDSP", 4)) Mod_IDSP_Load(mod, buf, bufend);
 500                 else if (!memcmp(buf, "IDS2", 4)) Mod_IDS2_Load(mod, buf, bufend);
 501                 else if (!memcmp(buf, "IBSP", 4)) Mod_IBSP_Load(mod, buf, bufend);
 502                 else if (!memcmp(buf, "ZYMOTICMODEL", 12)) Mod_ZYMOTICMODEL_Load(mod, buf, bufend);
 503                 else if (!memcmp(buf, "DARKPLACESMODEL", 16)) Mod_DARKPLACESMODEL_Load(mod, buf, bufend);
 504                 else if (!memcmp(buf, "ACTRHEAD", 8)) Mod_PSKMODEL_Load(mod, buf, bufend);
 505                 else if (!memcmp(buf, "INTERQUAKEMODEL", 16)) Mod_INTERQUAKEMODEL_Load(mod, buf, bufend);
 506                 else if (strlen(mod->name) >= 4 && !strcmp(mod->name + strlen(mod->name) - 4, ".map")) Mod_MAP_Load(mod, buf, bufend);
 507                 else if (num == BSPVERSION || num == 30 || !memcmp(buf, "BSP2", 4) || !memcmp(buf, "2PSB", 4)) Mod_Q1BSP_Load(mod, buf, bufend);
 508                 else Con_Printf("Mod_LoadModel: model \"%s\" is of unknown/unsupported type\n", mod->name);
 509                 Mem_Free(buf);
 510
 511                 Mod_FindPotentialDeforms(mod);
 512
 513                 buf = FS_LoadFile(va(vabuf, sizeof(vabuf), "%s.framegroups", mod->name), tempmempool, false, &filesize);
 514                 if(buf)
 515                 {
 516                         Mod_FrameGroupify(mod, (const char *)buf);
 517                         Mem_Free(buf);
 518                 }
 519
 520                 Mod_BuildVBOs();
 521         }
 522         else if (crash)
 523         {
 524                 // LordHavoc: Sys_Error was *ANNOYING*
 525                 Con_Printf ("Mod_LoadModel: %s not found\n", mod->name);
 526         }
 527
 528         // no fatal errors occurred, so this model is ready to use.
 529         mod->loaded = true;
 530
 531         SCR_PopLoadingScreen(false);
 532
 533         return mod;
 534 }
 535
 536 void Mod_ClearUsed(void)
 537 {
 538         int i;
 539         int nummodels = (int)Mem_ExpandableArray_IndexRange(&models);
 540         dp_model_t *mod;
 541         for (i = 0;i < nummodels;i++)
 542                 if ((mod = (dp_model_t*) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0])
 543                         mod->used = false;
 544 }
 545
 546 void Mod_PurgeUnused(void)
 547 {
 548         int i;
 549         int nummodels = (int)Mem_ExpandableArray_IndexRange(&models);
 550         dp_model_t *mod;
 551         for (i = 0;i < nummodels;i++)
 552         {
 553                 if ((mod = (dp_model_t*) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && !mod->used)
 554                 {
 555                         Mod_UnloadModel(mod);
 556                         Mem_ExpandableArray_FreeRecord(&models, mod);
 557                 }
 558         }
 559 }
 560
 561 /*
 562 ==================
 563 Mod_FindName
 564
 565 ==================
 566 */
 567 dp_model_t *Mod_FindName(const char *name, const char *parentname)
 568 {
 569         int i;
 570         int nummodels;
 571         dp_model_t *mod;
 572
 573         if (!parentname)
 574                 parentname = "";
 575
 576         // if we're not dedicatd, the renderer calls will crash without video
 577         Host_StartVideo();
 578
 579         nummodels = (int)Mem_ExpandableArray_IndexRange(&models);
 580
 581         if (!name[0])
 582                 Host_Error ("Mod_ForName: empty name");
 583
 584         // search the currently loaded models
 585         for (i = 0;i < nummodels;i++)
 586         {
 587                 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))))
 588                 {
 589                         mod->used = true;
 590                         return mod;
 591                 }
 592         }
 593
 594         // no match found, create a new one
 595         mod = (dp_model_t *) Mem_ExpandableArray_AllocRecord(&models);
 596         strlcpy(mod->name, name, sizeof(mod->name));
 597         if (parentname[0])
 598                 mod->brush.parentmodel = Mod_FindName(parentname, NULL);
 599         else
 600                 mod->brush.parentmodel = NULL;
 601         mod->loaded = false;
 602         mod->used = true;
 603         return mod;
 604 }
 605
 606 /*
 607 ==================
 608 Mod_ForName
 609
 610 Loads in a model for the given name
 611 ==================
 612 */
 613 dp_model_t *Mod_ForName(const char *name, qboolean crash, qboolean checkdisk, const char *parentname)
 614 {
 615         dp_model_t *model;
 616         model = Mod_FindName(name, parentname);
 617         if (!model->loaded || checkdisk)
 618                 Mod_LoadModel(model, crash, checkdisk);
 619         return model;
 620 }
 621
 622 /*
 623 ==================
 624 Mod_Reload
 625
 626 Reloads all models if they have changed
 627 ==================
 628 */
 629 void Mod_Reload(void)
 630 {
 631         int i, count;
 632         int nummodels = (int)Mem_ExpandableArray_IndexRange(&models);
 633         dp_model_t *mod;
 634
 635         SCR_PushLoadingScreen(false, "Reloading models", 1.0);
 636         count = 0;
 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                         ++count;
 640         for (i = 0;i < nummodels;i++)
 641                 if ((mod = (dp_model_t *) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && mod->name[0] != '*' && mod->used)
 642                 {
 643                         SCR_PushLoadingScreen(true, mod->name, 1.0 / count);
 644                         Mod_LoadModel(mod, true, true);
 645                         SCR_PopLoadingScreen(false);
 646                 }
 647         SCR_PopLoadingScreen(false);
 648 }
 649
 650 unsigned char *mod_base;
 651
 652
 653 //=============================================================================
 654
 655 /*
 656 ================
 657 Mod_Print
 658 ================
 659 */
 660 static void Mod_Print(void)
 661 {
 662         int i;
 663         int nummodels = (int)Mem_ExpandableArray_IndexRange(&models);
 664         dp_model_t *mod;
 665
 666         Con_Print("Loaded models:\n");
 667         for (i = 0;i < nummodels;i++)
 668         {
 669                 if ((mod = (dp_model_t *) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && mod->name[0] != '*')
 670                 {
 671                         if (mod->brush.numsubmodels)
 672                                 Con_Printf("%4iK %s (%i submodels)\n", mod->mempool ? (int)((mod->mempool->totalsize + 1023) / 1024) : 0, mod->name, mod->brush.numsubmodels);
 673                         else
 674                                 Con_Printf("%4iK %s\n", mod->mempool ? (int)((mod->mempool->totalsize + 1023) / 1024) : 0, mod->name);
 675                 }
 676         }
 677 }
 678
 679 /*
 680 ================
 681 Mod_Precache
 682 ================
 683 */
 684 static void Mod_Precache(void)
 685 {
 686         if (Cmd_Argc() == 2)
 687                 Mod_ForName(Cmd_Argv(1), false, true, Cmd_Argv(1)[0] == '*' ? cl.model_name[1] : NULL);
 688         else
 689                 Con_Print("usage: modelprecache <filename>\n");
 690 }
 691
 692 int Mod_BuildVertexRemapTableFromElements(int numelements, const int *elements, int numvertices, int *remapvertices)
 693 {
 694         int i, count;
 695         unsigned char *used;
 696         used = (unsigned char *)Mem_Alloc(tempmempool, numvertices);
 697         memset(used, 0, numvertices);
 698         for (i = 0;i < numelements;i++)
 699                 used[elements[i]] = 1;
 700         for (i = 0, count = 0;i < numvertices;i++)
 701                 remapvertices[i] = used[i] ? count++ : -1;
 702         Mem_Free(used);
 703         return count;
 704 }
 705
 706 #if 1
 707 // fast way, using an edge hash
 708 #define TRIANGLEEDGEHASH 8192
 709 void Mod_BuildTriangleNeighbors(int *neighbors, const int *elements, int numtriangles)
 710 {
 711         int i, j, p, e1, e2, *n, hashindex, count, match;
 712         const int *e;
 713         typedef struct edgehashentry_s
 714         {
 715                 struct edgehashentry_s *next;
 716                 int triangle;
 717                 int element[2];
 718         }
 719         edgehashentry_t;
 720         static edgehashentry_t **edgehash;
 721         edgehashentry_t *edgehashentries, *hash;
 722         if (!numtriangles)
 723                 return;
 724         edgehash = (edgehashentry_t **)Mem_Alloc(tempmempool, TRIANGLEEDGEHASH * sizeof(*edgehash));
 725         // if there are too many triangles for the stack array, allocate larger buffer
 726         edgehashentries = (edgehashentry_t *)Mem_Alloc(tempmempool, numtriangles * 3 * sizeof(edgehashentry_t));
 727         // find neighboring triangles
 728         for (i = 0, e = elements, n = neighbors;i < numtriangles;i++, e += 3, n += 3)
 729         {
 730                 for (j = 0, p = 2;j < 3;p = j, j++)
 731                 {
 732                         e1 = e[p];
 733                         e2 = e[j];
 734                         // this hash index works for both forward and backward edges
 735                         hashindex = (unsigned int)(e1 + e2) % TRIANGLEEDGEHASH;
 736                         hash = edgehashentries + i * 3 + j;
 737                         hash->next = edgehash[hashindex];
 738                         edgehash[hashindex] = hash;
 739                         hash->triangle = i;
 740                         hash->element[0] = e1;
 741                         hash->element[1] = e2;
 742                 }
 743         }
 744         for (i = 0, e = elements, n = neighbors;i < numtriangles;i++, e += 3, n += 3)
 745         {
 746                 for (j = 0, p = 2;j < 3;p = j, j++)
 747                 {
 748                         e1 = e[p];
 749                         e2 = e[j];
 750                         // this hash index works for both forward and backward edges
 751                         hashindex = (unsigned int)(e1 + e2) % TRIANGLEEDGEHASH;
 752                         count = 0;
 753                         match = -1;
 754                         for (hash = edgehash[hashindex];hash;hash = hash->next)
 755                         {
 756                                 if (hash->element[0] == e2 && hash->element[1] == e1)
 757                                 {
 758                                         if (hash->triangle != i)
 759                                                 match = hash->triangle;
 760                                         count++;
 761                                 }
 762                                 else if ((hash->element[0] == e1 && hash->element[1] == e2))
 763                                         count++;
 764                         }
 765                         // detect edges shared by three triangles and make them seams
 766                         if (count > 2)
 767                                 match = -1;
 768                         n[p] = match;
 769                 }
 770
 771                 // also send a keepalive here (this can take a while too!)
 772                 CL_KeepaliveMessage(false);
 773         }
 774         // free the allocated buffer
 775         Mem_Free(edgehashentries);
 776         Mem_Free(edgehash);
 777 }
 778 #else
 779 // very slow but simple way
 780 static int Mod_FindTriangleWithEdge(const int *elements, int numtriangles, int start, int end, int ignore)
 781 {
 782         int i, match, count;
 783         count = 0;
 784         match = -1;
 785         for (i = 0;i < numtriangles;i++, elements += 3)
 786         {
 787                      if ((elements[0] == start && elements[1] == end)
 788                       || (elements[1] == start && elements[2] == end)
 789                       || (elements[2] == start && elements[0] == end))
 790                 {
 791                         if (i != ignore)
 792                                 match = i;
 793                         count++;
 794                 }
 795                 else if ((elements[1] == start && elements[0] == end)
 796                       || (elements[2] == start && elements[1] == end)
 797                       || (elements[0] == start && elements[2] == end))
 798                         count++;
 799         }
 800         // detect edges shared by three triangles and make them seams
 801         if (count > 2)
 802                 match = -1;
 803         return match;
 804 }
 805
 806 void Mod_BuildTriangleNeighbors(int *neighbors, const int *elements, int numtriangles)
 807 {
 808         int i, *n;
 809         const int *e;
 810         for (i = 0, e = elements, n = neighbors;i < numtriangles;i++, e += 3, n += 3)
 811         {
 812                 n[0] = Mod_FindTriangleWithEdge(elements, numtriangles, e[1], e[0], i);
 813                 n[1] = Mod_FindTriangleWithEdge(elements, numtriangles, e[2], e[1], i);
 814                 n[2] = Mod_FindTriangleWithEdge(elements, numtriangles, e[0], e[2], i);
 815         }
 816 }
 817 #endif
 818
 819 qboolean Mod_ValidateElements(int *element3i, unsigned short *element3s, int numtriangles, int firstvertex, int numvertices, const char *filename, int fileline)
 820 {
 821         int first = firstvertex, last = first + numvertices - 1, numelements = numtriangles * 3;
 822         int i;
 823         int invalidintcount = 0, invalidintexample = 0;
 824         int invalidshortcount = 0, invalidshortexample = 0;
 825         int invalidmismatchcount = 0, invalidmismatchexample = 0;
 826         if (element3i)
 827         {
 828                 for (i = 0; i < numelements; i++)
 829                 {
 830                         if (element3i[i] < first || element3i[i] > last)
 831                         {
 832                                 invalidintcount++;
 833                                 invalidintexample = i;
 834                         }
 835                 }
 836         }
 837         if (element3s)
 838         {
 839                 for (i = 0; i < numelements; i++)
 840                 {
 841                         if (element3s[i] < first || element3s[i] > last)
 842                         {
 843                                 invalidintcount++;
 844                                 invalidintexample = i;
 845                         }
 846                 }
 847         }
 848         if (element3i && element3s)
 849         {
 850                 for (i = 0; i < numelements; i++)
 851                 {
 852                         if (element3s[i] != element3i[i])
 853                         {
 854                                 invalidmismatchcount++;
 855                                 invalidmismatchexample = i;
 856                         }
 857                 }
 858         }
 859         if (invalidintcount || invalidshortcount || invalidmismatchcount)
 860         {
 861                 Con_Printf("Mod_ValidateElements(%i, %i, %i, %p, %p) called at %s:%d", numelements, first, last, element3i, element3s, filename, fileline);
 862                 Con_Printf(", %i elements are invalid in element3i (example: element3i[%i] == %i)", invalidintcount, invalidintexample, element3i ? element3i[invalidintexample] : 0);
 863                 Con_Printf(", %i elements are invalid in element3s (example: element3s[%i] == %i)", invalidshortcount, invalidshortexample, element3s ? element3s[invalidshortexample] : 0);
 864                 Con_Printf(", %i elements mismatch between element3i and element3s (example: element3s[%i] is %i and element3i[i] is %i)", invalidmismatchcount, invalidmismatchexample, element3i ? element3i[invalidmismatchexample] : 0, invalidmismatchexample, element3s ? element3s[invalidmismatchexample] : 0);
 865                 Con_Print(".  Please debug the engine code - these elements have been modified to not crash, but nothing more.\n");
 866
 867                 // edit the elements to make them safer, as the driver will crash otherwise
 868                 if (element3i)
 869                         for (i = 0; i < numelements; i++)
 870                                 if (element3i[i] < first || element3i[i] > last)
 871                                         element3i[i] = first;
 872                 if (element3s)
 873                         for (i = 0; i < numelements; i++)
 874                                 if (element3s[i] < first || element3s[i] > last)
 875                                         element3s[i] = first;
 876                 if (element3i && element3s)
 877                         for (i = 0; i < numelements; i++)
 878                                 if (element3s[i] != element3i[i])
 879                                         element3s[i] = element3i[i];
 880
 881                 return false;
 882         }
 883         return true;
 884 }
 885
 886 // warning: this is an expensive function!
 887 void Mod_BuildNormals(int firstvertex, int numvertices, int numtriangles, const float *vertex3f, const int *elements, float *normal3f, qboolean areaweighting)
 888 {
 889         int i, j;
 890         const int *element;
 891         float *vectorNormal;
 892         float areaNormal[3];
 893         // clear the vectors
 894         memset(normal3f + 3 * firstvertex, 0, numvertices * sizeof(float[3]));
 895         // process each vertex of each triangle and accumulate the results
 896         // use area-averaging, to make triangles with a big area have a bigger
 897         // weighting on the vertex normal than triangles with a small area
 898         // to do so, just add the 'normals' together (the bigger the area
 899         // the greater the length of the normal is
 900         element = elements;
 901         for (i = 0; i < numtriangles; i++, element += 3)
 902         {
 903                 TriangleNormal(
 904                         vertex3f + element[0] * 3,
 905                         vertex3f + element[1] * 3,
 906                         vertex3f + element[2] * 3,
 907                         areaNormal
 908                         );
 909
 910                 if (!areaweighting)
 911                         VectorNormalize(areaNormal);
 912
 913                 for (j = 0;j < 3;j++)
 914                 {
 915                         vectorNormal = normal3f + element[j] * 3;
 916                         vectorNormal[0] += areaNormal[0];
 917                         vectorNormal[1] += areaNormal[1];
 918                         vectorNormal[2] += areaNormal[2];
 919                 }
 920         }
 921         // and just normalize the accumulated vertex normal in the end
 922         vectorNormal = normal3f + 3 * firstvertex;
 923         for (i = 0; i < numvertices; i++, vectorNormal += 3)
 924                 VectorNormalize(vectorNormal);
 925 }
 926
 927 #if 0
 928 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)
 929 {
 930         float f, tangentcross[3], v10[3], v20[3], tc10[2], tc20[2];
 931         // 79 add/sub/negate/multiply (1 cycle), 1 compare (3 cycle?), total cycles not counting load/store/exchange roughly 82 cycles
 932         // 6 add, 28 subtract, 39 multiply, 1 compare, 50% chance of 6 negates
 933
 934         // 6 multiply, 9 subtract
 935         VectorSubtract(v1, v0, v10);
 936         VectorSubtract(v2, v0, v20);
 937         normal3f[0] = v20[1] * v10[2] - v20[2] * v10[1];
 938         normal3f[1] = v20[2] * v10[0] - v20[0] * v10[2];
 939         normal3f[2] = v20[0] * v10[1] - v20[1] * v10[0];
 940         // 12 multiply, 10 subtract
 941         tc10[1] = tc1[1] - tc0[1];
 942         tc20[1] = tc2[1] - tc0[1];
 943         svector3f[0] = tc10[1] * v20[0] - tc20[1] * v10[0];
 944         svector3f[1] = tc10[1] * v20[1] - tc20[1] * v10[1];
 945         svector3f[2] = tc10[1] * v20[2] - tc20[1] * v10[2];
 946         tc10[0] = tc1[0] - tc0[0];
 947         tc20[0] = tc2[0] - tc0[0];
 948         tvector3f[0] = tc10[0] * v20[0] - tc20[0] * v10[0];
 949         tvector3f[1] = tc10[0] * v20[1] - tc20[0] * v10[1];
 950         tvector3f[2] = tc10[0] * v20[2] - tc20[0] * v10[2];
 951         // 12 multiply, 4 add, 6 subtract
 952         f = DotProduct(svector3f, normal3f);
 953         svector3f[0] -= f * normal3f[0];
 954         svector3f[1] -= f * normal3f[1];
 955         svector3f[2] -= f * normal3f[2];
 956         f = DotProduct(tvector3f, normal3f);
 957         tvector3f[0] -= f * normal3f[0];
 958         tvector3f[1] -= f * normal3f[1];
 959         tvector3f[2] -= f * normal3f[2];
 960         // if texture is mapped the wrong way (counterclockwise), the tangents
 961         // have to be flipped, this is detected by calculating a normal from the
 962         // two tangents, and seeing if it is opposite the surface normal
 963         // 9 multiply, 2 add, 3 subtract, 1 compare, 50% chance of: 6 negates
 964         CrossProduct(tvector3f, svector3f, tangentcross);
 965         if (DotProduct(tangentcross, normal3f) < 0)
 966         {
 967                 VectorNegate(svector3f, svector3f);
 968                 VectorNegate(tvector3f, tvector3f);
 969         }
 970 }
 971 #endif
 972
 973 // warning: this is a very expensive function!
 974 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)
 975 {
 976         int i, tnum;
 977         float sdir[3], tdir[3], normal[3], *svec, *tvec;
 978         const float *v0, *v1, *v2, *tc0, *tc1, *tc2, *n;
 979         float f, tangentcross[3], v10[3], v20[3], tc10[2], tc20[2];
 980         const int *e;
 981         // clear the vectors
 982         memset(svector3f + 3 * firstvertex, 0, numvertices * sizeof(float[3]));
 983         memset(tvector3f + 3 * firstvertex, 0, numvertices * sizeof(float[3]));
 984         // process each vertex of each triangle and accumulate the results
 985         for (tnum = 0, e = elements;tnum < numtriangles;tnum++, e += 3)
 986         {
 987                 v0 = vertex3f + e[0] * 3;
 988                 v1 = vertex3f + e[1] * 3;
 989                 v2 = vertex3f + e[2] * 3;
 990                 tc0 = texcoord2f + e[0] * 2;
 991                 tc1 = texcoord2f + e[1] * 2;
 992                 tc2 = texcoord2f + e[2] * 2;
 993
 994                 // 79 add/sub/negate/multiply (1 cycle), 1 compare (3 cycle?), total cycles not counting load/store/exchange roughly 82 cycles
 995                 // 6 add, 28 subtract, 39 multiply, 1 compare, 50% chance of 6 negates
 996
 997                 // calculate the edge directions and surface normal
 998                 // 6 multiply, 9 subtract
 999                 VectorSubtract(v1, v0, v10);
1000                 VectorSubtract(v2, v0, v20);
1001                 normal[0] = v20[1] * v10[2] - v20[2] * v10[1];
1002                 normal[1] = v20[2] * v10[0] - v20[0] * v10[2];
1003                 normal[2] = v20[0] * v10[1] - v20[1] * v10[0];
1004
1005                 // calculate the tangents
1006                 // 12 multiply, 10 subtract
1007                 tc10[1] = tc1[1] - tc0[1];
1008                 tc20[1] = tc2[1] - tc0[1];
1009                 sdir[0] = tc10[1] * v20[0] - tc20[1] * v10[0];
1010                 sdir[1] = tc10[1] * v20[1] - tc20[1] * v10[1];
1011                 sdir[2] = tc10[1] * v20[2] - tc20[1] * v10[2];
1012                 tc10[0] = tc1[0] - tc0[0];
1013                 tc20[0] = tc2[0] - tc0[0];
1014                 tdir[0] = tc10[0] * v20[0] - tc20[0] * v10[0];
1015                 tdir[1] = tc10[0] * v20[1] - tc20[0] * v10[1];
1016                 tdir[2] = tc10[0] * v20[2] - tc20[0] * v10[2];
1017
1018                 // if texture is mapped the wrong way (counterclockwise), the tangents
1019                 // have to be flipped, this is detected by calculating a normal from the
1020                 // two tangents, and seeing if it is opposite the surface normal
1021                 // 9 multiply, 2 add, 3 subtract, 1 compare, 50% chance of: 6 negates
1022                 CrossProduct(tdir, sdir, tangentcross);
1023                 if (DotProduct(tangentcross, normal) < 0)
1024                 {
1025                         VectorNegate(sdir, sdir);
1026                         VectorNegate(tdir, tdir);
1027                 }
1028
1029                 if (!areaweighting)
1030                 {
1031                         VectorNormalize(sdir);
1032                         VectorNormalize(tdir);
1033                 }
1034                 for (i = 0;i < 3;i++)
1035                 {
1036                         VectorAdd(svector3f + e[i]*3, sdir, svector3f + e[i]*3);
1037                         VectorAdd(tvector3f + e[i]*3, tdir, tvector3f + e[i]*3);
1038                 }
1039         }
1040         // make the tangents completely perpendicular to the surface normal, and
1041         // then normalize them
1042         // 16 assignments, 2 divide, 2 sqrt, 2 negates, 14 adds, 24 multiplies
1043         for (i = 0, svec = svector3f + 3 * firstvertex, tvec = tvector3f + 3 * firstvertex, n = normal3f + 3 * firstvertex;i < numvertices;i++, svec += 3, tvec += 3, n += 3)
1044         {
1045                 f = -DotProduct(svec, n);
1046                 VectorMA(svec, f, n, svec);
1047                 VectorNormalize(svec);
1048                 f = -DotProduct(tvec, n);
1049                 VectorMA(tvec, f, n, tvec);
1050                 VectorNormalize(tvec);
1051         }
1052 }
1053
1054 void Mod_AllocSurfMesh(mempool_t *mempool, int numvertices, int numtriangles, qboolean lightmapoffsets, qboolean vertexcolors, qboolean neighbors)
1055 {
1056         unsigned char *data;
1057         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));
1058         loadmodel->surfmesh.num_vertices = numvertices;
1059         loadmodel->surfmesh.num_triangles = numtriangles;
1060         if (loadmodel->surfmesh.num_vertices)
1061         {
1062                 loadmodel->surfmesh.data_vertex3f = (float *)data, data += sizeof(float[3]) * loadmodel->surfmesh.num_vertices;
1063                 loadmodel->surfmesh.data_svector3f = (float *)data, data += sizeof(float[3]) * loadmodel->surfmesh.num_vertices;
1064                 loadmodel->surfmesh.data_tvector3f = (float *)data, data += sizeof(float[3]) * loadmodel->surfmesh.num_vertices;
1065                 loadmodel->surfmesh.data_normal3f = (float *)data, data += sizeof(float[3]) * loadmodel->surfmesh.num_vertices;
1066                 loadmodel->surfmesh.data_texcoordtexture2f = (float *)data, data += sizeof(float[2]) * loadmodel->surfmesh.num_vertices;
1067                 loadmodel->surfmesh.data_texcoordlightmap2f = (float *)data, data += sizeof(float[2]) * loadmodel->surfmesh.num_vertices;
1068                 if (vertexcolors)
1069                         loadmodel->surfmesh.data_lightmapcolor4f = (float *)data, data += sizeof(float[4]) * loadmodel->surfmesh.num_vertices;
1070                 if (lightmapoffsets)
1071                         loadmodel->surfmesh.data_lightmapoffsets = (int *)data, data += sizeof(int) * loadmodel->surfmesh.num_vertices;
1072         }
1073         if (loadmodel->surfmesh.num_triangles)
1074         {
1075                 loadmodel->surfmesh.data_element3i = (int *)data, data += sizeof(int[3]) * loadmodel->surfmesh.num_triangles;
1076                 if (neighbors)
1077                         loadmodel->surfmesh.data_neighbor3i = (int *)data, data += sizeof(int[3]) * loadmodel->surfmesh.num_triangles;
1078                 if (loadmodel->surfmesh.num_vertices <= 65536)
1079                         loadmodel->surfmesh.data_element3s = (unsigned short *)data, data += sizeof(unsigned short[3]) * loadmodel->surfmesh.num_triangles;
1080         }
1081 }
1082
1083 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)
1084 {
1085         shadowmesh_t *newmesh;
1086         unsigned char *data;
1087         int size;
1088         size = sizeof(shadowmesh_t);
1089         size += maxverts * sizeof(float[3]);
1090         if (light)
1091                 size += maxverts * sizeof(float[11]);
1092         size += maxtriangles * sizeof(int[3]);
1093         if (maxverts <= 65536)
1094                 size += maxtriangles * sizeof(unsigned short[3]);
1095         if (neighbors)
1096                 size += maxtriangles * sizeof(int[3]);
1097         if (expandable)
1098                 size += SHADOWMESHVERTEXHASH * sizeof(shadowmeshvertexhash_t *) + maxverts * sizeof(shadowmeshvertexhash_t);
1099         data = (unsigned char *)Mem_Alloc(mempool, size);
1100         newmesh = (shadowmesh_t *)data;data += sizeof(*newmesh);
1101         newmesh->map_diffuse = map_diffuse;
1102         newmesh->map_specular = map_specular;
1103         newmesh->map_normal = map_normal;
1104         newmesh->maxverts = maxverts;
1105         newmesh->maxtriangles = maxtriangles;
1106         newmesh->numverts = 0;
1107         newmesh->numtriangles = 0;
1108         memset(newmesh->sideoffsets, 0, sizeof(newmesh->sideoffsets));
1109         memset(newmesh->sidetotals, 0, sizeof(newmesh->sidetotals));
1110
1111         newmesh->vertex3f = (float *)data;data += maxverts * sizeof(float[3]);
1112         if (light)
1113         {
1114                 newmesh->svector3f = (float *)data;data += maxverts * sizeof(float[3]);
1115                 newmesh->tvector3f = (float *)data;data += maxverts * sizeof(float[3]);
1116                 newmesh->normal3f = (float *)data;data += maxverts * sizeof(float[3]);
1117                 newmesh->texcoord2f = (float *)data;data += maxverts * sizeof(float[2]);
1118         }
1119         newmesh->element3i = (int *)data;data += maxtriangles * sizeof(int[3]);
1120         if (neighbors)
1121         {
1122                 newmesh->neighbor3i = (int *)data;data += maxtriangles * sizeof(int[3]);
1123         }
1124         if (expandable)
1125         {
1126                 newmesh->vertexhashtable = (shadowmeshvertexhash_t **)data;data += SHADOWMESHVERTEXHASH * sizeof(shadowmeshvertexhash_t *);
1127                 newmesh->vertexhashentries = (shadowmeshvertexhash_t *)data;data += maxverts * sizeof(shadowmeshvertexhash_t);
1128         }
1129         if (maxverts <= 65536)
1130                 newmesh->element3s = (unsigned short *)data;data += maxtriangles * sizeof(unsigned short[3]);
1131         return newmesh;
1132 }
1133
1134 shadowmesh_t *Mod_ShadowMesh_ReAlloc(mempool_t *mempool, shadowmesh_t *oldmesh, int light, int neighbors)
1135 {
1136         shadowmesh_t *newmesh;
1137         newmesh = Mod_ShadowMesh_Alloc(mempool, oldmesh->numverts, oldmesh->numtriangles, oldmesh->map_diffuse, oldmesh->map_specular, oldmesh->map_normal, light, neighbors, false);
1138         newmesh->numverts = oldmesh->numverts;
1139         newmesh->numtriangles = oldmesh->numtriangles;
1140         memcpy(newmesh->sideoffsets, oldmesh->sideoffsets, sizeof(oldmesh->sideoffsets));
1141         memcpy(newmesh->sidetotals, oldmesh->sidetotals, sizeof(oldmesh->sidetotals));
1142
1143         memcpy(newmesh->vertex3f, oldmesh->vertex3f, oldmesh->numverts * sizeof(float[3]));
1144         if (newmesh->svector3f && oldmesh->svector3f)
1145         {
1146                 memcpy(newmesh->svector3f, oldmesh->svector3f, oldmesh->numverts * sizeof(float[3]));
1147                 memcpy(newmesh->tvector3f, oldmesh->tvector3f, oldmesh->numverts * sizeof(float[3]));
1148                 memcpy(newmesh->normal3f, oldmesh->normal3f, oldmesh->numverts * sizeof(float[3]));
1149                 memcpy(newmesh->texcoord2f, oldmesh->texcoord2f, oldmesh->numverts * sizeof(float[2]));
1150         }
1151         memcpy(newmesh->element3i, oldmesh->element3i, oldmesh->numtriangles * sizeof(int[3]));
1152         if (newmesh->neighbor3i && oldmesh->neighbor3i)
1153                 memcpy(newmesh->neighbor3i, oldmesh->neighbor3i, oldmesh->numtriangles * sizeof(int[3]));
1154         return newmesh;
1155 }
1156
1157 int Mod_ShadowMesh_AddVertex(shadowmesh_t *mesh, float *vertex14f)
1158 {
1159         int hashindex, vnum;
1160         shadowmeshvertexhash_t *hash;
1161         // this uses prime numbers intentionally
1162         hashindex = (unsigned int) (vertex14f[0] * 2003 + vertex14f[1] * 4001 + vertex14f[2] * 7919) % SHADOWMESHVERTEXHASH;
1163         for (hash = mesh->vertexhashtable[hashindex];hash;hash = hash->next)
1164         {
1165                 vnum = (hash - mesh->vertexhashentries);
1166                 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]))
1167                  && (mesh->svector3f == NULL || (mesh->svector3f[vnum * 3 + 0] == vertex14f[3] && mesh->svector3f[vnum * 3 + 1] == vertex14f[4] && mesh->svector3f[vnum * 3 + 2] == vertex14f[5]))
1168                  && (mesh->tvector3f == NULL || (mesh->tvector3f[vnum * 3 + 0] == vertex14f[6] && mesh->tvector3f[vnum * 3 + 1] == vertex14f[7] && mesh->tvector3f[vnum * 3 + 2] == vertex14f[8]))
1169                  && (mesh->normal3f == NULL || (mesh->normal3f[vnum * 3 + 0] == vertex14f[9] && mesh->normal3f[vnum * 3 + 1] == vertex14f[10] && mesh->normal3f[vnum * 3 + 2] == vertex14f[11]))
1170                  && (mesh->texcoord2f == NULL || (mesh->texcoord2f[vnum * 2 + 0] == vertex14f[12] && mesh->texcoord2f[vnum * 2 + 1] == vertex14f[13])))
1171                         return hash - mesh->vertexhashentries;
1172         }
1173         vnum = mesh->numverts++;
1174         hash = mesh->vertexhashentries + vnum;
1175         hash->next = mesh->vertexhashtable[hashindex];
1176         mesh->vertexhashtable[hashindex] = hash;
1177         if (mesh->vertex3f) {mesh->vertex3f[vnum * 3 + 0] = vertex14f[0];mesh->vertex3f[vnum * 3 + 1] = vertex14f[1];mesh->vertex3f[vnum * 3 + 2] = vertex14f[2];}
1178         if (mesh->svector3f) {mesh->svector3f[vnum * 3 + 0] = vertex14f[3];mesh->svector3f[vnum * 3 + 1] = vertex14f[4];mesh->svector3f[vnum * 3 + 2] = vertex14f[5];}
1179         if (mesh->tvector3f) {mesh->tvector3f[vnum * 3 + 0] = vertex14f[6];mesh->tvector3f[vnum * 3 + 1] = vertex14f[7];mesh->tvector3f[vnum * 3 + 2] = vertex14f[8];}
1180         if (mesh->normal3f) {mesh->normal3f[vnum * 3 + 0] = vertex14f[9];mesh->normal3f[vnum * 3 + 1] = vertex14f[10];mesh->normal3f[vnum * 3 + 2] = vertex14f[11];}
1181         if (mesh->texcoord2f) {mesh->texcoord2f[vnum * 2 + 0] = vertex14f[12];mesh->texcoord2f[vnum * 2 + 1] = vertex14f[13];}
1182         return vnum;
1183 }
1184
1185 void Mod_ShadowMesh_AddTriangle(mempool_t *mempool, shadowmesh_t *mesh, rtexture_t *map_diffuse, rtexture_t *map_specular, rtexture_t *map_normal, float *vertex14f)
1186 {
1187         if (mesh->numtriangles == 0)
1188         {
1189                 // set the properties on this empty mesh to be more favorable...
1190                 // (note: this case only occurs for the first triangle added to a new mesh chain)
1191                 mesh->map_diffuse = map_diffuse;
1192                 mesh->map_specular = map_specular;
1193                 mesh->map_normal = map_normal;
1194         }
1195         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)
1196         {
1197                 if (mesh->next == NULL)
1198                         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);
1199                 mesh = mesh->next;
1200         }
1201         mesh->element3i[mesh->numtriangles * 3 + 0] = Mod_ShadowMesh_AddVertex(mesh, vertex14f + 14 * 0);
1202         mesh->element3i[mesh->numtriangles * 3 + 1] = Mod_ShadowMesh_AddVertex(mesh, vertex14f + 14 * 1);
1203         mesh->element3i[mesh->numtriangles * 3 + 2] = Mod_ShadowMesh_AddVertex(mesh, vertex14f + 14 * 2);
1204         mesh->numtriangles++;
1205 }
1206
1207 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)
1208 {
1209         int i, j, e;
1210         float vbuf[3*14], *v;
1211         memset(vbuf, 0, sizeof(vbuf));
1212         for (i = 0;i < numtris;i++)
1213         {
1214                 for (j = 0, v = vbuf;j < 3;j++, v += 14)
1215                 {
1216                         e = *element3i++;
1217                         if (vertex3f)
1218                         {
1219                                 v[0] = vertex3f[e * 3 + 0];
1220                                 v[1] = vertex3f[e * 3 + 1];
1221                                 v[2] = vertex3f[e * 3 + 2];
1222                         }
1223                         if (svector3f)
1224                         {
1225                                 v[3] = svector3f[e * 3 + 0];
1226                                 v[4] = svector3f[e * 3 + 1];
1227                                 v[5] = svector3f[e * 3 + 2];
1228                         }
1229                         if (tvector3f)
1230                         {
1231                                 v[6] = tvector3f[e * 3 + 0];
1232                                 v[7] = tvector3f[e * 3 + 1];
1233                                 v[8] = tvector3f[e * 3 + 2];
1234                         }
1235                         if (normal3f)
1236                         {
1237                                 v[9] = normal3f[e * 3 + 0];
1238                                 v[10] = normal3f[e * 3 + 1];
1239                                 v[11] = normal3f[e * 3 + 2];
1240                         }
1241                         if (texcoord2f)
1242                         {
1243                                 v[12] = texcoord2f[e * 2 + 0];
1244                                 v[13] = texcoord2f[e * 2 + 1];
1245                         }
1246                 }
1247                 Mod_ShadowMesh_AddTriangle(mempool, mesh, map_diffuse, map_specular, map_normal, vbuf);
1248         }
1249
1250         // the triangle calculation can take a while, so let's do a keepalive here
1251         CL_KeepaliveMessage(false);
1252 }
1253
1254 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)
1255 {
1256         // the preparation before shadow mesh initialization can take a while, so let's do a keepalive here
1257         CL_KeepaliveMessage(false);
1258
1259         return Mod_ShadowMesh_Alloc(mempool, maxverts, maxtriangles, map_diffuse, map_specular, map_normal, light, neighbors, expandable);
1260 }
1261
1262 static void Mod_ShadowMesh_CreateVBOs(shadowmesh_t *mesh, mempool_t *mempool)
1263 {
1264         if (!mesh->numverts)
1265                 return;
1266
1267         // make sure we don't crash inside the driver if something went wrong, as it's annoying to debug
1268         Mod_ValidateElements(mesh->element3i, mesh->element3s, mesh->numtriangles, 0, mesh->numverts, __FILE__, __LINE__);
1269
1270         // build r_vertexmesh_t array
1271         // (compressed interleaved array for D3D)
1272         if (!mesh->vertexmesh && mesh->texcoord2f && vid.useinterleavedarrays)
1273         {
1274                 int vertexindex;
1275                 int numvertices = mesh->numverts;
1276                 r_vertexmesh_t *vertexmesh;
1277                 mesh->vertexmesh = vertexmesh = (r_vertexmesh_t*)Mem_Alloc(mempool, numvertices * sizeof(*mesh->vertexmesh));
1278                 for (vertexindex = 0;vertexindex < numvertices;vertexindex++, vertexmesh++)
1279                 {
1280                         VectorCopy(mesh->vertex3f + 3*vertexindex, vertexmesh->vertex3f);
1281                         VectorScale(mesh->svector3f + 3*vertexindex, 1.0f, vertexmesh->svector3f);
1282                         VectorScale(mesh->tvector3f + 3*vertexindex, 1.0f, vertexmesh->tvector3f);
1283                         VectorScale(mesh->normal3f + 3*vertexindex, 1.0f, vertexmesh->normal3f);
1284                         Vector2Copy(mesh->texcoord2f + 2*vertexindex, vertexmesh->texcoordtexture2f);
1285                 }
1286         }
1287
1288         // upload short indices as a buffer
1289         if (mesh->element3s && !mesh->element3s_indexbuffer)
1290                 mesh->element3s_indexbuffer = R_Mesh_CreateMeshBuffer(mesh->element3s, mesh->numtriangles * sizeof(short[3]), "shadowmesh", true, false, false, true);
1291
1292         // upload int indices as a buffer
1293         if (mesh->element3i && !mesh->element3i_indexbuffer && !mesh->element3s)
1294                 mesh->element3i_indexbuffer = R_Mesh_CreateMeshBuffer(mesh->element3i, mesh->numtriangles * sizeof(int[3]), "shadowmesh", true, false, false, false);
1295
1296         // vertex buffer is several arrays and we put them in the same buffer
1297         //
1298         // is this wise?  the texcoordtexture2f array is used with dynamic
1299         // vertex/svector/tvector/normal when rendering animated models, on the
1300         // other hand animated models don't use a lot of vertices anyway...
1301         if (!mesh->vbo_vertexbuffer && !vid.useinterleavedarrays)
1302         {
1303                 int size;
1304                 unsigned char *mem;
1305                 size = 0;
1306                 mesh->vbooffset_vertexmesh         = size;if (mesh->vertexmesh        ) size += mesh->numverts * sizeof(r_vertexmesh_t);
1307                 mesh->vbooffset_vertex3f           = size;if (mesh->vertex3f          ) size += mesh->numverts * sizeof(float[3]);
1308                 mesh->vbooffset_svector3f          = size;if (mesh->svector3f         ) size += mesh->numverts * sizeof(float[3]);
1309                 mesh->vbooffset_tvector3f          = size;if (mesh->tvector3f         ) size += mesh->numverts * sizeof(float[3]);
1310                 mesh->vbooffset_normal3f           = size;if (mesh->normal3f          ) size += mesh->numverts * sizeof(float[3]);
1311                 mesh->vbooffset_texcoord2f         = size;if (mesh->texcoord2f        ) size += mesh->numverts * sizeof(float[2]);
1312                 mem = (unsigned char *)Mem_Alloc(tempmempool, size);
1313                 if (mesh->vertexmesh        ) memcpy(mem + mesh->vbooffset_vertexmesh        , mesh->vertexmesh        , mesh->numverts * sizeof(r_vertexmesh_t));
1314                 if (mesh->vertex3f          ) memcpy(mem + mesh->vbooffset_vertex3f          , mesh->vertex3f          , mesh->numverts * sizeof(float[3]));
1315                 if (mesh->svector3f         ) memcpy(mem + mesh->vbooffset_svector3f         , mesh->svector3f         , mesh->numverts * sizeof(float[3]));
1316                 if (mesh->tvector3f         ) memcpy(mem + mesh->vbooffset_tvector3f         , mesh->tvector3f         , mesh->numverts * sizeof(float[3]));
1317                 if (mesh->normal3f          ) memcpy(mem + mesh->vbooffset_normal3f          , mesh->normal3f          , mesh->numverts * sizeof(float[3]));
1318                 if (mesh->texcoord2f        ) memcpy(mem + mesh->vbooffset_texcoord2f        , mesh->texcoord2f        , mesh->numverts * sizeof(float[2]));
1319                 mesh->vbo_vertexbuffer = R_Mesh_CreateMeshBuffer(mem, size, "shadowmesh", false, false, false, false);
1320                 Mem_Free(mem);
1321         }
1322 }
1323
1324 shadowmesh_t *Mod_ShadowMesh_Finish(mempool_t *mempool, shadowmesh_t *firstmesh, qboolean light, qboolean neighbors, qboolean createvbo)
1325 {
1326         shadowmesh_t *mesh, *newmesh, *nextmesh;
1327         // reallocate meshs to conserve space
1328         for (mesh = firstmesh, firstmesh = NULL;mesh;mesh = nextmesh)
1329         {
1330                 nextmesh = mesh->next;
1331                 if (mesh->numverts >= 3 && mesh->numtriangles >= 1)
1332                 {
1333                         newmesh = Mod_ShadowMesh_ReAlloc(mempool, mesh, light, neighbors);
1334                         newmesh->next = firstmesh;
1335                         firstmesh = newmesh;
1336                         if (newmesh->element3s)
1337                         {
1338                                 int i;
1339                                 for (i = 0;i < newmesh->numtriangles*3;i++)
1340                                         newmesh->element3s[i] = newmesh->element3i[i];
1341                         }
1342                         if (createvbo)
1343                                 Mod_ShadowMesh_CreateVBOs(newmesh, mempool);
1344                 }
1345                 Mem_Free(mesh);
1346         }
1347
1348         // this can take a while, so let's do a keepalive here
1349         CL_KeepaliveMessage(false);
1350
1351         return firstmesh;
1352 }
1353
1354 void Mod_ShadowMesh_CalcBBox(shadowmesh_t *firstmesh, vec3_t mins, vec3_t maxs, vec3_t center, float *radius)
1355 {
1356         int i;
1357         shadowmesh_t *mesh;
1358         vec3_t nmins, nmaxs, ncenter, temp;
1359         float nradius2, dist2, *v;
1360         VectorClear(nmins);
1361         VectorClear(nmaxs);
1362         // calculate bbox
1363         for (mesh = firstmesh;mesh;mesh = mesh->next)
1364         {
1365                 if (mesh == firstmesh)
1366                 {
1367                         VectorCopy(mesh->vertex3f, nmins);
1368                         VectorCopy(mesh->vertex3f, nmaxs);
1369                 }
1370                 for (i = 0, v = mesh->vertex3f;i < mesh->numverts;i++, v += 3)
1371                 {
1372                         if (nmins[0] > v[0]) nmins[0] = v[0];if (nmaxs[0] < v[0]) nmaxs[0] = v[0];
1373                         if (nmins[1] > v[1]) nmins[1] = v[1];if (nmaxs[1] < v[1]) nmaxs[1] = v[1];
1374                         if (nmins[2] > v[2]) nmins[2] = v[2];if (nmaxs[2] < v[2]) nmaxs[2] = v[2];
1375                 }
1376         }
1377         // calculate center and radius
1378         ncenter[0] = (nmins[0] + nmaxs[0]) * 0.5f;
1379         ncenter[1] = (nmins[1] + nmaxs[1]) * 0.5f;
1380         ncenter[2] = (nmins[2] + nmaxs[2]) * 0.5f;
1381         nradius2 = 0;
1382         for (mesh = firstmesh;mesh;mesh = mesh->next)
1383         {
1384                 for (i = 0, v = mesh->vertex3f;i < mesh->numverts;i++, v += 3)
1385                 {
1386                         VectorSubtract(v, ncenter, temp);
1387                         dist2 = DotProduct(temp, temp);
1388                         if (nradius2 < dist2)
1389                                 nradius2 = dist2;
1390                 }
1391         }
1392         // return data
1393         if (mins)
1394                 VectorCopy(nmins, mins);
1395         if (maxs)
1396                 VectorCopy(nmaxs, maxs);
1397         if (center)
1398                 VectorCopy(ncenter, center);
1399         if (radius)
1400                 *radius = sqrt(nradius2);
1401 }
1402
1403 void Mod_ShadowMesh_Free(shadowmesh_t *mesh)
1404 {
1405         shadowmesh_t *nextmesh;
1406         for (;mesh;mesh = nextmesh)
1407         {
1408                 if (mesh->element3i_indexbuffer)
1409                         R_Mesh_DestroyMeshBuffer(mesh->element3i_indexbuffer);
1410                 if (mesh->element3s_indexbuffer)
1411                         R_Mesh_DestroyMeshBuffer(mesh->element3s_indexbuffer);
1412                 if (mesh->vbo_vertexbuffer)
1413                         R_Mesh_DestroyMeshBuffer(mesh->vbo_vertexbuffer);
1414                 nextmesh = mesh->next;
1415                 Mem_Free(mesh);
1416         }
1417 }
1418
1419 void Mod_CreateCollisionMesh(dp_model_t *mod)
1420 {
1421         int k, numcollisionmeshtriangles;
1422         qboolean usesinglecollisionmesh = false;
1423         const msurface_t *surface = NULL;
1424
1425         mempool_t *mempool = mod->mempool;
1426         if (!mempool && mod->brush.parentmodel)
1427                 mempool = mod->brush.parentmodel->mempool;
1428         // make a single combined collision mesh for physics engine use
1429         // TODO rewrite this to use the collision brushes as source, to fix issues with e.g. common/caulk which creates no drawsurface
1430         numcollisionmeshtriangles = 0;
1431         for (k = 0;k < mod->nummodelsurfaces;k++)
1432         {
1433                 surface = mod->data_surfaces + mod->firstmodelsurface + k;
1434                 if (!strcmp(surface->texture->name, "collision") || !strcmp(surface->texture->name, "collisionconvex")) // found collision mesh
1435                 {
1436                         usesinglecollisionmesh = true;
1437                         numcollisionmeshtriangles = surface->num_triangles;
1438                         break;
1439                 }
1440                 if (!(surface->texture->supercontents & SUPERCONTENTS_SOLID))
1441                         continue;
1442                 numcollisionmeshtriangles += surface->num_triangles;
1443         }
1444         mod->brush.collisionmesh = Mod_ShadowMesh_Begin(mempool, numcollisionmeshtriangles * 3, numcollisionmeshtriangles, NULL, NULL, NULL, false, false, true);
1445         if (usesinglecollisionmesh)
1446                 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));
1447         else
1448         {
1449                 for (k = 0;k < mod->nummodelsurfaces;k++)
1450                 {
1451                         surface = mod->data_surfaces + mod->firstmodelsurface + k;
1452                         if (!(surface->texture->supercontents & SUPERCONTENTS_SOLID))
1453                                 continue;
1454                         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));
1455                 }
1456         }
1457         mod->brush.collisionmesh = Mod_ShadowMesh_Finish(mempool, mod->brush.collisionmesh, false, false, false);
1458 }
1459
1460 #if 0
1461 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)
1462 {
1463         float v[3], tc[3];
1464         v[0] = ix;
1465         v[1] = iy;
1466         if (ix >= 0 && iy >= 0 && ix < imagewidth && iy < imageheight)
1467                 v[2] = (imagepixels[((iy*imagewidth)+ix)*4+0] + imagepixels[((iy*imagewidth)+ix)*4+1] + imagepixels[((iy*imagewidth)+ix)*4+2]) * (1.0f / 765.0f);
1468         else
1469                 v[2] = 0;
1470         Matrix4x4_Transform(pixelstepmatrix, v, vertex3f);
1471         Matrix4x4_Transform(pixeltexturestepmatrix, v, tc);
1472         texcoord2f[0] = tc[0];
1473         texcoord2f[1] = tc[1];
1474 }
1475
1476 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)
1477 {
1478         float vup[3], vdown[3], vleft[3], vright[3];
1479         float tcup[3], tcdown[3], tcleft[3], tcright[3];
1480         float sv[3], tv[3], nl[3];
1481         Mod_GetTerrainVertex3fTexCoord2fFromBGRA(imagepixels, imagewidth, imageheight, ix, iy, vertex3f, texcoord2f, pixelstepmatrix, pixeltexturestepmatrix);
1482         Mod_GetTerrainVertex3fTexCoord2fFromBGRA(imagepixels, imagewidth, imageheight, ix, iy - 1, vup, tcup, pixelstepmatrix, pixeltexturestepmatrix);
1483         Mod_GetTerrainVertex3fTexCoord2fFromBGRA(imagepixels, imagewidth, imageheight, ix, iy + 1, vdown, tcdown, pixelstepmatrix, pixeltexturestepmatrix);
1484         Mod_GetTerrainVertex3fTexCoord2fFromBGRA(imagepixels, imagewidth, imageheight, ix - 1, iy, vleft, tcleft, pixelstepmatrix, pixeltexturestepmatrix);
1485         Mod_GetTerrainVertex3fTexCoord2fFromBGRA(imagepixels, imagewidth, imageheight, ix + 1, iy, vright, tcright, pixelstepmatrix, pixeltexturestepmatrix);
1486         Mod_BuildBumpVectors(vertex3f, vup, vright, texcoord2f, tcup, tcright, svector3f, tvector3f, normal3f);
1487         Mod_BuildBumpVectors(vertex3f, vright, vdown, texcoord2f, tcright, tcdown, sv, tv, nl);
1488         VectorAdd(svector3f, sv, svector3f);
1489         VectorAdd(tvector3f, tv, tvector3f);
1490         VectorAdd(normal3f, nl, normal3f);
1491         Mod_BuildBumpVectors(vertex3f, vdown, vleft, texcoord2f, tcdown, tcleft, sv, tv, nl);
1492         VectorAdd(svector3f, sv, svector3f);
1493         VectorAdd(tvector3f, tv, tvector3f);
1494         VectorAdd(normal3f, nl, normal3f);
1495         Mod_BuildBumpVectors(vertex3f, vleft, vup, texcoord2f, tcleft, tcup, sv, tv, nl);
1496         VectorAdd(svector3f, sv, svector3f);
1497         VectorAdd(tvector3f, tv, tvector3f);
1498         VectorAdd(normal3f, nl, normal3f);
1499 }
1500
1501 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)
1502 {
1503         int x, y, ix, iy, *e;
1504         e = element3i;
1505         for (y = 0;y < height;y++)
1506         {
1507                 for (x = 0;x < width;x++)
1508                 {
1509                         e[0] = (y + 1) * (width + 1) + (x + 0);
1510                         e[1] = (y + 0) * (width + 1) + (x + 0);
1511                         e[2] = (y + 1) * (width + 1) + (x + 1);
1512                         e[3] = (y + 0) * (width + 1) + (x + 0);
1513                         e[4] = (y + 0) * (width + 1) + (x + 1);
1514                         e[5] = (y + 1) * (width + 1) + (x + 1);
1515                         e += 6;
1516                 }
1517         }
1518         Mod_BuildTriangleNeighbors(neighbor3i, element3i, width*height*2);
1519         for (y = 0, iy = y1;y < height + 1;y++, iy++)
1520                 for (x = 0, ix = x1;x < width + 1;x++, ix++, vertex3f += 3, texcoord2f += 2, svector3f += 3, tvector3f += 3, normal3f += 3)
1521                         Mod_GetTerrainVertexFromBGRA(imagepixels, imagewidth, imageheight, ix, iy, vertex3f, texcoord2f, svector3f, tvector3f, normal3f, pixelstepmatrix, pixeltexturestepmatrix);
1522 }
1523 #endif
1524
1525 #if 0
1526 void Mod_Terrain_SurfaceRecurseChunk(dp_model_t *model, int stepsize, int x, int y)
1527 {
1528         float mins[3];
1529         float maxs[3];
1530         float chunkwidth = min(stepsize, model->terrain.width - 1 - x);
1531         float chunkheight = min(stepsize, model->terrain.height - 1 - y);
1532         float viewvector[3];
1533         unsigned int firstvertex;
1534         unsigned int *e;
1535         float *v;
1536         if (chunkwidth < 2 || chunkheight < 2)
1537                 return;
1538         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]);
1539         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]);
1540         viewvector[0] = bound(mins[0], localvieworigin, maxs[0]) - model->terrain.vieworigin[0];
1541         viewvector[1] = bound(mins[1], localvieworigin, maxs[1]) - model->terrain.vieworigin[1];
1542         viewvector[2] = bound(mins[2], localvieworigin, maxs[2]) - model->terrain.vieworigin[2];
1543         if (stepsize > 1 && VectorLength(viewvector) < stepsize*model->terrain.scale[0]*r_terrain_lodscale.value)
1544         {
1545                 // too close for this stepsize, emit as 4 chunks instead
1546                 stepsize /= 2;
1547                 Mod_Terrain_SurfaceRecurseChunk(model, stepsize, x, y);
1548                 Mod_Terrain_SurfaceRecurseChunk(model, stepsize, x+stepsize, y);
1549                 Mod_Terrain_SurfaceRecurseChunk(model, stepsize, x, y+stepsize);
1550                 Mod_Terrain_SurfaceRecurseChunk(model, stepsize, x+stepsize, y+stepsize);
1551                 return;
1552         }
1553         // emit the geometry at stepsize into our vertex buffer / index buffer
1554         // we add two columns and two rows for skirt
1555         outwidth = chunkwidth+2;
1556         outheight = chunkheight+2;
1557         outwidth2 = outwidth-1;
1558         outheight2 = outheight-1;
1559         outwidth3 = outwidth+1;
1560         outheight3 = outheight+1;
1561         firstvertex = numvertices;
1562         e = model->terrain.element3i + numtriangles;
1563         numtriangles += chunkwidth*chunkheight*2+chunkwidth*2*2+chunkheight*2*2;
1564         v = model->terrain.vertex3f + numvertices;
1565         numvertices += (chunkwidth+1)*(chunkheight+1)+(chunkwidth+1)*2+(chunkheight+1)*2;
1566         // emit the triangles (note: the skirt is treated as two extra rows and two extra columns)
1567         for (ty = 0;ty < outheight;ty++)
1568         {
1569                 for (tx = 0;tx < outwidth;tx++)
1570                 {
1571                         *e++ = firstvertex + (ty  )*outwidth3+(tx  );
1572                         *e++ = firstvertex + (ty  )*outwidth3+(tx+1);
1573                         *e++ = firstvertex + (ty+1)*outwidth3+(tx+1);
1574                         *e++ = firstvertex + (ty  )*outwidth3+(tx  );
1575                         *e++ = firstvertex + (ty+1)*outwidth3+(tx+1);
1576                         *e++ = firstvertex + (ty+1)*outwidth3+(tx  );
1577                 }
1578         }
1579         // TODO: emit surface vertices (x+tx*stepsize, y+ty*stepsize)
1580         for (ty = 0;ty <= outheight;ty++)
1581         {
1582                 skirtrow = ty == 0 || ty == outheight;
1583                 ry = y+bound(1, ty, outheight)*stepsize;
1584                 for (tx = 0;tx <= outwidth;tx++)
1585                 {
1586                         skirt = skirtrow || tx == 0 || tx == outwidth;
1587                         rx = x+bound(1, tx, outwidth)*stepsize;
1588                         v[0] = rx*scale[0];
1589                         v[1] = ry*scale[1];
1590                         v[2] = heightmap[ry*terrainwidth+rx]*scale[2];
1591                         v += 3;
1592                 }
1593         }
1594         // TODO: emit skirt vertices
1595 }
1596
1597 void Mod_Terrain_UpdateSurfacesForViewOrigin(dp_model_t *model)
1598 {
1599         for (y = 0;y < model->terrain.size[1];y += model->terrain.
1600         Mod_Terrain_SurfaceRecurseChunk(model, model->terrain.maxstepsize, x, y);
1601         Mod_Terrain_BuildChunk(model,
1602 }
1603 #endif
1604
1605 static int Mod_LoadQ3Shaders_EnumerateWaveFunc(const char *s)
1606 {
1607         int offset = 0;
1608         if (!strncasecmp(s, "user", 4)) // parse stuff like "user1sin", always user<n>func
1609         {
1610                 offset = bound(0, s[4] - '0', 9);
1611                 offset = (offset + 1) << Q3WAVEFUNC_USER_SHIFT;
1612                 s += 4;
1613                 if(*s)
1614                         ++s;
1615         }
1616         if (!strcasecmp(s, "sin"))             return offset | Q3WAVEFUNC_SIN;
1617         if (!strcasecmp(s, "square"))          return offset | Q3WAVEFUNC_SQUARE;
1618         if (!strcasecmp(s, "triangle"))        return offset | Q3WAVEFUNC_TRIANGLE;
1619         if (!strcasecmp(s, "sawtooth"))        return offset | Q3WAVEFUNC_SAWTOOTH;
1620         if (!strcasecmp(s, "inversesawtooth")) return offset | Q3WAVEFUNC_INVERSESAWTOOTH;
1621         if (!strcasecmp(s, "noise"))           return offset | Q3WAVEFUNC_NOISE;
1622         if (!strcasecmp(s, "none"))            return offset | Q3WAVEFUNC_NONE;
1623         Con_DPrintf("Mod_LoadQ3Shaders: unknown wavefunc %s\n", s);
1624         return offset | Q3WAVEFUNC_NONE;
1625 }
1626
1627 void Mod_FreeQ3Shaders(void)
1628 {
1629         Mem_FreePool(&q3shaders_mem);
1630 }
1631
1632 static void Q3Shader_AddToHash (q3shaderinfo_t* shader)
1633 {
1634         unsigned short hash = CRC_Block_CaseInsensitive ((const unsigned char *)shader->name, strlen (shader->name));
1635         q3shader_hash_entry_t* entry = q3shader_data->hash + (hash % Q3SHADER_HASH_SIZE);
1636         q3shader_hash_entry_t* lastEntry = NULL;
1637         do
1638         {
1639                 if (strcasecmp (entry->shader.name, shader->name) == 0)
1640                 {
1641                         // redeclaration
1642                         if(shader->dpshaderkill)
1643                         {
1644                                 // killed shader is a redeclarion? we can safely ignore it
1645                                 return;
1646                         }
1647                         else if(entry->shader.dpshaderkill)
1648                         {
1649                                 // replace the old shader!
1650                                 // this will skip the entry allocating part
1651                                 // below and just replace the shader
1652                                 break;
1653                         }
1654                         else
1655                         {
1656                                 unsigned char *start, *end, *start2;
1657                                 start = (unsigned char *) (&shader->Q3SHADERINFO_COMPARE_START);
1658                                 end = ((unsigned char *) (&shader->Q3SHADERINFO_COMPARE_END)) + sizeof(shader->Q3SHADERINFO_COMPARE_END);
1659                                 start2 = (unsigned char *) (&entry->shader.Q3SHADERINFO_COMPARE_START);
1660                                 if(memcmp(start, start2, end - start))
1661                                         Con_DPrintf("Shader '%s' already defined, ignoring mismatching redeclaration\n", shader->name);
1662                                 else
1663                                         Con_DPrintf("Shader '%s' already defined\n", shader->name);
1664                                 return;
1665                         }
1666                 }
1667                 lastEntry = entry;
1668                 entry = entry->chain;
1669         }
1670         while (entry != NULL);
1671         if (entry == NULL)
1672         {
1673                 if (lastEntry->shader.name[0] != 0)
1674                 {
1675                         /* Add to chain */
1676                         q3shader_hash_entry_t* newEntry = (q3shader_hash_entry_t*)
1677                           Mem_ExpandableArray_AllocRecord (&q3shader_data->hash_entries);
1678
1679                         while (lastEntry->chain != NULL) lastEntry = lastEntry->chain;
1680                         lastEntry->chain = newEntry;
1681                         newEntry->chain = NULL;
1682                         lastEntry = newEntry;
1683                 }
1684                 /* else: head of chain, in hash entry array */
1685                 entry = lastEntry;
1686         }
1687         memcpy (&entry->shader, shader, sizeof (q3shaderinfo_t));
1688 }
1689
1690 extern cvar_t mod_noshader_default_offsetmapping;
1691 extern cvar_t mod_q3shader_default_offsetmapping;
1692 extern cvar_t mod_q3shader_default_offsetmapping_scale;
1693 extern cvar_t mod_q3shader_default_offsetmapping_bias;
1694 extern cvar_t mod_q3shader_default_polygonoffset;
1695 extern cvar_t mod_q3shader_default_polygonfactor;
1696 extern cvar_t mod_q3shader_force_addalpha;
1697 extern cvar_t mod_q3shader_force_terrain_alphaflag;
1698 void Mod_LoadQ3Shaders(void)
1699 {
1700         int j;
1701         int fileindex;
1702         fssearch_t *search;
1703         char *f;
1704         const char *text;
1705         q3shaderinfo_t shader;
1706         q3shaderinfo_layer_t *layer;
1707         int numparameters;
1708         char parameter[TEXTURE_MAXFRAMES + 4][Q3PATHLENGTH];
1709         char *custsurfaceparmnames[256]; // VorteX: q3map2 has 64 but well, someone will need more
1710         unsigned long custsurfaceflags[256];
1711         int numcustsurfaceflags;
1712         qboolean dpshaderkill;
1713
1714         Mod_FreeQ3Shaders();
1715
1716         q3shaders_mem = Mem_AllocPool("q3shaders", 0, NULL);
1717         q3shader_data = (q3shader_data_t*)Mem_Alloc (q3shaders_mem,
1718                 sizeof (q3shader_data_t));
1719         Mem_ExpandableArray_NewArray (&q3shader_data->hash_entries,
1720                 q3shaders_mem, sizeof (q3shader_hash_entry_t), 256);
1721         Mem_ExpandableArray_NewArray (&q3shader_data->char_ptrs,
1722                 q3shaders_mem, sizeof (char**), 256);
1723
1724         // parse custinfoparms.txt
1725         numcustsurfaceflags = 0;
1726         if ((text = f = (char *)FS_LoadFile("scripts/custinfoparms.txt", tempmempool, false, NULL)) != NULL)
1727         {
1728                 if (!COM_ParseToken_QuakeC(&text, false) || strcasecmp(com_token, "{"))
1729                         Con_DPrintf("scripts/custinfoparms.txt: contentflags section parsing error - expected \"{\", found \"%s\"\n", com_token);
1730                 else
1731                 {
1732                         while (COM_ParseToken_QuakeC(&text, false))
1733                                 if (!strcasecmp(com_token, "}"))
1734                                         break;
1735                         // custom surfaceflags section
1736                         if (!COM_ParseToken_QuakeC(&text, false) || strcasecmp(com_token, "{"))
1737                                 Con_DPrintf("scripts/custinfoparms.txt: surfaceflags section parsing error - expected \"{\", found \"%s\"\n", com_token);
1738                         else
1739                         {
1740                                 while(COM_ParseToken_QuakeC(&text, false))
1741                                 {
1742                                         if (!strcasecmp(com_token, "}"))
1743                                                 break;
1744                                         // register surfaceflag
1745                                         if (numcustsurfaceflags >= 256)
1746                                         {
1747                                                 Con_Printf("scripts/custinfoparms.txt: surfaceflags section parsing error - max 256 surfaceflags exceeded\n");
1748                                                 break;
1749                                         }
1750                                         // name
1751                                         j = (int)strlen(com_token)+1;
1752                                         custsurfaceparmnames[numcustsurfaceflags] = (char *)Mem_Alloc(tempmempool, j);
1753                                         strlcpy(custsurfaceparmnames[numcustsurfaceflags], com_token, j+1);
1754                                         // value
1755                                         if (COM_ParseToken_QuakeC(&text, false))
1756                                                 custsurfaceflags[numcustsurfaceflags] = strtol(com_token, NULL, 0);
1757                                         else
1758                                                 custsurfaceflags[numcustsurfaceflags] = 0;
1759                                         numcustsurfaceflags++;
1760                                 }
1761                         }
1762                 }
1763                 Mem_Free(f);
1764         }
1765
1766         // parse shaders
1767         search = FS_Search("scripts/*.shader", true, false);
1768         if (!search)
1769                 return;
1770         for (fileindex = 0;fileindex < search->numfilenames;fileindex++)
1771         {
1772                 text = f = (char *)FS_LoadFile(search->filenames[fileindex], tempmempool, false, NULL);
1773                 if (!f)
1774                         continue;
1775                 while (COM_ParseToken_QuakeC(&text, false))
1776                 {
1777                         memset (&shader, 0, sizeof(shader));
1778                         shader.name[0] = 0;
1779                         shader.surfaceparms = 0;
1780                         shader.surfaceflags = 0;
1781                         shader.textureflags = 0;
1782                         shader.numlayers = 0;
1783                         shader.lighting = false;
1784                         shader.vertexalpha = false;
1785                         shader.textureblendalpha = false;
1786                         shader.skyboxname[0] = 0;
1787                         shader.deforms[0].deform = Q3DEFORM_NONE;
1788                         shader.dpnortlight = false;
1789                         shader.dpshadow = false;
1790                         shader.dpnoshadow = false;
1791                         shader.dpmeshcollisions = false;
1792                         shader.dpshaderkill = false;
1793                         shader.dpreflectcube[0] = 0;
1794                         shader.reflectmin = 0;
1795                         shader.reflectmax = 1;
1796                         shader.refractfactor = 1;
1797                         Vector4Set(shader.refractcolor4f, 1, 1, 1, 1);
1798                         shader.reflectfactor = 1;
1799                         Vector4Set(shader.reflectcolor4f, 1, 1, 1, 1);
1800                         shader.r_water_wateralpha = 1;
1801                         shader.r_water_waterscroll[0] = 0;
1802                         shader.r_water_waterscroll[1] = 0;
1803                         shader.offsetmapping = (mod_q3shader_default_offsetmapping.value) ? OFFSETMAPPING_DEFAULT : OFFSETMAPPING_OFF;
1804                         shader.offsetscale = mod_q3shader_default_offsetmapping_scale.value;
1805                         shader.offsetbias = mod_q3shader_default_offsetmapping_bias.value;
1806                         shader.biaspolygonoffset = mod_q3shader_default_polygonoffset.value;
1807                         shader.biaspolygonfactor = mod_q3shader_default_polygonfactor.value;
1808                         shader.transparentsort = TRANSPARENTSORT_DISTANCE;
1809                         shader.specularscalemod = 1;
1810                         shader.specularpowermod = 1;
1811                         shader.rtlightambient = 0;
1812                         // WHEN ADDING DEFAULTS HERE, REMEMBER TO PUT DEFAULTS IN ALL LOADERS
1813                         // JUST GREP FOR "specularscalemod = 1".
1814
1815                         strlcpy(shader.name, com_token, sizeof(shader.name));
1816                         if (!COM_ParseToken_QuakeC(&text, false) || strcasecmp(com_token, "{"))
1817                         {
1818                                 Con_DPrintf("%s parsing error - expected \"{\", found \"%s\"\n", search->filenames[fileindex], com_token);
1819                                 break;
1820                         }
1821                         while (COM_ParseToken_QuakeC(&text, false))
1822                         {
1823                                 if (!strcasecmp(com_token, "}"))
1824                                         break;
1825                                 if (!strcasecmp(com_token, "{"))
1826                                 {
1827                                         static q3shaderinfo_layer_t dummy;
1828                                         if (shader.numlayers < Q3SHADER_MAXLAYERS)
1829                                         {
1830                                                 layer = shader.layers + shader.numlayers++;
1831                                         }
1832                                         else
1833                                         {
1834                                                 // parse and process it anyway, just don't store it (so a map $lightmap or such stuff still is found)
1835                                                 memset(&dummy, 0, sizeof(dummy));
1836                                                 layer = &dummy;
1837                                         }
1838                                         layer->rgbgen.rgbgen = Q3RGBGEN_IDENTITY;
1839                                         layer->alphagen.alphagen = Q3ALPHAGEN_IDENTITY;
1840                                         layer->tcgen.tcgen = Q3TCGEN_TEXTURE;
1841                                         layer->blendfunc[0] = GL_ONE;
1842                                         layer->blendfunc[1] = GL_ZERO;
1843                                         while (COM_ParseToken_QuakeC(&text, false))
1844                                         {
1845                                                 if (!strcasecmp(com_token, "}"))
1846                                                         break;
1847                                                 if (!strcasecmp(com_token, "\n"))
1848                                                         continue;
1849                                                 numparameters = 0;
1850                                                 for (j = 0;strcasecmp(com_token, "\n") && strcasecmp(com_token, "}");j++)
1851                                                 {
1852                                                         if (j < TEXTURE_MAXFRAMES + 4)
1853                                                         {
1854                                                                 // remap dp_water to dpwater, dp_reflect to dpreflect, etc.
1855                                                                 if(j == 0 && !strncasecmp(com_token, "dp_", 3))
1856                                                                         dpsnprintf(parameter[j], sizeof(parameter[j]), "dp%s", &com_token[3]);
1857                                                                 else
1858                                                                         strlcpy(parameter[j], com_token, sizeof(parameter[j]));
1859                                                                 numparameters = j + 1;
1860                                                         }
1861                                                         if (!COM_ParseToken_QuakeC(&text, true))
1862                                                                 break;
1863                                                 }
1864                                                 //for (j = numparameters;j < TEXTURE_MAXFRAMES + 4;j++)
1865                                                 //      parameter[j][0] = 0;
1866                                                 if (developer_insane.integer)
1867                                                 {
1868                                                         Con_DPrintf("%s %i: ", shader.name, shader.numlayers - 1);
1869                                                         for (j = 0;j < numparameters;j++)
1870                                                                 Con_DPrintf(" %s", parameter[j]);
1871                                                         Con_DPrint("\n");
1872                                                 }
1873                                                 if (numparameters >= 2 && !strcasecmp(parameter[0], "blendfunc"))
1874                                                 {
1875                                                         if (numparameters == 2)
1876                                                         {
1877                                                                 if (!strcasecmp(parameter[1], "add"))
1878                                                                 {
1879                                                                         layer->blendfunc[0] = GL_ONE;
1880                                                                         layer->blendfunc[1] = GL_ONE;
1881                                                                 }
1882                                                                 else if (!strcasecmp(parameter[1], "addalpha"))
1883                                                                 {
1884                                                                         layer->blendfunc[0] = GL_SRC_ALPHA;
1885                                                                         layer->blendfunc[1] = GL_ONE;
1886                                                                 }
1887                                                                 else if (!strcasecmp(parameter[1], "filter"))
1888                                                                 {
1889                                                                         layer->blendfunc[0] = GL_DST_COLOR;
1890                                                                         layer->blendfunc[1] = GL_ZERO;
1891                                                                 }
1892                                                                 else if (!strcasecmp(parameter[1], "blend"))
1893                                                                 {
1894                                                                         layer->blendfunc[0] = GL_SRC_ALPHA;
1895                                                                         layer->blendfunc[1] = GL_ONE_MINUS_SRC_ALPHA;
1896                                                                 }
1897                                                         }
1898                                                         else if (numparameters == 3)
1899                                                         {
1900                                                                 int k;
1901                                                                 for (k = 0;k < 2;k++)
1902                                                                 {
1903                                                                         if (!strcasecmp(parameter[k+1], "GL_ONE"))
1904                                                                                 layer->blendfunc[k] = GL_ONE;
1905                                                                         else if (!strcasecmp(parameter[k+1], "GL_ZERO"))
1906                                                                                 layer->blendfunc[k] = GL_ZERO;
1907                                                                         else if (!strcasecmp(parameter[k+1], "GL_SRC_COLOR"))
1908                                                                                 layer->blendfunc[k] = GL_SRC_COLOR;
1909                                                                         else if (!strcasecmp(parameter[k+1], "GL_SRC_ALPHA"))
1910                                                                                 layer->blendfunc[k] = GL_SRC_ALPHA;
1911                                                                         else if (!strcasecmp(parameter[k+1], "GL_DST_COLOR"))
1912                                                                                 layer->blendfunc[k] = GL_DST_COLOR;
1913                                                                         else if (!strcasecmp(parameter[k+1], "GL_DST_ALPHA"))
1914                                                                                 layer->blendfunc[k] = GL_DST_ALPHA;
1915                                                                         else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_SRC_COLOR"))
1916                                                                                 layer->blendfunc[k] = GL_ONE_MINUS_SRC_COLOR;
1917                                                                         else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_SRC_ALPHA"))
1918                                                                                 layer->blendfunc[k] = GL_ONE_MINUS_SRC_ALPHA;
1919                                                                         else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_DST_COLOR"))
1920                                                                                 layer->blendfunc[k] = GL_ONE_MINUS_DST_COLOR;
1921                                                                         else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_DST_ALPHA"))
1922                                                                                 layer->blendfunc[k] = GL_ONE_MINUS_DST_ALPHA;
1923                                                                         else
1924                                                                                 layer->blendfunc[k] = GL_ONE; // default in case of parsing error
1925                                                                 }
1926                                                         }
1927                                                 }
1928                                                 if (numparameters >= 2 && !strcasecmp(parameter[0], "alphafunc"))
1929                                                         layer->alphatest = true;
1930                                                 if (numparameters >= 2 && (!strcasecmp(parameter[0], "map") || !strcasecmp(parameter[0], "clampmap")))
1931                                                 {
1932                                                         if (!strcasecmp(parameter[0], "clampmap"))
1933                                                                 layer->clampmap = true;
1934                                                         layer->numframes = 1;
1935                                                         layer->framerate = 1;
1936                                                         layer->texturename = (char**)Mem_ExpandableArray_AllocRecord (
1937                                                                 &q3shader_data->char_ptrs);
1938                                                         layer->texturename[0] = Mem_strdup (q3shaders_mem, parameter[1]);
1939                                                         if (!strcasecmp(parameter[1], "$lightmap"))
1940                                                                 shader.lighting = true;
1941                                                 }
1942                                                 else if (numparameters >= 3 && (!strcasecmp(parameter[0], "animmap") || !strcasecmp(parameter[0], "animclampmap")))
1943                                                 {
1944                                                         int i;
1945                                                         layer->numframes = min(numparameters - 2, TEXTURE_MAXFRAMES);
1946                                                         layer->framerate = atof(parameter[1]);
1947                                                         layer->texturename = (char **) Mem_Alloc (q3shaders_mem, sizeof (char*) * layer->numframes);
1948                                                         for (i = 0;i < layer->numframes;i++)
1949                                                                 layer->texturename[i] = Mem_strdup (q3shaders_mem, parameter[i + 2]);
1950                                                 }
1951                                                 else if (numparameters >= 2 && !strcasecmp(parameter[0], "rgbgen"))
1952                                                 {
1953                                                         int i;
1954                                                         for (i = 0;i < numparameters - 2 && i < Q3RGBGEN_MAXPARMS;i++)
1955                                                                 layer->rgbgen.parms[i] = atof(parameter[i+2]);
1956                                                              if (!strcasecmp(parameter[1], "identity"))         layer->rgbgen.rgbgen = Q3RGBGEN_IDENTITY;
1957                                                         else if (!strcasecmp(parameter[1], "const"))            layer->rgbgen.rgbgen = Q3RGBGEN_CONST;
1958                                                         else if (!strcasecmp(parameter[1], "entity"))           layer->rgbgen.rgbgen = Q3RGBGEN_ENTITY;
1959                                                         else if (!strcasecmp(parameter[1], "exactvertex"))      layer->rgbgen.rgbgen = Q3RGBGEN_EXACTVERTEX;
1960                                                         else if (!strcasecmp(parameter[1], "identitylighting")) layer->rgbgen.rgbgen = Q3RGBGEN_IDENTITYLIGHTING;
1961                                                         else if (!strcasecmp(parameter[1], "lightingdiffuse"))  layer->rgbgen.rgbgen = Q3RGBGEN_LIGHTINGDIFFUSE;
1962                                                         else if (!strcasecmp(parameter[1], "oneminusentity"))   layer->rgbgen.rgbgen = Q3RGBGEN_ONEMINUSENTITY;
1963                                                         else if (!strcasecmp(parameter[1], "oneminusvertex"))   layer->rgbgen.rgbgen = Q3RGBGEN_ONEMINUSVERTEX;
1964                                                         else if (!strcasecmp(parameter[1], "vertex"))           layer->rgbgen.rgbgen = Q3RGBGEN_VERTEX;
1965                                                         else if (!strcasecmp(parameter[1], "wave"))
1966                                                         {
1967                                                                 layer->rgbgen.rgbgen = Q3RGBGEN_WAVE;
1968                                                                 layer->rgbgen.wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[2]);
1969                                                                 for (i = 0;i < numparameters - 3 && i < Q3WAVEPARMS;i++)
1970                                                                         layer->rgbgen.waveparms[i] = atof(parameter[i+3]);
1971                                                         }
1972                                                         else Con_DPrintf("%s parsing warning: unknown rgbgen %s\n", search->filenames[fileindex], parameter[1]);
1973                                                 }
1974                                                 else if (numparameters >= 2 && !strcasecmp(parameter[0], "alphagen"))
1975                                                 {
1976                                                         int i;
1977                                                         for (i = 0;i < numparameters - 2 && i < Q3ALPHAGEN_MAXPARMS;i++)
1978                                                                 layer->alphagen.parms[i] = atof(parameter[i+2]);
1979                                                              if (!strcasecmp(parameter[1], "identity"))         layer->alphagen.alphagen = Q3ALPHAGEN_IDENTITY;
1980                                                         else if (!strcasecmp(parameter[1], "const"))            layer->alphagen.alphagen = Q3ALPHAGEN_CONST;
1981                                                         else if (!strcasecmp(parameter[1], "entity"))           layer->alphagen.alphagen = Q3ALPHAGEN_ENTITY;
1982                                                         else if (!strcasecmp(parameter[1], "lightingspecular")) layer->alphagen.alphagen = Q3ALPHAGEN_LIGHTINGSPECULAR;
1983                                                         else if (!strcasecmp(parameter[1], "oneminusentity"))   layer->alphagen.alphagen = Q3ALPHAGEN_ONEMINUSENTITY;
1984                                                         else if (!strcasecmp(parameter[1], "oneminusvertex"))   layer->alphagen.alphagen = Q3ALPHAGEN_ONEMINUSVERTEX;
1985                                                         else if (!strcasecmp(parameter[1], "portal"))           layer->alphagen.alphagen = Q3ALPHAGEN_PORTAL;
1986                                                         else if (!strcasecmp(parameter[1], "vertex"))           layer->alphagen.alphagen = Q3ALPHAGEN_VERTEX;
1987                                                         else if (!strcasecmp(parameter[1], "wave"))
1988                                                         {
1989                                                                 layer->alphagen.alphagen = Q3ALPHAGEN_WAVE;
1990                                                                 layer->alphagen.wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[2]);
1991                                                                 for (i = 0;i < numparameters - 3 && i < Q3WAVEPARMS;i++)
1992                                                                         layer->alphagen.waveparms[i] = atof(parameter[i+3]);
1993                                                         }
1994                                                         else Con_DPrintf("%s parsing warning: unknown alphagen %s\n", search->filenames[fileindex], parameter[1]);
1995                                                 }
1996                                                 else if (numparameters >= 2 && (!strcasecmp(parameter[0], "texgen") || !strcasecmp(parameter[0], "tcgen")))
1997                                                 {
1998                                                         int i;
1999                                                         // observed values: tcgen environment
2000                                                         // no other values have been observed in real shaders
2001                                                         for (i = 0;i < numparameters - 2 && i < Q3TCGEN_MAXPARMS;i++)
2002                                                                 layer->tcgen.parms[i] = atof(parameter[i+2]);
2003                                                              if (!strcasecmp(parameter[1], "base"))        layer->tcgen.tcgen = Q3TCGEN_TEXTURE;
2004                                                         else if (!strcasecmp(parameter[1], "texture"))     layer->tcgen.tcgen = Q3TCGEN_TEXTURE;
2005                                                         else if (!strcasecmp(parameter[1], "environment")) layer->tcgen.tcgen = Q3TCGEN_ENVIRONMENT;
2006                                                         else if (!strcasecmp(parameter[1], "lightmap"))    layer->tcgen.tcgen = Q3TCGEN_LIGHTMAP;
2007                                                         else if (!strcasecmp(parameter[1], "vector"))      layer->tcgen.tcgen = Q3TCGEN_VECTOR;
2008                                                         else Con_DPrintf("%s parsing warning: unknown tcgen mode %s\n", search->filenames[fileindex], parameter[1]);
2009                                                 }
2010                                                 else if (numparameters >= 2 && !strcasecmp(parameter[0], "tcmod"))
2011                                                 {
2012                                                         int i, tcmodindex;
2013                                                         // observed values:
2014                                                         // tcmod rotate #
2015                                                         // tcmod scale # #
2016                                                         // tcmod scroll # #
2017                                                         // tcmod stretch sin # # # #
2018                                                         // tcmod stretch triangle # # # #
2019                                                         // tcmod transform # # # # # #
2020                                                         // tcmod turb # # # #
2021                                                         // tcmod turb sin # # # #  (this is bogus)
2022                                                         // no other values have been observed in real shaders
2023                                                         for (tcmodindex = 0;tcmodindex < Q3MAXTCMODS;tcmodindex++)
2024                                                                 if (!layer->tcmods[tcmodindex].tcmod)
2025                                                                         break;
2026                                                         if (tcmodindex < Q3MAXTCMODS)
2027                                                         {
2028                                                                 for (i = 0;i < numparameters - 2 && i < Q3TCMOD_MAXPARMS;i++)
2029                                                                         layer->tcmods[tcmodindex].parms[i] = atof(parameter[i+2]);
2030                                                                          if (!strcasecmp(parameter[1], "entitytranslate")) layer->tcmods[tcmodindex].tcmod = Q3TCMOD_ENTITYTRANSLATE;
2031                                                                 else if (!strcasecmp(parameter[1], "rotate"))          layer->tcmods[tcmodindex].tcmod = Q3TCMOD_ROTATE;
2032                                                                 else if (!strcasecmp(parameter[1], "scale"))           layer->tcmods[tcmodindex].tcmod = Q3TCMOD_SCALE;
2033                                                                 else if (!strcasecmp(parameter[1], "scroll"))          layer->tcmods[tcmodindex].tcmod = Q3TCMOD_SCROLL;
2034                                                                 else if (!strcasecmp(parameter[1], "page"))            layer->tcmods[tcmodindex].tcmod = Q3TCMOD_PAGE;
2035                                                                 else if (!strcasecmp(parameter[1], "stretch"))
2036                                                                 {
2037                                                                         layer->tcmods[tcmodindex].tcmod = Q3TCMOD_STRETCH;
2038                                                                         layer->tcmods[tcmodindex].wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[2]);
2039                                                                         for (i = 0;i < numparameters - 3 && i < Q3WAVEPARMS;i++)
2040                                                                                 layer->tcmods[tcmodindex].waveparms[i] = atof(parameter[i+3]);
2041                                                                 }
2042                                                                 else if (!strcasecmp(parameter[1], "transform"))       layer->tcmods[tcmodindex].tcmod = Q3TCMOD_TRANSFORM;
2043                                                                 else if (!strcasecmp(parameter[1], "turb"))            layer->tcmods[tcmodindex].tcmod = Q3TCMOD_TURBULENT;
2044                                                                 else Con_DPrintf("%s parsing warning: unknown tcmod mode %s\n", search->filenames[fileindex], parameter[1]);
2045                                                         }
2046                                                         else
2047                                                                 Con_DPrintf("%s parsing warning: too many tcmods on one layer\n", search->filenames[fileindex]);
2048                                                 }
2049                                                 // break out a level if it was a closing brace (not using the character here to not confuse vim)
2050                                                 if (!strcasecmp(com_token, "}"))
2051                                                         break;
2052                                         }
2053                                         if (layer->rgbgen.rgbgen == Q3RGBGEN_LIGHTINGDIFFUSE || layer->rgbgen.rgbgen == Q3RGBGEN_VERTEX)
2054                                                 shader.lighting = true;
2055                                         if (layer->alphagen.alphagen == Q3ALPHAGEN_VERTEX)
2056                                         {
2057                                                 if (layer == shader.layers + 0)
2058                                                 {
2059                                                         // vertex controlled transparency
2060                                                         shader.vertexalpha = true;
2061                                                 }
2062                                                 else
2063                                                 {
2064                                                         // multilayer terrain shader or similar
2065                                                         shader.textureblendalpha = true;
2066                                                         if (mod_q3shader_force_terrain_alphaflag.integer)
2067                                                                 shader.layers[0].dptexflags |= TEXF_ALPHA;
2068                                                 }
2069                                         }
2070
2071                                         if(mod_q3shader_force_addalpha.integer)
2072                                         {
2073                                                 // for a long while, DP treated GL_ONE GL_ONE as GL_SRC_ALPHA GL_ONE
2074                                                 // this cvar brings back this behaviour
2075                                                 if(layer->blendfunc[0] == GL_ONE && layer->blendfunc[1] == GL_ONE)
2076                                                         layer->blendfunc[0] = GL_SRC_ALPHA;
2077                                         }
2078
2079                                         layer->dptexflags = 0;
2080                                         if (layer->alphatest)
2081                                                 layer->dptexflags |= TEXF_ALPHA;
2082                                         switch(layer->blendfunc[0])
2083                                         {
2084                                                 case GL_SRC_ALPHA:
2085                                                 case GL_ONE_MINUS_SRC_ALPHA:
2086                                                         layer->dptexflags |= TEXF_ALPHA;
2087                                                         break;
2088                                         }
2089                                         switch(layer->blendfunc[1])
2090                                         {
2091                                                 case GL_SRC_ALPHA:
2092                                                 case GL_ONE_MINUS_SRC_ALPHA:
2093                                                         layer->dptexflags |= TEXF_ALPHA;
2094                                                         break;
2095                                         }
2096                                         if (!(shader.surfaceparms & Q3SURFACEPARM_NOMIPMAPS))
2097                                                 layer->dptexflags |= TEXF_MIPMAP;
2098                                         if (!(shader.textureflags & Q3TEXTUREFLAG_NOPICMIP))
2099                                                 layer->dptexflags |= TEXF_PICMIP | TEXF_COMPRESS;
2100                                         if (layer->clampmap)
2101                                                 layer->dptexflags |= TEXF_CLAMP;
2102                                         continue;
2103                                 }
2104                                 numparameters = 0;
2105                                 for (j = 0;strcasecmp(com_token, "\n") && strcasecmp(com_token, "}");j++)
2106                                 {
2107                                         if (j < TEXTURE_MAXFRAMES + 4)
2108                                         {
2109                                                 // remap dp_water to dpwater, dp_reflect to dpreflect, etc.
2110                                                 if(j == 0 && !strncasecmp(com_token, "dp_", 3))
2111                                                         dpsnprintf(parameter[j], sizeof(parameter[j]), "dp%s", &com_token[3]);
2112                                                 else
2113                                                         strlcpy(parameter[j], com_token, sizeof(parameter[j]));
2114                                                 numparameters = j + 1;
2115                                         }
2116                                         if (!COM_ParseToken_QuakeC(&text, true))
2117                                                 break;
2118                                 }
2119                                 //for (j = numparameters;j < TEXTURE_MAXFRAMES + 4;j++)
2120                                 //      parameter[j][0] = 0;
2121                                 if (fileindex == 0 && !strcasecmp(com_token, "}"))
2122                                         break;
2123                                 if (developer_insane.integer)
2124                                 {
2125                                         Con_DPrintf("%s: ", shader.name);
2126                                         for (j = 0;j < numparameters;j++)
2127                                                 Con_DPrintf(" %s", parameter[j]);
2128                                         Con_DPrint("\n");
2129                                 }
2130                                 if (numparameters < 1)
2131                                         continue;
2132                                 if (!strcasecmp(parameter[0], "surfaceparm") && numparameters >= 2)
2133                                 {
2134                                         if (!strcasecmp(parameter[1], "alphashadow"))
2135                                                 shader.surfaceparms |= Q3SURFACEPARM_ALPHASHADOW;
2136                                         else if (!strcasecmp(parameter[1], "areaportal"))
2137                                                 shader.surfaceparms |= Q3SURFACEPARM_AREAPORTAL;
2138                                         else if (!strcasecmp(parameter[1], "botclip"))
2139                                                 shader.surfaceparms |= Q3SURFACEPARM_BOTCLIP;
2140                                         else if (!strcasecmp(parameter[1], "clusterportal"))
2141                                                 shader.surfaceparms |= Q3SURFACEPARM_CLUSTERPORTAL;
2142                                         else if (!strcasecmp(parameter[1], "detail"))
2143                                                 shader.surfaceparms |= Q3SURFACEPARM_DETAIL;
2144                                         else if (!strcasecmp(parameter[1], "donotenter"))
2145                                                 shader.surfaceparms |= Q3SURFACEPARM_DONOTENTER;
2146                                         else if (!strcasecmp(parameter[1], "dust"))
2147                                                 shader.surfaceparms |= Q3SURFACEPARM_DUST;
2148                                         else if (!strcasecmp(parameter[1], "hint"))
2149                                                 shader.surfaceparms |= Q3SURFACEPARM_HINT;
2150                                         else if (!strcasecmp(parameter[1], "fog"))
2151                                                 shader.surfaceparms |= Q3SURFACEPARM_FOG;
2152                                         else if (!strcasecmp(parameter[1], "lava"))
2153                                                 shader.surfaceparms |= Q3SURFACEPARM_LAVA;
2154                                         else if (!strcasecmp(parameter[1], "lightfilter"))
2155                                                 shader.surfaceparms |= Q3SURFACEPARM_LIGHTFILTER;
2156                                         else if (!strcasecmp(parameter[1], "lightgrid"))
2157                                                 shader.surfaceparms |= Q3SURFACEPARM_LIGHTGRID;
2158                                         else if (!strcasecmp(parameter[1], "metalsteps"))
2159                                                 shader.surfaceparms |= Q3SURFACEPARM_METALSTEPS;
2160                                         else if (!strcasecmp(parameter[1], "nodamage"))
2161                                                 shader.surfaceparms |= Q3SURFACEPARM_NODAMAGE;
2162                                         else if (!strcasecmp(parameter[1], "nodlight"))
2163                                                 shader.surfaceparms |= Q3SURFACEPARM_NODLIGHT;
2164                                         else if (!strcasecmp(parameter[1], "nodraw"))
2165                                                 shader.surfaceparms |= Q3SURFACEPARM_NODRAW;
2166                                         else if (!strcasecmp(parameter[1], "nodrop"))
2167                                                 shader.surfaceparms |= Q3SURFACEPARM_NODROP;
2168                                         else if (!strcasecmp(parameter[1], "noimpact"))
2169                                                 shader.surfaceparms |= Q3SURFACEPARM_NOIMPACT;
2170                                         else if (!strcasecmp(parameter[1], "nolightmap"))
2171                                                 shader.surfaceparms |= Q3SURFACEPARM_NOLIGHTMAP;
2172                                         else if (!strcasecmp(parameter[1], "nomarks"))
2173                                                 shader.surfaceparms |= Q3SURFACEPARM_NOMARKS;
2174                                         else if (!strcasecmp(parameter[1], "nomipmaps"))
2175                                                 shader.surfaceparms |= Q3SURFACEPARM_NOMIPMAPS;
2176                                         else if (!strcasecmp(parameter[1], "nonsolid"))
2177                                                 shader.surfaceparms |= Q3SURFACEPARM_NONSOLID;
2178                                         else if (!strcasecmp(parameter[1], "origin"))
2179                                                 shader.surfaceparms |= Q3SURFACEPARM_ORIGIN;
2180                                         else if (!strcasecmp(parameter[1], "playerclip"))
2181                                                 shader.surfaceparms |= Q3SURFACEPARM_PLAYERCLIP;
2182                                         else if (!strcasecmp(parameter[1], "sky"))
2183                                                 shader.surfaceparms |= Q3SURFACEPARM_SKY;
2184                                         else if (!strcasecmp(parameter[1], "slick"))
2185                                                 shader.surfaceparms |= Q3SURFACEPARM_SLICK;
2186                                         else if (!strcasecmp(parameter[1], "slime"))
2187                                                 shader.surfaceparms |= Q3SURFACEPARM_SLIME;
2188                                         else if (!strcasecmp(parameter[1], "structural"))
2189                                                 shader.surfaceparms |= Q3SURFACEPARM_STRUCTURAL;
2190                                         else if (!strcasecmp(parameter[1], "trans"))
2191                                                 shader.surfaceparms |= Q3SURFACEPARM_TRANS;
2192                                         else if (!strcasecmp(parameter[1], "water"))
2193                                                 shader.surfaceparms |= Q3SURFACEPARM_WATER;
2194                                         else if (!strcasecmp(parameter[1], "pointlight"))
2195                                                 shader.surfaceparms |= Q3SURFACEPARM_POINTLIGHT;
2196                                         else if (!strcasecmp(parameter[1], "antiportal"))
2197                                                 shader.surfaceparms |= Q3SURFACEPARM_ANTIPORTAL;
2198                                         else if (!strcasecmp(parameter[1], "skip"))
2199                                                 ; // shader.surfaceparms |= Q3SURFACEPARM_SKIP; FIXME we don't have enough #defines for this any more, and the engine doesn't need this one anyway
2200                                         else
2201                                         {
2202                                                 // try custom surfaceparms
2203                                                 for (j = 0; j < numcustsurfaceflags; j++)
2204                                                 {
2205                                                         if (!strcasecmp(custsurfaceparmnames[j], parameter[1]))
2206                                                         {
2207                                                                 shader.surfaceflags |= custsurfaceflags[j];
2208                                                                 break;
2209                                                         }
2210                                                 }
2211                                                 // failed all
2212                                                 if (j == numcustsurfaceflags)
2213                                                         Con_DPrintf("%s parsing warning: unknown surfaceparm \"%s\"\n", search->filenames[fileindex], parameter[1]);
2214                                         }
2215                                 }
2216                                 else if (!strcasecmp(parameter[0], "dpshadow"))
2217                                         shader.dpshadow = true;
2218                                 else if (!strcasecmp(parameter[0], "dpnoshadow"))
2219                                         shader.dpnoshadow = true;
2220                                 else if (!strcasecmp(parameter[0], "dpnortlight"))
2221                                         shader.dpnortlight = true;
2222                                 else if (!strcasecmp(parameter[0], "dpreflectcube"))
2223                                         strlcpy(shader.dpreflectcube, parameter[1], sizeof(shader.dpreflectcube));
2224                                 else if (!strcasecmp(parameter[0], "dpmeshcollisions"))
2225                                         shader.dpmeshcollisions = true;
2226                                 // this sets dpshaderkill to true if dpshaderkillifcvarzero was used, and to false if dpnoshaderkillifcvarzero was used
2227                                 else if (((dpshaderkill = !strcasecmp(parameter[0], "dpshaderkillifcvarzero")) || !strcasecmp(parameter[0], "dpnoshaderkillifcvarzero")) && numparameters >= 2)
2228                                 {
2229                                         if (Cvar_VariableValue(parameter[1]) == 0.0f)
2230                                                 shader.dpshaderkill = dpshaderkill;
2231                                 }
2232                                 // this sets dpshaderkill to true if dpshaderkillifcvar was used, and to false if dpnoshaderkillifcvar was used
2233                                 else if (((dpshaderkill = !strcasecmp(parameter[0], "dpshaderkillifcvar")) || !strcasecmp(parameter[0], "dpnoshaderkillifcvar")) && numparameters >= 2)
2234                                 {
2235                                         const char *op = NULL;
2236                                         if (numparameters >= 3)
2237                                                 op = parameter[2];
2238                                         if(!op)
2239                                         {
2240                                                 if (Cvar_VariableValue(parameter[1]) != 0.0f)
2241                                                         shader.dpshaderkill = dpshaderkill;
2242                                         }
2243                                         else if (numparameters >= 4 && !strcmp(op, "=="))
2244                                         {
2245                                                 if (Cvar_VariableValue(parameter[1]) == atof(parameter[3]))
2246                                                         shader.dpshaderkill = dpshaderkill;
2247                                         }
2248                                         else if (numparameters >= 4 && !strcmp(op, "!="))
2249                                         {
2250                                                 if (Cvar_VariableValue(parameter[1]) != atof(parameter[3]))
2251                                                         shader.dpshaderkill = dpshaderkill;
2252                                         }
2253                                         else if (numparameters >= 4 && !strcmp(op, ">"))
2254                                         {
2255                                                 if (Cvar_VariableValue(parameter[1]) > atof(parameter[3]))
2256                                                         shader.dpshaderkill = dpshaderkill;
2257                                         }
2258                                         else if (numparameters >= 4 && !strcmp(op, "<"))
2259                                         {
2260                                                 if (Cvar_VariableValue(parameter[1]) < atof(parameter[3]))
2261                                                         shader.dpshaderkill = dpshaderkill;
2262                                         }
2263                                         else if (numparameters >= 4 && !strcmp(op, ">="))
2264                                         {
2265                                                 if (Cvar_VariableValue(parameter[1]) >= atof(parameter[3]))
2266                                                         shader.dpshaderkill = dpshaderkill;
2267                                         }
2268                                         else if (numparameters >= 4 && !strcmp(op, "<="))
2269                                         {
2270                                                 if (Cvar_VariableValue(parameter[1]) <= atof(parameter[3]))
2271                                                         shader.dpshaderkill = dpshaderkill;
2272                                         }
2273                                         else
2274                                         {
2275                                                 Con_DPrintf("%s parsing warning: unknown dpshaderkillifcvar op \"%s\", or not enough arguments\n", search->filenames[fileindex], op);
2276                                         }
2277                                 }
2278                                 else if (!strcasecmp(parameter[0], "sky") && numparameters >= 2)
2279                                 {
2280                                         // some q3 skies don't have the sky parm set
2281                                         shader.surfaceparms |= Q3SURFACEPARM_SKY;
2282                                         strlcpy(shader.skyboxname, parameter[1], sizeof(shader.skyboxname));
2283                                 }
2284                                 else if (!strcasecmp(parameter[0], "skyparms") && numparameters >= 2)
2285                                 {
2286                                         // some q3 skies don't have the sky parm set
2287                                         shader.surfaceparms |= Q3SURFACEPARM_SKY;
2288                                         if (!atoi(parameter[1]) && strcasecmp(parameter[1], "-"))
2289                                                 strlcpy(shader.skyboxname, parameter[1], sizeof(shader.skyboxname));
2290                                 }
2291                                 else if (!strcasecmp(parameter[0], "cull") && numparameters >= 2)
2292                                 {
2293                                         if (!strcasecmp(parameter[1], "disable") || !strcasecmp(parameter[1], "none") || !strcasecmp(parameter[1], "twosided"))
2294                                                 shader.textureflags |= Q3TEXTUREFLAG_TWOSIDED;
2295                                 }
2296                                 else if (!strcasecmp(parameter[0], "nomipmaps"))
2297                                         shader.surfaceparms |= Q3SURFACEPARM_NOMIPMAPS;
2298                                 else if (!strcasecmp(parameter[0], "nopicmip"))
2299                                         shader.textureflags |= Q3TEXTUREFLAG_NOPICMIP;
2300                                 else if (!strcasecmp(parameter[0], "polygonoffset"))
2301                                         shader.textureflags |= Q3TEXTUREFLAG_POLYGONOFFSET;
2302                                 else if (!strcasecmp(parameter[0], "dppolygonoffset"))
2303                                 {
2304                                         shader.textureflags |= Q3TEXTUREFLAG_POLYGONOFFSET;
2305                                         if(numparameters >= 2)
2306                                         {
2307                                                 shader.biaspolygonfactor = atof(parameter[1]);
2308                                                 if(numparameters >= 3)
2309                                                         shader.biaspolygonoffset = atof(parameter[2]);
2310                                                 else
2311                                                         shader.biaspolygonoffset = 0;
2312                                         }
2313                                 }
2314                                 else if (!strcasecmp(parameter[0], "dptransparentsort") && numparameters >= 2)
2315                                 {
2316                                         shader.textureflags |= Q3TEXTUREFLAG_TRANSPARENTSORT;
2317                                         if (!strcasecmp(parameter[1], "sky"))
2318                                                 shader.transparentsort = TRANSPARENTSORT_SKY;
2319                                         else if (!strcasecmp(parameter[1], "distance"))
2320                                                 shader.transparentsort = TRANSPARENTSORT_DISTANCE;
2321                                         else if (!strcasecmp(parameter[1], "hud"))
2322                                                 shader.transparentsort = TRANSPARENTSORT_HUD;
2323                                         else
2324                                                 Con_DPrintf("%s parsing warning: unknown dptransparentsort category \"%s\", or not enough arguments\n", search->filenames[fileindex], parameter[1]);
2325                                 }
2326                                 else if (!strcasecmp(parameter[0], "dprefract") && numparameters >= 5)
2327                                 {
2328                                         shader.textureflags |= Q3TEXTUREFLAG_REFRACTION;
2329                                         shader.refractfactor = atof(parameter[1]);
2330                                         Vector4Set(shader.refractcolor4f, atof(parameter[2]), atof(parameter[3]), atof(parameter[4]), 1);
2331                                 }
2332                                 else if (!strcasecmp(parameter[0], "dpreflect") && numparameters >= 6)
2333                                 {
2334                                         shader.textureflags |= Q3TEXTUREFLAG_REFLECTION;
2335                                         shader.reflectfactor = atof(parameter[1]);
2336                                         Vector4Set(shader.reflectcolor4f, atof(parameter[2]), atof(parameter[3]), atof(parameter[4]), atof(parameter[5]));
2337                                 }
2338                                 else if (!strcasecmp(parameter[0], "dpcamera"))
2339                                 {
2340                                         shader.textureflags |= Q3TEXTUREFLAG_CAMERA;
2341                                 }
2342                                 else if (!strcasecmp(parameter[0], "dpwater") && numparameters >= 12)
2343                                 {
2344                                         shader.textureflags |= Q3TEXTUREFLAG_WATERSHADER;
2345                                         shader.reflectmin = atof(parameter[1]);
2346                                         shader.reflectmax = atof(parameter[2]);
2347                                         shader.refractfactor = atof(parameter[3]);
2348                                         shader.reflectfactor = atof(parameter[4]);
2349                                         Vector4Set(shader.refractcolor4f, atof(parameter[5]), atof(parameter[6]), atof(parameter[7]), 1);
2350                                         Vector4Set(shader.reflectcolor4f, atof(parameter[8]), atof(parameter[9]), atof(parameter[10]), 1);
2351                                         shader.r_water_wateralpha = atof(parameter[11]);
2352                                 }
2353                                 else if (!strcasecmp(parameter[0], "dpwaterscroll") && numparameters >= 3)
2354                                 {
2355                                         shader.r_water_waterscroll[0] = 1/atof(parameter[1]);
2356                                         shader.r_water_waterscroll[1] = 1/atof(parameter[2]);
2357                                 }
2358                                 else if (!strcasecmp(parameter[0], "dpglossintensitymod") && numparameters >= 2)
2359                                 {
2360                                         shader.specularscalemod = atof(parameter[1]);
2361                                 }
2362                                 else if (!strcasecmp(parameter[0], "dpglossexponentmod") && numparameters >= 2)
2363                                 {
2364                                         shader.specularpowermod = atof(parameter[1]);
2365                                 }
2366                                 else if (!strcasecmp(parameter[0], "dprtlightambient") && numparameters >= 2)
2367                                 {
2368                                         shader.rtlightambient = atof(parameter[1]);
2369                                 }
2370                                 else if (!strcasecmp(parameter[0], "dpoffsetmapping") && numparameters >= 2)
2371                                 {
2372                                         if (!strcasecmp(parameter[1], "disable") || !strcasecmp(parameter[1], "none") || !strcasecmp(parameter[1], "off"))
2373                                                 shader.offsetmapping = OFFSETMAPPING_OFF;
2374                                         else if (!strcasecmp(parameter[1], "default") || !strcasecmp(parameter[1], "normal"))
2375                                                 shader.offsetmapping = OFFSETMAPPING_DEFAULT;
2376                                         else if (!strcasecmp(parameter[1], "linear"))
2377                                                 shader.offsetmapping = OFFSETMAPPING_LINEAR;
2378                                         else if (!strcasecmp(parameter[1], "relief"))
2379                                                 shader.offsetmapping = OFFSETMAPPING_RELIEF;
2380                                         if (numparameters >= 3)
2381                                                 shader.offsetscale = atof(parameter[2]);
2382                                         if (numparameters >= 5)
2383                                         {
2384                                                 if(!strcasecmp(parameter[3], "bias"))
2385                                                         shader.offsetbias = atof(parameter[4]);
2386                                                 else if(!strcasecmp(parameter[3], "match"))
2387                                                         shader.offsetbias = 1.0f - atof(parameter[4]);
2388                                                 else if(!strcasecmp(parameter[3], "match8"))
2389                                                         shader.offsetbias = 1.0f - atof(parameter[4]) / 255.0f;
2390                                                 else if(!strcasecmp(parameter[3], "match16"))
2391                                                         shader.offsetbias = 1.0f - atof(parameter[4]) / 65535.0f;
2392                                         }
2393                                 }
2394                                 else if (!strcasecmp(parameter[0], "deformvertexes") && numparameters >= 2)
2395                                 {
2396                                         int i, deformindex;
2397                                         for (deformindex = 0;deformindex < Q3MAXDEFORMS;deformindex++)
2398                                                 if (!shader.deforms[deformindex].deform)
2399                                                         break;
2400                                         if (deformindex < Q3MAXDEFORMS)
2401                                         {
2402                                                 for (i = 0;i < numparameters - 2 && i < Q3DEFORM_MAXPARMS;i++)
2403                                                         shader.deforms[deformindex].parms[i] = atof(parameter[i+2]);
2404                                                      if (!strcasecmp(parameter[1], "projectionshadow")) shader.deforms[deformindex].deform = Q3DEFORM_PROJECTIONSHADOW;
2405                                                 else if (!strcasecmp(parameter[1], "autosprite"      )) shader.deforms[deformindex].deform = Q3DEFORM_AUTOSPRITE;
2406                                                 else if (!strcasecmp(parameter[1], "autosprite2"     )) shader.deforms[deformindex].deform = Q3DEFORM_AUTOSPRITE2;
2407                                                 else if (!strcasecmp(parameter[1], "text0"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT0;
2408                                                 else if (!strcasecmp(parameter[1], "text1"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT1;
2409                                                 else if (!strcasecmp(parameter[1], "text2"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT2;
2410                                                 else if (!strcasecmp(parameter[1], "text3"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT3;
2411                                                 else if (!strcasecmp(parameter[1], "text4"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT4;
2412                                                 else if (!strcasecmp(parameter[1], "text5"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT5;
2413                                                 else if (!strcasecmp(parameter[1], "text6"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT6;
2414                                                 else if (!strcasecmp(parameter[1], "text7"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT7;
2415                                                 else if (!strcasecmp(parameter[1], "bulge"           )) shader.deforms[deformindex].deform = Q3DEFORM_BULGE;
2416                                                 else if (!strcasecmp(parameter[1], "normal"          )) shader.deforms[deformindex].deform = Q3DEFORM_NORMAL;
2417                                                 else if (!strcasecmp(parameter[1], "wave"            ))
2418                                                 {
2419                                                         shader.deforms[deformindex].deform = Q3DEFORM_WAVE;
2420                                                         shader.deforms[deformindex].wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[3]);
2421                                                         for (i = 0;i < numparameters - 4 && i < Q3WAVEPARMS;i++)
2422                                                                 shader.deforms[deformindex].waveparms[i] = atof(parameter[i+4]);
2423                                                 }
2424                                                 else if (!strcasecmp(parameter[1], "move"            ))
2425                                                 {
2426                                                         shader.deforms[deformindex].deform = Q3DEFORM_MOVE;
2427                                                         shader.deforms[deformindex].wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[5]);
2428                                                         for (i = 0;i < numparameters - 6 && i < Q3WAVEPARMS;i++)
2429                                                                 shader.deforms[deformindex].waveparms[i] = atof(parameter[i+6]);
2430                                                 }
2431                                         }
2432                                 }
2433                         }
2434                         // hide this shader if a cvar said it should be killed
2435                         if (shader.dpshaderkill)
2436                                 shader.numlayers = 0;
2437                         // fix up multiple reflection types
2438                         if(shader.textureflags & Q3TEXTUREFLAG_WATERSHADER)
2439                                 shader.textureflags &= ~(Q3TEXTUREFLAG_REFRACTION | Q3TEXTUREFLAG_REFLECTION | Q3TEXTUREFLAG_CAMERA);
2440
2441                         Q3Shader_AddToHash (&shader);
2442                 }
2443                 Mem_Free(f);
2444         }
2445         FS_FreeSearch(search);
2446         // free custinfoparm values
2447         for (j = 0; j < numcustsurfaceflags; j++)
2448                 Mem_Free(custsurfaceparmnames[j]);
2449 }
2450
2451 q3shaderinfo_t *Mod_LookupQ3Shader(const char *name)
2452 {
2453         unsigned short hash;
2454         q3shader_hash_entry_t* entry;
2455         if (!q3shaders_mem)
2456                 Mod_LoadQ3Shaders();
2457         hash = CRC_Block_CaseInsensitive ((const unsigned char *)name, strlen (name));
2458         entry = q3shader_data->hash + (hash % Q3SHADER_HASH_SIZE);
2459         while (entry != NULL)
2460         {
2461                 if (strcasecmp (entry->shader.name, name) == 0)
2462                         return &entry->shader;
2463                 entry = entry->chain;
2464         }
2465         return NULL;
2466 }
2467
2468 texture_shaderpass_t *Mod_CreateShaderPass(mempool_t *mempool, skinframe_t *skinframe)
2469 {
2470         texture_shaderpass_t *shaderpass = (texture_shaderpass_t *)Mem_Alloc(mempool, sizeof(*shaderpass));
2471         shaderpass->framerate = 0.0f;
2472         shaderpass->numframes = 1;
2473         shaderpass->blendfunc[0] = GL_ONE;
2474         shaderpass->blendfunc[1] = GL_ZERO;
2475         shaderpass->rgbgen.rgbgen = Q3RGBGEN_IDENTITY;
2476         shaderpass->alphagen.alphagen = Q3ALPHAGEN_IDENTITY;
2477         shaderpass->alphatest = false;
2478         shaderpass->tcgen.tcgen = Q3TCGEN_TEXTURE;
2479         shaderpass->skinframes[0] = skinframe;
2480         return shaderpass;
2481 }
2482
2483 texture_shaderpass_t *Mod_CreateShaderPassFromQ3ShaderLayer(mempool_t *mempool, const char *modelname, q3shaderinfo_layer_t *layer, int layerindex, int texflags, const char *texturename)
2484 {
2485         int j;
2486         texture_shaderpass_t *shaderpass = (texture_shaderpass_t *)Mem_Alloc(mempool, sizeof(*shaderpass));
2487         shaderpass->alphatest = layer->alphatest != 0;
2488         shaderpass->framerate = layer->framerate;
2489         shaderpass->numframes = layer->numframes;
2490         shaderpass->blendfunc[0] = layer->blendfunc[0];
2491         shaderpass->blendfunc[1] = layer->blendfunc[1];
2492         shaderpass->rgbgen = layer->rgbgen;
2493         shaderpass->alphagen = layer->alphagen;
2494         shaderpass->tcgen = layer->tcgen;
2495         for (j = 0; j < Q3MAXTCMODS && layer->tcmods[j].tcmod != Q3TCMOD_NONE; j++)
2496                 shaderpass->tcmods[j] = layer->tcmods[j];
2497         for (j = 0; j < layer->numframes; j++)
2498                 shaderpass->skinframes[j] = R_SkinFrame_LoadExternal(layer->texturename[j], texflags, false, true);
2499         return shaderpass;
2500 }
2501
2502 qboolean Mod_LoadTextureFromQ3Shader(mempool_t *mempool, const char *modelname, texture_t *texture, const char *name, qboolean warnmissing, qboolean fallback, int defaulttexflags, int defaultmaterialflags)
2503 {
2504         int texflagsmask, texflagsor;
2505         qboolean success = true;
2506         q3shaderinfo_t *shader;
2507         if (!name)
2508                 name = "";
2509         strlcpy(texture->name, name, sizeof(texture->name));
2510         texture->basealpha = 1.0f;
2511         shader = name[0] ? Mod_LookupQ3Shader(name) : NULL;
2512
2513         // allow disabling of picmip or compression by defaulttexflags
2514         texflagsmask = ~0;
2515         if(!(defaulttexflags & TEXF_PICMIP))
2516                 texflagsmask &= ~TEXF_PICMIP;
2517         if(!(defaulttexflags & TEXF_COMPRESS))
2518                 texflagsmask &= ~TEXF_COMPRESS;
2519         texflagsor = 0;
2520         if(defaulttexflags & TEXF_ISWORLD)
2521                 texflagsor |= TEXF_ISWORLD;
2522         if(defaulttexflags & TEXF_ISSPRITE)
2523                 texflagsor |= TEXF_ISSPRITE;
2524         // unless later loaded from the shader
2525         texture->offsetmapping = (mod_noshader_default_offsetmapping.value) ? OFFSETMAPPING_DEFAULT : OFFSETMAPPING_OFF;
2526         texture->offsetscale = 1;
2527         texture->offsetbias = 0;
2528         texture->specularscalemod = 1;
2529         texture->specularpowermod = 1;
2530         texture->rtlightambient = 0;
2531         texture->transparentsort = TRANSPARENTSORT_DISTANCE;
2532         // WHEN ADDING DEFAULTS HERE, REMEMBER TO PUT DEFAULTS IN ALL LOADERS
2533         // JUST GREP FOR "specularscalemod = 1".
2534
2535         if (shader)
2536         {
2537                 if (developer_loading.integer)
2538                         Con_Printf("%s: loaded shader for %s\n", modelname, name);
2539
2540                 if (shader->surfaceparms & Q3SURFACEPARM_SKY)
2541                 {
2542                         texture->basematerialflags = MATERIALFLAG_SKY;
2543                         if (shader->skyboxname[0] && loadmodel)
2544                         {
2545                                 // quake3 seems to append a _ to the skybox name, so this must do so as well
2546                                 dpsnprintf(loadmodel->brush.skybox, sizeof(loadmodel->brush.skybox), "%s_", shader->skyboxname);
2547                         }
2548                 }
2549                 else if ((texture->surfaceflags & Q3SURFACEFLAG_NODRAW) || shader->numlayers == 0)
2550                         texture->basematerialflags = MATERIALFLAG_NODRAW | MATERIALFLAG_NOSHADOW;
2551                 else
2552                         texture->basematerialflags = MATERIALFLAG_WALL;
2553
2554                 if (shader->layers[0].alphatest)
2555                         texture->basematerialflags |= MATERIALFLAG_ALPHATEST | MATERIALFLAG_NOSHADOW;
2556                 if (shader->textureflags & Q3TEXTUREFLAG_TWOSIDED)
2557                         texture->basematerialflags |= MATERIALFLAG_NOSHADOW | MATERIALFLAG_NOCULLFACE;
2558                 if (shader->textureflags & Q3TEXTUREFLAG_POLYGONOFFSET)
2559                 {
2560                         texture->biaspolygonoffset += shader->biaspolygonoffset;
2561                         texture->biaspolygonfactor += shader->biaspolygonfactor;
2562                 }
2563                 if (shader->textureflags & Q3TEXTUREFLAG_REFRACTION)
2564                         texture->basematerialflags |= MATERIALFLAG_REFRACTION;
2565                 if (shader->textureflags & Q3TEXTUREFLAG_REFLECTION)
2566                         texture->basematerialflags |= MATERIALFLAG_REFLECTION;
2567                 if (shader->textureflags & Q3TEXTUREFLAG_WATERSHADER)
2568                         texture->basematerialflags |= MATERIALFLAG_WATERSHADER;
2569                 if (shader->textureflags & Q3TEXTUREFLAG_CAMERA)
2570                         texture->basematerialflags |= MATERIALFLAG_CAMERA;
2571                 texture->customblendfunc[0] = GL_ONE;
2572                 texture->customblendfunc[1] = GL_ZERO;
2573                 texture->transparentsort = shader->transparentsort;
2574                 if (shader->numlayers > 0)
2575                 {
2576                         texture->customblendfunc[0] = shader->layers[0].blendfunc[0];
2577                         texture->customblendfunc[1] = shader->layers[0].blendfunc[1];
2578 /*
2579 Q3 shader blendfuncs actually used in the game (* = supported by DP)
2580 * additive               GL_ONE GL_ONE
2581 additive weird         GL_ONE GL_SRC_ALPHA
2582 additive weird 2       GL_ONE GL_ONE_MINUS_SRC_ALPHA
2583 * alpha                  GL_SRC_ALPHA GL_ONE_MINUS_SRC_ALPHA
2584 alpha inverse          GL_ONE_MINUS_SRC_ALPHA GL_SRC_ALPHA
2585 brighten               GL_DST_COLOR GL_ONE
2586 brighten               GL_ONE GL_SRC_COLOR
2587 brighten weird         GL_DST_COLOR GL_ONE_MINUS_DST_ALPHA
2588 brighten weird 2       GL_DST_COLOR GL_SRC_ALPHA
2589 * modulate               GL_DST_COLOR GL_ZERO
2590 * modulate               GL_ZERO GL_SRC_COLOR
2591 modulate inverse       GL_ZERO GL_ONE_MINUS_SRC_COLOR
2592 modulate inverse alpha GL_ZERO GL_SRC_ALPHA
2593 modulate weird inverse GL_ONE_MINUS_DST_COLOR GL_ZERO
2594 * modulate x2            GL_DST_COLOR GL_SRC_COLOR
2595 * no blend               GL_ONE GL_ZERO
2596 nothing                GL_ZERO GL_ONE
2597 */
2598                         // if not opaque, figure out what blendfunc to use
2599                         if (shader->layers[0].blendfunc[0] != GL_ONE || shader->layers[0].blendfunc[1] != GL_ZERO)
2600                         {
2601                                 if (shader->layers[0].blendfunc[0] == GL_ONE && shader->layers[0].blendfunc[1] == GL_ONE)
2602                                         texture->basematerialflags |= MATERIALFLAG_ADD | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
2603                                 else if (shader->layers[0].blendfunc[0] == GL_SRC_ALPHA && shader->layers[0].blendfunc[1] == GL_ONE)
2604                                         texture->basematerialflags |= MATERIALFLAG_ADD | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
2605                                 else if (shader->layers[0].blendfunc[0] == GL_SRC_ALPHA && shader->layers[0].blendfunc[1] == GL_ONE_MINUS_SRC_ALPHA)
2606                                         texture->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
2607                                 else
2608                                         texture->basematerialflags |= MATERIALFLAG_CUSTOMBLEND | MATERIALFLAG_FULLBRIGHT | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
2609                         }
2610                 }
2611                 if (!shader->lighting)
2612                         texture->basematerialflags |= MATERIALFLAG_FULLBRIGHT;
2613
2614                 // here be dragons: convert quake3 shaders to material
2615                 if (shader->numlayers > 0)
2616                 {
2617                         int i;
2618                         int terrainbackgroundlayer = -1;
2619                         int lightmaplayer = -1;
2620                         int alphagenspecularlayer = -1;
2621                         int rgbgenvertexlayer = -1;
2622                         int rgbgendiffuselayer = -1;
2623                         int materiallayer = -1;
2624                         int endofprelayers = 0;
2625                         int firstpostlayer = 0;
2626                         int shaderpassindex = 0;
2627                         for (i = 0; i < shader->numlayers; i++)
2628                         {
2629                                 if (shader->layers[i].texturename != NULL && !strcasecmp(shader->layers[i].texturename[0], "$lightmap"))
2630                                         lightmaplayer = i;
2631                                 if (shader->layers[i].rgbgen.rgbgen == Q3RGBGEN_VERTEX)
2632                                         rgbgenvertexlayer = i;
2633                                 if (shader->layers[i].rgbgen.rgbgen == Q3RGBGEN_LIGHTINGDIFFUSE)
2634                                         rgbgendiffuselayer = i;
2635                                 if (shader->layers[i].alphagen.alphagen == Q3ALPHAGEN_LIGHTINGSPECULAR)
2636                                         alphagenspecularlayer = i;
2637                         }
2638                         if (shader->numlayers >= 2
2639                          && shader->layers[1].alphagen.alphagen == Q3ALPHAGEN_VERTEX
2640                          && (shader->layers[0].blendfunc[0] == GL_ONE && shader->layers[0].blendfunc[1] == GL_ZERO && !shader->layers[0].alphatest)
2641                          && ((shader->layers[1].blendfunc[0] == GL_SRC_ALPHA && shader->layers[1].blendfunc[1] == GL_ONE_MINUS_SRC_ALPHA)
2642                                  || (shader->layers[1].blendfunc[0] == GL_ONE && shader->layers[1].blendfunc[1] == GL_ZERO && shader->layers[1].alphatest)))
2643                         {
2644                                 // terrain blend or certain other effects involving alphatest over a regular layer
2645                                 terrainbackgroundlayer = 0;
2646                                 materiallayer = 1;
2647                                 // terrain may be vertex lit (in which case both layers are rgbGen vertex) or lightmapped (in which ase the third layer is lightmap)
2648                                 firstpostlayer = lightmaplayer >= 0 ? lightmaplayer + 1 : materiallayer + 1;
2649                         }
2650                         else if (lightmaplayer == 0)
2651                         {
2652                                 // ordinary texture but with $lightmap before diffuse
2653                                 materiallayer = 1;
2654                                 firstpostlayer = lightmaplayer + 2;
2655                         }
2656                         else if (lightmaplayer >= 1)
2657                         {
2658                                 // ordinary texture - we don't properly apply lighting to the prelayers, but oh well...
2659                                 endofprelayers = lightmaplayer - 1;
2660                                 materiallayer = lightmaplayer - 1;
2661                                 firstpostlayer = lightmaplayer + 1;
2662                         }
2663                         else if (rgbgenvertexlayer >= 0)
2664                         {
2665                                 // map models with baked lighting
2666                                 materiallayer = rgbgenvertexlayer;
2667                                 endofprelayers = rgbgenvertexlayer;
2668                                 firstpostlayer = rgbgenvertexlayer + 1;
2669                                 // special case for rgbgen vertex if MATERIALFLAG_VERTEXCOLOR is expected on this material
2670                                 if (defaultmaterialflags & MATERIALFLAG_VERTEXCOLOR)
2671                                         texture->basematerialflags |= MATERIALFLAG_VERTEXCOLOR;
2672                         }
2673                         else if (rgbgendiffuselayer >= 0)
2674                         {
2675                                 // entity models with dynamic lighting
2676                                 materiallayer = rgbgendiffuselayer;
2677                                 endofprelayers = rgbgendiffuselayer;
2678                                 firstpostlayer = rgbgendiffuselayer + 1;
2679                                 // player models often have specular as a pass after diffuse - we don't currently make use of that specular texture (would need to meld it into the skinframe)...
2680                                 if (alphagenspecularlayer >= 0)
2681                                         firstpostlayer = alphagenspecularlayer + 1;
2682                         }
2683                         else
2684                         {
2685                                 // special effects shaders - treat first as primary layer and do everything else as post
2686                                 endofprelayers = 0;
2687                                 materiallayer = 0;
2688                                 firstpostlayer = 1;
2689                         }
2690                         // convert the main material layer
2691                         // FIXME: if alphagenspecularlayer is used, we should pass a specular texture name to R_SkinFrame_LoadExternal and have it load that texture instead of the assumed name for _gloss texture
2692                         if (materiallayer >= 0)
2693                                 texture->materialshaderpass = texture->shaderpasses[shaderpassindex++] = Mod_CreateShaderPassFromQ3ShaderLayer(mempool, modelname, &shader->layers[materiallayer], materiallayer, (shader->layers[materiallayer].dptexflags & texflagsmask) | texflagsor, texture->name);
2694                         // convert the terrain background blend layer (if any)
2695                         if (terrainbackgroundlayer >= 0)
2696                                 texture->backgroundshaderpass = texture->shaderpasses[shaderpassindex++] = Mod_CreateShaderPassFromQ3ShaderLayer(mempool, modelname, &shader->layers[terrainbackgroundlayer], terrainbackgroundlayer, (shader->layers[terrainbackgroundlayer].dptexflags & texflagsmask) | texflagsor, texture->name);
2697                         // convert the prepass layers (if any)
2698                         texture->startpreshaderpass = shaderpassindex;
2699                         for (i = 0; i < endofprelayers; i++)
2700                                 texture->shaderpasses[shaderpassindex++] = Mod_CreateShaderPassFromQ3ShaderLayer(mempool, modelname, &shader->layers[i], i, (shader->layers[i].dptexflags & texflagsmask) | texflagsor, texture->name);
2701                         texture->endpreshaderpass = shaderpassindex;
2702                         texture->startpostshaderpass = shaderpassindex;
2703                         // convert the postpass layers (if any)
2704                         for (i = firstpostlayer; i < shader->numlayers; i++)
2705                                 texture->shaderpasses[shaderpassindex++] = Mod_CreateShaderPassFromQ3ShaderLayer(mempool, modelname, &shader->layers[i], i, (shader->layers[i].dptexflags & texflagsmask) | texflagsor, texture->name);
2706                         texture->startpostshaderpass = shaderpassindex;
2707                 }
2708
2709                 if (shader->dpshadow)
2710                         texture->basematerialflags &= ~MATERIALFLAG_NOSHADOW;
2711                 if (shader->dpnoshadow)
2712                         texture->basematerialflags |= MATERIALFLAG_NOSHADOW;
2713                 if (shader->dpnortlight)
2714                         texture->basematerialflags |= MATERIALFLAG_NORTLIGHT;
2715                 if (shader->vertexalpha)
2716                         texture->basematerialflags |= MATERIALFLAG_ALPHAGEN_VERTEX;
2717                 memcpy(texture->deforms, shader->deforms, sizeof(texture->deforms));
2718                 texture->reflectmin = shader->reflectmin;
2719                 texture->reflectmax = shader->reflectmax;
2720                 texture->refractfactor = shader->refractfactor;
2721                 Vector4Copy(shader->refractcolor4f, texture->refractcolor4f);
2722                 texture->reflectfactor = shader->reflectfactor;
2723                 Vector4Copy(shader->reflectcolor4f, texture->reflectcolor4f);
2724                 texture->r_water_wateralpha = shader->r_water_wateralpha;
2725                 Vector2Copy(shader->r_water_waterscroll, texture->r_water_waterscroll);
2726                 texture->offsetmapping = shader->offsetmapping;
2727                 texture->offsetscale = shader->offsetscale;
2728                 texture->offsetbias = shader->offsetbias;
2729                 texture->specularscalemod = shader->specularscalemod;
2730                 texture->specularpowermod = shader->specularpowermod;
2731                 texture->rtlightambient = shader->rtlightambient;
2732                 if (shader->dpreflectcube[0])
2733                         texture->reflectcubetexture = R_GetCubemap(shader->dpreflectcube);
2734
2735                 // set up default supercontents (on q3bsp this is overridden by the q3bsp loader)
2736                 texture->supercontents = SUPERCONTENTS_SOLID | SUPERCONTENTS_OPAQUE;
2737                 if (shader->surfaceparms & Q3SURFACEPARM_LAVA         ) texture->supercontents  = SUPERCONTENTS_LAVA         ;
2738                 if (shader->surfaceparms & Q3SURFACEPARM_SLIME        ) texture->supercontents  = SUPERCONTENTS_SLIME        ;
2739                 if (shader->surfaceparms & Q3SURFACEPARM_WATER        ) texture->supercontents  = SUPERCONTENTS_WATER        ;
2740                 if (shader->surfaceparms & Q3SURFACEPARM_NONSOLID     ) texture->supercontents  = 0                          ;
2741                 if (shader->surfaceparms & Q3SURFACEPARM_PLAYERCLIP   ) texture->supercontents  = SUPERCONTENTS_PLAYERCLIP   ;
2742                 if (shader->surfaceparms & Q3SURFACEPARM_BOTCLIP      ) texture->supercontents  = SUPERCONTENTS_MONSTERCLIP  ;
2743                 if (shader->surfaceparms & Q3SURFACEPARM_SKY          ) texture->supercontents  = SUPERCONTENTS_SKY          ;
2744
2745         //      if (shader->surfaceparms & Q3SURFACEPARM_ALPHASHADOW  ) texture->supercontents |= SUPERCONTENTS_ALPHASHADOW  ;
2746         //      if (shader->surfaceparms & Q3SURFACEPARM_AREAPORTAL   ) texture->supercontents |= SUPERCONTENTS_AREAPORTAL   ;
2747         //      if (shader->surfaceparms & Q3SURFACEPARM_CLUSTERPORTAL) texture->supercontents |= SUPERCONTENTS_CLUSTERPORTAL;
2748         //      if (shader->surfaceparms & Q3SURFACEPARM_DETAIL       ) texture->supercontents |= SUPERCONTENTS_DETAIL       ;
2749                 if (shader->surfaceparms & Q3SURFACEPARM_DONOTENTER   ) texture->supercontents |= SUPERCONTENTS_DONOTENTER   ;
2750         //      if (shader->surfaceparms & Q3SURFACEPARM_FOG          ) texture->supercontents |= SUPERCONTENTS_FOG          ;
2751                 if (shader->surfaceparms & Q3SURFACEPARM_LAVA         ) texture->supercontents |= SUPERCONTENTS_LAVA         ;
2752         //      if (shader->surfaceparms & Q3SURFACEPARM_LIGHTFILTER  ) texture->supercontents |= SUPERCONTENTS_LIGHTFILTER  ;
2753         //      if (shader->surfaceparms & Q3SURFACEPARM_METALSTEPS   ) texture->supercontents |= SUPERCONTENTS_METALSTEPS   ;
2754         //      if (shader->surfaceparms & Q3SURFACEPARM_NODAMAGE     ) texture->supercontents |= SUPERCONTENTS_NODAMAGE     ;
2755         //      if (shader->surfaceparms & Q3SURFACEPARM_NODLIGHT     ) texture->supercontents |= SUPERCONTENTS_NODLIGHT     ;
2756         //      if (shader->surfaceparms & Q3SURFACEPARM_NODRAW       ) texture->supercontents |= SUPERCONTENTS_NODRAW       ;
2757                 if (shader->surfaceparms & Q3SURFACEPARM_NODROP       ) texture->supercontents |= SUPERCONTENTS_NODROP       ;
2758         //      if (shader->surfaceparms & Q3SURFACEPARM_NOIMPACT     ) texture->supercontents |= SUPERCONTENTS_NOIMPACT     ;
2759         //      if (shader->surfaceparms & Q3SURFACEPARM_NOLIGHTMAP   ) texture->supercontents |= SUPERCONTENTS_NOLIGHTMAP   ;
2760         //      if (shader->surfaceparms & Q3SURFACEPARM_NOMARKS      ) texture->supercontents |= SUPERCONTENTS_NOMARKS      ;
2761         //      if (shader->surfaceparms & Q3SURFACEPARM_NOMIPMAPS    ) texture->supercontents |= SUPERCONTENTS_NOMIPMAPS    ;
2762                 if (shader->surfaceparms & Q3SURFACEPARM_NONSOLID     ) texture->supercontents &=~SUPERCONTENTS_SOLID        ;
2763         //      if (shader->surfaceparms & Q3SURFACEPARM_ORIGIN       ) texture->supercontents |= SUPERCONTENTS_ORIGIN       ;
2764                 if (shader->surfaceparms & Q3SURFACEPARM_PLAYERCLIP   ) texture->supercontents |= SUPERCONTENTS_PLAYERCLIP   ;
2765                 if (shader->surfaceparms & Q3SURFACEPARM_SKY          ) texture->supercontents |= SUPERCONTENTS_SKY          ;
2766         //      if (shader->surfaceparms & Q3SURFACEPARM_SLICK        ) texture->supercontents |= SUPERCONTENTS_SLICK        ;
2767                 if (shader->surfaceparms & Q3SURFACEPARM_SLIME        ) texture->supercontents |= SUPERCONTENTS_SLIME        ;
2768         //      if (shader->surfaceparms & Q3SURFACEPARM_STRUCTURAL   ) texture->supercontents |= SUPERCONTENTS_STRUCTURAL   ;
2769         //      if (shader->surfaceparms & Q3SURFACEPARM_TRANS        ) texture->supercontents |= SUPERCONTENTS_TRANS        ;
2770                 if (shader->surfaceparms & Q3SURFACEPARM_WATER        ) texture->supercontents |= SUPERCONTENTS_WATER        ;
2771         //      if (shader->surfaceparms & Q3SURFACEPARM_POINTLIGHT   ) texture->supercontents |= SUPERCONTENTS_POINTLIGHT   ;
2772         //      if (shader->surfaceparms & Q3SURFACEPARM_HINT         ) texture->supercontents |= SUPERCONTENTS_HINT         ;
2773         //      if (shader->surfaceparms & Q3SURFACEPARM_DUST         ) texture->supercontents |= SUPERCONTENTS_DUST         ;
2774                 if (shader->surfaceparms & Q3SURFACEPARM_BOTCLIP      ) texture->supercontents |= SUPERCONTENTS_BOTCLIP      | SUPERCONTENTS_MONSTERCLIP;
2775         //      if (shader->surfaceparms & Q3SURFACEPARM_LIGHTGRID    ) texture->supercontents |= SUPERCONTENTS_LIGHTGRID    ;
2776         //      if (shader->surfaceparms & Q3SURFACEPARM_ANTIPORTAL   ) texture->supercontents |= SUPERCONTENTS_ANTIPORTAL   ;
2777
2778                 texture->surfaceflags = shader->surfaceflags;
2779                 if (shader->surfaceparms & Q3SURFACEPARM_ALPHASHADOW  ) texture->surfaceflags |= Q3SURFACEFLAG_ALPHASHADOW  ;
2780         //      if (shader->surfaceparms & Q3SURFACEPARM_AREAPORTAL   ) texture->surfaceflags |= Q3SURFACEFLAG_AREAPORTAL   ;
2781         //      if (shader->surfaceparms & Q3SURFACEPARM_CLUSTERPORTAL) texture->surfaceflags |= Q3SURFACEFLAG_CLUSTERPORTAL;
2782         //      if (shader->surfaceparms & Q3SURFACEPARM_DETAIL       ) texture->surfaceflags |= Q3SURFACEFLAG_DETAIL       ;
2783         //      if (shader->surfaceparms & Q3SURFACEPARM_DONOTENTER   ) texture->surfaceflags |= Q3SURFACEFLAG_DONOTENTER   ;
2784         //      if (shader->surfaceparms & Q3SURFACEPARM_FOG          ) texture->surfaceflags |= Q3SURFACEFLAG_FOG          ;
2785         //      if (shader->surfaceparms & Q3SURFACEPARM_LAVA         ) texture->surfaceflags |= Q3SURFACEFLAG_LAVA         ;
2786                 if (shader->surfaceparms & Q3SURFACEPARM_LIGHTFILTER  ) texture->surfaceflags |= Q3SURFACEFLAG_LIGHTFILTER  ;
2787                 if (shader->surfaceparms & Q3SURFACEPARM_METALSTEPS   ) texture->surfaceflags |= Q3SURFACEFLAG_METALSTEPS   ;
2788                 if (shader->surfaceparms & Q3SURFACEPARM_NODAMAGE     ) texture->surfaceflags |= Q3SURFACEFLAG_NODAMAGE     ;
2789                 if (shader->surfaceparms & Q3SURFACEPARM_NODLIGHT     ) texture->surfaceflags |= Q3SURFACEFLAG_NODLIGHT     ;
2790                 if (shader->surfaceparms & Q3SURFACEPARM_NODRAW       ) texture->surfaceflags |= Q3SURFACEFLAG_NODRAW       ;
2791         //      if (shader->surfaceparms & Q3SURFACEPARM_NODROP       ) texture->surfaceflags |= Q3SURFACEFLAG_NODROP       ;
2792                 if (shader->surfaceparms & Q3SURFACEPARM_NOIMPACT     ) texture->surfaceflags |= Q3SURFACEFLAG_NOIMPACT     ;
2793                 if (shader->surfaceparms & Q3SURFACEPARM_NOLIGHTMAP   ) texture->surfaceflags |= Q3SURFACEFLAG_NOLIGHTMAP   ;
2794                 if (shader->surfaceparms & Q3SURFACEPARM_NOMARKS      ) texture->surfaceflags |= Q3SURFACEFLAG_NOMARKS      ;
2795         //      if (shader->surfaceparms & Q3SURFACEPARM_NOMIPMAPS    ) texture->surfaceflags |= Q3SURFACEFLAG_NOMIPMAPS    ;
2796                 if (shader->surfaceparms & Q3SURFACEPARM_NONSOLID     ) texture->surfaceflags |= Q3SURFACEFLAG_NONSOLID     ;
2797         //      if (shader->surfaceparms & Q3SURFACEPARM_ORIGIN       ) texture->surfaceflags |= Q3SURFACEFLAG_ORIGIN       ;
2798         //      if (shader->surfaceparms & Q3SURFACEPARM_PLAYERCLIP   ) texture->surfaceflags |= Q3SURFACEFLAG_PLAYERCLIP   ;
2799                 if (shader->surfaceparms & Q3SURFACEPARM_SKY          ) texture->surfaceflags |= Q3SURFACEFLAG_SKY          ;
2800                 if (shader->surfaceparms & Q3SURFACEPARM_SLICK        ) texture->surfaceflags |= Q3SURFACEFLAG_SLICK        ;
2801         //      if (shader->surfaceparms & Q3SURFACEPARM_SLIME        ) texture->surfaceflags |= Q3SURFACEFLAG_SLIME        ;
2802         //      if (shader->surfaceparms & Q3SURFACEPARM_STRUCTURAL   ) texture->surfaceflags |= Q3SURFACEFLAG_STRUCTURAL   ;
2803         //      if (shader->surfaceparms & Q3SURFACEPARM_TRANS        ) texture->surfaceflags |= Q3SURFACEFLAG_TRANS        ;
2804         //      if (shader->surfaceparms & Q3SURFACEPARM_WATER        ) texture->surfaceflags |= Q3SURFACEFLAG_WATER        ;
2805                 if (shader->surfaceparms & Q3SURFACEPARM_POINTLIGHT   ) texture->surfaceflags |= Q3SURFACEFLAG_POINTLIGHT   ;
2806                 if (shader->surfaceparms & Q3SURFACEPARM_HINT         ) texture->surfaceflags |= Q3SURFACEFLAG_HINT         ;
2807                 if (shader->surfaceparms & Q3SURFACEPARM_DUST         ) texture->surfaceflags |= Q3SURFACEFLAG_DUST         ;
2808         //      if (shader->surfaceparms & Q3SURFACEPARM_BOTCLIP      ) texture->surfaceflags |= Q3SURFACEFLAG_BOTCLIP      ;
2809         //      if (shader->surfaceparms & Q3SURFACEPARM_LIGHTGRID    ) texture->surfaceflags |= Q3SURFACEFLAG_LIGHTGRID    ;
2810         //      if (shader->surfaceparms & Q3SURFACEPARM_ANTIPORTAL   ) texture->surfaceflags |= Q3SURFACEFLAG_ANTIPORTAL   ;
2811
2812                 if (shader->dpmeshcollisions)
2813                         texture->basematerialflags |= MATERIALFLAG_MESHCOLLISIONS;
2814                 if (shader->dpshaderkill && developer_extra.integer)
2815                         Con_DPrintf("^1%s:^7 killing shader ^3\"%s\" because of cvar\n", modelname, name);
2816         }
2817         else if (!strcmp(texture->name, "noshader") || !texture->name[0])
2818         {
2819                 if (developer_extra.integer)
2820                         Con_DPrintf("^1%s:^7 using fallback noshader material for ^3\"%s\"\n", modelname, name);
2821                 texture->supercontents = SUPERCONTENTS_SOLID | SUPERCONTENTS_OPAQUE;
2822         }
2823         else if (!strcmp(texture->name, "common/nodraw") || !strcmp(texture->name, "textures/common/nodraw"))
2824         {
2825                 if (developer_extra.integer)
2826                         Con_DPrintf("^1%s:^7 using fallback nodraw material for ^3\"%s\"\n", modelname, name);
2827                 texture->basematerialflags = MATERIALFLAG_NODRAW | MATERIALFLAG_NOSHADOW;
2828                 texture->supercontents = SUPERCONTENTS_SOLID;
2829         }
2830         else
2831         {
2832                 if (developer_extra.integer)
2833                         Con_DPrintf("^1%s:^7 No shader found for texture ^3\"%s\"\n", modelname, texture->name);
2834                 if (texture->surfaceflags & Q3SURFACEFLAG_NODRAW)
2835                 {
2836                         texture->basematerialflags = MATERIALFLAG_NODRAW | MATERIALFLAG_NOSHADOW;
2837                         texture->supercontents = SUPERCONTENTS_SOLID;
2838                 }
2839                 else if (texture->surfaceflags & Q3SURFACEFLAG_SKY)
2840                 {
2841                         texture->basematerialflags = MATERIALFLAG_SKY;
2842                         texture->supercontents = SUPERCONTENTS_SKY;
2843                 }
2844                 else
2845                 {
2846                         texture->basematerialflags = defaultmaterialflags;
2847                         texture->supercontents = SUPERCONTENTS_SOLID | SUPERCONTENTS_OPAQUE;
2848                 }
2849                 if(cls.state == ca_dedicated)
2850                 {
2851                         texture->materialshaderpass = NULL;
2852                         success = false;
2853                 }
2854                 else
2855                 {
2856                         skinframe_t *skinframe = R_SkinFrame_LoadExternal(texture->name, defaulttexflags, false, fallback);
2857                         if (skinframe)
2858                         {
2859                                 texture->materialshaderpass = texture->shaderpasses[0] = Mod_CreateShaderPass(mempool, skinframe);
2860                                 if (texture->materialshaderpass->skinframes[0]->hasalpha)
2861                                         texture->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
2862                                 if (texture->q2contents)
2863                                         texture->supercontents = Mod_Q2BSP_SuperContentsFromNativeContents(texture->q2contents);
2864                         }
2865                         else
2866                                 success = false;
2867                         if (!success && warnmissing)
2868                                 Con_Printf("^1%s:^7 could not load texture ^3\"%s\"\n", modelname, texture->name);
2869                 }
2870         }
2871         // init the animation variables
2872         texture->currentframe = texture;
2873         texture->currentmaterialflags = texture->basematerialflags;
2874         if (!texture->materialshaderpass)
2875                 texture->materialshaderpass = texture->shaderpasses[0] = Mod_CreateShaderPass(mempool, R_SkinFrame_LoadMissing());
2876         if (!texture->materialshaderpass->skinframes[0])
2877                 texture->materialshaderpass->skinframes[0] = R_SkinFrame_LoadMissing();
2878         texture->currentskinframe = texture->materialshaderpass ? texture->materialshaderpass->skinframes[0] : NULL;
2879         texture->backgroundcurrentskinframe = texture->backgroundshaderpass ? texture->backgroundshaderpass->skinframes[0] : NULL;
2880         return success;
2881 }
2882
2883 void Mod_LoadCustomMaterial(mempool_t *mempool, texture_t *texture, const char *name, int supercontents, int materialflags, skinframe_t *skinframe)
2884 {
2885         if (!(materialflags & (MATERIALFLAG_WALL | MATERIALFLAG_SKY)))
2886                 Con_DPrintf("^1Custom texture ^3\"%s\" does not have MATERIALFLAG_WALL set\n", texture->name);
2887
2888         strlcpy(texture->name, name, sizeof(texture->name));
2889         texture->basealpha = 1.0f;
2890         texture->basematerialflags = materialflags;
2891         texture->supercontents = supercontents;
2892
2893         texture->offsetmapping = (mod_noshader_default_offsetmapping.value) ? OFFSETMAPPING_DEFAULT : OFFSETMAPPING_OFF;
2894         texture->offsetscale = 1;
2895         texture->offsetbias = 0;
2896         texture->specularscalemod = 1;
2897         texture->specularpowermod = 1;
2898         texture->rtlightambient = 0;
2899         texture->transparentsort = TRANSPARENTSORT_DISTANCE;
2900         // WHEN ADDING DEFAULTS HERE, REMEMBER TO PUT DEFAULTS IN ALL LOADERS
2901         // JUST GREP FOR "specularscalemod = 1".
2902
2903         if (developer_extra.integer)
2904                 Con_DPrintf("^1Custom texture ^3\"%s\"\n", texture->name);
2905         if (skinframe)
2906                 texture->materialshaderpass = texture->shaderpasses[0] = Mod_CreateShaderPass(mempool, skinframe);
2907
2908         // init the animation variables
2909         texture->currentmaterialflags = texture->basematerialflags;
2910         texture->currentframe = texture;
2911         texture->currentskinframe = skinframe;
2912         texture->backgroundcurrentskinframe = NULL;
2913 }
2914
2915 void Mod_UnloadCustomMaterial(texture_t *texture, qboolean purgeskins)
2916 {
2917         int i, j;
2918         for (i = 0; i < sizeof(texture->shaderpasses) / sizeof(texture->shaderpasses[0]); i++)
2919         {
2920                 if (texture->shaderpasses[i])
2921                 {
2922                         if (purgeskins)
2923                                 for (j = 0; j < sizeof(texture->shaderpasses[i]->skinframes) / sizeof(skinframe_t *);j++)
2924                                         if (texture->shaderpasses[i]->skinframes[j] && texture->shaderpasses[i]->skinframes[j]->base)
2925                                                 R_SkinFrame_PurgeSkinFrame(texture->shaderpasses[i]->skinframes[j]);
2926                         Mem_Free(texture->shaderpasses[i]);
2927                         texture->shaderpasses[i] = NULL;
2928                 }
2929         }
2930         texture->materialshaderpass = NULL;
2931         texture->currentskinframe = NULL;
2932         texture->backgroundcurrentskinframe = NULL;
2933 }
2934
2935 skinfile_t *Mod_LoadSkinFiles(void)
2936 {
2937         int i, words, line, wordsoverflow;
2938         char *text;
2939         const char *data;
2940         skinfile_t *skinfile = NULL, *first = NULL;
2941         skinfileitem_t *skinfileitem;
2942         char word[10][MAX_QPATH];
2943         char vabuf[1024];
2944
2945 /*
2946 sample file:
2947 U_bodyBox,models/players/Legoman/BikerA2.tga
2948 U_RArm,models/players/Legoman/BikerA1.tga
2949 U_LArm,models/players/Legoman/BikerA1.tga
2950 U_armor,common/nodraw
2951 U_sword,common/nodraw
2952 U_shield,common/nodraw
2953 U_homb,common/nodraw
2954 U_backpack,common/nodraw
2955 U_colcha,common/nodraw
2956 tag_head,
2957 tag_weapon,
2958 tag_torso,
2959 */
2960         memset(word, 0, sizeof(word));
2961         for (i = 0;i < 256 && (data = text = (char *)FS_LoadFile(va(vabuf, sizeof(vabuf), "%s_%i.skin", loadmodel->name, i), tempmempool, true, NULL));i++)
2962         {
2963                 // If it's the first file we parse
2964                 if (skinfile == NULL)
2965                 {
2966                         skinfile = (skinfile_t *)Mem_Alloc(loadmodel->mempool, sizeof(skinfile_t));
2967                         first = skinfile;
2968                 }
2969                 else
2970                 {
2971                         skinfile->next = (skinfile_t *)Mem_Alloc(loadmodel->mempool, sizeof(skinfile_t));
2972                         skinfile = skinfile->next;
2973                 }
2974                 skinfile->next = NULL;
2975
2976                 for(line = 0;;line++)
2977                 {
2978                         // parse line
2979                         if (!COM_ParseToken_QuakeC(&data, true))
2980                                 break;
2981                         if (!strcmp(com_token, "\n"))
2982                                 continue;
2983                         words = 0;
2984                         wordsoverflow = false;
2985                         do
2986                         {
2987                                 if (words < 10)
2988                                         strlcpy(word[words++], com_token, sizeof (word[0]));
2989                                 else
2990                                         wordsoverflow = true;
2991                         }
2992                         while (COM_ParseToken_QuakeC(&data, true) && strcmp(com_token, "\n"));
2993                         if (wordsoverflow)
2994                         {
2995                                 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);
2996                                 continue;
2997                         }
2998                         // words is always >= 1
2999                         if (!strcmp(word[0], "replace"))
3000                         {
3001                                 if (words == 3)
3002                                 {
3003                                         if (developer_loading.integer)
3004                                                 Con_Printf("Mod_LoadSkinFiles: parsed mesh \"%s\" shader replacement \"%s\"\n", word[1], word[2]);
3005                                         skinfileitem = (skinfileitem_t *)Mem_Alloc(loadmodel->mempool, sizeof(skinfileitem_t));
3006                                         skinfileitem->next = skinfile->items;
3007                                         skinfile->items = skinfileitem;
3008                                         strlcpy (skinfileitem->name, word[1], sizeof (skinfileitem->name));
3009                                         strlcpy (skinfileitem->replacement, word[2], sizeof (skinfileitem->replacement));
3010                                 }
3011                                 else
3012                                         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]);
3013                         }
3014                         else if (words >= 2 && !strncmp(word[0], "tag_", 4))
3015                         {
3016                                 // tag name, like "tag_weapon,"
3017                                 // not used for anything (not even in Quake3)
3018                         }
3019                         else if (words >= 2 && !strcmp(word[1], ","))
3020                         {
3021                                 // mesh shader name, like "U_RArm,models/players/Legoman/BikerA1.tga"
3022                                 if (developer_loading.integer)
3023                                         Con_Printf("Mod_LoadSkinFiles: parsed mesh \"%s\" shader replacement \"%s\"\n", word[0], word[2]);
3024                                 skinfileitem = (skinfileitem_t *)Mem_Alloc(loadmodel->mempool, sizeof(skinfileitem_t));
3025                                 skinfileitem->next = skinfile->items;
3026                                 skinfile->items = skinfileitem;
3027                                 strlcpy (skinfileitem->name, word[0], sizeof (skinfileitem->name));
3028                                 strlcpy (skinfileitem->replacement, word[2], sizeof (skinfileitem->replacement));
3029                         }
3030                         else
3031                                 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);
3032                 }
3033                 Mem_Free(text);
3034         }
3035         if (i)
3036                 loadmodel->numskins = i;
3037         return first;
3038 }
3039
3040 void Mod_FreeSkinFiles(skinfile_t *skinfile)
3041 {
3042         skinfile_t *next;
3043         skinfileitem_t *skinfileitem, *nextitem;
3044         for (;skinfile;skinfile = next)
3045         {
3046                 next = skinfile->next;
3047                 for (skinfileitem = skinfile->items;skinfileitem;skinfileitem = nextitem)
3048                 {
3049                         nextitem = skinfileitem->next;
3050                         Mem_Free(skinfileitem);
3051                 }
3052                 Mem_Free(skinfile);
3053         }
3054 }
3055
3056 int Mod_CountSkinFiles(skinfile_t *skinfile)
3057 {
3058         int i;
3059         for (i = 0;skinfile;skinfile = skinfile->next, i++);
3060         return i;
3061 }
3062
3063 void Mod_SnapVertices(int numcomponents, int numvertices, float *vertices, float snap)
3064 {
3065         int i;
3066         double isnap = 1.0 / snap;
3067         for (i = 0;i < numvertices*numcomponents;i++)
3068                 vertices[i] = floor(vertices[i]*isnap)*snap;
3069 }
3070
3071 int Mod_RemoveDegenerateTriangles(int numtriangles, const int *inelement3i, int *outelement3i, const float *vertex3f)
3072 {
3073         int i, outtriangles;
3074         float edgedir1[3], edgedir2[3], temp[3];
3075         // a degenerate triangle is one with no width (thickness, surface area)
3076         // these are characterized by having all 3 points colinear (along a line)
3077         // or having two points identical
3078         // the simplest check is to calculate the triangle's area
3079         for (i = 0, outtriangles = 0;i < numtriangles;i++, inelement3i += 3)
3080         {
3081                 // calculate first edge
3082                 VectorSubtract(vertex3f + inelement3i[1] * 3, vertex3f + inelement3i[0] * 3, edgedir1);
3083                 VectorSubtract(vertex3f + inelement3i[2] * 3, vertex3f + inelement3i[0] * 3, edgedir2);
3084                 CrossProduct(edgedir1, edgedir2, temp);
3085                 if (VectorLength2(temp) < 0.001f)
3086                         continue; // degenerate triangle (no area)
3087                 // valid triangle (has area)
3088                 VectorCopy(inelement3i, outelement3i);
3089                 outelement3i += 3;
3090                 outtriangles++;
3091         }
3092         return outtriangles;
3093 }
3094
3095 void Mod_VertexRangeFromElements(int numelements, const int *elements, int *firstvertexpointer, int *lastvertexpointer)
3096 {
3097         int i, e;
3098         int firstvertex, lastvertex;
3099         if (numelements > 0 && elements)
3100         {
3101                 firstvertex = lastvertex = elements[0];
3102                 for (i = 1;i < numelements;i++)
3103                 {
3104                         e = elements[i];
3105                         firstvertex = min(firstvertex, e);
3106                         lastvertex = max(lastvertex, e);
3107                 }
3108         }
3109         else
3110                 firstvertex = lastvertex = 0;
3111         if (firstvertexpointer)
3112                 *firstvertexpointer = firstvertex;
3113         if (lastvertexpointer)
3114                 *lastvertexpointer = lastvertex;
3115 }
3116
3117 void Mod_MakeSortedSurfaces(dp_model_t *mod)
3118 {
3119         // make an optimal set of texture-sorted batches to draw...
3120         int j, t;
3121         int *firstsurfacefortexture;
3122         int *numsurfacesfortexture;
3123         if (!mod->sortedmodelsurfaces)
3124                 mod->sortedmodelsurfaces = (int *) Mem_Alloc(loadmodel->mempool, mod->nummodelsurfaces * sizeof(*mod->sortedmodelsurfaces));
3125         firstsurfacefortexture = (int *) Mem_Alloc(tempmempool, mod->num_textures * sizeof(*firstsurfacefortexture));
3126         numsurfacesfortexture = (int *) Mem_Alloc(tempmempool, mod->num_textures * sizeof(*numsurfacesfortexture));
3127         memset(numsurfacesfortexture, 0, mod->num_textures * sizeof(*numsurfacesfortexture));
3128         for (j = 0;j < mod->nummodelsurfaces;j++)
3129         {
3130                 const msurface_t *surface = mod->data_surfaces + j + mod->firstmodelsurface;
3131                 t = (int)(surface->texture - mod->data_textures);
3132                 numsurfacesfortexture[t]++;
3133         }
3134         j = 0;
3135         for (t = 0;t < mod->num_textures;t++)
3136         {
3137                 firstsurfacefortexture[t] = j;
3138                 j += numsurfacesfortexture[t];
3139         }
3140         for (j = 0;j < mod->nummodelsurfaces;j++)
3141         {
3142                 const msurface_t *surface = mod->data_surfaces + j + mod->firstmodelsurface;
3143                 t = (int)(surface->texture - mod->data_textures);
3144                 mod->sortedmodelsurfaces[firstsurfacefortexture[t]++] = j + mod->firstmodelsurface;
3145         }
3146         Mem_Free(firstsurfacefortexture);
3147         Mem_Free(numsurfacesfortexture);
3148 }
3149
3150 void Mod_BuildVBOs(void)
3151 {
3152         if (!loadmodel->surfmesh.num_vertices)
3153                 return;
3154
3155         if (gl_paranoid.integer && loadmodel->surfmesh.data_element3s && loadmodel->surfmesh.data_element3i)
3156         {
3157                 int i;
3158                 for (i = 0;i < loadmodel->surfmesh.num_triangles*3;i++)
3159                 {
3160                         if (loadmodel->surfmesh.data_element3s[i] != loadmodel->surfmesh.data_element3i[i])
3161                         {
3162                                 Con_Printf("Mod_BuildVBOs: element %u is incorrect (%u should be %u)\n", i, loadmodel->surfmesh.data_element3s[i], loadmodel->surfmesh.data_element3i[i]);
3163                                 loadmodel->surfmesh.data_element3s[i] = loadmodel->surfmesh.data_element3i[i];
3164                         }
3165                 }
3166         }
3167
3168         // build r_vertexmesh_t array
3169         // (compressed interleaved array for D3D)
3170         if (!loadmodel->surfmesh.data_vertexmesh && vid.useinterleavedarrays)
3171         {
3172                 int vertexindex;
3173                 int numvertices = loadmodel->surfmesh.num_vertices;
3174                 r_vertexmesh_t *vertexmesh;
3175                 loadmodel->surfmesh.data_vertexmesh = vertexmesh = (r_vertexmesh_t*)Mem_Alloc(loadmodel->mempool, numvertices * sizeof(r_vertexmesh_t));
3176                 for (vertexindex = 0;vertexindex < numvertices;vertexindex++, vertexmesh++)
3177                 {
3178                         VectorCopy(loadmodel->surfmesh.data_vertex3f + 3*vertexindex, vertexmesh->vertex3f);
3179                         VectorScale(loadmodel->surfmesh.data_svector3f + 3*vertexindex, 1.0f, vertexmesh->svector3f);
3180                         VectorScale(loadmodel->surfmesh.data_tvector3f + 3*vertexindex, 1.0f, vertexmesh->tvector3f);
3181                         VectorScale(loadmodel->surfmesh.data_normal3f + 3*vertexindex, 1.0f, vertexmesh->normal3f);
3182                         if (loadmodel->surfmesh.data_lightmapcolor4f)
3183                                 Vector4Copy(loadmodel->surfmesh.data_lightmapcolor4f + 4*vertexindex, vertexmesh->color4f);
3184                         Vector2Copy(loadmodel->surfmesh.data_texcoordtexture2f + 2*vertexindex, vertexmesh->texcoordtexture2f);
3185                         if (loadmodel->surfmesh.data_texcoordlightmap2f)
3186                                 Vector2Scale(loadmodel->surfmesh.data_texcoordlightmap2f + 2*vertexindex, 1.0f, vertexmesh->texcoordlightmap2f);
3187                         if (loadmodel->surfmesh.data_skeletalindex4ub)
3188                                 Vector4Copy(loadmodel->surfmesh.data_skeletalindex4ub + 4*vertexindex, vertexmesh->skeletalindex4ub);
3189                         if (loadmodel->surfmesh.data_skeletalweight4ub)
3190                                 Vector4Copy(loadmodel->surfmesh.data_skeletalweight4ub + 4*vertexindex, vertexmesh->skeletalweight4ub);
3191                 }
3192         }
3193
3194         // upload short indices as a buffer
3195         if (loadmodel->surfmesh.data_element3s && !loadmodel->surfmesh.data_element3s_indexbuffer)
3196                 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);
3197
3198         // upload int indices as a buffer
3199         if (loadmodel->surfmesh.data_element3i && !loadmodel->surfmesh.data_element3i_indexbuffer && !loadmodel->surfmesh.data_element3s)
3200                 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);
3201
3202         // only build a vbo if one has not already been created (this is important for brush models which load specially)
3203         // vertex buffer is several arrays and we put them in the same buffer
3204         //
3205         // is this wise?  the texcoordtexture2f array is used with dynamic
3206         // vertex/svector/tvector/normal when rendering animated models, on the
3207         // other hand animated models don't use a lot of vertices anyway...
3208         if (!loadmodel->surfmesh.vbo_vertexbuffer && !vid.useinterleavedarrays)
3209         {
3210                 int size;
3211                 unsigned char *mem;
3212                 size = 0;
3213                 loadmodel->surfmesh.vbooffset_vertexmesh         = size;if (loadmodel->surfmesh.data_vertexmesh        ) size += loadmodel->surfmesh.num_vertices * sizeof(r_vertexmesh_t);
3214                 loadmodel->surfmesh.vbooffset_vertex3f           = size;if (loadmodel->surfmesh.data_vertex3f          ) size += loadmodel->surfmesh.num_vertices * sizeof(float[3]);
3215                 loadmodel->surfmesh.vbooffset_svector3f          = size;if (loadmodel->surfmesh.data_svector3f         ) size += loadmodel->surfmesh.num_vertices * sizeof(float[3]);
3216                 loadmodel->surfmesh.vbooffset_tvector3f          = size;if (loadmodel->surfmesh.data_tvector3f         ) size += loadmodel->surfmesh.num_vertices * sizeof(float[3]);
3217                 loadmodel->surfmesh.vbooffset_normal3f           = size;if (loadmodel->surfmesh.data_normal3f          ) size += loadmodel->surfmesh.num_vertices * sizeof(float[3]);
3218                 loadmodel->surfmesh.vbooffset_texcoordtexture2f  = size;if (loadmodel->surfmesh.data_texcoordtexture2f ) size += loadmodel->surfmesh.num_vertices * sizeof(float[2]);
3219                 loadmodel->surfmesh.vbooffset_texcoordlightmap2f = size;if (loadmodel->surfmesh.data_texcoordlightmap2f) size += loadmodel->surfmesh.num_vertices * sizeof(float[2]);
3220                 loadmodel->surfmesh.vbooffset_lightmapcolor4f    = size;if (loadmodel->surfmesh.data_lightmapcolor4f   ) size += loadmodel->surfmesh.num_vertices * sizeof(float[4]);
3221                 loadmodel->surfmesh.vbooffset_skeletalindex4ub   = size;if (loadmodel->surfmesh.data_skeletalindex4ub  ) size += loadmodel->surfmesh.num_vertices * sizeof(unsigned char[4]);
3222                 loadmodel->surfmesh.vbooffset_skeletalweight4ub  = size;if (loadmodel->surfmesh.data_skeletalweight4ub ) size += loadmodel->surfmesh.num_vertices * sizeof(unsigned char[4]);
3223                 mem = (unsigned char *)Mem_Alloc(tempmempool, size);
3224                 if (loadmodel->surfmesh.data_vertexmesh        ) memcpy(mem + loadmodel->surfmesh.vbooffset_vertexmesh        , loadmodel->surfmesh.data_vertexmesh        , loadmodel->surfmesh.num_vertices * sizeof(r_vertexmesh_t));
3225                 if (loadmodel->surfmesh.data_vertex3f          ) memcpy(mem + loadmodel->surfmesh.vbooffset_vertex3f          , loadmodel->surfmesh.data_vertex3f          , loadmodel->surfmesh.num_vertices * sizeof(float[3]));
3226                 if (loadmodel->surfmesh.data_svector3f         ) memcpy(mem + loadmodel->surfmesh.vbooffset_svector3f         , loadmodel->surfmesh.data_svector3f         , loadmodel->surfmesh.num_vertices * sizeof(float[3]));
3227                 if (loadmodel->surfmesh.data_tvector3f         ) memcpy(mem + loadmodel->surfmesh.vbooffset_tvector3f         , loadmodel->surfmesh.data_tvector3f         , loadmodel->surfmesh.num_vertices * sizeof(float[3]));
3228                 if (loadmodel->surfmesh.data_normal3f          ) memcpy(mem + loadmodel->surfmesh.vbooffset_normal3f          , loadmodel->surfmesh.data_normal3f          , loadmodel->surfmesh.num_vertices * sizeof(float[3]));
3229                 if (loadmodel->surfmesh.data_texcoordtexture2f ) memcpy(mem + loadmodel->surfmesh.vbooffset_texcoordtexture2f , loadmodel->surfmesh.data_texcoordtexture2f , loadmodel->surfmesh.num_vertices * sizeof(float[2]));
3230                 if (loadmodel->surfmesh.data_texcoordlightmap2f) memcpy(mem + loadmodel->surfmesh.vbooffset_texcoordlightmap2f, loadmodel->surfmesh.data_texcoordlightmap2f, loadmodel->surfmesh.num_vertices * sizeof(float[2]));
3231                 if (loadmodel->surfmesh.data_lightmapcolor4f   ) memcpy(mem + loadmodel->surfmesh.vbooffset_lightmapcolor4f   , loadmodel->surfmesh.data_lightmapcolor4f   , loadmodel->surfmesh.num_vertices * sizeof(float[4]));
3232                 if (loadmodel->surfmesh.data_skeletalindex4ub  ) memcpy(mem + loadmodel->surfmesh.vbooffset_skeletalindex4ub  , loadmodel->surfmesh.data_skeletalindex4ub  , loadmodel->surfmesh.num_vertices * sizeof(unsigned char[4]));
3233                 if (loadmodel->surfmesh.data_skeletalweight4ub ) memcpy(mem + loadmodel->surfmesh.vbooffset_skeletalweight4ub , loadmodel->surfmesh.data_skeletalweight4ub , loadmodel->surfmesh.num_vertices * sizeof(unsigned char[4]));
3234                 loadmodel->surfmesh.vbo_vertexbuffer = R_Mesh_CreateMeshBuffer(mem, size, loadmodel->name, false, false, false, false);
3235                 Mem_Free(mem);
3236         }
3237 }
3238
3239 extern cvar_t mod_obj_orientation;
3240 static void Mod_Decompile_OBJ(dp_model_t *model, const char *filename, const char *mtlfilename, const char *originalfilename)
3241 {
3242         int submodelindex, vertexindex, surfaceindex, triangleindex, textureindex, countvertices = 0, countsurfaces = 0, countfaces = 0, counttextures = 0;
3243         int a, b, c;
3244         const char *texname;
3245         const int *e;
3246         const float *v, *vn, *vt;
3247         size_t l;
3248         size_t outbufferpos = 0;
3249         size_t outbuffermax = 0x100000;
3250         char *outbuffer = (char *) Z_Malloc(outbuffermax), *oldbuffer;
3251         const msurface_t *surface;
3252         const int maxtextures = 256;
3253         char *texturenames = (char *) Z_Malloc(maxtextures * MAX_QPATH);
3254         dp_model_t *submodel;
3255
3256         // construct the mtllib file
3257         l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "# mtllib for %s exported by darkplaces engine\n", originalfilename);
3258         if (l > 0)
3259                 outbufferpos += l;
3260         for (surfaceindex = 0, surface = model->data_surfaces;surfaceindex < model->num_surfaces;surfaceindex++, surface++)
3261         {
3262                 countsurfaces++;
3263                 countvertices += surface->num_vertices;
3264                 countfaces += surface->num_triangles;
3265                 texname = (surface->texture && surface->texture->name[0]) ? surface->texture->name : "default";
3266                 for (textureindex = 0;textureindex < counttextures;textureindex++)
3267                         if (!strcmp(texturenames + textureindex * MAX_QPATH, texname))
3268                                 break;
3269                 if (textureindex < counttextures)
3270                         continue; // already wrote this material entry
3271                 if (textureindex >= maxtextures)
3272                         continue; // just a precaution
3273                 textureindex = counttextures++;
3274                 strlcpy(texturenames + textureindex * MAX_QPATH, texname, MAX_QPATH);
3275                 if (outbufferpos >= outbuffermax >> 1)
3276                 {
3277                         outbuffermax *= 2;
3278                         oldbuffer = outbuffer;
3279                         outbuffer = (char *) Z_Malloc(outbuffermax);
3280                         memcpy(outbuffer, oldbuffer, outbufferpos);
3281                         Z_Free(oldbuffer);
3282                 }
3283                 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");
3284                 if (l > 0)
3285                         outbufferpos += l;
3286         }
3287
3288         // write the mtllib file
3289         FS_WriteFile(mtlfilename, outbuffer, outbufferpos);
3290
3291         // construct the obj file
3292         outbufferpos = 0;
3293         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);
3294         if (l > 0)
3295                 outbufferpos += l;
3296
3297         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)
3298         {
3299                 if (outbufferpos >= outbuffermax >> 1)
3300                 {
3301                         outbuffermax *= 2;
3302                         oldbuffer = outbuffer;
3303                         outbuffer = (char *) Z_Malloc(outbuffermax);
3304                         memcpy(outbuffer, oldbuffer, outbufferpos);
3305                         Z_Free(oldbuffer);
3306                 }
3307                 if(mod_obj_orientation.integer)
3308                         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]);
3309                 else
3310                         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]);
3311                 if (l > 0)
3312                         outbufferpos += l;
3313         }
3314
3315         for (submodelindex = 0;submodelindex < max(1, model->brush.numsubmodels);submodelindex++)
3316         {
3317                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "o %i\n", submodelindex);
3318                 if (l > 0)
3319                         outbufferpos += l;
3320                 submodel = model->brush.numsubmodels ? model->brush.submodels[submodelindex] : model;
3321                 for (surfaceindex = 0;surfaceindex < submodel->nummodelsurfaces;surfaceindex++)
3322                 {
3323                         surface = model->data_surfaces + submodel->sortedmodelsurfaces[surfaceindex];
3324                         l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "usemtl %s\n", (surface->texture && surface->texture->name[0]) ? surface->texture->name : "default");
3325                         if (l > 0)
3326                                 outbufferpos += l;
3327                         for (triangleindex = 0, e = model->surfmesh.data_element3i + surface->num_firsttriangle * 3;triangleindex < surface->num_triangles;triangleindex++, e += 3)
3328                         {
3329                                 if (outbufferpos >= outbuffermax >> 1)
3330                                 {
3331                                         outbuffermax *= 2;
3332                                         oldbuffer = outbuffer;
3333                                         outbuffer = (char *) Z_Malloc(outbuffermax);
3334                                         memcpy(outbuffer, oldbuffer, outbufferpos);
3335                                         Z_Free(oldbuffer);
3336                                 }
3337                                 a = e[0]+1;
3338                                 b = e[1]+1;
3339                                 c = e[2]+1;
3340                                 if(mod_obj_orientation.integer)
3341                                         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);
3342                                 else
3343                                         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);
3344                                 if (l > 0)
3345                                         outbufferpos += l;
3346                         }
3347                 }
3348         }
3349
3350         // write the obj file
3351         FS_WriteFile(filename, outbuffer, outbufferpos);
3352
3353         // clean up
3354         Z_Free(outbuffer);
3355         Z_Free(texturenames);
3356
3357         // print some stats
3358         Con_Printf("Wrote %s (%i bytes, %i vertices, %i faces, %i surfaces with %i distinct textures)\n", filename, (int)outbufferpos, countvertices, countfaces, countsurfaces, counttextures);
3359 }
3360
3361 static void Mod_Decompile_SMD(dp_model_t *model, const char *filename, int firstpose, int numposes, qboolean writetriangles)
3362 {
3363         int countnodes = 0, counttriangles = 0, countframes = 0;
3364         int surfaceindex;
3365         int triangleindex;
3366         int transformindex;
3367         int poseindex;
3368         int cornerindex;
3369         const int *e;
3370         size_t l;
3371         size_t outbufferpos = 0;
3372         size_t outbuffermax = 0x100000;
3373         char *outbuffer = (char *) Z_Malloc(outbuffermax), *oldbuffer;
3374         const msurface_t *surface;
3375         l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "version 1\nnodes\n");
3376         if (l > 0)
3377                 outbufferpos += l;
3378         for (transformindex = 0;transformindex < model->num_bones;transformindex++)
3379         {
3380                 if (outbufferpos >= outbuffermax >> 1)
3381                 {
3382                         outbuffermax *= 2;
3383                         oldbuffer = outbuffer;
3384                         outbuffer = (char *) Z_Malloc(outbuffermax);
3385                         memcpy(outbuffer, oldbuffer, outbufferpos);
3386                         Z_Free(oldbuffer);
3387                 }
3388                 countnodes++;
3389                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "%3i \"%s\" %3i\n", transformindex, model->data_bones[transformindex].name, model->data_bones[transformindex].parent);
3390                 if (l > 0)
3391                         outbufferpos += l;
3392         }
3393         l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "end\nskeleton\n");
3394         if (l > 0)
3395                 outbufferpos += l;
3396         for (poseindex = 0;poseindex < numposes;poseindex++)
3397         {
3398                 countframes++;
3399                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "time %i\n", poseindex);
3400                 if (l > 0)
3401                         outbufferpos += l;
3402                 for (transformindex = 0;transformindex < model->num_bones;transformindex++)
3403                 {
3404                         float angles[3];
3405                         float mtest[4][3];
3406                         matrix4x4_t posematrix;
3407                         if (outbufferpos >= outbuffermax >> 1)
3408                         {
3409                                 outbuffermax *= 2;
3410                                 oldbuffer = outbuffer;
3411                                 outbuffer = (char *) Z_Malloc(outbuffermax);
3412                                 memcpy(outbuffer, oldbuffer, outbufferpos);
3413                                 Z_Free(oldbuffer);
3414                         }
3415
3416                         // strangely the smd angles are for a transposed matrix, so we
3417                         // have to generate a transposed matrix, then convert that...
3418                         Matrix4x4_FromBonePose7s(&posematrix, model->num_posescale, model->data_poses7s + 7*(model->num_bones * poseindex + transformindex));
3419                         Matrix4x4_ToArray12FloatGL(&posematrix, mtest[0]);
3420                         AnglesFromVectors(angles, mtest[0], mtest[2], false);
3421                         if (angles[0] >= 180) angles[0] -= 360;
3422                         if (angles[1] >= 180) angles[1] -= 360;
3423                         if (angles[2] >= 180) angles[2] -= 360;
3424
3425 #if 0
3426 {
3427                         float a = DEG2RAD(angles[ROLL]);
3428                         float b = DEG2RAD(angles[PITCH]);
3429                         float c = DEG2RAD(angles[YAW]);
3430                         float cy, sy, cp, sp, cr, sr;
3431                         float test[4][3];
3432                         // smd matrix construction, for comparing
3433                         sy = sin(c);
3434                         cy = cos(c);
3435                         sp = sin(b);
3436                         cp = cos(b);
3437                         sr = sin(a);
3438                         cr = cos(a);
3439
3440                         test[0][0] = cp*cy;
3441                         test[0][1] = cp*sy;
3442                         test[0][2] = -sp;
3443                         test[1][0] = sr*sp*cy+cr*-sy;
3444                         test[1][1] = sr*sp*sy+cr*cy;
3445                         test[1][2] = sr*cp;
3446                         test[2][0] = (cr*sp*cy+-sr*-sy);
3447                         test[2][1] = (cr*sp*sy+-sr*cy);
3448                         test[2][2] = cr*cp;
3449                         test[3][0] = pose[9];
3450                         test[3][1] = pose[10];
3451                         test[3][2] = pose[11];
3452 }
3453 #endif
3454                         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]));
3455                         if (l > 0)
3456                                 outbufferpos += l;
3457                 }
3458         }
3459         l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "end\n");
3460         if (l > 0)
3461                 outbufferpos += l;
3462         if (writetriangles)
3463         {
3464                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "triangles\n");
3465                 if (l > 0)
3466                         outbufferpos += l;
3467                 for (surfaceindex = 0, surface = model->data_surfaces;surfaceindex < model->num_surfaces;surfaceindex++, surface++)
3468                 {
3469                         for (triangleindex = 0, e = model->surfmesh.data_element3i + surface->num_firsttriangle * 3;triangleindex < surface->num_triangles;triangleindex++, e += 3)
3470                         {
3471                                 counttriangles++;
3472                                 if (outbufferpos >= outbuffermax >> 1)
3473                                 {
3474                                         outbuffermax *= 2;
3475                                         oldbuffer = outbuffer;
3476                                         outbuffer = (char *) Z_Malloc(outbuffermax);
3477                                         memcpy(outbuffer, oldbuffer, outbufferpos);
3478                                         Z_Free(oldbuffer);
3479                                 }
3480                                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "%s\n", surface->texture && surface->texture->name[0] ? surface->texture->name : "default.bmp");
3481                                 if (l > 0)
3482                                         outbufferpos += l;
3483                                 for (cornerindex = 0;cornerindex < 3;cornerindex++)
3484                                 {
3485                                         const int index = e[2-cornerindex];
3486                                         const float *v = model->surfmesh.data_vertex3f + index * 3;
3487                                         const float *vn = model->surfmesh.data_normal3f + index * 3;
3488                                         const float *vt = model->surfmesh.data_texcoordtexture2f + index * 2;
3489                                         const int b = model->surfmesh.blends[index];
3490                                         if (b < model->num_bones)
3491                                                 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]);
3492                                         else
3493                                         {
3494                                                 const blendweights_t *w = model->surfmesh.data_blendweights + b - model->num_bones;
3495                                                 const unsigned char *wi = w->index;
3496                                                 const unsigned char *wf = w->influence;
3497                                             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);
3498                                                 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);
3499                                                 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);
3500                                                 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]);
3501                                         }
3502                                         if (l > 0)
3503                                                 outbufferpos += l;
3504                                 }
3505                         }
3506                 }
3507                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "end\n");
3508                 if (l > 0)
3509                         outbufferpos += l;
3510         }
3511
3512         FS_WriteFile(filename, outbuffer, outbufferpos);
3513         Z_Free(outbuffer);
3514
3515         Con_Printf("Wrote %s (%i bytes, %i nodes, %i frames, %i triangles)\n", filename, (int)outbufferpos, countnodes, countframes, counttriangles);
3516 }
3517
3518 /*
3519 ================
3520 Mod_Decompile_f
3521
3522 decompiles a model to editable files
3523 ================
3524 */
3525 static void Mod_Decompile_f(void)
3526 {
3527         int i, j, k, l, first, count;
3528         dp_model_t *mod;
3529         char inname[MAX_QPATH];
3530         char outname[MAX_QPATH];
3531         char mtlname[MAX_QPATH];
3532         char basename[MAX_QPATH];
3533         char animname[MAX_QPATH];
3534         char animname2[MAX_QPATH];
3535         char zymtextbuffer[16384];
3536         char dpmtextbuffer[16384];
3537         char framegroupstextbuffer[16384];
3538         int zymtextsize = 0;
3539         int dpmtextsize = 0;
3540         int framegroupstextsize = 0;
3541         char vabuf[1024];
3542
3543         if (Cmd_Argc() != 2)
3544         {
3545                 Con_Print("usage: modeldecompile <filename>\n");
3546                 return;
3547         }
3548
3549         strlcpy(inname, Cmd_Argv(1), sizeof(inname));
3550         FS_StripExtension(inname, basename, sizeof(basename));
3551
3552         mod = Mod_ForName(inname, false, true, inname[0] == '*' ? cl.model_name[1] : NULL);
3553         if (!mod)
3554         {
3555                 Con_Print("No such model\n");
3556                 return;
3557         }
3558         if (mod->brush.submodel)
3559         {
3560                 // if we're decompiling a submodel, be sure to give it a proper name based on its parent
3561                 FS_StripExtension(cl.model_name[1], outname, sizeof(outname));
3562                 dpsnprintf(basename, sizeof(basename), "%s/%s", outname, mod->name);
3563                 outname[0] = 0;
3564         }
3565         if (!mod->surfmesh.num_triangles)
3566         {
3567                 Con_Print("Empty model (or sprite)\n");
3568                 return;
3569         }
3570
3571         // export OBJ if possible (not on sprites)
3572         if (mod->surfmesh.num_triangles)
3573         {
3574                 dpsnprintf(outname, sizeof(outname), "%s_decompiled.obj", basename);
3575                 dpsnprintf(mtlname, sizeof(mtlname), "%s_decompiled.mtl", basename);
3576                 Mod_Decompile_OBJ(mod, outname, mtlname, inname);
3577         }
3578
3579         // export SMD if possible (only for skeletal models)
3580         if (mod->surfmesh.num_triangles && mod->num_bones)
3581         {
3582                 dpsnprintf(outname, sizeof(outname), "%s_decompiled/ref1.smd", basename);
3583                 Mod_Decompile_SMD(mod, outname, 0, 1, true);
3584                 l = dpsnprintf(zymtextbuffer + zymtextsize, sizeof(zymtextbuffer) - zymtextsize, "output out.zym\nscale 1\norigin 0 0 0\nmesh ref1.smd\n");
3585                 if (l > 0) zymtextsize += l;
3586                 l = dpsnprintf(dpmtextbuffer + dpmtextsize, sizeof(dpmtextbuffer) - dpmtextsize, "outputdir .\nmodel out\nscale 1\norigin 0 0 0\nscene ref1.smd\n");
3587                 if (l > 0) dpmtextsize += l;
3588                 for (i = 0;i < mod->numframes;i = j)
3589                 {
3590                         strlcpy(animname, mod->animscenes[i].name, sizeof(animname));
3591                         first = mod->animscenes[i].firstframe;
3592                         if (mod->animscenes[i].framecount > 1)
3593                         {
3594                                 // framegroup anim
3595                                 count = mod->animscenes[i].framecount;
3596                                 j = i + 1;
3597                         }
3598                         else
3599                         {
3600                                 // individual frame
3601                                 // check for additional frames with same name
3602                                 for (l = 0, k = (int)strlen(animname);animname[l];l++)
3603                                         if(animname[l] < '0' || animname[l] > '9')
3604                                                 k = l + 1;
3605                                 if(k > 0 && animname[k-1] == '_')
3606                                         --k;
3607                                 animname[k] = 0;
3608                                 count = mod->num_poses - first;
3609                                 for (j = i + 1;j < mod->numframes;j++)
3610                                 {
3611                                         strlcpy(animname2, mod->animscenes[j].name, sizeof(animname2));
3612                                         for (l = 0, k = (int)strlen(animname2);animname2[l];l++)
3613                                                 if(animname2[l] < '0' || animname2[l] > '9')
3614                                                         k = l + 1;
3615                                         if(k > 0 && animname[k-1] == '_')
3616                                                 --k;
3617                                         animname2[k] = 0;
3618                                         if (strcmp(animname2, animname) || mod->animscenes[j].framecount > 1)
3619                                         {
3620                                                 count = mod->animscenes[j].firstframe - first;
3621                                                 break;
3622                                         }
3623                                 }
3624                                 // if it's only one frame, use the original frame name
3625                                 if (j == i + 1)
3626                                         strlcpy(animname, mod->animscenes[i].name, sizeof(animname));
3627
3628                         }
3629                         dpsnprintf(outname, sizeof(outname), "%s_decompiled/%s.smd", basename, animname);
3630                         Mod_Decompile_SMD(mod, outname, first, count, false);
3631                         if (zymtextsize < (int)sizeof(zymtextbuffer) - 100)
3632                         {
3633                                 l = dpsnprintf(zymtextbuffer + zymtextsize, sizeof(zymtextbuffer) - zymtextsize, "scene %s.smd fps %g %s\n", animname, mod->animscenes[i].framerate, mod->animscenes[i].loop ? "" : " noloop");
3634                                 if (l > 0) zymtextsize += l;
3635                         }
3636                         if (dpmtextsize < (int)sizeof(dpmtextbuffer) - 100)
3637                         {
3638                                 l = dpsnprintf(dpmtextbuffer + dpmtextsize, sizeof(dpmtextbuffer) - dpmtextsize, "scene %s.smd fps %g %s\n", animname, mod->animscenes[i].framerate, mod->animscenes[i].loop ? "" : " noloop");
3639                                 if (l > 0) dpmtextsize += l;
3640                         }
3641                         if (framegroupstextsize < (int)sizeof(framegroupstextbuffer) - 100)
3642                         {
3643                                 l = dpsnprintf(framegroupstextbuffer + framegroupstextsize, sizeof(framegroupstextbuffer) - framegroupstextsize, "%d %d %f %d // %s\n", first, count, mod->animscenes[i].framerate, mod->animscenes[i].loop, animname);
3644                                 if (l > 0) framegroupstextsize += l;
3645                         }
3646                 }
3647                 if (zymtextsize)
3648                         FS_WriteFile(va(vabuf, sizeof(vabuf), "%s_decompiled/out_zym.txt", basename), zymtextbuffer, (fs_offset_t)zymtextsize);
3649                 if (dpmtextsize)
3650                         FS_WriteFile(va(vabuf, sizeof(vabuf), "%s_decompiled/out_dpm.txt", basename), dpmtextbuffer, (fs_offset_t)dpmtextsize);
3651                 if (framegroupstextsize)
3652                         FS_WriteFile(va(vabuf, sizeof(vabuf), "%s_decompiled.framegroups", basename), framegroupstextbuffer, (fs_offset_t)framegroupstextsize);
3653         }
3654 }
3655
3656 void Mod_AllocLightmap_Init(mod_alloclightmap_state_t *state, mempool_t *mempool, int width, int height)
3657 {
3658         int y;
3659         memset(state, 0, sizeof(*state));
3660         state->width = width;
3661         state->height = height;
3662         state->currentY = 0;
3663         state->rows = (mod_alloclightmap_row_t *)Mem_Alloc(mempool, state->height * sizeof(*state->rows));
3664         for (y = 0;y < state->height;y++)
3665         {
3666                 state->rows[y].currentX = 0;
3667                 state->rows[y].rowY = -1;
3668         }
3669 }
3670
3671 void Mod_AllocLightmap_Reset(mod_alloclightmap_state_t *state)
3672 {
3673         int y;
3674         state->currentY = 0;
3675         for (y = 0;y < state->height;y++)
3676         {
3677                 state->rows[y].currentX = 0;
3678                 state->rows[y].rowY = -1;
3679         }
3680 }
3681
3682 void Mod_AllocLightmap_Free(mod_alloclightmap_state_t *state)
3683 {
3684         if (state->rows)
3685                 Mem_Free(state->rows);
3686         memset(state, 0, sizeof(*state));
3687 }
3688
3689 qboolean Mod_AllocLightmap_Block(mod_alloclightmap_state_t *state, int blockwidth, int blockheight, int *outx, int *outy)
3690 {
3691         mod_alloclightmap_row_t *row;
3692         int y;
3693
3694         row = state->rows + blockheight;
3695         if ((row->rowY < 0) || (row->currentX + blockwidth > state->width))
3696         {
3697                 if (state->currentY + blockheight <= state->height)
3698                 {
3699                         // use the current allocation position
3700                         row->rowY = state->currentY;
3701                         row->currentX = 0;
3702                         state->currentY += blockheight;
3703                 }
3704                 else
3705                 {
3706                         // find another position
3707                         for (y = blockheight;y < state->height;y++)
3708                         {
3709                                 if ((state->rows[y].rowY >= 0) && (state->rows[y].currentX + blockwidth <= state->width))
3710                                 {
3711                                         row = state->rows + y;
3712                                         break;
3713                                 }
3714                         }
3715                         if (y == state->height)
3716                                 return false;
3717                 }
3718         }
3719         *outy = row->rowY;
3720         *outx = row->currentX;
3721         row->currentX += blockwidth;
3722
3723         return true;
3724 }
3725
3726 typedef struct lightmapsample_s
3727 {
3728         float pos[3];
3729         float sh1[4][3];
3730         float *vertex_color;
3731         unsigned char *lm_bgr;
3732         unsigned char *lm_dir;
3733 }
3734 lightmapsample_t;
3735
3736 typedef struct lightmapvertex_s
3737 {
3738         int index;
3739         float pos[3];
3740         float normal[3];
3741         float texcoordbase[2];
3742         float texcoordlightmap[2];
3743         float lightcolor[4];
3744 }
3745 lightmapvertex_t;
3746
3747 typedef struct lightmaptriangle_s
3748 {
3749         int triangleindex;
3750         int surfaceindex;
3751         int lightmapindex;
3752         int axis;
3753         int lmoffset[2];
3754         int lmsize[2];
3755         // 2D modelspace coordinates of min corner
3756         // snapped to lightmap grid but not in grid coordinates
3757         float lmbase[2];
3758         // 2D modelspace to lightmap coordinate scale
3759         float lmscale[2];
3760         float vertex[3][3];
3761         float mins[3];
3762         float maxs[3];
3763 }
3764 lightmaptriangle_t;
3765
3766 typedef struct lightmaplight_s
3767 {
3768         float origin[3];
3769         float radius;
3770         float iradius;
3771         float radius2;
3772         float color[3];
3773         svbsp_t svbsp;
3774 }
3775 lightmaplight_t;
3776
3777 lightmaptriangle_t *mod_generatelightmaps_lightmaptriangles;
3778
3779 #define MAX_LIGHTMAPSAMPLES 64
3780 static int mod_generatelightmaps_numoffsets[3];
3781 static float mod_generatelightmaps_offsets[3][MAX_LIGHTMAPSAMPLES][3];
3782
3783 static int mod_generatelightmaps_numlights;
3784 static lightmaplight_t *mod_generatelightmaps_lightinfo;
3785
3786 extern cvar_t r_shadow_lightattenuationdividebias;
3787 extern cvar_t r_shadow_lightattenuationlinearscale;
3788
3789 static void Mod_GenerateLightmaps_LightPoint(dp_model_t *model, const vec3_t pos, vec3_t ambient, vec3_t diffuse, vec3_t lightdir)
3790 {
3791         int i;
3792         int index;
3793         int result;
3794         float relativepoint[3];
3795         float color[3];
3796         float dir[3];
3797         float dist;
3798         float dist2;
3799         float intensity;
3800         float sample[5*3];
3801         float lightorigin[3];
3802         float lightradius;
3803         float lightradius2;
3804         float lightiradius;
3805         float lightcolor[3];
3806         trace_t trace;
3807         for (i = 0;i < 5*3;i++)
3808                 sample[i] = 0.0f;
3809         for (index = 0;;index++)
3810         {
3811                 result = R_Shadow_GetRTLightInfo(index, lightorigin, &lightradius, lightcolor);
3812                 if (result < 0)
3813                         break;
3814                 if (result == 0)
3815                         continue;
3816                 lightradius2 = lightradius * lightradius;
3817                 VectorSubtract(lightorigin, pos, relativepoint);
3818                 dist2 = VectorLength2(relativepoint);
3819                 if (dist2 >= lightradius2)
3820                         continue;
3821                 lightiradius = 1.0f / lightradius;
3822                 dist = sqrt(dist2) * lightiradius;
3823                 intensity = (1.0f - dist) * r_shadow_lightattenuationlinearscale.value / (r_shadow_lightattenuationdividebias.value + dist*dist);
3824                 if (intensity <= 0.0f)
3825                         continue;
3826                 if (model && model->TraceLine)
3827                 {
3828                         model->TraceLine(model, NULL, NULL, &trace, pos, lightorigin, SUPERCONTENTS_SOLID, 0, MATERIALFLAGMASK_TRANSLUCENT | MATERIALFLAG_NOSHADOW);
3829                         if (trace.fraction < 1)
3830                                 continue;
3831                 }
3832                 // scale down intensity to add to both ambient and diffuse
3833                 //intensity *= 0.5f;
3834                 VectorNormalize(relativepoint);
3835                 VectorScale(lightcolor, intensity, color);
3836                 VectorMA(sample    , 0.5f            , color, sample    );
3837                 VectorMA(sample + 3, relativepoint[0], color, sample + 3);
3838                 VectorMA(sample + 6, relativepoint[1], color, sample + 6);
3839                 VectorMA(sample + 9, relativepoint[2], color, sample + 9);
3840                 // calculate a weighted average light direction as well
3841                 intensity *= VectorLength(color);
3842                 VectorMA(sample + 12, intensity, relativepoint, sample + 12);
3843         }
3844         // calculate the direction we'll use to reduce the sample to a directional light source
3845         VectorCopy(sample + 12, dir);
3846         //VectorSet(dir, sample[3] + sample[4] + sample[5], sample[6] + sample[7] + sample[8], sample[9] + sample[10] + sample[11]);
3847         VectorNormalize(dir);
3848         // extract the diffuse color along the chosen direction and scale it
3849         diffuse[0] = (dir[0]*sample[3] + dir[1]*sample[6] + dir[2]*sample[ 9] + sample[ 0]);
3850         diffuse[1] = (dir[0]*sample[4] + dir[1]*sample[7] + dir[2]*sample[10] + sample[ 1]);
3851         diffuse[2] = (dir[0]*sample[5] + dir[1]*sample[8] + dir[2]*sample[11] + sample[ 2]);
3852         // subtract some of diffuse from ambient
3853         VectorMA(sample, -0.333f, diffuse, ambient);
3854         // store the normalized lightdir
3855         VectorCopy(dir, lightdir);
3856 }
3857
3858 static void Mod_GenerateLightmaps_CreateLights_ComputeSVBSP_InsertSurfaces(const dp_model_t *model, svbsp_t *svbsp, const float *mins, const float *maxs)
3859 {
3860         int surfaceindex;
3861         int triangleindex;
3862         const msurface_t *surface;
3863         const float *vertex3f = model->surfmesh.data_vertex3f;
3864         const int *element3i = model->surfmesh.data_element3i;
3865         const int *e;
3866         float v2[3][3];
3867         for (surfaceindex = 0, surface = model->data_surfaces;surfaceindex < model->nummodelsurfaces;surfaceindex++, surface++)
3868         {
3869                 if (!BoxesOverlap(surface->mins, surface->maxs, mins, maxs))
3870                         continue;
3871                 if (surface->texture->basematerialflags & MATERIALFLAG_NOSHADOW)
3872                         continue;
3873                 for (triangleindex = 0, e = element3i + 3*surface->num_firsttriangle;triangleindex < surface->num_triangles;triangleindex++, e += 3)
3874                 {
3875                         VectorCopy(vertex3f + 3*e[0], v2[0]);
3876                         VectorCopy(vertex3f + 3*e[1], v2[1]);
3877                         VectorCopy(vertex3f + 3*e[2], v2[2]);
3878                         SVBSP_AddPolygon(svbsp, 3, v2[0], true, NULL, NULL, 0);
3879                 }
3880         }
3881 }
3882
3883 static void Mod_GenerateLightmaps_CreateLights_ComputeSVBSP(dp_model_t *model, lightmaplight_t *lightinfo)
3884 {
3885         int maxnodes = 1<<14;
3886         svbsp_node_t *nodes;
3887         float origin[3];
3888         float mins[3];
3889         float maxs[3];
3890         svbsp_t svbsp;
3891         VectorSet(mins, lightinfo->origin[0] - lightinfo->radius, lightinfo->origin[1] - lightinfo->radius, lightinfo->origin[2] - lightinfo->radius);
3892         VectorSet(maxs, lightinfo->origin[0] + lightinfo->radius, lightinfo->origin[1] + lightinfo->radius, lightinfo->origin[2] + lightinfo->radius);
3893         VectorCopy(lightinfo->origin, origin);
3894         nodes = (svbsp_node_t *)Mem_Alloc(tempmempool, maxnodes * sizeof(*nodes));
3895         for (;;)
3896         {
3897                 SVBSP_Init(&svbsp, origin, maxnodes, nodes);
3898                 Mod_GenerateLightmaps_CreateLights_ComputeSVBSP_InsertSurfaces(model, &svbsp, mins, maxs);
3899                 if (svbsp.ranoutofnodes)
3900                 {
3901                         maxnodes *= 16;
3902                         if (maxnodes > 1<<22)
3903                         {
3904                                 Mem_Free(nodes);
3905                                 return;
3906                         }
3907                         Mem_Free(nodes);
3908                         nodes = (svbsp_node_t *)Mem_Alloc(tempmempool, maxnodes * sizeof(*nodes));
3909                 }
3910                 else
3911                         break;
3912         }
3913         if (svbsp.numnodes > 0)
3914         {
3915                 svbsp.nodes = (svbsp_node_t *)Mem_Alloc(tempmempool, svbsp.numnodes * sizeof(*nodes));
3916                 memcpy(svbsp.nodes, nodes, svbsp.numnodes * sizeof(*nodes));
3917                 lightinfo->svbsp = svbsp;
3918         }
3919         Mem_Free(nodes);
3920 }
3921
3922 static void Mod_GenerateLightmaps_CreateLights(dp_model_t *model)
3923 {
3924         int index;
3925         int result;
3926         lightmaplight_t *lightinfo;
3927         float origin[3];
3928         float radius;
3929         float color[3];
3930         mod_generatelightmaps_numlights = 0;
3931         for (index = 0;;index++)
3932         {
3933                 result = R_Shadow_GetRTLightInfo(index, origin, &radius, color);
3934                 if (result < 0)
3935                         break;
3936                 if (result > 0)
3937                         mod_generatelightmaps_numlights++;
3938         }
3939         if (mod_generatelightmaps_numlights > 0)
3940         {
3941                 mod_generatelightmaps_lightinfo = (lightmaplight_t *)Mem_Alloc(tempmempool, mod_generatelightmaps_numlights * sizeof(*mod_generatelightmaps_lightinfo));
3942                 lightinfo = mod_generatelightmaps_lightinfo;
3943                 for (index = 0;;index++)
3944                 {
3945                         result = R_Shadow_GetRTLightInfo(index, lightinfo->origin, &lightinfo->radius, lightinfo->color);
3946                         if (result < 0)
3947                                 break;
3948                         if (result > 0)
3949                                 lightinfo++;
3950                 }
3951         }
3952         for (index = 0, lightinfo = mod_generatelightmaps_lightinfo;index < mod_generatelightmaps_numlights;index++, lightinfo++)
3953         {
3954                 lightinfo->iradius = 1.0f / lightinfo->radius;
3955                 lightinfo->radius2 = lightinfo->radius * lightinfo->radius;
3956                 // TODO: compute svbsp
3957                 Mod_GenerateLightmaps_CreateLights_ComputeSVBSP(model, lightinfo);
3958         }
3959 }
3960
3961 static void Mod_GenerateLightmaps_DestroyLights(dp_model_t *model)
3962 {
3963         int i;
3964         if (mod_generatelightmaps_lightinfo)
3965         {
3966                 for (i = 0;i < mod_generatelightmaps_numlights;i++)
3967                         if (mod_generatelightmaps_lightinfo[i].svbsp.nodes)
3968                                 Mem_Free(mod_generatelightmaps_lightinfo[i].svbsp.nodes);
3969                 Mem_Free(mod_generatelightmaps_lightinfo);
3970         }
3971         mod_generatelightmaps_lightinfo = NULL;
3972         mod_generatelightmaps_numlights = 0;
3973 }
3974
3975 static qboolean Mod_GenerateLightmaps_SamplePoint_SVBSP(const svbsp_t *svbsp, const float *pos)
3976 {
3977         const svbsp_node_t *node;
3978         const svbsp_node_t *nodes = svbsp->nodes;
3979         int num = 0;
3980         while (num >= 0)
3981         {
3982                 node = nodes + num;
3983                 num = node->children[DotProduct(node->plane, pos) < node->plane[3]];
3984         }
3985         return num == -1; // true if empty, false if solid (shadowed)
3986 }
3987
3988 static void Mod_GenerateLightmaps_SamplePoint(const float *pos, const float *normal, float *sample, int numoffsets, const float *offsets)
3989 {
3990         int i;
3991         float relativepoint[3];
3992         float color[3];
3993         float offsetpos[3];
3994         float dist;
3995         float dist2;
3996         float intensity;
3997         int offsetindex;
3998         int hits;
3999         int tests;
4000         const lightmaplight_t *lightinfo;
4001         trace_t trace;
4002         for (i = 0;i < 5*3;i++)
4003                 sample[i] = 0.0f;
4004         for (i = 0, lightinfo = mod_generatelightmaps_lightinfo;i < mod_generatelightmaps_numlights;i++, lightinfo++)
4005         {
4006                 //R_SampleRTLights(pos, sample, numoffsets, offsets);
4007                 VectorSubtract(lightinfo->origin, pos, relativepoint);
4008                 // don't accept light from behind a surface, it causes bad shading
4009                 if (normal && DotProduct(relativepoint, normal) <= 0)
4010                         continue;
4011                 dist2 = VectorLength2(relativepoint);
4012                 if (dist2 >= lightinfo->radius2)
4013                         continue;
4014                 dist = sqrt(dist2) * lightinfo->iradius;
4015                 intensity = dist < 1 ? ((1.0f - dist) * r_shadow_lightattenuationlinearscale.value / (r_shadow_lightattenuationdividebias.value + dist*dist)) : 0;
4016                 if (intensity <= 0)
4017                         continue;
4018                 if (cl.worldmodel && cl.worldmodel->TraceLine && numoffsets > 0)
4019                 {
4020                         hits = 0;
4021                         tests = 1;
4022                         if (Mod_GenerateLightmaps_SamplePoint_SVBSP(&lightinfo->svbsp, pos))
4023                                 hits++;
4024                         for (offsetindex = 1;offsetindex < numoffsets;offsetindex++)
4025                         {
4026                                 VectorAdd(pos, offsets + 3*offsetindex, offsetpos);
4027                                 if (!normal)
4028                                 {
4029                                         // for light grid we'd better check visibility of the offset point
4030                                         cl.worldmodel->TraceLine(cl.worldmodel, NULL, NULL, &trace, pos, offsetpos, SUPERCONTENTS_SOLID, 0, MATERIALFLAGMASK_TRANSLUCENT | MATERIALFLAG_NOSHADOW);
4031                                         if (trace.fraction < 1)
4032                                                 VectorLerp(pos, trace.fraction, offsetpos, offsetpos);
4033                                 }
4034                                 tests++;
4035                                 if (Mod_GenerateLightmaps_SamplePoint_SVBSP(&lightinfo->svbsp, offsetpos))
4036                                         hits++;
4037                         }
4038                         if (!hits)
4039                                 continue;
4040                         // scale intensity according to how many rays succeeded
4041                         // we know one test is valid, half of the rest will fail...
4042                         //if (normal && tests > 1)
4043                         //      intensity *= (tests - 1.0f) / tests;
4044                         intensity *= (float)hits / tests;
4045                 }
4046                 // scale down intensity to add to both ambient and diffuse
4047                 //intensity *= 0.5f;
4048                 VectorNormalize(relativepoint);
4049                 VectorScale(lightinfo->color, intensity, color);
4050                 VectorMA(sample    , 0.5f            , color, sample    );
4051                 VectorMA(sample + 3, relativepoint[0], color, sample + 3);
4052                 VectorMA(sample + 6, relativepoint[1], color, sample + 6);
4053                 VectorMA(sample + 9, relativepoint[2], color, sample + 9);
4054                 // calculate a weighted average light direction as well
4055                 intensity *= VectorLength(color);
4056                 VectorMA(sample + 12, intensity, relativepoint, sample + 12);
4057         }
4058 }
4059
4060 static void Mod_GenerateLightmaps_LightmapSample(const float *pos, const float *normal, unsigned char *lm_bgr, unsigned char *lm_dir)
4061 {
4062         float sample[5*3];
4063         float color[3];
4064         float dir[3];
4065         float f;
4066         Mod_GenerateLightmaps_SamplePoint(pos, normal, sample, mod_generatelightmaps_numoffsets[0], mod_generatelightmaps_offsets[0][0]);
4067         //VectorSet(dir, sample[3] + sample[4] + sample[5], sample[6] + sample[7] + sample[8], sample[9] + sample[10] + sample[11]);
4068         VectorCopy(sample + 12, dir);
4069         VectorNormalize(dir);
4070         //VectorAdd(dir, normal, dir);
4071         //VectorNormalize(dir);
4072         f = DotProduct(dir, normal);
4073         f = max(0, f) * 255.0f;
4074         VectorScale(sample, f, color);
4075         //VectorCopy(normal, dir);
4076         VectorSet(dir, (dir[0]+1.0f)*127.5f, (dir[1]+1.0f)*127.5f, (dir[2]+1.0f)*127.5f);
4077         lm_bgr[0] = (unsigned char)bound(0.0f, color[2], 255.0f);
4078         lm_bgr[1] = (unsigned char)bound(0.0f, color[1], 255.0f);
4079         lm_bgr[2] = (unsigned char)bound(0.0f, color[0], 255.0f);
4080         lm_bgr[3] = 255;
4081         lm_dir[0] = (unsigned char)dir[2];
4082         lm_dir[1] = (unsigned char)dir[1];
4083         lm_dir[2] = (unsigned char)dir[0];
4084         lm_dir[3] = 255;
4085 }
4086
4087 static void Mod_GenerateLightmaps_VertexSample(const float *pos, const float *normal, float *vertex_color)
4088 {
4089         float sample[5*3];
4090         Mod_GenerateLightmaps_SamplePoint(pos, normal, sample, mod_generatelightmaps_numoffsets[1], mod_generatelightmaps_offsets[1][0]);
4091         VectorCopy(sample, vertex_color);
4092 }
4093
4094 static void Mod_GenerateLightmaps_GridSample(const float *pos, q3dlightgrid_t *s)
4095 {
4096         float sample[5*3];
4097         float ambient[3];
4098         float diffuse[3];
4099         float dir[3];
4100         Mod_GenerateLightmaps_SamplePoint(pos, NULL, sample, mod_generatelightmaps_numoffsets[2], mod_generatelightmaps_offsets[2][0]);
4101         // calculate the direction we'll use to reduce the sample to a directional light source
4102         VectorCopy(sample + 12, dir);
4103         //VectorSet(dir, sample[3] + sample[4] + sample[5], sample[6] + sample[7] + sample[8], sample[9] + sample[10] + sample[11]);
4104         VectorNormalize(dir);
4105         // extract the diffuse color along the chosen direction and scale it
4106         diffuse[0] = (dir[0]*sample[3] + dir[1]*sample[6] + dir[2]*sample[ 9] + sample[ 0]) * 127.5f;
4107         diffuse[1] = (dir[0]*sample[4] + dir[1]*sample[7] + dir[2]*sample[10] + sample[ 1]) * 127.5f;
4108         diffuse[2] = (dir[0]*sample[5] + dir[1]*sample[8] + dir[2]*sample[11] + sample[ 2]) * 127.5f;
4109         // scale the ambient from 0-2 to 0-255 and subtract some of diffuse
4110         VectorScale(sample, 127.5f, ambient);
4111         VectorMA(ambient, -0.333f, diffuse, ambient);
4112         // encode to the grid format
4113         s->ambientrgb[0] = (unsigned char)bound(0.0f, ambient[0], 255.0f);
4114         s->ambientrgb[1] = (unsigned char)bound(0.0f, ambient[1], 255.0f);
4115         s->ambientrgb[2] = (unsigned char)bound(0.0f, ambient[2], 255.0f);
4116         s->diffusergb[0] = (unsigned char)bound(0.0f, diffuse[0], 255.0f);
4117         s->diffusergb[1] = (unsigned char)bound(0.0f, diffuse[1], 255.0f);
4118         s->diffusergb[2] = (unsigned char)bound(0.0f, diffuse[2], 255.0f);
4119         if (dir[2] >= 0.99f) {s->diffusepitch = 0;s->diffuseyaw = 0;}
4120         else if (dir[2] <= -0.99f) {s->diffusepitch = 128;s->diffuseyaw = 0;}
4121         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));}
4122 }
4123
4124 static void Mod_GenerateLightmaps_InitSampleOffsets(dp_model_t *model)
4125 {
4126         float radius[3];
4127         float temp[3];
4128         int i, j;
4129         memset(mod_generatelightmaps_offsets, 0, sizeof(mod_generatelightmaps_offsets));
4130         mod_generatelightmaps_numoffsets[0] = min(MAX_LIGHTMAPSAMPLES, mod_generatelightmaps_lightmapsamples.integer);
4131         mod_generatelightmaps_numoffsets[1] = min(MAX_LIGHTMAPSAMPLES, mod_generatelightmaps_vertexsamples.integer);
4132         mod_generatelightmaps_numoffsets[2] = min(MAX_LIGHTMAPSAMPLES, mod_generatelightmaps_gridsamples.integer);
4133         radius[0] = mod_generatelightmaps_lightmapradius.value;
4134         radius[1] = mod_generatelightmaps_vertexradius.value;
4135         radius[2] = mod_generatelightmaps_gridradius.value;
4136         for (i = 0;i < 3;i++)
4137         {
4138                 for (j = 1;j < mod_generatelightmaps_numoffsets[i];j++)
4139                 {
4140                         VectorRandom(temp);
4141                         VectorScale(temp, radius[i], mod_generatelightmaps_offsets[i][j]);
4142                 }
4143         }
4144 }
4145
4146 static void Mod_GenerateLightmaps_DestroyLightmaps(dp_model_t *model)
4147 {
4148         msurface_t *surface;
4149         int surfaceindex;
4150         int i;
4151         for (surfaceindex = 0;surfaceindex < model->num_surfaces;surfaceindex++)
4152         {
4153                 surface = model->data_surfaces + surfaceindex;
4154                 surface->lightmaptexture = NULL;
4155                 surface->deluxemaptexture = NULL;
4156         }
4157         if (model->brushq3.data_lightmaps)
4158         {
4159                 for (i = 0;i < model->brushq3.num_mergedlightmaps;i++)
4160                         if (model->brushq3.data_lightmaps[i])
4161                                 R_FreeTexture(model->brushq3.data_lightmaps[i]);
4162                 Mem_Free(model->brushq3.data_lightmaps);
4163                 model->brushq3.data_lightmaps = NULL;
4164         }
4165         if (model->brushq3.data_deluxemaps)
4166         {
4167                 for (i = 0;i < model->brushq3.num_mergedlightmaps;i++)
4168                         if (model->brushq3.data_deluxemaps[i])
4169                                 R_FreeTexture(model->brushq3.data_deluxemaps[i]);
4170                 Mem_Free(model->brushq3.data_deluxemaps);
4171                 model->brushq3.data_deluxemaps = NULL;
4172         }
4173 }
4174
4175 static void Mod_GenerateLightmaps_UnweldTriangles(dp_model_t *model)
4176 {
4177         msurface_t *surface;
4178         int surfaceindex;
4179         int vertexindex;
4180         int outvertexindex;
4181         int i;
4182         const int *e;
4183         surfmesh_t oldsurfmesh;
4184         size_t size;
4185         unsigned char *data;
4186         oldsurfmesh = model->surfmesh;
4187         model->surfmesh.num_triangles = oldsurfmesh.num_triangles;
4188         model->surfmesh.num_vertices = oldsurfmesh.num_triangles * 3;
4189         size = 0;
4190         size += model->surfmesh.num_vertices * sizeof(float[3]);
4191         size += model->surfmesh.num_vertices * sizeof(float[3]);
4192         size += model->surfmesh.num_vertices * sizeof(float[3]);
4193         size += model->surfmesh.num_vertices * sizeof(float[3]);
4194         size += model->surfmesh.num_vertices * sizeof(float[2]);
4195         size += model->surfmesh.num_vertices * sizeof(float[2]);
4196         size += model->surfmesh.num_vertices * sizeof(float[4]);
4197         data = (unsigned char *)Mem_Alloc(model->mempool, size);
4198         model->surfmesh.data_vertex3f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[3]);
4199         model->surfmesh.data_normal3f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[3]);
4200         model->surfmesh.data_svector3f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[3]);
4201         model->surfmesh.data_tvector3f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[3]);
4202         model->surfmesh.data_texcoordtexture2f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[2]);
4203         model->surfmesh.data_texcoordlightmap2f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[2]);
4204         model->surfmesh.data_lightmapcolor4f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[4]);
4205         if (model->surfmesh.num_vertices > 65536)
4206                 model->surfmesh.data_element3s = NULL;
4207
4208         if (model->surfmesh.data_element3i_indexbuffer)
4209                 R_Mesh_DestroyMeshBuffer(model->surfmesh.data_element3i_indexbuffer);
4210         model->surfmesh.data_element3i_indexbuffer = NULL;
4211         if (model->surfmesh.data_element3s_indexbuffer)
4212                 R_Mesh_DestroyMeshBuffer(model->surfmesh.data_element3s_indexbuffer);
4213         model->surfmesh.data_element3s_indexbuffer = NULL;
4214         if (model->surfmesh.vbo_vertexbuffer)
4215                 R_Mesh_DestroyMeshBuffer(model->surfmesh.vbo_vertexbuffer);
4216         model->surfmesh.vbo_vertexbuffer = 0;
4217
4218         // convert all triangles to unique vertex data
4219         outvertexindex = 0;
4220         for (surfaceindex = 0;surfaceindex < model->num_surfaces;surfaceindex++)
4221         {
4222                 surface = model->data_surfaces + surfaceindex;
4223                 surface->num_firstvertex = outvertexindex;
4224                 surface->num_vertices = surface->num_triangles*3;
4225                 e = oldsurfmesh.data_element3i + surface->num_firsttriangle*3;
4226                 for (i = 0;i < surface->num_triangles*3;i++)
4227                 {
4228                         vertexindex = e[i];
4229                         model->surfmesh.data_vertex3f[outvertexindex*3+0] = oldsurfmesh.data_vertex3f[vertexindex*3+0];
4230                         model->surfmesh.data_vertex3f[outvertexindex*3+1] = oldsurfmesh.data_vertex3f[vertexindex*3+1];
4231                         model->surfmesh.data_vertex3f[outvertexindex*3+2] = oldsurfmesh.data_vertex3f[vertexindex*3+2];
4232                         model->surfmesh.data_normal3f[outvertexindex*3+0] = oldsurfmesh.data_normal3f[vertexindex*3+0];
4233                         model->surfmesh.data_normal3f[outvertexindex*3+1] = oldsurfmesh.data_normal3f[vertexindex*3+1];
4234                         model->surfmesh.data_normal3f[outvertexindex*3+2] = oldsurfmesh.data_normal3f[vertexindex*3+2];
4235                         model->surfmesh.data_svector3f[outvertexindex*3+0] = oldsurfmesh.data_svector3f[vertexindex*3+0];
4236                         model->surfmesh.data_svector3f[outvertexindex*3+1] = oldsurfmesh.data_svector3f[vertexindex*3+1];
4237                         model->surfmesh.data_svector3f[outvertexindex*3+2] = oldsurfmesh.data_svector3f[vertexindex*3+2];
4238                         model->surfmesh.data_tvector3f[outvertexindex*3+0] = oldsurfmesh.data_tvector3f[vertexindex*3+0];
4239                         model->surfmesh.data_tvector3f[outvertexindex*3+1] = oldsurfmesh.data_tvector3f[vertexindex*3+1];
4240                         model->surfmesh.data_tvector3f[outvertexindex*3+2] = oldsurfmesh.data_tvector3f[vertexindex*3+2];
4241                         model->surfmesh.data_texcoordtexture2f[outvertexindex*2+0] = oldsurfmesh.data_texcoordtexture2f[vertexindex*2+0];
4242                         model->surfmesh.data_texcoordtexture2f[outvertexindex*2+1] = oldsurfmesh.data_texcoordtexture2f[vertexindex*2+1];
4243                         if (oldsurfmesh.data_texcoordlightmap2f)
4244                         {
4245                                 model->surfmesh.data_texcoordlightmap2f[outvertexindex*2+0] = oldsurfmesh.data_texcoordlightmap2f[vertexindex*2+0];
4246                                 model->surfmesh.data_texcoordlightmap2f[outvertexindex*2+1] = oldsurfmesh.data_texcoordlightmap2f[vertexindex*2+1];
4247                         }
4248                         if (oldsurfmesh.data_lightmapcolor4f)
4249                         {
4250                                 model->surfmesh.data_lightmapcolor4f[outvertexindex*4+0] = oldsurfmesh.data_lightmapcolor4f[vertexindex*4+0];
4251                                 model->surfmesh.data_lightmapcolor4f[outvertexindex*4+1] = oldsurfmesh.data_lightmapcolor4f[vertexindex*4+1];
4252                                 model->surfmesh.data_lightmapcolor4f[outvertexindex*4+2] = oldsurfmesh.data_lightmapcolor4f[vertexindex*4+2];
4253                                 model->surfmesh.data_lightmapcolor4f[outvertexindex*4+3] = oldsurfmesh.data_lightmapcolor4f[vertexindex*4+3];
4254                         }
4255                         else
4256                                 Vector4Set(model->surfmesh.data_lightmapcolor4f + 4*outvertexindex, 1, 1, 1, 1);
4257                         model->surfmesh.data_element3i[surface->num_firsttriangle*3+i] = outvertexindex;
4258                         outvertexindex++;
4259                 }
4260         }
4261         if (model->surfmesh.data_element3s)
4262                 for (i = 0;i < model->surfmesh.num_triangles*3;i++)
4263                         model->surfmesh.data_element3s[i] = model->surfmesh.data_element3i[i];
4264
4265         // find and update all submodels to use this new surfmesh data
4266         for (i = 0;i < model->brush.numsubmodels;i++)
4267                 model->brush.submodels[i]->surfmesh = model->surfmesh;
4268 }
4269
4270 static void Mod_GenerateLightmaps_CreateTriangleInformation(dp_model_t *model)
4271 {
4272         msurface_t *surface;
4273         int surfaceindex;
4274         int i;
4275         int axis;
4276         float normal[3];
4277         const int *e;
4278         lightmaptriangle_t *triangle;
4279         // generate lightmap triangle structs
4280         mod_generatelightmaps_lightmaptriangles = (lightmaptriangle_t *)Mem_Alloc(model->mempool, model->surfmesh.num_triangles * sizeof(lightmaptriangle_t));
4281         for (surfaceindex = 0;surfaceindex < model->num_surfaces;surfaceindex++)
4282         {
4283                 surface = model->data_surfaces + surfaceindex;
4284                 e = model->surfmesh.data_element3i + surface->num_firsttriangle*3;
4285                 for (i = 0;i < surface->num_triangles;i++)
4286                 {
4287                         triangle = &mod_generatelightmaps_lightmaptriangles[surface->num_firsttriangle+i];
4288                         triangle->triangleindex = surface->num_firsttriangle+i;
4289                         triangle->surfaceindex = surfaceindex;
4290                         VectorCopy(model->surfmesh.data_vertex3f + 3*e[i*3+0], triangle->vertex[0]);
4291                         VectorCopy(model->surfmesh.data_vertex3f + 3*e[i*3+1], triangle->vertex[1]);
4292                         VectorCopy(model->surfmesh.data_vertex3f + 3*e[i*3+2], triangle->vertex[2]);
4293                         // calculate bounds of triangle
4294                         triangle->mins[0] = min(triangle->vertex[0][0], min(triangle->vertex[1][0], triangle->vertex[2][0]));
4295                         triangle->mins[1] = min(triangle->vertex[0][1], min(triangle->vertex[1][1], triangle->vertex[2][1]));
4296                         triangle->mins[2] = min(triangle->vertex[0][2], min(triangle->vertex[1][2], triangle->vertex[2][2]));
4297                         triangle->maxs[0] = max(triangle->vertex[0][0], max(triangle->vertex[1][0], triangle->vertex[2][0]));
4298                         triangle->maxs[1] = max(triangle->vertex[0][1], max(triangle->vertex[1][1], triangle->vertex[2][1]));
4299                         triangle->maxs[2] = max(triangle->vertex[0][2], max(triangle->vertex[1][2], triangle->vertex[2][2]));
4300                         // pick an axial projection based on the triangle normal
4301                         TriangleNormal(triangle->vertex[0], triangle->vertex[1], triangle->vertex[2], normal);
4302                         axis = 0;
4303                         if (fabs(normal[1]) > fabs(normal[axis]))
4304                                 axis = 1;
4305                         if (fabs(normal[2]) > fabs(normal[axis]))
4306                                 axis = 2;
4307                         triangle->axis = axis;
4308                 }
4309         }
4310 }
4311
4312 static void Mod_GenerateLightmaps_DestroyTriangleInformation(dp_model_t *model)
4313 {
4314         if (mod_generatelightmaps_lightmaptriangles)
4315                 Mem_Free(mod_generatelightmaps_lightmaptriangles);
4316         mod_generatelightmaps_lightmaptriangles = NULL;
4317 }
4318
4319 float lmaxis[3][3] = {{1, 0, 0}, {0, 1, 0}, {0, 0, 1}};
4320
4321 static void Mod_GenerateLightmaps_CreateLightmaps(dp_model_t *model)
4322 {
4323         msurface_t *surface;
4324         int surfaceindex;
4325         int lightmapindex;
4326         int lightmapnumber;
4327         int i;
4328         int j;
4329         int k;
4330         int x;
4331         int y;
4332         int axis;
4333         int axis1;
4334         int axis2;
4335         int retry;
4336         int pixeloffset;
4337         float trianglenormal[3];
4338         float samplecenter[3];
4339         float samplenormal[3];
4340         float temp[3];
4341         float lmiscale[2];
4342         float slopex;
4343         float slopey;
4344         float slopebase;
4345         float lmscalepixels;
4346         float lmmins;
4347         float lmmaxs;
4348         float lm_basescalepixels;
4349         int lm_borderpixels;
4350         int lm_texturesize;
4351         //int lm_maxpixels;
4352         const int *e;
4353         lightmaptriangle_t *triangle;
4354         unsigned char *lightmappixels;
4355         unsigned char *deluxemappixels;
4356         mod_alloclightmap_state_t lmstate;
4357         char vabuf[1024];
4358
4359         // generate lightmap projection information for all triangles
4360         if (model->texturepool == NULL)
4361                 model->texturepool = R_AllocTexturePool();
4362         lm_basescalepixels = 1.0f / max(0.0001f, mod_generatelightmaps_unitspersample.value);
4363         lm_borderpixels = mod_generatelightmaps_borderpixels.integer;
4364         lm_texturesize = bound(lm_borderpixels*2+1, 64, (int)vid.maxtexturesize_2d);
4365         //lm_maxpixels = lm_texturesize-(lm_borderpixels*2+1);
4366         Mod_AllocLightmap_Init(&lmstate, loadmodel->mempool, lm_texturesize, lm_texturesize);
4367         lightmapnumber = 0;
4368         for (surfaceindex = 0;surfaceindex < model->num_surfaces;surfaceindex++)
4369         {
4370                 surface = model->data_surfaces + surfaceindex;
4371                 e = model->surfmesh.data_element3i + surface->num_firsttriangle*3;
4372                 lmscalepixels = lm_basescalepixels;
4373                 for (retry = 0;retry < 30;retry++)
4374                 {
4375                         // after a couple failed attempts, degrade quality to make it fit
4376                         if (retry > 1)
4377                                 lmscalepixels *= 0.5f;
4378                         for (i = 0;i < surface->num_triangles;i++)
4379                         {
4380                                 triangle = &mod_generatelightmaps_lightmaptriangles[surface->num_firsttriangle+i];
4381                                 triangle->lightmapindex = lightmapnumber;
4382                                 // calculate lightmap bounds in 3D pixel coordinates, limit size,
4383                                 // pick two planar axes for projection
4384                                 // lightmap coordinates here are in pixels
4385                                 // lightmap projections are snapped to pixel grid explicitly, such
4386                                 // that two neighboring triangles sharing an edge and projection
4387                                 // axis will have identical sampl espacing along their shared edge
4388                                 k = 0;
4389                                 for (j = 0;j < 3;j++)
4390                                 {
4391                                         if (j == triangle->axis)
4392                                                 continue;
4393                                         lmmins = floor(triangle->mins[j]*lmscalepixels)-lm_borderpixels;
4394                                         lmmaxs = floor(triangle->maxs[j]*lmscalepixels)+lm_borderpixels;
4395                                         triangle->lmsize[k] = (int)(lmmaxs-lmmins);
4396                                         triangle->lmbase[k] = lmmins/lmscalepixels;
4397                                         triangle->lmscale[k] = lmscalepixels;
4398                                         k++;
4399                                 }
4400                                 if (!Mod_AllocLightmap_Block(&lmstate, triangle->lmsize[0], triangle->lmsize[1], &triangle->lmoffset[0], &triangle->lmoffset[1]))
4401                                         break;
4402                         }
4403                         // if all fit in this texture, we're done with this surface
4404                         if (i == surface->num_triangles)
4405                                 break;
4406                         // if we haven't maxed out the lightmap size yet, we retry the
4407                         // entire surface batch...
4408                         if (lm_texturesize * 2 <= min(mod_generatelightmaps_texturesize.integer, (int)vid.maxtexturesize_2d))
4409                         {
4410                                 lm_texturesize *= 2;
4411                                 surfaceindex = -1;
4412                                 lightmapnumber = 0;
4413                                 Mod_AllocLightmap_Free(&lmstate);
4414                                 Mod_AllocLightmap_Init(&lmstate, loadmodel->mempool, lm_texturesize, lm_texturesize);
4415                                 break;
4416                         }
4417                         // if we have maxed out the lightmap size, and this triangle does
4418                         // not fit in the same texture as the rest of the surface, we have
4419                         // to retry the entire surface in a new texture (can only use one)
4420                         // with multiple retries, the lightmap quality degrades until it
4421                         // fits (or gives up)
4422                         if (surfaceindex > 0)
4423                                 lightmapnumber++;
4424                         Mod_AllocLightmap_Reset(&lmstate);
4425                 }
4426         }
4427         lightmapnumber++;
4428         Mod_AllocLightmap_Free(&lmstate);
4429
4430         // now put triangles together into lightmap textures, and do not allow
4431         // triangles of a surface to go into different textures (as that would
4432         // require rewriting the surface list)
4433         model->brushq3.deluxemapping_modelspace = true;
4434         model->brushq3.deluxemapping = true;
4435         model->brushq3.num_mergedlightmaps = lightmapnumber;
4436         model->brushq3.data_lightmaps = (rtexture_t **)Mem_Alloc(model->mempool, model->brushq3.num_mergedlightmaps * sizeof(rtexture_t *));
4437         model->brushq3.data_deluxemaps = (rtexture_t **)Mem_Alloc(model->mempool, model->brushq3.num_mergedlightmaps * sizeof(rtexture_t *));
4438         lightmappixels = (unsigned char *)Mem_Alloc(tempmempool, model->brushq3.num_mergedlightmaps * lm_texturesize * lm_texturesize * 4);
4439         deluxemappixels = (unsigned char *)Mem_Alloc(tempmempool, model->brushq3.num_mergedlightmaps * lm_texturesize * lm_texturesize * 4);
4440         for (surfaceindex = 0;surfaceindex < model->num_surfaces;surfaceindex++)
4441         {
4442                 surface = model->data_surfaces + surfaceindex;
4443                 e = model->surfmesh.data_element3i + surface->num_firsttriangle*3;
4444                 for (i = 0;i < surface->num_triangles;i++)
4445                 {
4446                         triangle = &mod_generatelightmaps_lightmaptriangles[surface->num_firsttriangle+i];
4447                         TriangleNormal(triangle->vertex[0], triangle->vertex[1], triangle->vertex[2], trianglenormal);
4448                         VectorNormalize(trianglenormal);
4449                         VectorCopy(trianglenormal, samplenormal); // FIXME: this is supposed to be interpolated per pixel from vertices
4450                         axis = triangle->axis;
4451                         axis1 = axis == 0 ? 1 : 0;
4452                         axis2 = axis == 2 ? 1 : 2;
4453                         lmiscale[0] = 1.0f / triangle->lmscale[0];
4454                         lmiscale[1] = 1.0f / triangle->lmscale[1];
4455                         if (trianglenormal[axis] < 0)
4456                                 VectorNegate(trianglenormal, trianglenormal);
4457                         CrossProduct(lmaxis[axis2], trianglenormal, temp);slopex = temp[axis] / temp[axis1];
4458                         CrossProduct(lmaxis[axis1], trianglenormal, temp);slopey = temp[axis] / temp[axis2];
4459                         slopebase = triangle->vertex[0][axis] - triangle->vertex[0][axis1]*slopex - triangle->vertex[0][axis2]*slopey;
4460                         for (j = 0;j < 3;j++)
4461                         {
4462                                 float *t2f = model->surfmesh.data_texcoordlightmap2f + e[i*3+j]*2;
4463                                 t2f[0] = ((triangle->vertex[j][axis1] - triangle->lmbase[0]) * triangle->lmscale[0] + triangle->lmoffset[0]) / lm_texturesize;
4464                                 t2f[1] = ((triangle->vertex[j][axis2] - triangle->lmbase[1]) * triangle->lmscale[1] + triangle->lmoffset[1]) / lm_texturesize;
4465 #if 0
4466                                 samplecenter[axis1] = (t2f[0]*lm_texturesize-triangle->lmoffset[0])*lmiscale[0] + triangle->lmbase[0];
4467                                 samplecenter[axis2] = (t2f[1]*lm_texturesize-triangle->lmoffset[1])*lmiscale[1] + triangle->lmbase[1];
4468                                 samplecenter[axis] = samplecenter[axis1]*slopex + samplecenter[axis2]*slopey + slopebase;
4469                                 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]);
4470 #endif
4471                         }
4472
4473 #if 0
4474                         switch (axis)
4475                         {
4476                         default:
4477                         case 0:
4478                                 forward[0] = 0;
4479                                 forward[1] = 1.0f / triangle->lmscale[0];
4480                                 forward[2] = 0;
4481                                 left[0] = 0;
4482                                 left[1] = 0;
4483                                 left[2] = 1.0f / triangle->lmscale[1];
4484                                 up[0] = 1.0f;
4485                                 up[1] = 0;
4486                                 up[2] = 0;
4487                                 origin[0] = 0;
4488                                 origin[1] = triangle->lmbase[0];
4489                                 origin[2] = triangle->lmbase[1];
4490                                 break;
4491                         case 1:
4492                                 forward[0] = 1.0f / triangle->lmscale[0];
4493                                 forward[1] = 0;
4494                                 forward[2] = 0;
4495                                 left[0] = 0;
4496                                 left[1] = 0;
4497                                 left[2] = 1.0f / triangle->lmscale[1];
4498                                 up[0] = 0;
4499                                 up[1] = 1.0f;
4500                                 up[2] = 0;
4501                                 origin[0] = triangle->lmbase[0];
4502                                 origin[1] = 0;
4503                                 origin[2] = triangle->lmbase[1];
4504                                 break;
4505                         case 2:
4506                                 forward[0] = 1.0f / triangle->lmscale[0];
4507                                 forward[1] = 0;
4508                                 forward[2] = 0;
4509                                 left[0] = 0;
4510                                 left[1] = 1.0f / triangle->lmscale[1];
4511                                 left[2] = 0;
4512                                 up[0] = 0;
4513                                 up[1] = 0;
4514                                 up[2] = 1.0f;
4515                                 origin[0] = triangle->lmbase[0];
4516                                 origin[1] = triangle->lmbase[1];
4517                                 origin[2] = 0;
4518                                 break;
4519                         }
4520                         Matrix4x4_FromVectors(&backmatrix, forward, left, up, origin);
4521 #endif
4522 #define LM_DIST_EPSILON (1.0f / 32.0f)
4523                         for (y = 0;y < triangle->lmsize[1];y++)
4524                         {
4525                                 pixeloffset = ((triangle->lightmapindex * lm_texturesize + y + triangle->lmoffset[1]) * lm_texturesize + triangle->lmoffset[0]) * 4;
4526                                 for (x = 0;x < triangle->lmsize[0];x++, pixeloffset += 4)
4527                                 {
4528                                         samplecenter[axis1] = (x+0.5f)*lmiscale[0] + triangle->lmbase[0];
4529                                         samplecenter[axis2] = (y+0.5f)*lmiscale[1] + triangle->lmbase[1];
4530                                         samplecenter[axis] = samplecenter[axis1]*slopex + samplecenter[axis2]*slopey + slopebase;
4531                                         VectorMA(samplecenter, 0.125f, samplenormal, samplecenter);
4532                                         Mod_GenerateLightmaps_LightmapSample(samplecenter, samplenormal, lightmappixels + pixeloffset, deluxemappixels + pixeloffset);
4533                                 }
4534                         }
4535                 }
4536         }
4537
4538         for (lightmapindex = 0;lightmapindex < model->brushq3.num_mergedlightmaps;lightmapindex++)
4539         {
4540                 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);
4541                 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);
4542         }
4543
4544         if (lightmappixels)
4545                 Mem_Free(lightmappixels);
4546         if (deluxemappixels)
4547                 Mem_Free(deluxemappixels);
4548
4549         for (surfaceindex = 0;surfaceindex < model->num_surfaces;surfaceindex++)
4550         {
4551                 surface = model->data_surfaces + surfaceindex;
4552                 if (!surface->num_triangles)
4553                         continue;
4554                 lightmapindex = mod_generatelightmaps_lightmaptriangles[surface->num_firsttriangle].lightmapindex;
4555                 surface->lightmaptexture = model->brushq3.data_lightmaps[lightmapindex];
4556                 surface->deluxemaptexture = model->brushq3.data_deluxemaps[lightmapindex];
4557                 surface->lightmapinfo = NULL;
4558         }
4559
4560         model->brush.LightPoint = Mod_GenerateLightmaps_LightPoint;
4561         model->brushq1.lightdata = NULL;
4562         model->brushq1.lightmapupdateflags = NULL;
4563         model->brushq1.firstrender = false;
4564         model->brushq1.num_lightstyles = 0;
4565         model->brushq1.data_lightstyleinfo = NULL;
4566         for (i = 0;i < model->brush.numsubmodels;i++)
4567         {
4568                 model->brush.submodels[i]->brushq1.lightmapupdateflags = NULL;
4569                 model->brush.submodels[i]->brushq1.firstrender = false;
4570                 model->brush.submodels[i]->brushq1.num_lightstyles = 0;
4571                 model->brush.submodels[i]->brushq1.data_lightstyleinfo = NULL;
4572         }
4573 }
4574
4575 static void Mod_GenerateLightmaps_UpdateVertexColors(dp_model_t *model)
4576 {
4577         int i;
4578         for (i = 0;i < model->surfmesh.num_vertices;i++)
4579                 Mod_GenerateLightmaps_VertexSample(model->surfmesh.data_vertex3f + 3*i, model->surfmesh.data_normal3f + 3*i, model->surfmesh.data_lightmapcolor4f + 4*i);
4580 }
4581
4582 static void Mod_GenerateLightmaps_UpdateLightGrid(dp_model_t *model)
4583 {
4584         int x;
4585         int y;
4586         int z;
4587         int index = 0;
4588         float pos[3];
4589         for (z = 0;z < model->brushq3.num_lightgrid_isize[2];z++)
4590         {
4591                 pos[2] = (model->brushq3.num_lightgrid_imins[2] + z + 0.5f) * model->brushq3.num_lightgrid_cellsize[2];
4592                 for (y = 0;y < model->brushq3.num_lightgrid_isize[1];y++)
4593                 {
4594                         pos[1] = (model->brushq3.num_lightgrid_imins[1] + y + 0.5f) * model->brushq3.num_lightgrid_cellsize[1];
4595                         for (x = 0;x < model->brushq3.num_lightgrid_isize[0];x++, index++)
4596                         {
4597                                 pos[0] = (model->brushq3.num_lightgrid_imins[0] + x + 0.5f) * model->brushq3.num_lightgrid_cellsize[0];
4598                                 Mod_GenerateLightmaps_GridSample(pos, model->brushq3.data_lightgrid + index);
4599                         }
4600                 }
4601         }
4602 }
4603
4604 extern cvar_t mod_q3bsp_nolightmaps;
4605 static void Mod_GenerateLightmaps(dp_model_t *model)
4606 {
4607         //lightmaptriangle_t *lightmaptriangles = Mem_Alloc(model->mempool, model->surfmesh.num_triangles * sizeof(lightmaptriangle_t));
4608         dp_model_t *oldloadmodel = loadmodel;
4609         loadmodel = model;
4610
4611         Mod_GenerateLightmaps_InitSampleOffsets(model);
4612         Mod_GenerateLightmaps_DestroyLightmaps(model);
4613         Mod_GenerateLightmaps_UnweldTriangles(model);
4614         Mod_GenerateLightmaps_CreateTriangleInformation(model);
4615         Mod_GenerateLightmaps_CreateLights(model);
4616         if(!mod_q3bsp_nolightmaps.integer)
4617                 Mod_GenerateLightmaps_CreateLightmaps(model);
4618         Mod_GenerateLightmaps_UpdateVertexColors(model);
4619         Mod_GenerateLightmaps_UpdateLightGrid(model);
4620         Mod_GenerateLightmaps_DestroyLights(model);
4621         Mod_GenerateLightmaps_DestroyTriangleInformation(model);
4622
4623         loadmodel = oldloadmodel;
4624 }
4625
4626 static void Mod_GenerateLightmaps_f(void)
4627 {
4628         if (Cmd_Argc() != 1)
4629         {
4630                 Con_Printf("usage: mod_generatelightmaps\n");
4631                 return;
4632         }
4633         if (!cl.worldmodel)
4634         {
4635                 Con_Printf("no worldmodel loaded\n");
4636                 return;
4637         }
4638         Mod_GenerateLightmaps(cl.worldmodel);
4639 }
4640
4641 void Mod_Mesh_Create(dp_model_t *mod, const char *name)
4642 {
4643         memset(mod, 0, sizeof(*mod));
4644         strlcpy(mod->name, name, sizeof(mod->name));
4645         mod->mempool = Mem_AllocPool(name, 0, NULL);
4646         mod->texturepool = R_AllocTexturePool();
4647         mod->Draw = R_Q1BSP_Draw;
4648         mod->DrawDepth = R_Q1BSP_DrawDepth;
4649         mod->DrawDebug = R_Q1BSP_DrawDebug;
4650         mod->DrawPrepass = R_Q1BSP_DrawPrepass;
4651         mod->GetLightInfo = R_Q1BSP_GetLightInfo;
4652         mod->DrawShadowMap = R_Q1BSP_DrawShadowMap;
4653         mod->DrawShadowVolume = R_Q1BSP_DrawShadowVolume;
4654         mod->DrawLight = R_Q1BSP_DrawLight;
4655 }
4656
4657 void Mod_Mesh_Destroy(dp_model_t *mod)
4658 {
4659         Mod_UnloadModel(mod);
4660 }
4661
4662 // resets the mesh model to have no geometry to render, ready for a new frame -
4663 // the mesh will be prepared for rendering later using Mod_Mesh_Finalize
4664 void Mod_Mesh_Reset(dp_model_t *mod)
4665 {
4666         mod->num_surfaces = 0;
4667         mod->surfmesh.num_vertices = 0;
4668         mod->surfmesh.num_triangles = 0;
4669         memset(mod->surfmesh.data_vertexhash, -1, mod->surfmesh.num_vertexhashsize * sizeof(*mod->surfmesh.data_vertexhash));
4670         mod->DrawSky = NULL; // will be set if a texture needs it
4671         mod->DrawAddWaterPlanes = NULL; // will be set if a texture needs it
4672 }
4673
4674 texture_t *Mod_Mesh_GetTexture(dp_model_t *mod, const char *name, int defaultdrawflags, int defaulttexflags, int defaultmaterialflags)
4675 {
4676         int i;
4677         texture_t *t;
4678         for (i = 0; i < mod->num_textures; i++)
4679                 if (!strcmp(mod->data_textures[i].name, name))
4680                         return mod->data_textures + i;
4681         if (mod->max_textures <= mod->num_textures)
4682         {
4683                 texture_t *oldtextures = mod->data_textures;
4684                 mod->max_textures = max(mod->max_textures * 2, 1024);
4685                 mod->data_textures = (texture_t *)Mem_Realloc(mod->mempool, mod->data_textures, mod->max_textures * sizeof(*mod->data_textures));
4686                 // update the pointers
4687                 for (i = 0; i < mod->num_surfaces; i++)
4688                         mod->data_surfaces[i].texture = mod->data_textures + (mod->data_surfaces[i].texture - oldtextures);
4689         }
4690         t = &mod->data_textures[mod->num_textures++];
4691         Mod_LoadTextureFromQ3Shader(mod->mempool, mod->name, t, name, false, true, defaulttexflags, defaultmaterialflags);
4692         switch (defaultdrawflags & DRAWFLAG_MASK)
4693         {
4694         case DRAWFLAG_ADDITIVE:
4695                 t->basematerialflags |= MATERIALFLAG_ADD | MATERIALFLAG_BLENDED;
4696                 t->currentmaterialflags = t->basematerialflags;
4697                 break;
4698         case DRAWFLAG_MODULATE:
4699                 t->basematerialflags |= MATERIALFLAG_CUSTOMBLEND | MATERIALFLAG_BLENDED;
4700                 t->currentmaterialflags = t->basematerialflags;
4701                 t->customblendfunc[0] = GL_DST_COLOR;
4702                 t->customblendfunc[1] = GL_ZERO;
4703                 break;
4704         case DRAWFLAG_2XMODULATE:
4705                 t->basematerialflags |= MATERIALFLAG_CUSTOMBLEND | MATERIALFLAG_BLENDED;
4706                 t->currentmaterialflags = t->basematerialflags;
4707                 t->customblendfunc[0] = GL_DST_COLOR;
4708                 t->customblendfunc[1] = GL_SRC_COLOR;
4709                 break;
4710         case DRAWFLAG_SCREEN:
4711                 t->basematerialflags |= MATERIALFLAG_CUSTOMBLEND | MATERIALFLAG_BLENDED;
4712                 t->currentmaterialflags = t->basematerialflags;
4713                 t->customblendfunc[0] = GL_ONE_MINUS_DST_COLOR;
4714                 t->customblendfunc[1] = GL_ONE;
4715                 break;
4716         default:
4717                 break;
4718         }
4719         return t;
4720 }
4721
4722 msurface_t *Mod_Mesh_AddSurface(dp_model_t *mod, texture_t *tex, qboolean batchwithprevioussurface)
4723 {
4724         msurface_t *surf;
4725         // batch if possible; primarily useful for UI rendering where bounding boxes don't matter
4726         if (batchwithprevioussurface && mod->num_surfaces > 0 && mod->data_surfaces[mod->num_surfaces - 1].texture == tex)
4727                 return mod->data_surfaces + mod->num_surfaces - 1;
4728         // create new surface
4729         if (mod->max_surfaces == mod->num_surfaces)
4730         {
4731                 mod->max_surfaces = 2 * max(mod->num_surfaces, 64);
4732                 mod->data_surfaces = (msurface_t *)Mem_Realloc(mod->mempool, mod->data_surfaces, mod->max_surfaces * sizeof(*mod->data_surfaces));
4733                 mod->sortedmodelsurfaces = (int *)Mem_Realloc(mod->mempool, mod->sortedmodelsurfaces, mod->max_surfaces * sizeof(*mod->sortedmodelsurfaces));
4734         }
4735         surf = mod->data_surfaces + mod->num_surfaces;
4736         mod->num_surfaces++;
4737         memset(surf, 0, sizeof(*surf));
4738         surf->texture = tex;
4739         surf->num_firsttriangle = mod->surfmesh.num_triangles;
4740         surf->num_firstvertex = mod->surfmesh.num_vertices;
4741         if (tex->basematerialflags & (MATERIALFLAG_SKY))
4742                 mod->DrawSky = R_Q1BSP_DrawSky;
4743         if (tex->basematerialflags & (MATERIALFLAG_WATERSHADER | MATERIALFLAG_REFRACTION | MATERIALFLAG_REFLECTION | MATERIALFLAG_CAMERA))
4744                 mod->DrawAddWaterPlanes = R_Q1BSP_DrawAddWaterPlanes;
4745         return surf;
4746 }
4747
4748 int Mod_Mesh_IndexForVertex(dp_model_t *mod, msurface_t *surf, float x, float y, float z, float nx, float ny, float nz, float s, float t, float u, float v, float r, float g, float b, float a)
4749 {
4750         int hashindex, h, vnum, mask;
4751         surfmesh_t *mesh = &mod->surfmesh;
4752         if (mesh->max_vertices == mesh->num_vertices)
4753         {
4754                 mesh->max_vertices = max(mesh->num_vertices * 2, 256);
4755                 mesh->data_vertex3f = (float *)Mem_Realloc(mod->mempool, mesh->data_vertex3f, mesh->max_vertices * sizeof(float[3]));
4756                 mesh->data_svector3f = (float *)Mem_Realloc(mod->mempool, mesh->data_svector3f, mesh->max_vertices * sizeof(float[3]));
4757                 mesh->data_tvector3f = (float *)Mem_Realloc(mod->mempool, mesh->data_tvector3f, mesh->max_vertices * sizeof(float[3]));
4758                 mesh->data_normal3f = (float *)Mem_Realloc(mod->mempool, mesh->data_normal3f, mesh->max_vertices * sizeof(float[3]));
4759                 mesh->data_texcoordtexture2f = (float *)Mem_Realloc(mod->mempool, mesh->data_texcoordtexture2f, mesh->max_vertices * sizeof(float[2]));
4760                 mesh->data_texcoordlightmap2f = (float *)Mem_Realloc(mod->mempool, mesh->data_texcoordlightmap2f, mesh->max_vertices * sizeof(float[2]));
4761                 mesh->data_lightmapcolor4f = (float *)Mem_Realloc(mod->mempool, mesh->data_lightmapcolor4f, mesh->max_vertices * sizeof(float[4]));
4762                 // rebuild the hash table
4763                 mesh->num_vertexhashsize = 4 * mesh->max_vertices;
4764                 mesh->num_vertexhashsize &= ~(mesh->num_vertexhashsize - 1); // round down to pow2
4765                 mesh->data_vertexhash = (int *)Mem_Realloc(mod->mempool, mesh->data_vertexhash, mesh->num_vertexhashsize * sizeof(*mesh->data_vertexhash));
4766                 memset(mesh->data_vertexhash, -1, mesh->num_vertexhashsize * sizeof(*mesh->data_vertexhash));
4767                 mask = mod->surfmesh.num_vertexhashsize - 1;
4768                 // no need to hash the vertices for the entire model, the latest surface will suffice.
4769                 for (vnum = surf ? surf->num_firstvertex : 0; vnum < mesh->num_vertices; vnum++)
4770                 {
4771                         // this uses prime numbers intentionally for computing the hash
4772                         hashindex = (unsigned int)(mesh->data_vertex3f[vnum * 3 + 0] * 2003 + mesh->data_vertex3f[vnum * 3 + 1] * 4001 + mesh->data_vertex3f[vnum * 3 + 2] * 7919 + mesh->data_normal3f[vnum * 3 + 0] * 4097 + mesh->data_normal3f[vnum * 3 + 1] * 257 + mesh->data_normal3f[vnum * 3 + 2] * 17) & mask;
4773                         for (h = hashindex; mesh->data_vertexhash[h] >= 0; h = (h + 1) & mask)
4774                                 ; // just iterate until we find the terminator
4775                         mesh->data_vertexhash[h] = vnum;
4776                 }
4777         }
4778         mask = mod->surfmesh.num_vertexhashsize - 1;
4779         // this uses prime numbers intentionally for computing the hash
4780         hashindex = (unsigned int)(x * 2003 + y * 4001 + z * 7919 + nx * 4097 + ny * 257 + nz * 17) & mask;
4781         // when possible find an identical vertex within the same surface and return it
4782         for(h = hashindex;(vnum = mesh->data_vertexhash[h]) >= 0;h = (h + 1) & mask)
4783         {
4784                 if (vnum >= surf->num_firstvertex
4785                  && mesh->data_vertex3f[vnum * 3 + 0] == x && mesh->data_vertex3f[vnum * 3 + 1] == y && mesh->data_vertex3f[vnum * 3 + 2] == z
4786                  && mesh->data_normal3f[vnum * 3 + 0] == nx && mesh->data_normal3f[vnum * 3 + 1] == ny && mesh->data_normal3f[vnum * 3 + 2] == nz
4787                  && mesh->data_texcoordtexture2f[vnum * 2 + 0] == s && mesh->data_texcoordtexture2f[vnum * 2 + 1] == t
4788                  && mesh->data_texcoordlightmap2f[vnum * 2 + 0] == u && mesh->data_texcoordlightmap2f[vnum * 2 + 1] == v
4789                  && mesh->data_lightmapcolor4f[vnum * 4 + 0] == r && mesh->data_lightmapcolor4f[vnum * 4 + 1] == g && mesh->data_lightmapcolor4f[vnum * 4 + 2] == b && mesh->data_lightmapcolor4f[vnum * 4 + 3] == a)
4790                         return vnum;
4791         }
4792         // add the new vertex
4793         vnum = mesh->num_vertices++;
4794         if (surf->num_vertices > 0)
4795         {
4796                 if (surf->mins[0] > x) surf->mins[0] = x;
4797                 if (surf->mins[1] > y) surf->mins[1] = y;
4798                 if (surf->mins[2] > z) surf->mins[2] = z;
4799                 if (surf->maxs[0] < x) surf->maxs[0] = x;
4800                 if (surf->maxs[1] < y) surf->maxs[1] = y;
4801                 if (surf->maxs[2] < z) surf->maxs[2] = z;
4802         }
4803         else
4804         {
4805                 VectorSet(surf->mins, x, y, z);
4806                 VectorSet(surf->maxs, x, y, z);
4807         }
4808         surf->num_vertices = mesh->num_vertices - surf->num_firstvertex;
4809         mesh->data_vertexhash[h] = vnum;
4810         mesh->data_vertex3f[vnum * 3 + 0] = x;
4811         mesh->data_vertex3f[vnum * 3 + 1] = y;
4812         mesh->data_vertex3f[vnum * 3 + 2] = z;
4813         mesh->data_normal3f[vnum * 3 + 0] = nx;
4814         mesh->data_normal3f[vnum * 3 + 1] = ny;
4815         mesh->data_normal3f[vnum * 3 + 2] = nz;
4816         mesh->data_texcoordtexture2f[vnum * 2 + 0] = s;
4817         mesh->data_texcoordtexture2f[vnum * 2 + 1] = t;
4818         mesh->data_texcoordlightmap2f[vnum * 2 + 0] = u;
4819         mesh->data_texcoordlightmap2f[vnum * 2 + 1] = v;
4820         mesh->data_lightmapcolor4f[vnum * 4 + 0] = r;
4821         mesh->data_lightmapcolor4f[vnum * 4 + 1] = g;
4822         mesh->data_lightmapcolor4f[vnum * 4 + 2] = b;
4823         mesh->data_lightmapcolor4f[vnum * 4 + 3] = a;
4824         return vnum;
4825 }
4826
4827 void Mod_Mesh_AddTriangle(dp_model_t *mod, msurface_t *surf, int e0, int e1, int e2)
4828 {
4829         surfmesh_t *mesh = &mod->surfmesh;
4830         if (mesh->max_triangles == mesh->num_triangles)
4831         {
4832                 mesh->max_triangles = 2 * max(mesh->num_triangles, 128);
4833                 mesh->data_element3s = (unsigned short *)Mem_Realloc(mod->mempool, mesh->data_element3s, mesh->max_triangles * sizeof(unsigned short[3]));
4834                 mesh->data_element3i = (int *)Mem_Realloc(mod->mempool, mesh->data_element3i, mesh->max_triangles * sizeof(int[3]));
4835         }
4836         mesh->data_element3s[mesh->num_triangles * 3 + 0] = e0;
4837         mesh->data_element3s[mesh->num_triangles * 3 + 1] = e1;
4838         mesh->data_element3s[mesh->num_triangles * 3 + 2] = e2;
4839         mesh->data_element3i[mesh->num_triangles * 3 + 0] = e0;
4840         mesh->data_element3i[mesh->num_triangles * 3 + 1] = e1;
4841         mesh->data_element3i[mesh->num_triangles * 3 + 2] = e2;
4842         mesh->num_triangles++;
4843         surf->num_triangles++;
4844 }
4845
4846 static void Mod_Mesh_MakeSortedSurfaces(dp_model_t *mod)
4847 {
4848         int i, j;
4849         texture_t *tex;
4850         msurface_t *surf, *surf2;
4851
4852         // build the sorted surfaces list properly to reduce material setup
4853         // this is easy because we're just sorting on texture and don't care about the order of textures
4854         mod->nummodelsurfaces = 0;
4855         for (i = 0; i < mod->num_surfaces; i++)
4856                 mod->data_surfaces[i].included = false;
4857         for (i = 0; i < mod->num_surfaces; i++)
4858         {
4859                 surf = mod->data_surfaces + i;
4860                 if (surf->included)
4861                         continue;
4862                 tex = surf->texture;
4863                 // j = i is intentional
4864                 for (j = i; j < mod->num_surfaces; j++)
4865                 {
4866                         surf2 = mod->data_surfaces + j;
4867                         if (surf2->included)
4868                                 continue;
4869                         if (surf2->texture == tex)
4870                         {
4871                                 surf2->included = true;
4872                                 mod->sortedmodelsurfaces[mod->nummodelsurfaces++] = j;
4873                         }
4874                 }
4875         }
4876 }
4877
4878 void Mod_Mesh_ComputeBounds(dp_model_t *mod)
4879 {
4880         int i;
4881         vec_t x2a, x2b, y2a, y2b, z2a, z2b, x2, y2, z2, yawradius, rotatedradius;
4882
4883         if (mod->surfmesh.num_vertices > 0)
4884         {
4885                 // calculate normalmins/normalmaxs
4886                 VectorCopy(mod->surfmesh.data_vertex3f, mod->normalmins);
4887                 VectorCopy(mod->surfmesh.data_vertex3f, mod->normalmaxs);
4888                 for (i = 1; i < mod->surfmesh.num_vertices; i++)
4889                 {
4890                         float x = mod->surfmesh.data_vertex3f[i * 3 + 0];
4891                         float y = mod->surfmesh.data_vertex3f[i * 3 + 1];
4892                         float z = mod->surfmesh.data_vertex3f[i * 3 + 2];
4893                         // expand bounds to include this vertex
4894                         if (mod->normalmins[0] > x) mod->normalmins[0] = x;
4895                         if (mod->normalmins[1] > y) mod->normalmins[1] = y;
4896                         if (mod->normalmins[2] > z) mod->normalmins[2] = z;
4897                         if (mod->normalmaxs[0] < x) mod->normalmaxs[0] = x;
4898                         if (mod->normalmaxs[1] < y) mod->normalmaxs[1] = y;
4899                         if (mod->normalmaxs[2] < z) mod->normalmaxs[2] = z;
4900                 }
4901                 // calculate yawmins/yawmaxs, rotatedmins/maxs from normalmins/maxs
4902                 // (fast but less accurate than doing it per vertex)
4903                 x2a = mod->normalmins[0] * mod->normalmins[0];
4904                 x2b = mod->normalmaxs[0] * mod->normalmaxs[0];
4905                 y2a = mod->normalmins[1] * mod->normalmins[1];
4906                 y2b = mod->normalmaxs[1] * mod->normalmaxs[1];
4907                 z2a = mod->normalmins[2] * mod->normalmins[2];
4908                 z2b = mod->normalmaxs[2] * mod->normalmaxs[2];
4909                 x2 = max(x2a, x2b);
4910                 y2 = max(y2a, y2b);
4911                 z2 = max(z2a, z2b);
4912                 yawradius = sqrt(x2 + y2);
4913                 rotatedradius = sqrt(x2 + y2 + z2);
4914                 VectorSet(mod->yawmins, -yawradius, -yawradius, mod->normalmins[2]);
4915                 VectorSet(mod->yawmaxs, yawradius, yawradius, mod->normalmaxs[2]);
4916                 VectorSet(mod->rotatedmins, -rotatedradius, -rotatedradius, -rotatedradius);
4917                 VectorSet(mod->rotatedmaxs, rotatedradius, rotatedradius, rotatedradius);
4918                 mod->radius = rotatedradius;
4919                 mod->radius2 = x2 + y2 + z2;
4920         }
4921         else
4922         {
4923                 VectorClear(mod->normalmins);
4924                 VectorClear(mod->normalmaxs);
4925                 VectorClear(mod->yawmins);
4926                 VectorClear(mod->yawmaxs);
4927                 VectorClear(mod->rotatedmins);
4928                 VectorClear(mod->rotatedmaxs);
4929                 mod->radius = 0;
4930                 mod->radius2 = 0;
4931         }
4932 }
4933
4934 void Mod_Mesh_Finalize(dp_model_t *mod)
4935 {
4936         Mod_Mesh_ComputeBounds(mod);
4937         Mod_Mesh_MakeSortedSurfaces(mod);
4938         Mod_BuildTextureVectorsFromNormals(0, mod->surfmesh.num_vertices, mod->surfmesh.num_triangles, mod->surfmesh.data_vertex3f, mod->surfmesh.data_texcoordtexture2f, mod->surfmesh.data_normal3f, mod->surfmesh.data_element3i, mod->surfmesh.data_svector3f, mod->surfmesh.data_tvector3f, true);
4939 }