tools/quake3/q3map2/model.c

   1 /* -------------------------------------------------------------------------------
   2
   3    Copyright (C) 1999-2007 id Software, Inc. and contributors.
   4    For a list of contributors, see the accompanying CONTRIBUTORS file.
   5
   6    This file is part of GtkRadiant.
   7
   8    GtkRadiant is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 2 of the License, or
  11    (at your option) any later version.
  12
  13    GtkRadiant is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with GtkRadiant; if not, write to the Free Software
  20    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  21
  22    ----------------------------------------------------------------------------------
  23
  24    This code has been altered significantly from its original form, to support
  25    several games based on the Quake III Arena engine, in the form of "Q3Map2."
  26
  27    ------------------------------------------------------------------------------- */
  28
  29
  30
  31 /* marker */
  32 #define MODEL_C
  33
  34
  35
  36 /* dependencies */
  37 #include "q3map2.h"
  38
  39
  40
  41 /*
  42    PicoPrintFunc()
  43    callback for picomodel.lib
  44  */
  45
  46 void PicoPrintFunc( int level, const char *str ){
  47         if ( str == NULL ) {
  48                 return;
  49         }
  50         switch ( level )
  51         {
  52         case PICO_NORMAL:
  53                 Sys_Printf( "%s\n", str );
  54                 break;
  55
  56         case PICO_VERBOSE:
  57                 Sys_FPrintf( SYS_VRB, "%s\n", str );
  58                 break;
  59
  60         case PICO_WARNING:
  61                 Sys_FPrintf( SYS_WRN, "WARNING: %s\n", str );
  62                 break;
  63
  64         case PICO_ERROR:
  65                 Sys_FPrintf( SYS_ERR, "ERROR: %s\n", str );
  66                 break;
  67
  68         case PICO_FATAL:
  69                 Error( "ERROR: %s\n", str );
  70                 break;
  71         }
  72 }
  73
  74
  75
  76 /*
  77    PicoLoadFileFunc()
  78    callback for picomodel.lib
  79  */
  80
  81 void PicoLoadFileFunc( const char *name, byte **buffer, int *bufSize ){
  82         *bufSize = vfsLoadFile( name, (void**) buffer, 0 );
  83 }
  84
  85
  86
  87 /*
  88    FindModel() - ydnar
  89    finds an existing picoModel and returns a pointer to the picoModel_t struct or NULL if not found
  90  */
  91
  92 picoModel_t *FindModel( const char *name, int frame ){
  93         int i;
  94
  95
  96         /* init */
  97         if ( numPicoModels <= 0 ) {
  98                 memset( picoModels, 0, sizeof( picoModels ) );
  99         }
 100
 101         /* dummy check */
 102         if ( name == NULL || name[ 0 ] == '\0' ) {
 103                 return NULL;
 104         }
 105
 106         /* search list */
 107         for ( i = 0; i < MAX_MODELS; i++ )
 108         {
 109                 if ( picoModels[ i ] != NULL &&
 110                          !strcmp( PicoGetModelName( picoModels[ i ] ), name ) &&
 111                          PicoGetModelFrameNum( picoModels[ i ] ) == frame ) {
 112                         return picoModels[ i ];
 113                 }
 114         }
 115
 116         /* no matching picoModel found */
 117         return NULL;
 118 }
 119
 120
 121
 122 /*
 123    LoadModel() - ydnar
 124    loads a picoModel and returns a pointer to the picoModel_t struct or NULL if not found
 125  */
 126
 127 picoModel_t *LoadModel( const char *name, int frame ){
 128         int i;
 129         picoModel_t     *model, **pm;
 130
 131
 132         /* init */
 133         if ( numPicoModels <= 0 ) {
 134                 memset( picoModels, 0, sizeof( picoModels ) );
 135         }
 136
 137         /* dummy check */
 138         if ( name == NULL || name[ 0 ] == '\0' ) {
 139                 return NULL;
 140         }
 141
 142         /* try to find existing picoModel */
 143         model = FindModel( name, frame );
 144         if ( model != NULL ) {
 145                 return model;
 146         }
 147
 148         /* none found, so find first non-null picoModel */
 149         pm = NULL;
 150         for ( i = 0; i < MAX_MODELS; i++ )
 151         {
 152                 if ( picoModels[ i ] == NULL ) {
 153                         pm = &picoModels[ i ];
 154                         break;
 155                 }
 156         }
 157
 158         /* too many picoModels? */
 159         if ( pm == NULL ) {
 160                 Error( "MAX_MODELS (%d) exceeded, there are too many model files referenced by the map.", MAX_MODELS );
 161         }
 162
 163         /* attempt to parse model */
 164         *pm = PicoLoadModel( name, frame );
 165
 166         /* if loading failed, make a bogus model to silence the rest of the warnings */
 167         if ( *pm == NULL ) {
 168                 /* allocate a new model */
 169                 *pm = PicoNewModel();
 170                 if ( *pm == NULL ) {
 171                         return NULL;
 172                 }
 173
 174                 /* set data */
 175                 PicoSetModelName( *pm, name );
 176                 PicoSetModelFrameNum( *pm, frame );
 177         }
 178
 179         /* debug code */
 180         #if 0
 181         {
 182                 int numSurfaces, numVertexes;
 183                 picoSurface_t   *ps;
 184
 185
 186                 Sys_Printf( "Model %s\n", name );
 187                 numSurfaces = PicoGetModelNumSurfaces( *pm );
 188                 for ( i = 0; i < numSurfaces; i++ )
 189                 {
 190                         ps = PicoGetModelSurface( *pm, i );
 191                         numVertexes = PicoGetSurfaceNumVertexes( ps );
 192                         Sys_Printf( "Surface %d has %d vertexes\n", i, numVertexes );
 193                 }
 194         }
 195         #endif
 196
 197         /* set count */
 198         if ( *pm != NULL ) {
 199                 numPicoModels++;
 200         }
 201
 202         /* return the picoModel */
 203         return *pm;
 204 }
 205
 206
 207
 208 /*
 209    InsertModel() - ydnar
 210    adds a picomodel into the bsp
 211  */
 212
 213 void InsertModel( const char *name, int skin, int frame, m4x4_t transform, remap_t *remap, shaderInfo_t *celShader, int eNum, int castShadows, int recvShadows, int spawnFlags, float lightmapScale, int lightmapSampleSize, float shadeAngle, float clipDepth ){
 214         int i, j, s, k, numSurfaces;
 215         m4x4_t identity, nTransform;
 216         picoModel_t         *model;
 217         picoShader_t        *shader;
 218         picoSurface_t       *surface;
 219         shaderInfo_t        *si;
 220         mapDrawSurface_t    *ds;
 221         bspDrawVert_t       *dv;
 222         char                *picoShaderName;
 223         char shaderName[ MAX_QPATH ];
 224         picoVec_t           *xyz, *normal, *st;
 225         byte                *color;
 226         picoIndex_t         *indexes;
 227         remap_t             *rm, *glob;
 228         skinfile_t          *sf, *sf2;
 229         char skinfilename[ MAX_QPATH ];
 230         char                *skinfilecontent;
 231         int skinfilesize;
 232         char                *skinfileptr, *skinfilenextptr;
 233         //int ok=0, notok=0;
 234         int spf = ( spawnFlags & 8088 );
 235         float limDepth=0;
 236
 237
 238         if ( clipDepth < 0 ){
 239                 limDepth = -clipDepth;
 240                 clipDepth = 2.0;
 241         }
 242
 243
 244         /* get model */
 245         model = LoadModel( name, frame );
 246         if ( model == NULL ) {
 247                 return;
 248         }
 249
 250         /* load skin file */
 251         snprintf( skinfilename, sizeof( skinfilename ), "%s_%d.skin", name, skin );
 252         skinfilename[sizeof( skinfilename ) - 1] = 0;
 253         skinfilesize = vfsLoadFile( skinfilename, (void**) &skinfilecontent, 0 );
 254         if ( skinfilesize < 0 && skin != 0 ) {
 255                 /* fallback to skin 0 if invalid */
 256                 snprintf( skinfilename, sizeof( skinfilename ), "%s_0.skin", name );
 257                 skinfilename[sizeof( skinfilename ) - 1] = 0;
 258                 skinfilesize = vfsLoadFile( skinfilename, (void**) &skinfilecontent, 0 );
 259                 if ( skinfilesize >= 0 ) {
 260                         Sys_Printf( "Skin %d of %s does not exist, using 0 instead\n", skin, name );
 261                 }
 262         }
 263         sf = NULL;
 264         if ( skinfilesize >= 0 ) {
 265                 Sys_Printf( "Using skin %d of %s\n", skin, name );
 266                 int pos;
 267                 for ( skinfileptr = skinfilecontent; *skinfileptr; skinfileptr = skinfilenextptr )
 268                 {
 269                         // for fscanf
 270                         char format[64];
 271
 272                         skinfilenextptr = strchr( skinfileptr, '\r' );
 273                         if ( skinfilenextptr ) {
 274                                 *skinfilenextptr++ = 0;
 275                         }
 276                         else
 277                         {
 278                                 skinfilenextptr = strchr( skinfileptr, '\n' );
 279                                 if ( skinfilenextptr ) {
 280                                         *skinfilenextptr++ = 0;
 281                                 }
 282                                 else{
 283                                         skinfilenextptr = skinfileptr + strlen( skinfileptr );
 284                                 }
 285                         }
 286
 287                         /* create new item */
 288                         sf2 = sf;
 289                         sf = safe_malloc( sizeof( *sf ) );
 290                         sf->next = sf2;
 291
 292                         sprintf( format, "replace %%%ds %%%ds", (int)sizeof( sf->name ) - 1, (int)sizeof( sf->to ) - 1 );
 293                         if ( sscanf( skinfileptr, format, sf->name, sf->to ) == 2 ) {
 294                                 continue;
 295                         }
 296                         sprintf( format, " %%%d[^,  ] ,%%%ds", (int)sizeof( sf->name ) - 1, (int)sizeof( sf->to ) - 1 );
 297                         if ( ( pos = sscanf( skinfileptr, format, sf->name, sf->to ) ) == 2 ) {
 298                                 continue;
 299                         }
 300
 301                         /* invalid input line -> discard sf struct */
 302                         Sys_Printf( "Discarding skin directive in %s: %s\n", skinfilename, skinfileptr );
 303                         free( sf );
 304                         sf = sf2;
 305                 }
 306                 free( skinfilecontent );
 307         }
 308
 309         /* handle null matrix */
 310         if ( transform == NULL ) {
 311                 m4x4_identity( identity );
 312                 transform = identity;
 313         }
 314
 315         /* hack: Stable-1_2 and trunk have differing row/column major matrix order
 316            this transpose is necessary with Stable-1_2
 317            uncomment the following line with old m4x4_t (non 1.3/spog_branch) code */
 318         //%     m4x4_transpose( transform );
 319
 320         /* create transform matrix for normals */
 321         memcpy( nTransform, transform, sizeof( m4x4_t ) );
 322         if ( m4x4_invert( nTransform ) ) {
 323                 Sys_FPrintf( SYS_VRB, "WARNING: Can't invert model transform matrix, using transpose instead\n" );
 324         }
 325         m4x4_transpose( nTransform );
 326
 327         /* fix bogus lightmap scale */
 328         if ( lightmapScale <= 0.0f ) {
 329                 lightmapScale = 1.0f;
 330         }
 331
 332         /* fix bogus shade angle */
 333         if ( shadeAngle <= 0.0f ) {
 334                 shadeAngle = 0.0f;
 335         }
 336
 337         /* each surface on the model will become a new map drawsurface */
 338         numSurfaces = PicoGetModelNumSurfaces( model );
 339         //%     Sys_FPrintf( SYS_VRB, "Model %s has %d surfaces\n", name, numSurfaces );
 340         for ( s = 0; s < numSurfaces; s++ )
 341         {
 342                 /* get surface */
 343                 surface = PicoGetModelSurface( model, s );
 344                 if ( surface == NULL ) {
 345                         continue;
 346                 }
 347
 348                 /* only handle triangle surfaces initially (fixme: support patches) */
 349                 if ( PicoGetSurfaceType( surface ) != PICO_TRIANGLES ) {
 350                         continue;
 351                 }
 352
 353                 /* get shader name */
 354                 shader = PicoGetSurfaceShader( surface );
 355                 if ( shader == NULL ) {
 356                         picoShaderName = "";
 357                 }
 358                 else{
 359                         picoShaderName = PicoGetShaderName( shader );
 360                 }
 361
 362                 /* handle .skin file */
 363                 if ( sf ) {
 364                         picoShaderName = NULL;
 365                         for ( sf2 = sf; sf2 != NULL; sf2 = sf2->next )
 366                         {
 367                                 if ( !Q_stricmp( surface->name, sf2->name ) ) {
 368                                         Sys_FPrintf( SYS_VRB, "Skin file: mapping %s to %s\n", surface->name, sf2->to );
 369                                         picoShaderName = sf2->to;
 370                                         break;
 371                                 }
 372                         }
 373                         if ( !picoShaderName ) {
 374                                 Sys_FPrintf( SYS_VRB, "Skin file: not mapping %s\n", surface->name );
 375                                 continue;
 376                         }
 377                 }
 378
 379                 /* handle shader remapping */
 380                 glob = NULL;
 381                 for ( rm = remap; rm != NULL; rm = rm->next )
 382                 {
 383                         if ( rm->from[ 0 ] == '*' && rm->from[ 1 ] == '\0' ) {
 384                                 glob = rm;
 385                         }
 386                         else if ( !Q_stricmp( picoShaderName, rm->from ) ) {
 387                                 Sys_FPrintf( SYS_VRB, "Remapping %s to %s\n", picoShaderName, rm->to );
 388                                 picoShaderName = rm->to;
 389                                 glob = NULL;
 390                                 break;
 391                         }
 392                 }
 393
 394                 if ( glob != NULL ) {
 395                         Sys_FPrintf( SYS_VRB, "Globbing %s to %s\n", picoShaderName, glob->to );
 396                         picoShaderName = glob->to;
 397                 }
 398
 399                 /* shader renaming for sof2 */
 400                 if ( renameModelShaders ) {
 401                         strcpy( shaderName, picoShaderName );
 402                         StripExtension( shaderName );
 403                         if ( spawnFlags & 1 ) {
 404                                 strcat( shaderName, "_RMG_BSP" );
 405                         }
 406                         else{
 407                                 strcat( shaderName, "_BSP" );
 408                         }
 409                         si = ShaderInfoForShader( shaderName );
 410                 }
 411                 else{
 412                         si = ShaderInfoForShader( picoShaderName );
 413                 }
 414
 415                 /* allocate a surface (ydnar: gs mods) */
 416                 ds = AllocDrawSurface( SURFACE_TRIANGLES );
 417                 ds->entityNum = eNum;
 418                 ds->castShadows = castShadows;
 419                 ds->recvShadows = recvShadows;
 420
 421                 /* set shader */
 422                 ds->shaderInfo = si;
 423
 424                 /* force to meta? */
 425                 if ( ( si != NULL && si->forceMeta ) || ( spawnFlags & 4 ) ) { /* 3rd bit */
 426                         ds->type = SURFACE_FORCED_META;
 427                 }
 428
 429                 /* fix the surface's normals (jal: conditioned by shader info) */
 430                 if ( !( spawnFlags & 64 ) && ( shadeAngle == 0.0f || ds->type != SURFACE_FORCED_META ) ) {
 431                         PicoFixSurfaceNormals( surface );
 432                 }
 433
 434                 /* set sample size */
 435                 if ( lightmapSampleSize > 0.0f ) {
 436                         ds->sampleSize = lightmapSampleSize;
 437                 }
 438
 439                 /* set lightmap scale */
 440                 if ( lightmapScale > 0.0f ) {
 441                         ds->lightmapScale = lightmapScale;
 442                 }
 443
 444                 /* set shading angle */
 445                 if ( shadeAngle > 0.0f ) {
 446                         ds->shadeAngleDegrees = shadeAngle;
 447                 }
 448
 449                 /* set particulars */
 450                 ds->numVerts = PicoGetSurfaceNumVertexes( surface );
 451                 ds->verts = safe_malloc( ds->numVerts * sizeof( ds->verts[ 0 ] ) );
 452                 memset( ds->verts, 0, ds->numVerts * sizeof( ds->verts[ 0 ] ) );
 453
 454                 ds->numIndexes = PicoGetSurfaceNumIndexes( surface );
 455                 ds->indexes = safe_malloc( ds->numIndexes * sizeof( ds->indexes[ 0 ] ) );
 456                 memset( ds->indexes, 0, ds->numIndexes * sizeof( ds->indexes[ 0 ] ) );
 457
 458                 /* copy vertexes */
 459                 for ( i = 0; i < ds->numVerts; i++ )
 460                 {
 461                         /* get vertex */
 462                         dv = &ds->verts[ i ];
 463
 464                         /* xyz and normal */
 465                         xyz = PicoGetSurfaceXYZ( surface, i );
 466                         VectorCopy( xyz, dv->xyz );
 467                         m4x4_transform_point( transform, dv->xyz );
 468
 469                         normal = PicoGetSurfaceNormal( surface, i );
 470                         VectorCopy( normal, dv->normal );
 471                         m4x4_transform_normal( nTransform, dv->normal );
 472                         VectorNormalize( dv->normal, dv->normal );
 473
 474                         /* ydnar: tek-fu celshading support for flat shaded shit */
 475                         if ( flat ) {
 476                                 dv->st[ 0 ] = si->stFlat[ 0 ];
 477                                 dv->st[ 1 ] = si->stFlat[ 1 ];
 478                         }
 479
 480                         /* ydnar: gs mods: added support for explicit shader texcoord generation */
 481                         else if ( si->tcGen ) {
 482                                 /* project the texture */
 483                                 dv->st[ 0 ] = DotProduct( si->vecs[ 0 ], dv->xyz );
 484                                 dv->st[ 1 ] = DotProduct( si->vecs[ 1 ], dv->xyz );
 485                         }
 486
 487                         /* normal texture coordinates */
 488                         else
 489                         {
 490                                 st = PicoGetSurfaceST( surface, 0, i );
 491                                 dv->st[ 0 ] = st[ 0 ];
 492                                 dv->st[ 1 ] = st[ 1 ];
 493                         }
 494
 495                         /* set lightmap/color bits */
 496                         color = PicoGetSurfaceColor( surface, 0, i );
 497                         for ( j = 0; j < MAX_LIGHTMAPS; j++ )
 498                         {
 499                                 dv->lightmap[ j ][ 0 ] = 0.0f;
 500                                 dv->lightmap[ j ][ 1 ] = 0.0f;
 501                                 if ( spawnFlags & 32 ) { // spawnflag 32: model color -> alpha hack
 502                                         dv->color[ j ][ 0 ] = 255.0f;
 503                                         dv->color[ j ][ 1 ] = 255.0f;
 504                                         dv->color[ j ][ 2 ] = 255.0f;
 505                                         dv->color[ j ][ 3 ] = RGBTOGRAY( color );
 506                                 }
 507                                 else
 508                                 {
 509                                         dv->color[ j ][ 0 ] = color[ 0 ];
 510                                         dv->color[ j ][ 1 ] = color[ 1 ];
 511                                         dv->color[ j ][ 2 ] = color[ 2 ];
 512                                         dv->color[ j ][ 3 ] = color[ 3 ];
 513                                 }
 514                         }
 515                 }
 516
 517                 /* copy indexes */
 518                 indexes = PicoGetSurfaceIndexes( surface, 0 );
 519                 for ( i = 0; i < ds->numIndexes; i++ )
 520                         ds->indexes[ i ] = indexes[ i ];
 521
 522                 /* set cel shader */
 523                 ds->celShader = celShader;
 524
 525                 /* ydnar: giant hack land: generate clipping brushes for model triangles */
 526                 if ( ( si->clipModel && !( spf ) ) ||   //default CLIPMODEL
 527                         ( ( spawnFlags & 8090 ) == 2 ) ||       //default CLIPMODEL
 528                         ( spf == 8 ) ||         //EXTRUDE_FACE_NORMALS
 529                         ( spf == 16 )   ||      //EXTRUDE_TERRAIN
 530                         ( spf == 128 )  ||      //EXTRUDE_VERTEX_NORMALS
 531                         ( spf == 256 )  ||      //PYRAMIDAL_CLIP
 532                         ( spf == 512 )  ||      //EXTRUDE_DOWNWARDS
 533                         ( spf == 1024 ) ||      //EXTRUDE_UPWARDS
 534                         ( spf == 4096 ) ||      //default CLIPMODEL + AXIAL_BACKPLANE
 535                         ( spf == 264 )  ||      //EXTRUDE_FACE_NORMALS+PYRAMIDAL_CLIP (extrude 45)
 536                         ( spf == 2064 ) ||      //EXTRUDE_TERRAIN+MAX_EXTRUDE
 537                         ( spf == 4112 ) ||      //EXTRUDE_TERRAIN+AXIAL_BACKPLANE
 538                         ( spf == 384 )  ||      //EXTRUDE_VERTEX_NORMALS + PYRAMIDAL_CLIP - vertex normals + don't check for sides, sticking outwards
 539                         ( spf == 4352 ) ||      //PYRAMIDAL_CLIP+AXIAL_BACKPLANE
 540                         ( spf == 1536 ) ||      //EXTRUDE_DOWNWARDS+EXTRUDE_UPWARDS
 541                         ( spf == 2560 ) ||      //EXTRUDE_DOWNWARDS+MAX_EXTRUDE
 542                         ( spf == 4608 ) ||      //EXTRUDE_DOWNWARDS+AXIAL_BACKPLANE
 543                         ( spf == 3584 ) ||      //EXTRUDE_DOWNWARDS+EXTRUDE_UPWARDS+MAX_EXTRUDE
 544                         ( spf == 5632 ) ||      //EXTRUDE_DOWNWARDS+EXTRUDE_UPWARDS+AXIAL_BACKPLANE
 545                         ( spf == 3072 ) ||      //EXTRUDE_UPWARDS+MAX_EXTRUDE
 546                         ( spf == 5120 ) ){      //EXTRUDE_UPWARDS+AXIAL_BACKPLANE
 547                         vec3_t points[ 4 ], cnt, bestNormal, nrm, Vnorm[3], Enorm[3];
 548                         vec4_t plane, reverse, p[3];
 549                         double normalEpsilon_save;
 550                         qboolean snpd;
 551                         vec3_t min = { 999999, 999999, 999999 }, max = { -999999, -999999, -999999 };
 552                         vec3_t avgDirection = { 0, 0, 0 };
 553                         int axis;
 554                         #define nonax_clip_dbg 0
 555
 556                         /* temp hack */
 557                         if ( !si->clipModel && !( si->compileFlags & C_SOLID ) ) {
 558                                 continue;
 559                         }
 560
 561                         //wont snap these in normal way, or will explode
 562                         normalEpsilon_save = normalEpsilon;
 563                         //normalEpsilon = 0.000001;
 564
 565
 566                         //MAX_EXTRUDE or EXTRUDE_TERRAIN
 567                         if ( ( spawnFlags & 2048 ) || ( spawnFlags & 16 ) ){
 568
 569                                 for ( i = 0; i < ds->numIndexes; i += 3 )
 570                                 {
 571                                         for ( j = 0; j < 3; j++ )
 572                                         {
 573                                                 dv = &ds->verts[ ds->indexes[ i + j ] ];
 574                                                 VectorCopy( dv->xyz, points[ j ] );
 575                                         }
 576                                         if ( PlaneFromPoints( plane, points[ 0 ], points[ 1 ], points[ 2 ] ) ){
 577                                                 if ( spawnFlags & 16 ) VectorAdd( avgDirection, plane, avgDirection );  //calculate average mesh facing direction
 578
 579                                                 //get min/max
 580                                                 for ( k = 2; k > -1; k-- ){
 581                                                         if ( plane[k] > 0 ){
 582                                                                 for ( j = 0; j < 3; j++ ){ if ( points[j][k] < min[k] ) min[k] = points[j][k]; }
 583                                                         }
 584                                                         else if ( plane[k] < 0 ){
 585                                                                 for ( j = 0; j < 3; j++ ){ if ( points[j][k] > max[k] ) max[k] = points[j][k]; }
 586                                                         }
 587                                                         //if EXTRUDE_DOWNWARDS or EXTRUDE_UPWARDS
 588                                                         if ( ( spawnFlags & 512 ) || ( spawnFlags & 1024 ) ){
 589                                                                 break;
 590                                                         }
 591                                                 }
 592                                         }
 593                                 }
 594                                 //unify avg direction
 595                                 if ( spawnFlags & 16 ){
 596                                         for ( j = 0; j < 3; j++ ){
 597                                                 if ( fabs(avgDirection[j]) > fabs(avgDirection[(j+1)%3]) ){
 598                                                         avgDirection[(j+1)%3] = 0.0;
 599                                                         axis = j;
 600                                                 }
 601                                                 else {
 602                                                         avgDirection[j] = 0.0;
 603                                                 }
 604                                         }
 605                                         if ( VectorNormalize( avgDirection, avgDirection ) == 0 ){
 606                                                 axis = 2;
 607                                                 VectorSet( avgDirection, 0, 0, 1 );
 608                                         }
 609                                 }
 610                         }
 611
 612                         /* walk triangle list */
 613                         for ( i = 0; i < ds->numIndexes; i += 3 )
 614                         {
 615                                 /* overflow hack */
 616                                 AUTOEXPAND_BY_REALLOC( mapplanes, ( nummapplanes + 64 ) << 1, allocatedmapplanes, 1024 );
 617
 618                                 /* make points */
 619                                 for ( j = 0; j < 3; j++ )
 620                                 {
 621                                         /* get vertex */
 622                                         dv = &ds->verts[ ds->indexes[ i + j ] ];
 623
 624                                         /* copy xyz */
 625                                         VectorCopy( dv->xyz, points[ j ] );
 626                                 }
 627
 628                                 /* make plane for triangle */
 629                                 if ( PlaneFromPoints( plane, points[ 0 ], points[ 1 ], points[ 2 ] ) ) {
 630
 631                                         /* build a brush */
 632                                         buildBrush = AllocBrush( 48 );
 633                                         buildBrush->entityNum = mapEntityNum;
 634                                         buildBrush->original = buildBrush;
 635                                         buildBrush->contentShader = si;
 636                                         buildBrush->compileFlags = si->compileFlags;
 637                                         buildBrush->contentFlags = si->contentFlags;
 638                                         buildBrush->detail = qtrue;
 639
 640                                         //snap points before using them for further calculations
 641                                         //precision suffers a lot, when two of normal values are under .00025 (often no collision, knocking up effect in ioq3)
 642                                         //also broken drawsurfs in case of normal brushes
 643                                         snpd = qfalse;
 644                                         for ( j=0; j<3; j++ )
 645                                         {
 646                                                 if ( fabs(plane[j]) < 0.00025 && fabs(plane[(j+1)%3]) < 0.00025 && ( plane[j] != 0.0 || plane[(j+1)%3] != 0.0 ) ){
 647                                                         VectorAdd( points[ 0 ], points[ 1 ], cnt );
 648                                                         VectorAdd( cnt, points[ 2 ], cnt );
 649                                                         VectorScale( cnt, 0.3333333333333f, cnt );
 650                                                         points[0][(j+2)%3]=points[1][(j+2)%3]=points[2][(j+2)%3]=cnt[(j+2)%3];
 651                                                         snpd = qtrue;
 652                                                         break;
 653                                                 }
 654                                         }
 655
 656                                         //snap pairs of points to prevent bad side planes
 657                                         for ( j=0; j<3; j++ )
 658                                         {
 659                                                 VectorSubtract( points[j], points[(j+1)%3], nrm );
 660                                                 VectorNormalize( nrm, nrm );
 661                                                 for ( k=0; k<3; k++ )
 662                                                 {
 663                                                         if ( nrm[k] != 0.0 && fabs(nrm[k]) < 0.00025 ){
 664                                                                 //Sys_Printf( "b4(%6.6f %6.6f %6.6f)(%6.6f %6.6f %6.6f)\n", points[j][0], points[j][1], points[j][2], points[(j+1)%3][0], points[(j+1)%3][1], points[(j+1)%3][2] );
 665                                                                 points[j][k]=points[(j+1)%3][k] = ( points[j][k] + points[(j+1)%3][k] ) / 2.0;
 666                                                                 //Sys_Printf( "sn(%6.6f %6.6f %6.6f)(%6.6f %6.6f %6.6f)\n", points[j][0], points[j][1], points[j][2], points[(j+1)%3][0], points[(j+1)%3][1], points[(j+1)%3][2] );
 667                                                                 snpd = qtrue;
 668                                                         }
 669                                                 }
 670                                         }
 671
 672                                         if ( snpd ) {
 673                                                 PlaneFromPoints( plane, points[ 0 ], points[ 1 ], points[ 2 ] );
 674                                                 snpd = qfalse;
 675                                         }
 676
 677                                         //vector-is-close-to-be-on-axis check again, happens after previous code sometimes
 678                                         for ( j=0; j<3; j++ )
 679                                         {
 680                                                 if ( fabs(plane[j]) < 0.00025 && fabs(plane[(j+1)%3]) < 0.00025 && ( plane[j] != 0.0 || plane[(j+1)%3] != 0.0 ) ){
 681                                                         VectorAdd( points[ 0 ], points[ 1 ], cnt );
 682                                                         VectorAdd( cnt, points[ 2 ], cnt );
 683                                                         VectorScale( cnt, 0.3333333333333f, cnt );
 684                                                         points[0][(j+2)%3]=points[1][(j+2)%3]=points[2][(j+2)%3]=cnt[(j+2)%3];
 685                                                         PlaneFromPoints( plane, points[ 0 ], points[ 1 ], points[ 2 ] );
 686                                                         break;
 687                                                 }
 688                                         }
 689
 690                                         //snap single snappable normal components
 691                                         for ( j=0; j<3; j++ )
 692                                         {
 693                                                 if ( plane[j] != 0.0 && fabs(plane[j]) < 0.00005 ){
 694                                                         plane[j]=0.0;
 695                                                         snpd = qtrue;
 696                                                 }
 697                                         }
 698
 699                                         //adjust plane dist
 700                                         if ( snpd ) {
 701                                                 VectorAdd( points[ 0 ], points[ 1 ], cnt );
 702                                                 VectorAdd( cnt, points[ 2 ], cnt );
 703                                                 VectorScale( cnt, 0.3333333333333f, cnt );
 704                                                 VectorNormalize( plane, plane );
 705                                                 plane[3] = DotProduct( plane, cnt );
 706
 707                                                 //project points to resulting plane to keep intersections precision
 708                                                 for ( j=0; j<3; j++ )
 709                                                 {
 710                                                         //Sys_Printf( "b4 %i (%6.7f %6.7f %6.7f)\n", j, points[j][0], points[j][1], points[j][2] );
 711                                                         VectorMA( points[j], plane[3] - DotProduct( plane, points[j]), plane, points[j] );
 712                                                         //Sys_Printf( "sn %i (%6.7f %6.7f %6.7f)\n", j, points[j][0], points[j][1], points[j][2] );
 713                                                 }
 714                                                 //Sys_Printf( "sn pln (%6.7f %6.7f %6.7f %6.7f)\n", plane[0], plane[1], plane[2], plane[3] );
 715                                                 //PlaneFromPoints( plane, points[ 0 ], points[ 1 ], points[ 2 ] );
 716                                                 //Sys_Printf( "pts pln (%6.7f %6.7f %6.7f %6.7f)\n", plane[0], plane[1], plane[2], plane[3] );
 717                                         }
 718
 719
 720                                         if ( spf == 4352 ){     //PYRAMIDAL_CLIP+AXIAL_BACKPLANE
 721
 722                                                 for ( j=0; j<3; j++ )
 723                                                 {
 724                                                         if ( fabs(plane[j]) < 0.05 && fabs(plane[(j+1)%3]) < 0.05 ){ //no way, close to lay on two axises
 725                                                                 goto default_CLIPMODEL;
 726                                                         }
 727                                                 }
 728
 729                                                 // best axial normal
 730                                                 VectorCopy( plane, bestNormal );
 731                                                 for ( j = 0; j < 3; j++ ){
 732                                                         if ( fabs(bestNormal[j]) > fabs(bestNormal[(j+1)%3]) ){
 733                                                                 bestNormal[(j+1)%3] = 0.0;
 734                                                                 axis = j;
 735                                                         }
 736                                                         else {
 737                                                                 bestNormal[j] = 0.0;
 738                                                         }
 739                                                 }
 740                                                 VectorNormalize( bestNormal, bestNormal );
 741
 742
 743                                                 float bestdist, currdist, bestangle, currangle, mindist = 999999;
 744
 745                                                 for ( j = 0; j < 3; j++ ){//planes
 746                                                         bestdist = 999999;
 747                                                         bestangle = 1;
 748                                                         for ( k = 0; k < 3; k++ ){//axises
 749                                                                 VectorSubtract( points[ (j+1)%3 ], points[ j ], nrm );
 750                                                                 if ( k == axis ){
 751                                                                         CrossProduct( bestNormal, nrm, reverse );
 752                                                                 }
 753                                                                 else{
 754                                                                         VectorClear( Vnorm[0] );
 755                                                                         if ( (k+1)%3 == axis ){
 756                                                                                 if ( nrm[ (k+2)%3 ] == 0 ) continue;
 757                                                                                 Vnorm[0][ (k+2)%3 ] = nrm[ (k+2)%3 ];
 758                                                                         }
 759                                                                         else{
 760                                                                                 if ( nrm[ (k+1)%3 ] == 0 ) continue;
 761                                                                                 Vnorm[0][ (k+1)%3 ] = nrm[ (k+1)%3 ];
 762                                                                         }
 763                                                                         CrossProduct( bestNormal, Vnorm[0], Enorm[0] );
 764                                                                         CrossProduct( Enorm[0], nrm, reverse );
 765                                                                 }
 766                                                                 VectorNormalize( reverse, reverse );
 767                                                                 reverse[3] = DotProduct( points[ j ], reverse );
 768                                                                 //check facing, thickness
 769                                                                 currdist = reverse[3] - DotProduct( reverse, points[ (j+2)%3 ] );
 770                                                                 currangle = DotProduct( reverse, plane );
 771                                                                 if ( ( ( currdist > 0.1 ) && ( currdist < bestdist ) && ( currangle < 0 ) ) ||
 772                                                                         ( ( currangle >= 0 ) && ( currangle <= bestangle ) ) ){
 773                                                                         bestangle = currangle;
 774                                                                         if ( currangle < 0 ) bestdist = currdist;
 775                                                                         VectorCopy( reverse, p[j] );
 776                                                                         p[j][3] = reverse[3];
 777                                                                 }
 778                                                         }
 779                                                         //if ( bestdist == 999999 && bestangle == 1 ) Sys_Printf("default_CLIPMODEL\n");
 780                                                         if ( bestdist == 999999 && bestangle == 1 ) goto default_CLIPMODEL;
 781                                                         if ( bestdist < mindist ) mindist = bestdist;
 782                                                 }
 783                                                 if ( (limDepth != 0.0) && (mindist > limDepth) ) goto default_CLIPMODEL;
 784
 785
 786 #if nonax_clip_dbg
 787                                                 for ( j = 0; j < 3; j++ )
 788                                                 {
 789                                                         for ( k = 0; k < 3; k++ )
 790                                                         {
 791                                                                 if ( fabs(p[j][k]) < 0.00025 && p[j][k] != 0.0 ){
 792                                                                         Sys_Printf( "nonax nrm %6.17f %6.17f %6.17f\n", p[j][0], p[j][1], p[j][2] );
 793                                                                 }
 794                                                         }
 795                                                 }
 796 #endif
 797                                                 /* set up brush sides */
 798                                                 buildBrush->numsides = 4;
 799                                                 buildBrush->sides[ 0 ].shaderInfo = si;
 800                                                 for ( j = 1; j < buildBrush->numsides; j++ ) {
 801                                                         if ( debugClip ) {
 802                                                                 buildBrush->sides[ 0 ].shaderInfo = ShaderInfoForShader( "debugclip2" );
 803                                                                 buildBrush->sides[ j ].shaderInfo = ShaderInfoForShader( "debugclip" );
 804                                                         }
 805                                                         else {
 806                                                                 buildBrush->sides[ j ].shaderInfo = NULL;  // don't emit these faces as draw surfaces, should make smaller BSPs; hope this works
 807                                                         }
 808                                                 }
 809                                                 VectorCopy( points[0], points[3] ); // for cyclic usage
 810
 811                                                 buildBrush->sides[ 0 ].planenum = FindFloatPlane( plane, plane[ 3 ], 3, points );
 812                                                 buildBrush->sides[ 1 ].planenum = FindFloatPlane( p[0], p[0][ 3 ], 2, &points[ 0 ] ); // p[0] contains points[0] and points[1]
 813                                                 buildBrush->sides[ 2 ].planenum = FindFloatPlane( p[1], p[1][ 3 ], 2, &points[ 1 ] ); // p[1] contains points[1] and points[2]
 814                                                 buildBrush->sides[ 3 ].planenum = FindFloatPlane( p[2], p[2][ 3 ], 2, &points[ 2 ] ); // p[2] contains points[2] and points[0] (copied to points[3]
 815                                         }
 816
 817
 818                                         else if ( ( spf == 16 ) ||      //EXTRUDE_TERRAIN
 819                                                 ( spf == 512 ) ||       //EXTRUDE_DOWNWARDS
 820                                                 ( spf == 1024 ) ||      //EXTRUDE_UPWARDS
 821                                                 ( spf == 4096 ) ||      //default CLIPMODEL + AXIAL_BACKPLANE
 822                                                 ( spf == 2064 ) ||      //EXTRUDE_TERRAIN+MAX_EXTRUDE
 823                                                 ( spf == 4112 ) ||      //EXTRUDE_TERRAIN+AXIAL_BACKPLANE
 824                                                 ( spf == 1536 ) ||      //EXTRUDE_DOWNWARDS+EXTRUDE_UPWARDS
 825                                                 ( spf == 2560 ) ||      //EXTRUDE_DOWNWARDS+MAX_EXTRUDE
 826                                                 ( spf == 4608 ) ||      //EXTRUDE_DOWNWARDS+AXIAL_BACKPLANE
 827                                                 ( spf == 3584 ) ||      //EXTRUDE_DOWNWARDS+EXTRUDE_UPWARDS+MAX_EXTRUDE
 828                                                 ( spf == 5632 ) ||      //EXTRUDE_DOWNWARDS+EXTRUDE_UPWARDS+AXIAL_BACKPLANE
 829                                                 ( spf == 3072 ) ||      //EXTRUDE_UPWARDS+MAX_EXTRUDE
 830                                                 ( spf == 5120 ) ){      //EXTRUDE_UPWARDS+AXIAL_BACKPLANE
 831
 832                                                 if ( spawnFlags & 16 ){ //autodirection
 833                                                         VectorCopy( avgDirection, bestNormal );
 834                                                 }
 835                                                 else{
 836                                                         axis = 2;
 837                                                         if ( ( spawnFlags & 1536 ) == 1536 ){ //up+down
 838                                                                 VectorSet( bestNormal, 0, 0, ( plane[2] >= 0 ? 1 : -1 ) );
 839                                                         }
 840                                                         else if ( spawnFlags & 512 ){ //down
 841                                                                 VectorSet( bestNormal, 0, 0, 1 );
 842
 843                                                         }
 844                                                         else if ( spawnFlags & 1024 ){ //up
 845                                                                 VectorSet( bestNormal, 0, 0, -1 );
 846                                                         }
 847                                                         else{ // best axial normal
 848                                                                 VectorCopy( plane, bestNormal );
 849                                                                 for ( j = 0; j < 3; j++ ){
 850                                                                         if ( fabs(bestNormal[j]) > fabs(bestNormal[(j+1)%3]) ){
 851                                                                                 bestNormal[(j+1)%3] = 0.0;
 852                                                                                 axis = j;
 853                                                                         }
 854                                                                         else {
 855                                                                                 bestNormal[j] = 0.0;
 856                                                                         }
 857                                                                 }
 858                                                                 VectorNormalize( bestNormal, bestNormal );
 859                                                         }
 860                                                 }
 861
 862                                                 if ( DotProduct( plane, bestNormal ) < 0.05 ){
 863                                                         goto default_CLIPMODEL;
 864                                                 }
 865
 866
 867                                                 /* make side planes */
 868                                                 for ( j = 0; j < 3; j++ )
 869                                                 {
 870                                                         VectorSubtract( points[(j+1)%3], points[ j ], nrm );
 871                                                         CrossProduct( bestNormal, nrm, p[ j ] );
 872                                                         VectorNormalize( p[ j ], p[ j ] );
 873                                                         p[j][3] = DotProduct( points[j], p[j] );
 874                                                 }
 875
 876                                                 /* make back plane */
 877                                                 if ( spawnFlags & 2048 ){ //max extrude
 878                                                         VectorScale( bestNormal, -1.0f, reverse );
 879                                                         if ( bestNormal[axis] > 0 ){
 880                                                                 reverse[3] = -min[axis] + clipDepth;
 881                                                         }
 882                                                         else{
 883                                                                 reverse[3] = max[axis] + clipDepth;
 884                                                         }
 885                                                 }
 886                                                 else if ( spawnFlags & 4096 ){ //axial backplane
 887                                                         VectorScale( bestNormal, -1.0f, reverse );
 888                                                         reverse[3] = points[0][axis];
 889                                                         if ( bestNormal[axis] > 0 ){
 890                                                                 for ( j = 1; j < 3; j++ ){
 891                                                                         if ( points[j][axis] < reverse[3] ){
 892                                                                                 reverse[3] = points[j][axis];
 893                                                                         }
 894                                                                 }
 895                                                                 reverse[3] = -reverse[3] + clipDepth;
 896                                                         }
 897                                                         else{
 898                                                                 for ( j = 1; j < 3; j++ ){
 899                                                                         if ( points[j][axis] > reverse[3] ){
 900                                                                                 reverse[3] = points[j][axis];
 901                                                                         }
 902                                                                 }
 903                                                                 reverse[3] += clipDepth;
 904                                                         }
 905                                                         if (limDepth != 0.0){
 906                                                                 VectorCopy( points[0], cnt );
 907                                                                 if ( bestNormal[axis] > 0 ){
 908                                                                         for ( j = 1; j < 3; j++ ){
 909                                                                                 if ( points[j][axis] > cnt[axis] ){
 910                                                                                         VectorCopy( points[j], cnt );
 911                                                                                 }
 912                                                                         }
 913                                                                 }
 914                                                                 else {
 915                                                                         for ( j = 1; j < 3; j++ ){
 916                                                                                 if ( points[j][axis] < cnt[axis] ){
 917                                                                                         VectorCopy( points[j], cnt );
 918                                                                                 }
 919                                                                         }
 920                                                                 }
 921                                                                 VectorMA( cnt, reverse[3] - DotProduct( reverse, cnt ), reverse, cnt );
 922                                                                 if ( ( plane[3] - DotProduct( plane, cnt ) ) > limDepth ){
 923                                                                         VectorScale( plane, -1.0f, reverse );
 924                                                                         reverse[ 3 ] = -plane[ 3 ];
 925                                                                         reverse[3] += clipDepth;
 926                                                                 }
 927                                                         }
 928                                                 }
 929                                                 else{   //normal backplane
 930                                                         VectorScale( plane, -1.0f, reverse );
 931                                                         reverse[ 3 ] = -plane[ 3 ];
 932                                                         reverse[3] += clipDepth;
 933                                                 }
 934 #if nonax_clip_dbg
 935                                                 for ( j = 0; j < 3; j++ )
 936                                                 {
 937                                                         for ( k = 0; k < 3; k++ )
 938                                                         {
 939                                                                 if ( fabs(p[j][k]) < 0.00025 && p[j][k] != 0.0 ){
 940                                                                         Sys_Printf( "nonax nrm %6.17f %6.17f %6.17f\n", p[j][0], p[j][1], p[j][2] );
 941                                                                 }
 942                                                         }
 943                                                 }
 944 #endif
 945                                                 /* set up brush sides */
 946                                                 buildBrush->numsides = 5;
 947                                                 buildBrush->sides[ 0 ].shaderInfo = si;
 948                                                 for ( j = 1; j < buildBrush->numsides; j++ ) {
 949                                                         if ( debugClip ) {
 950                                                                 buildBrush->sides[ 0 ].shaderInfo = ShaderInfoForShader( "debugclip2" );
 951                                                                 buildBrush->sides[ j ].shaderInfo = ShaderInfoForShader( "debugclip" );
 952                                                         }
 953                                                         else {
 954                                                                 buildBrush->sides[ j ].shaderInfo = NULL;  // don't emit these faces as draw surfaces, should make smaller BSPs; hope this works
 955                                                         }
 956                                                 }
 957                                                 VectorCopy( points[0], points[3] ); // for cyclic usage
 958
 959                                                 buildBrush->sides[ 0 ].planenum = FindFloatPlane( plane, plane[ 3 ], 3, points );
 960                                                 buildBrush->sides[ 1 ].planenum = FindFloatPlane( p[0], p[0][ 3 ], 2, &points[ 0 ] ); // p[0] contains points[0] and points[1]
 961                                                 buildBrush->sides[ 2 ].planenum = FindFloatPlane( p[1], p[1][ 3 ], 2, &points[ 1 ] ); // p[1] contains points[1] and points[2]
 962                                                 buildBrush->sides[ 3 ].planenum = FindFloatPlane( p[2], p[2][ 3 ], 2, &points[ 2 ] ); // p[2] contains points[2] and points[0] (copied to points[3]
 963                                                 buildBrush->sides[ 4 ].planenum = FindFloatPlane( reverse, reverse[ 3 ], 0, NULL );
 964                                         }
 965
 966
 967                                         else if ( spf == 264 ){ //EXTRUDE_FACE_NORMALS+PYRAMIDAL_CLIP (extrude 45)
 968
 969                                                 //45 degrees normals for side planes
 970                                                 for ( j = 0; j < 3; j++ )
 971                                                 {
 972                                                         VectorSubtract( points[(j+1)%3], points[ j ], nrm );
 973                                                         CrossProduct( plane, nrm, Enorm[ j ] );
 974                                                         VectorNormalize( Enorm[ j ], Enorm[ j ] );
 975                                                         VectorAdd( plane, Enorm[ j ], Enorm[ j ] );
 976                                                         VectorNormalize( Enorm[ j ], Enorm[ j ] );
 977                                                         /* make side planes */
 978                                                         CrossProduct( Enorm[ j ], nrm, p[ j ] );
 979                                                         VectorNormalize( p[ j ], p[ j ] );
 980                                                         p[j][3] = DotProduct( points[j], p[j] );
 981                                                         //snap nearly axial side planes
 982                                                         snpd = qfalse;
 983                                                         for ( k = 0; k < 3; k++ )
 984                                                         {
 985                                                                 if ( fabs(p[j][k]) < 0.00025 && p[j][k] != 0.0 ){
 986                                                                         p[j][k] = 0.0;
 987                                                                         snpd = qtrue;
 988                                                                 }
 989                                                         }
 990                                                         if ( snpd ){
 991                                                                 VectorNormalize( p[j], p[j] );
 992                                                                 VectorAdd( points[j], points[(j+1)%3], cnt );
 993                                                                 VectorScale( cnt, 0.5f, cnt );
 994                                                                 p[j][3] = DotProduct( cnt, p[j] );
 995                                                         }
 996                                                 }
 997
 998                                                 /* make back plane */
 999                                                 VectorScale( plane, -1.0f, reverse );
1000                                                 reverse[ 3 ] = -plane[ 3 ];
1001                                                 reverse[3] += clipDepth;
1002
1003                                                 /* set up brush sides */
1004                                                 buildBrush->numsides = 5;
1005                                                 buildBrush->sides[ 0 ].shaderInfo = si;
1006                                                 for ( j = 1; j < buildBrush->numsides; j++ ) {
1007                                                         if ( debugClip ) {
1008                                                                 buildBrush->sides[ 0 ].shaderInfo = ShaderInfoForShader( "debugclip2" );
1009                                                                 buildBrush->sides[ j ].shaderInfo = ShaderInfoForShader( "debugclip" );
1010                                                         }
1011                                                         else {
1012                                                                 buildBrush->sides[ j ].shaderInfo = NULL;  // don't emit these faces as draw surfaces, should make smaller BSPs; hope this works
1013                                                         }
1014                                                 }
1015                                                 VectorCopy( points[0], points[3] ); // for cyclic usage
1016
1017                                                 buildBrush->sides[ 0 ].planenum = FindFloatPlane( plane, plane[ 3 ], 3, points );
1018                                                 buildBrush->sides[ 1 ].planenum = FindFloatPlane( p[0], p[0][ 3 ], 2, &points[ 0 ] ); // p[0] contains points[0] and points[1]
1019                                                 buildBrush->sides[ 2 ].planenum = FindFloatPlane( p[1], p[1][ 3 ], 2, &points[ 1 ] ); // p[1] contains points[1] and points[2]
1020                                                 buildBrush->sides[ 3 ].planenum = FindFloatPlane( p[2], p[2][ 3 ], 2, &points[ 2 ] ); // p[2] contains points[2] and points[0] (copied to points[3]
1021                                                 buildBrush->sides[ 4 ].planenum = FindFloatPlane( reverse, reverse[ 3 ], 0, NULL );
1022                                         }
1023
1024
1025                                         else if ( ( spf == 128 ) ||     //EXTRUDE_VERTEX_NORMALS
1026                                                 ( spf == 384 ) ){               //EXTRUDE_VERTEX_NORMALS + PYRAMIDAL_CLIP - vertex normals + don't check for sides, sticking outwards
1027                                                 /* get vertex normals */
1028                                                 for ( j = 0; j < 3; j++ )
1029                                                 {
1030                                                         /* get vertex */
1031                                                         dv = &ds->verts[ ds->indexes[ i + j ] ];
1032                                                         /* copy normal */
1033                                                         VectorCopy( dv->normal, Vnorm[ j ] );
1034                                                 }
1035
1036                                                 //avg normals for side planes
1037                                                 for ( j = 0; j < 3; j++ )
1038                                                 {
1039                                                         VectorAdd( Vnorm[ j ], Vnorm[ (j+1)%3 ], Enorm[ j ] );
1040                                                         VectorNormalize( Enorm[ j ], Enorm[ j ] );
1041                                                         //check fuer bad ones
1042                                                         VectorSubtract( points[(j+1)%3], points[ j ], cnt );
1043                                                         CrossProduct( plane, cnt, nrm );
1044                                                         VectorNormalize( nrm, nrm );
1045                                                         //check for negative or outside direction
1046                                                         if ( DotProduct( Enorm[ j ], plane ) > 0.1 ){
1047                                                                 if ( ( DotProduct( Enorm[ j ], nrm ) > -0.2 ) || ( spawnFlags & 256 ) ){
1048                                                                         //ok++;
1049                                                                         continue;
1050                                                                 }
1051                                                         }
1052                                                         //notok++;
1053                                                         //Sys_Printf( "faulty Enormal %i/%i\n", notok, ok );
1054                                                         //use 45 normal
1055                                                         VectorAdd( plane, nrm, Enorm[ j ] );
1056                                                         VectorNormalize( Enorm[ j ], Enorm[ j ] );
1057                                                 }
1058
1059                                                 /* make side planes */
1060                                                 for ( j = 0; j < 3; j++ )
1061                                                 {
1062                                                         VectorSubtract( points[(j+1)%3], points[ j ], nrm );
1063                                                         CrossProduct( Enorm[ j ], nrm, p[ j ] );
1064                                                         VectorNormalize( p[ j ], p[ j ] );
1065                                                         p[j][3] = DotProduct( points[j], p[j] );
1066                                                         //snap nearly axial side planes
1067                                                         snpd = qfalse;
1068                                                         for ( k = 0; k < 3; k++ )
1069                                                         {
1070                                                                 if ( fabs(p[j][k]) < 0.00025 && p[j][k] != 0.0 ){
1071                                                                         //Sys_Printf( "init plane %6.8f %6.8f %6.8f %6.8f\n", p[j][0], p[j][1], p[j][2], p[j][3]);
1072                                                                         p[j][k] = 0.0;
1073                                                                         snpd = qtrue;
1074                                                                 }
1075                                                         }
1076                                                         if ( snpd ){
1077                                                                 VectorNormalize( p[j], p[j] );
1078                                                                 //Sys_Printf( "nrm plane %6.8f %6.8f %6.8f %6.8f\n", p[j][0], p[j][1], p[j][2], p[j][3]);
1079                                                                 VectorAdd( points[j], points[(j+1)%3], cnt );
1080                                                                 VectorScale( cnt, 0.5f, cnt );
1081                                                                 p[j][3] = DotProduct( cnt, p[j] );
1082                                                                 //Sys_Printf( "dst plane %6.8f %6.8f %6.8f %6.8f\n", p[j][0], p[j][1], p[j][2], p[j][3]);
1083                                                         }
1084                                                 }
1085
1086                                                 /* make back plane */
1087                                                 VectorScale( plane, -1.0f, reverse );
1088                                                 reverse[ 3 ] = -plane[ 3 ];
1089                                                 reverse[3] += clipDepth;
1090
1091                                                 /* set up brush sides */
1092                                                 buildBrush->numsides = 5;
1093                                                 buildBrush->sides[ 0 ].shaderInfo = si;
1094                                                 for ( j = 1; j < buildBrush->numsides; j++ ) {
1095                                                         if ( debugClip ) {
1096                                                                 buildBrush->sides[ 0 ].shaderInfo = ShaderInfoForShader( "debugclip2" );
1097                                                                 buildBrush->sides[ j ].shaderInfo = ShaderInfoForShader( "debugclip" );
1098                                                         }
1099                                                         else {
1100                                                                 buildBrush->sides[ j ].shaderInfo = NULL;  // don't emit these faces as draw surfaces, should make smaller BSPs; hope this works
1101                                                         }
1102                                                 }
1103                                                 VectorCopy( points[0], points[3] ); // for cyclic usage
1104
1105                                                 buildBrush->sides[ 0 ].planenum = FindFloatPlane( plane, plane[ 3 ], 3, points );
1106                                                 buildBrush->sides[ 1 ].planenum = FindFloatPlane( p[0], p[0][ 3 ], 2, &points[ 0 ] ); // p[0] contains points[0] and points[1]
1107                                                 buildBrush->sides[ 2 ].planenum = FindFloatPlane( p[1], p[1][ 3 ], 2, &points[ 1 ] ); // p[1] contains points[1] and points[2]
1108                                                 buildBrush->sides[ 3 ].planenum = FindFloatPlane( p[2], p[2][ 3 ], 2, &points[ 2 ] ); // p[2] contains points[2] and points[0] (copied to points[3]
1109                                                 buildBrush->sides[ 4 ].planenum = FindFloatPlane( reverse, reverse[ 3 ], 0, NULL );
1110                                         }
1111
1112
1113                                         else if ( spf == 8 ){   //EXTRUDE_FACE_NORMALS
1114
1115                                                 /* make side planes */
1116                                                 for ( j = 0; j < 3; j++ )
1117                                                 {
1118                                                         VectorSubtract( points[(j+1)%3], points[ j ], nrm );
1119                                                         CrossProduct( plane, nrm, p[ j ] );
1120                                                         VectorNormalize( p[ j ], p[ j ] );
1121                                                         p[j][3] = DotProduct( points[j], p[j] );
1122                                                         //snap nearly axial side planes
1123                                                         snpd = qfalse;
1124                                                         for ( k = 0; k < 3; k++ )
1125                                                         {
1126                                                                 if ( fabs(p[j][k]) < 0.00025 && p[j][k] != 0.0 ){
1127                                                                         //Sys_Printf( "init plane %6.8f %6.8f %6.8f %6.8f\n", p[j][0], p[j][1], p[j][2], p[j][3]);
1128                                                                         p[j][k] = 0.0;
1129                                                                         snpd = qtrue;
1130                                                                 }
1131                                                         }
1132                                                         if ( snpd ){
1133                                                                 VectorNormalize( p[j], p[j] );
1134                                                                 //Sys_Printf( "nrm plane %6.8f %6.8f %6.8f %6.8f\n", p[j][0], p[j][1], p[j][2], p[j][3]);
1135                                                                 VectorAdd( points[j], points[(j+1)%3], cnt );
1136                                                                 VectorScale( cnt, 0.5f, cnt );
1137                                                                 p[j][3] = DotProduct( cnt, p[j] );
1138                                                                 //Sys_Printf( "dst plane %6.8f %6.8f %6.8f %6.8f\n", p[j][0], p[j][1], p[j][2], p[j][3]);
1139                                                         }
1140                                                 }
1141
1142                                                 /* make back plane */
1143                                                 VectorScale( plane, -1.0f, reverse );
1144                                                 reverse[ 3 ] = -plane[ 3 ];
1145                                                 reverse[3] += clipDepth;
1146 #if nonax_clip_dbg
1147                                                 for ( j = 0; j < 3; j++ )
1148                                                 {
1149                                                         for ( k = 0; k < 3; k++ )
1150                                                         {
1151                                                                 if ( fabs(p[j][k]) < 0.00005 && p[j][k] != 0.0 ){
1152                                                                         Sys_Printf( "nonax nrm %6.17f %6.17f %6.17f\n", p[j][0], p[j][1], p[j][2] );
1153                                                                         Sys_Printf( "frm src nrm %6.17f %6.17f %6.17f\n", plane[0], plane[1], plane[2]);
1154                                                                 }
1155                                                         }
1156                                                 }
1157 #endif
1158                                                 /* set up brush sides */
1159                                                 buildBrush->numsides = 5;
1160                                                 buildBrush->sides[ 0 ].shaderInfo = si;
1161                                                 for ( j = 1; j < buildBrush->numsides; j++ ) {
1162                                                         if ( debugClip ) {
1163                                                                 buildBrush->sides[ 0 ].shaderInfo = ShaderInfoForShader( "debugclip2" );
1164                                                                 buildBrush->sides[ j ].shaderInfo = ShaderInfoForShader( "debugclip" );
1165                                                         }
1166                                                         else {
1167                                                                 buildBrush->sides[ j ].shaderInfo = NULL;  // don't emit these faces as draw surfaces, should make smaller BSPs; hope this works
1168                                                         }
1169                                                 }
1170                                                 VectorCopy( points[0], points[3] ); // for cyclic usage
1171
1172                                                 buildBrush->sides[ 0 ].planenum = FindFloatPlane( plane, plane[ 3 ], 3, points );
1173                                                 buildBrush->sides[ 1 ].planenum = FindFloatPlane( p[0], p[0][ 3 ], 2, &points[ 0 ] ); // p[0] contains points[0] and points[1]
1174                                                 buildBrush->sides[ 2 ].planenum = FindFloatPlane( p[1], p[1][ 3 ], 2, &points[ 1 ] ); // p[1] contains points[1] and points[2]
1175                                                 buildBrush->sides[ 3 ].planenum = FindFloatPlane( p[2], p[2][ 3 ], 2, &points[ 2 ] ); // p[2] contains points[2] and points[0] (copied to points[3]
1176                                                 buildBrush->sides[ 4 ].planenum = FindFloatPlane( reverse, reverse[ 3 ], 0, NULL );
1177                                         }
1178
1179
1180                                         else if ( spf == 256 ){ //PYRAMIDAL_CLIP
1181
1182                                                 /* calculate center */
1183                                                 VectorAdd( points[ 0 ], points[ 1 ], cnt );
1184                                                 VectorAdd( cnt, points[ 2 ], cnt );
1185                                                 VectorScale( cnt, 0.3333333333333f, cnt );
1186
1187                                                 /* make back pyramid point */
1188                                                 VectorMA( cnt, -clipDepth, plane, cnt );
1189
1190                                                 /* make 3 more planes */
1191                                                 if( PlaneFromPoints( p[0], points[ 2 ], points[ 1 ], cnt ) &&
1192                                                         PlaneFromPoints( p[1], points[ 1 ], points[ 0 ], cnt ) &&
1193                                                         PlaneFromPoints( p[2], points[ 0 ], points[ 2 ], cnt ) ) {
1194
1195                                                         //check for dangerous planes
1196                                                         while( (( p[0][0] != 0.0 || p[0][1] != 0.0 ) && fabs(p[0][0]) < 0.00025 && fabs(p[0][1]) < 0.00025) ||
1197                                                                 (( p[0][0] != 0.0 || p[0][2] != 0.0 ) && fabs(p[0][0]) < 0.00025 && fabs(p[0][2]) < 0.00025) ||
1198                                                                 (( p[0][2] != 0.0 || p[0][1] != 0.0 ) && fabs(p[0][2]) < 0.00025 && fabs(p[0][1]) < 0.00025) ||
1199                                                                 (( p[1][0] != 0.0 || p[1][1] != 0.0 ) && fabs(p[1][0]) < 0.00025 && fabs(p[1][1]) < 0.00025) ||
1200                                                                 (( p[1][0] != 0.0 || p[1][2] != 0.0 ) && fabs(p[1][0]) < 0.00025 && fabs(p[1][2]) < 0.00025) ||
1201                                                                 (( p[1][2] != 0.0 || p[1][1] != 0.0 ) && fabs(p[1][2]) < 0.00025 && fabs(p[1][1]) < 0.00025) ||
1202                                                                 (( p[2][0] != 0.0 || p[2][1] != 0.0 ) && fabs(p[2][0]) < 0.00025 && fabs(p[2][1]) < 0.00025) ||
1203                                                                 (( p[2][0] != 0.0 || p[2][2] != 0.0 ) && fabs(p[2][0]) < 0.00025 && fabs(p[2][2]) < 0.00025) ||
1204                                                                 (( p[2][2] != 0.0 || p[2][1] != 0.0 ) && fabs(p[2][2]) < 0.00025 && fabs(p[2][1]) < 0.00025) ) {
1205                                                                 VectorMA( cnt, -0.1f, plane, cnt );
1206                                                                 //      Sys_Printf( "shifting pyramid point\n" );
1207                                                                 PlaneFromPoints( p[0], points[ 2 ], points[ 1 ], cnt );
1208                                                                 PlaneFromPoints( p[1], points[ 1 ], points[ 0 ], cnt );
1209                                                                 PlaneFromPoints( p[2], points[ 0 ], points[ 2 ], cnt );
1210                                                         }
1211 #if nonax_clip_dbg
1212                                                         for ( j = 0; j < 3; j++ )
1213                                                         {
1214                                                                 for ( k = 0; k < 3; k++ )
1215                                                                 {
1216                                                                         if ( fabs(p[j][k]) < 0.00005 && p[j][k] != 0.0 ){
1217                                                                                 Sys_Printf( "nonax nrm %6.17f %6.17f %6.17f\n (%6.8f %6.8f %6.8f)\n (%6.8f %6.8f %6.8f)\n (%6.8f %6.8f %6.8f)\n", p[j][0], p[j][1], p[j][2], points[j][0], points[j][1], points[j][2], points[(j+1)%3][0], points[(j+1)%3][1], points[(j+1)%3][2], cnt[0], cnt[1], cnt[2] );
1218                                                                         }
1219                                                                 }
1220                                                         }
1221 #endif
1222                                                         /* set up brush sides */
1223                                                         buildBrush->numsides = 4;
1224                                                         buildBrush->sides[ 0 ].shaderInfo = si;
1225                                                         for ( j = 1; j < buildBrush->numsides; j++ ) {
1226                                                                 if ( debugClip ) {
1227                                                                         buildBrush->sides[ 0 ].shaderInfo = ShaderInfoForShader( "debugclip2" );
1228                                                                         buildBrush->sides[ j ].shaderInfo = ShaderInfoForShader( "debugclip" );
1229                                                                 }
1230                                                                 else {
1231                                                                         buildBrush->sides[ j ].shaderInfo = NULL;  // don't emit these faces as draw surfaces, should make smaller BSPs; hope this works
1232                                                                 }
1233                                                         }
1234                                                         VectorCopy( points[0], points[3] ); // for cyclic usage
1235
1236                                                         buildBrush->sides[ 0 ].planenum = FindFloatPlane( plane, plane[ 3 ], 3, points );
1237                                                         buildBrush->sides[ 1 ].planenum = FindFloatPlane( p[0], p[0][ 3 ], 2, &points[ 1 ] ); // p[0] contains points[1] and points[2]
1238                                                         buildBrush->sides[ 2 ].planenum = FindFloatPlane( p[1], p[1][ 3 ], 2, &points[ 0 ] ); // p[1] contains points[0] and points[1]
1239                                                         buildBrush->sides[ 3 ].planenum = FindFloatPlane( p[2], p[2][ 3 ], 2, &points[ 2 ] ); // p[2] contains points[2] and points[0] (copied to points[3]
1240                                                 }
1241                                                 else
1242                                                 {
1243                                                         Sys_Printf( "WARNING: triangle (%6.0f %6.0f %6.0f) (%6.0f %6.0f %6.0f) (%6.0f %6.0f %6.0f) of %s was not autoclipped\n", points[0][0], points[0][1], points[0][2], points[1][0], points[1][1], points[1][2], points[2][0], points[2][1], points[2][2], name );
1244                                                         free( buildBrush );
1245                                                         continue;
1246                                                 }
1247                                         }
1248
1249
1250                                         else if ( ( si->clipModel && !( spf ) ) || ( ( spawnFlags & 8090 ) == 2 ) ){    //default CLIPMODEL
1251
1252                                                 default_CLIPMODEL:
1253                                                 // axial normal
1254                                                 VectorCopy( plane, bestNormal );
1255                                                 for ( j = 0; j < 3; j++ ){
1256                                                         if ( fabs(bestNormal[j]) > fabs(bestNormal[(j+1)%3]) ){
1257                                                                 bestNormal[(j+1)%3] = 0.0;
1258                                                         }
1259                                                         else {
1260                                                                 bestNormal[j] = 0.0;
1261                                                         }
1262                                                 }
1263                                                 VectorNormalize( bestNormal, bestNormal );
1264
1265                                                 /* make side planes */
1266                                                 for ( j = 0; j < 3; j++ )
1267                                                 {
1268                                                         VectorSubtract( points[(j+1)%3], points[ j ], nrm );
1269                                                         CrossProduct( bestNormal, nrm, p[ j ] );
1270                                                         VectorNormalize( p[ j ], p[ j ] );
1271                                                         p[j][3] = DotProduct( points[j], p[j] );
1272                                                 }
1273
1274                                                 /* make back plane */
1275                                                 VectorScale( plane, -1.0f, reverse );
1276                                                 reverse[ 3 ] = -plane[ 3 ];
1277                                                 reverse[3] += DotProduct( bestNormal, plane ) * clipDepth;
1278 #if nonax_clip_dbg
1279                                                 for ( j = 0; j < 3; j++ )
1280                                                 {
1281                                                         for ( k = 0; k < 3; k++ )
1282                                                         {
1283                                                                 if ( fabs(p[j][k]) < 0.00025 && p[j][k] != 0.0 ){
1284                                                                         Sys_Printf( "nonax nrm %6.17f %6.17f %6.17f\n", p[j][0], p[j][1], p[j][2] );
1285                                                                 }
1286                                                         }
1287                                                 }
1288 #endif
1289                                                 /* set up brush sides */
1290                                                 buildBrush->numsides = 5;
1291                                                 buildBrush->sides[ 0 ].shaderInfo = si;
1292                                                 for ( j = 1; j < buildBrush->numsides; j++ ) {
1293                                                         if ( debugClip ) {
1294                                                                 buildBrush->sides[ 0 ].shaderInfo = ShaderInfoForShader( "debugclip2" );
1295                                                                 buildBrush->sides[ j ].shaderInfo = ShaderInfoForShader( "debugclip" );
1296                                                         }
1297                                                         else {
1298                                                                 buildBrush->sides[ j ].shaderInfo = NULL;  // don't emit these faces as draw surfaces, should make smaller BSPs; hope this works
1299                                                         }
1300                                                 }
1301                                                 VectorCopy( points[0], points[3] ); // for cyclic usage
1302
1303                                                 buildBrush->sides[ 0 ].planenum = FindFloatPlane( plane, plane[ 3 ], 3, points );
1304                                                 buildBrush->sides[ 1 ].planenum = FindFloatPlane( p[0], p[0][ 3 ], 2, &points[ 0 ] ); // p[0] contains points[0] and points[1]
1305                                                 buildBrush->sides[ 2 ].planenum = FindFloatPlane( p[1], p[1][ 3 ], 2, &points[ 1 ] ); // p[1] contains points[1] and points[2]
1306                                                 buildBrush->sides[ 3 ].planenum = FindFloatPlane( p[2], p[2][ 3 ], 2, &points[ 2 ] ); // p[2] contains points[2] and points[0] (copied to points[3]
1307                                                 buildBrush->sides[ 4 ].planenum = FindFloatPlane( reverse, reverse[ 3 ], 0, NULL );
1308                                         }
1309
1310
1311                                         /* add to entity */
1312                                         if ( CreateBrushWindings( buildBrush ) ) {
1313                                                 AddBrushBevels();
1314                                                 //%     EmitBrushes( buildBrush, NULL, NULL );
1315                                                 buildBrush->next = entities[ mapEntityNum ].brushes;
1316                                                 entities[ mapEntityNum ].brushes = buildBrush;
1317                                                 entities[ mapEntityNum ].numBrushes++;
1318                                         }
1319                                         else{
1320                                                 Sys_Printf( "WARNING: triangle (%6.0f %6.0f %6.0f) (%6.0f %6.0f %6.0f) (%6.0f %6.0f %6.0f) of %s was not autoclipped\n", points[0][0], points[0][1], points[0][2], points[1][0], points[1][1], points[1][2], points[2][0], points[2][1], points[2][2], name );
1321                                                 free( buildBrush );
1322                                         }
1323                                 }
1324                         }
1325                         normalEpsilon = normalEpsilon_save;
1326                 }
1327                 else if ( spawnFlags & 8090 ){
1328                         Sys_Printf( "WARNING: nonexistent clipping mode selected\n" );
1329                 }
1330         }
1331 }
1332
1333
1334
1335 /*
1336    AddTriangleModels()
1337    adds misc_model surfaces to the bsp
1338  */
1339
1340 void AddTriangleModels( entity_t *e ){
1341         int num, frame, skin, castShadows, recvShadows, spawnFlags;
1342         entity_t        *e2;
1343         const char      *targetName;
1344         const char      *target, *model, *value;
1345         char shader[ MAX_QPATH ];
1346         shaderInfo_t    *celShader;
1347         float temp, baseLightmapScale, lightmapScale, clipDepth;
1348         float shadeAngle;
1349         int lightmapSampleSize;
1350         vec3_t origin, scale, angles;
1351         m4x4_t transform;
1352         epair_t         *ep;
1353         remap_t         *remap, *remap2;
1354         char            *split;
1355
1356
1357         /* note it */
1358         Sys_FPrintf( SYS_VRB, "--- AddTriangleModels ---\n" );
1359
1360
1361         /* get current brush entity targetname */
1362         if ( e == entities ) {
1363                 targetName = "";
1364         }
1365         else
1366         {
1367                 targetName = ValueForKey( e, "targetname" );
1368
1369                 /* misc_model entities target non-worldspawn brush model entities */
1370                 if ( targetName[ 0 ] == '\0' ) {
1371                         return;
1372                 }
1373         }
1374
1375         /* get lightmap scale */
1376         /* vortex: added _ls key (short name of lightmapscale) */
1377         baseLightmapScale = 0.0f;
1378         if ( strcmp( "", ValueForKey( e, "lightmapscale" ) ) ||
1379                  strcmp( "", ValueForKey( e, "_lightmapscale" ) ) ||
1380                  strcmp( "", ValueForKey( e, "_ls" ) ) ) {
1381                 baseLightmapScale = FloatForKey( e, "lightmapscale" );
1382                 if ( baseLightmapScale <= 0.0f ) {
1383                         baseLightmapScale = FloatForKey( e, "_lightmapscale" );
1384                 }
1385                 if ( baseLightmapScale <= 0.0f ) {
1386                         baseLightmapScale = FloatForKey( e, "_ls" );
1387                 }
1388                 if ( baseLightmapScale < 0.0f ) {
1389                         baseLightmapScale = 0.0f;
1390                 }
1391                 if ( baseLightmapScale > 0.0f ) {
1392                         Sys_Printf( "World Entity has lightmap scale of %.4f\n", baseLightmapScale );
1393                 }
1394         }
1395
1396         /* walk the entity list */
1397         for ( num = 1; num < numEntities; num++ )
1398         {
1399                 /* get e2 */
1400                 e2 = &entities[ num ];
1401
1402                 /* convert misc_models into raw geometry */
1403                 if ( Q_stricmp( "misc_model", ValueForKey( e2, "classname" ) ) ) {
1404                         continue;
1405                 }
1406
1407                 /* ydnar: added support for md3 models on non-worldspawn models */
1408                 target = ValueForKey( e2, "target" );
1409                 if ( strcmp( target, targetName ) ) {
1410                         continue;
1411                 }
1412
1413                 /* get model name */
1414                 model = ValueForKey( e2, "model" );
1415                 if ( model[ 0 ] == '\0' ) {
1416                         Sys_FPrintf( SYS_WRN, "WARNING: misc_model at %i %i %i without a model key\n",
1417                                                 (int) origin[ 0 ], (int) origin[ 1 ], (int) origin[ 2 ] );
1418                         continue;
1419                 }
1420
1421                 /* get model frame */
1422                 frame = 0;
1423                 if ( strcmp( "", ValueForKey( e2, "_frame" ) ) ) {
1424                         frame = IntForKey( e2, "_frame" );
1425                 }
1426                 else if ( strcmp( "", ValueForKey( e2, "frame" ) ) ) {
1427                         frame = IntForKey( e2, "frame" );
1428                 }
1429
1430                 /* worldspawn (and func_groups) default to cast/recv shadows in worldspawn group */
1431                 if ( e == entities ) {
1432                         castShadows = WORLDSPAWN_CAST_SHADOWS;
1433                         recvShadows = WORLDSPAWN_RECV_SHADOWS;
1434                 }
1435
1436                 /* other entities don't cast any shadows, but recv worldspawn shadows */
1437                 else
1438                 {
1439                         castShadows = ENTITY_CAST_SHADOWS;
1440                         recvShadows = ENTITY_RECV_SHADOWS;
1441                 }
1442
1443                 /* get explicit shadow flags */
1444                 GetEntityShadowFlags( e2, e, &castShadows, &recvShadows );
1445
1446                 /* get spawnflags */
1447                 spawnFlags = IntForKey( e2, "spawnflags" );
1448
1449                 /* get origin */
1450                 GetVectorForKey( e2, "origin", origin );
1451                 VectorSubtract( origin, e->origin, origin );    /* offset by parent */
1452
1453                 /* get scale */
1454                 scale[ 0 ] = scale[ 1 ] = scale[ 2 ] = 1.0f;
1455                 temp = FloatForKey( e2, "modelscale" );
1456                 if ( temp != 0.0f ) {
1457                         scale[ 0 ] = scale[ 1 ] = scale[ 2 ] = temp;
1458                 }
1459                 value = ValueForKey( e2, "modelscale_vec" );
1460                 if ( value[ 0 ] != '\0' ) {
1461                         sscanf( value, "%f %f %f", &scale[ 0 ], &scale[ 1 ], &scale[ 2 ] );
1462                 }
1463
1464                 /* get "angle" (yaw) or "angles" (pitch yaw roll) */
1465                 angles[ 0 ] = angles[ 1 ] = angles[ 2 ] = 0.0f;
1466                 angles[ 2 ] = FloatForKey( e2, "angle" );
1467                 value = ValueForKey( e2, "angles" );
1468                 if ( value[ 0 ] != '\0' ) {
1469                         sscanf( value, "%f %f %f", &angles[ 1 ], &angles[ 2 ], &angles[ 0 ] );
1470                 }
1471
1472                 /* set transform matrix (thanks spog) */
1473                 m4x4_identity( transform );
1474                 m4x4_pivoted_transform_by_vec3( transform, origin, angles, eXYZ, scale, vec3_origin );
1475
1476                 /* get shader remappings */
1477                 remap = NULL;
1478                 for ( ep = e2->epairs; ep != NULL; ep = ep->next )
1479                 {
1480                         /* look for keys prefixed with "_remap" */
1481                         if ( ep->key != NULL && ep->value != NULL &&
1482                                  ep->key[ 0 ] != '\0' && ep->value[ 0 ] != '\0' &&
1483                                  !Q_strncasecmp( ep->key, "_remap", 6 ) ) {
1484                                 /* create new remapping */
1485                                 remap2 = remap;
1486                                 remap = safe_malloc( sizeof( *remap ) );
1487                                 remap->next = remap2;
1488                                 strcpy( remap->from, ep->value );
1489
1490                                 /* split the string */
1491                                 split = strchr( remap->from, ';' );
1492                                 if ( split == NULL ) {
1493                                         Sys_FPrintf( SYS_WRN, "WARNING: Shader _remap key found in misc_model without a ; character\n" );
1494                                         free( remap );
1495                                         remap = remap2;
1496                                         continue;
1497                                 }
1498
1499                                 /* store the split */
1500                                 *split = '\0';
1501                                 strcpy( remap->to, ( split + 1 ) );
1502
1503                                 /* note it */
1504                                 //%     Sys_FPrintf( SYS_VRB, "Remapping %s to %s\n", remap->from, remap->to );
1505                         }
1506                 }
1507
1508                 /* ydnar: cel shader support */
1509                 value = ValueForKey( e2, "_celshader" );
1510                 if ( value[ 0 ] == '\0' ) {
1511                         value = ValueForKey( &entities[ 0 ], "_celshader" );
1512                 }
1513                 if ( value[ 0 ] != '\0' ) {
1514                         sprintf( shader, "textures/%s", value );
1515                         celShader = ShaderInfoForShader( shader );
1516                 }
1517                 else{
1518                         celShader = *globalCelShader ? ShaderInfoForShader( globalCelShader ) : NULL;
1519                 }
1520
1521                 /* jal : entity based _samplesize */
1522                 lightmapSampleSize = 0;
1523                 if ( strcmp( "", ValueForKey( e2, "_lightmapsamplesize" ) ) ) {
1524                         lightmapSampleSize = IntForKey( e2, "_lightmapsamplesize" );
1525                 }
1526                 else if ( strcmp( "", ValueForKey( e2, "_samplesize" ) ) ) {
1527                         lightmapSampleSize = IntForKey( e2, "_samplesize" );
1528                 }
1529                 else if ( strcmp( "", ValueForKey( e2, "_ss" ) ) ) {
1530                         lightmapSampleSize = IntForKey( e2, "_ss" );
1531                 }
1532
1533                 if ( lightmapSampleSize < 0 ) {
1534                         lightmapSampleSize = 0;
1535                 }
1536
1537                 if ( lightmapSampleSize > 0.0f ) {
1538                         Sys_Printf( "misc_model has lightmap sample size of %.d\n", lightmapSampleSize );
1539                 }
1540
1541                 /* get lightmap scale */
1542                 /* vortex: added _ls key (short name of lightmapscale) */
1543                 lightmapScale = 0.0f;
1544                 if ( strcmp( "", ValueForKey( e2, "lightmapscale" ) ) ||
1545                          strcmp( "", ValueForKey( e2, "_lightmapscale" ) ) ||
1546                          strcmp( "", ValueForKey( e2, "_ls" ) ) ) {
1547                         lightmapScale = FloatForKey( e2, "lightmapscale" );
1548                         if ( lightmapScale <= 0.0f ) {
1549                                 lightmapScale = FloatForKey( e2, "_lightmapscale" );
1550                         }
1551                         if ( lightmapScale <= 0.0f ) {
1552                                 lightmapScale = FloatForKey( e2, "_ls" );
1553                         }
1554                         if ( lightmapScale < 0.0f ) {
1555                                 lightmapScale = 0.0f;
1556                         }
1557                         if ( lightmapScale > 0.0f ) {
1558                                 Sys_Printf( "misc_model has lightmap scale of %.4f\n", lightmapScale );
1559                         }
1560                 }
1561
1562                 /* jal : entity based _shadeangle */
1563                 shadeAngle = 0.0f;
1564                 if ( strcmp( "", ValueForKey( e2, "_shadeangle" ) ) ) {
1565                         shadeAngle = FloatForKey( e2, "_shadeangle" );
1566                 }
1567                 /* vortex' aliases */
1568                 else if ( strcmp( "", ValueForKey( e2, "_smoothnormals" ) ) ) {
1569                         shadeAngle = FloatForKey( e2, "_smoothnormals" );
1570                 }
1571                 else if ( strcmp( "", ValueForKey( e2, "_sn" ) ) ) {
1572                         shadeAngle = FloatForKey( e2, "_sn" );
1573                 }
1574                 else if ( strcmp( "", ValueForKey( e2, "_sa" ) ) ) {
1575                         shadeAngle = FloatForKey( e2, "_sa" );
1576                 }
1577                 else if ( strcmp( "", ValueForKey( e2, "_smooth" ) ) ) {
1578                         shadeAngle = FloatForKey( e2, "_smooth" );
1579                 }
1580
1581                 if ( shadeAngle < 0.0f ) {
1582                         shadeAngle = 0.0f;
1583                 }
1584
1585                 if ( shadeAngle > 0.0f ) {
1586                         Sys_Printf( "misc_model has shading angle of %.4f\n", shadeAngle );
1587                 }
1588
1589                 skin = 0;
1590                 if ( strcmp( "", ValueForKey( e2, "_skin" ) ) ) {
1591                         skin = IntForKey( e2, "_skin" );
1592                 }
1593                 else if ( strcmp( "", ValueForKey( e2, "skin" ) ) ) {
1594                         skin = IntForKey( e2, "skin" );
1595                 }
1596
1597                 clipDepth = clipDepthGlobal;
1598                 if ( strcmp( "", ValueForKey( e2, "_clipdepth" ) ) ) {
1599                         clipDepth = FloatForKey( e2, "_clipdepth" );
1600                         Sys_Printf( "misc_model has autoclip depth of %.3f\n", clipDepth );
1601                 }
1602
1603
1604                 /* insert the model */
1605                 InsertModel( model, skin, frame, transform, remap, celShader, mapEntityNum, castShadows, recvShadows, spawnFlags, lightmapScale, lightmapSampleSize, shadeAngle, clipDepth );
1606
1607                 /* free shader remappings */
1608                 while ( remap != NULL )
1609                 {
1610                         remap2 = remap->next;
1611                         free( remap );
1612                         remap = remap2;
1613                 }
1614         }
1615
1616 }