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 {
  48         if( str == NULL )
  49                 return;
  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_Printf( "WARNING: %s\n", str );
  62                         break;
  63
  64                 case PICO_ERROR:
  65                         Sys_Printf( "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( char *name, byte **buffer, int *bufSize )
  82 {
  83         *bufSize = vfsLoadFile( (const char*) name, (void**) buffer, 0 );
  84 }
  85
  86
  87
  88 /*
  89 FindModel() - ydnar
  90 finds an existing picoModel and returns a pointer to the picoModel_t struct or NULL if not found
  91 */
  92
  93 picoModel_t *FindModel( char *name, int frame )
  94 {
  95         int                     i;
  96
  97
  98         /* init */
  99         if( numPicoModels <= 0 )
 100                 memset( picoModels, 0, sizeof( picoModels ) );
 101
 102         /* dummy check */
 103         if( name == NULL || name[ 0 ] == '\0' )
 104                 return NULL;
 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         /* no matching picoModel found */
 116         return NULL;
 117 }
 118
 119
 120
 121 /*
 122 LoadModel() - ydnar
 123 loads a picoModel and returns a pointer to the picoModel_t struct or NULL if not found
 124 */
 125
 126 picoModel_t *LoadModel( char *name, int frame )
 127 {
 128         int                             i;
 129         picoModel_t             *model, **pm;
 130
 131
 132         /* init */
 133         if( numPicoModels <= 0 )
 134                 memset( picoModels, 0, sizeof( picoModels ) );
 135
 136         /* dummy check */
 137         if( name == NULL || name[ 0 ] == '\0' )
 138                 return NULL;
 139
 140         /* try to find existing picoModel */
 141         model = FindModel( name, frame );
 142         if( model != NULL )
 143                 return model;
 144
 145         /* none found, so find first non-null picoModel */
 146         pm = NULL;
 147         for( i = 0; i < MAX_MODELS; i++ )
 148         {
 149                 if( picoModels[ i ] == NULL )
 150                 {
 151                         pm = &picoModels[ i ];
 152                         break;
 153                 }
 154         }
 155
 156         /* too many picoModels? */
 157         if( pm == NULL )
 158                 Error( "MAX_MODELS (%d) exceeded, there are too many model files referenced by the map.", MAX_MODELS );
 159
 160         /* attempt to parse model */
 161         *pm = PicoLoadModel( (char*) name, frame );
 162
 163         /* if loading failed, make a bogus model to silence the rest of the warnings */
 164         if( *pm == NULL )
 165         {
 166                 /* allocate a new model */
 167                 *pm = PicoNewModel();
 168                 if( *pm == NULL )
 169                         return NULL;
 170
 171                 /* set data */
 172                 PicoSetModelName( *pm, name );
 173                 PicoSetModelFrameNum( *pm, frame );
 174         }
 175
 176         /* debug code */
 177         #if 0
 178         {
 179                 int                             numSurfaces, numVertexes;
 180                 picoSurface_t   *ps;
 181
 182
 183                 Sys_Printf( "Model %s\n", name );
 184                 numSurfaces = PicoGetModelNumSurfaces( *pm );
 185                 for( i = 0; i < numSurfaces; i++ )
 186                 {
 187                         ps = PicoGetModelSurface( *pm, i );
 188                         numVertexes = PicoGetSurfaceNumVertexes( ps );
 189                         Sys_Printf( "Surface %d has %d vertexes\n", i, numVertexes );
 190                 }
 191         }
 192         #endif
 193
 194         /* set count */
 195         if( *pm != NULL )
 196                 numPicoModels++;
 197
 198         /* return the picoModel */
 199         return *pm;
 200 }
 201
 202
 203
 204 /*
 205 InsertModel() - ydnar
 206 adds a picomodel into the bsp
 207 */
 208
 209 void InsertModel( char *name, int frame, m4x4_t transform, remap_t *remap, shaderInfo_t *celShader, int eNum, int castShadows, int recvShadows, int spawnFlags, float lightmapScale )
 210 {
 211         int                                     i, j, k, s, numSurfaces;
 212         m4x4_t                          identity, nTransform;
 213         picoModel_t                     *model;
 214         picoShader_t            *shader;
 215         picoSurface_t           *surface;
 216         shaderInfo_t            *si;
 217         mapDrawSurface_t        *ds;
 218         bspDrawVert_t           *dv;
 219         char                            *picoShaderName;
 220         char                            shaderName[ MAX_QPATH ];
 221         picoVec_t                       *xyz, *normal, *st;
 222         byte                            *color;
 223         picoIndex_t                     *indexes;
 224         remap_t                         *rm, *glob;
 225
 226
 227         /* get model */
 228         model = LoadModel( name, frame );
 229         if( model == NULL )
 230                 return;
 231
 232         /* handle null matrix */
 233         if( transform == NULL )
 234         {
 235                 m4x4_identity( identity );
 236                 transform = identity;
 237         }
 238
 239         /* hack: Stable-1_2 and trunk have differing row/column major matrix order
 240            this transpose is necessary with Stable-1_2
 241            uncomment the following line with old m4x4_t (non 1.3/spog_branch) code */
 242         //%     m4x4_transpose( transform );
 243
 244         /* create transform matrix for normals */
 245         memcpy( nTransform, transform, sizeof( m4x4_t ) );
 246         if( m4x4_invert( nTransform ) )
 247                 Sys_FPrintf( SYS_VRB, "WARNING: Can't invert model transform matrix, using transpose instead\n" );
 248         m4x4_transpose( nTransform );
 249
 250         /* fix bogus lightmap scale */
 251         if( lightmapScale <= 0.0f )
 252                 lightmapScale = 1.0f;
 253
 254         /* each surface on the model will become a new map drawsurface */
 255         numSurfaces = PicoGetModelNumSurfaces( model );
 256         //%     Sys_FPrintf( SYS_VRB, "Model %s has %d surfaces\n", name, numSurfaces );
 257         for( s = 0; s < numSurfaces; s++ )
 258         {
 259                 /* get surface */
 260                 surface = PicoGetModelSurface( model, s );
 261                 if( surface == NULL )
 262                         continue;
 263
 264                 /* only handle triangle surfaces initially (fixme: support patches) */
 265                 if( PicoGetSurfaceType( surface ) != PICO_TRIANGLES )
 266                         continue;
 267
 268                 /* fix the surface's normals */
 269                 PicoFixSurfaceNormals( surface );
 270
 271                 /* allocate a surface (ydnar: gs mods) */
 272                 ds = AllocDrawSurface( SURFACE_TRIANGLES );
 273                 ds->entityNum = eNum;
 274                 ds->castShadows = castShadows;
 275                 ds->recvShadows = recvShadows;
 276
 277                 /* get shader name */
 278         shader = PicoGetSurfaceShader( surface );
 279                 if( shader == NULL )
 280                         picoShaderName = "";
 281                 else
 282                         picoShaderName = PicoGetShaderName( shader );
 283
 284                 /* handle shader remapping */
 285                 glob = NULL;
 286                 for( rm = remap; rm != NULL; rm = rm->next )
 287                 {
 288                         if( rm->from[ 0 ] == '*' && rm->from[ 1 ] == '\0' )
 289                                 glob = rm;
 290                         else if( !Q_stricmp( picoShaderName, rm->from ) )
 291                         {
 292                                 Sys_FPrintf( SYS_VRB, "Remapping %s to %s\n", picoShaderName, rm->to );
 293                                 picoShaderName = rm->to;
 294                                 glob = NULL;
 295                                 break;
 296                         }
 297                 }
 298
 299                 if( glob != NULL )
 300                 {
 301                         Sys_FPrintf( SYS_VRB, "Globbing %s to %s\n", picoShaderName, glob->to );
 302                         picoShaderName = glob->to;
 303                 }
 304
 305                 /* shader renaming for sof2 */
 306                 if( renameModelShaders )
 307                 {
 308                         strcpy( shaderName, picoShaderName );
 309                         StripExtension( shaderName );
 310                         if( spawnFlags & 1 )
 311                                 strcat( shaderName, "_RMG_BSP" );
 312                         else
 313                                 strcat( shaderName, "_BSP" );
 314                         si = ShaderInfoForShader( shaderName );
 315                 }
 316                 else
 317                         si = ShaderInfoForShader( picoShaderName );
 318
 319                 /* set shader */
 320                 ds->shaderInfo = si;
 321
 322                 /* set lightmap scale */
 323                 ds->lightmapScale = lightmapScale;
 324
 325                 /* force to meta? */
 326                 if( (si != NULL && si->forceMeta) || (spawnFlags & 4) ) /* 3rd bit */
 327                         ds->type = SURFACE_FORCED_META;
 328
 329                 /* set particulars */
 330                 ds->numVerts = PicoGetSurfaceNumVertexes( surface );
 331                 ds->verts = safe_malloc( ds->numVerts * sizeof( ds->verts[ 0 ] ) );
 332                 memset( ds->verts, 0, ds->numVerts * sizeof( ds->verts[ 0 ] ) );
 333
 334                 ds->numIndexes = PicoGetSurfaceNumIndexes( surface );
 335                 ds->indexes = safe_malloc( ds->numIndexes * sizeof( ds->indexes[ 0 ] ) );
 336                 memset( ds->indexes, 0, ds->numIndexes * sizeof( ds->indexes[ 0 ] ) );
 337
 338                 /* copy vertexes */
 339                 for( i = 0; i < ds->numVerts; i++ )
 340                 {
 341                         /* get vertex */
 342                         dv = &ds->verts[ i ];
 343
 344                         /* xyz and normal */
 345                         xyz = PicoGetSurfaceXYZ( surface, i );
 346                         VectorCopy( xyz, dv->xyz );
 347                         m4x4_transform_point( transform, dv->xyz );
 348
 349                         normal = PicoGetSurfaceNormal( surface, i );
 350                         VectorCopy( normal, dv->normal );
 351                         m4x4_transform_normal( nTransform, dv->normal );
 352                         VectorNormalize( dv->normal, dv->normal );
 353
 354                         /* ydnar: tek-fu celshading support for flat shaded shit */
 355                         if( flat )
 356                         {
 357                                 dv->st[ 0 ] = si->stFlat[ 0 ];
 358                                 dv->st[ 1 ] = si->stFlat[ 1 ];
 359                         }
 360
 361                         /* ydnar: gs mods: added support for explicit shader texcoord generation */
 362                         else if( si->tcGen )
 363                         {
 364                                 /* project the texture */
 365                                 dv->st[ 0 ] = DotProduct( si->vecs[ 0 ], dv->xyz );
 366                                 dv->st[ 1 ] = DotProduct( si->vecs[ 1 ], dv->xyz );
 367                         }
 368
 369                         /* normal texture coordinates */
 370                         else
 371                         {
 372                                 st = PicoGetSurfaceST( surface, 0, i );
 373                                 dv->st[ 0 ] = st[ 0 ];
 374                                 dv->st[ 1 ] = st[ 1 ];
 375                         }
 376
 377                         /* set lightmap/color bits */
 378                         color = PicoGetSurfaceColor( surface, 0, i );
 379                         for( j = 0; j < MAX_LIGHTMAPS; j++ )
 380                         {
 381                                 dv->lightmap[ j ][ 0 ] = 0.0f;
 382                                 dv->lightmap[ j ][ 1 ] = 0.0f;
 383                                 dv->color[ j ][ 0 ] = color[ 0 ];
 384                                 dv->color[ j ][ 1 ] = color[ 1 ];
 385                                 dv->color[ j ][ 2 ] = color[ 2 ];
 386                                 dv->color[ j ][ 3 ] = color[ 3 ];
 387                         }
 388                 }
 389
 390                 /* copy indexes */
 391                 indexes = PicoGetSurfaceIndexes( surface, 0 );
 392                 for( i = 0; i < ds->numIndexes; i++ )
 393                         ds->indexes[ i ] = indexes[ i ];
 394
 395                 /* set cel shader */
 396                 ds->celShader = celShader;
 397
 398                 /* ydnar: giant hack land: generate clipping brushes for model triangles */
 399                 if( si->clipModel || (spawnFlags & 2) ) /* 2nd bit */
 400                 {
 401                         vec3_t          points[ 3 ], backs[ 3 ];
 402                         vec4_t          plane, reverse, pa, pb, pc;
 403                         vec3_t          nadir;
 404
 405
 406                         /* temp hack */
 407                         if( !si->clipModel &&
 408                                 ((si->compileFlags & C_TRANSLUCENT) || !(si->compileFlags & C_SOLID)) )
 409                                 continue;
 410
 411                         /* overflow check */
 412                         if( (nummapplanes + 64) >= (MAX_MAP_PLANES >> 1) )
 413                                 continue;
 414
 415                         /* walk triangle list */
 416                         for( i = 0; i < ds->numIndexes; i += 3 )
 417                         {
 418                                 /* overflow hack */
 419                                 if( (nummapplanes + 64) >= (MAX_MAP_PLANES >> 1) )
 420                                 {
 421                                         Sys_Printf( "WARNING: MAX_MAP_PLANES (%d) hit generating clip brushes for model %s.\n",
 422                                                 MAX_MAP_PLANES, name );
 423                                         break;
 424                                 }
 425
 426                                 /* make points and back points */
 427                                 for( j = 0; j < 3; j++ )
 428                                 {
 429                                         /* get vertex */
 430                                         dv = &ds->verts[ ds->indexes[ i + j ] ];
 431
 432                                         /* copy xyz */
 433                                         VectorCopy( dv->xyz, points[ j ] );
 434 #if ! Q3MAP2_EXPERIMENTAL_MODEL_CLIPPING_FIX
 435                                         // The code below is totally unneeded regardless of Q3MAP2_EXPERIMENTAL_MODEL_CLIPPING_FIX.
 436                                         // backs is reinitialized further below.  However, the extra code does not hurt anything.
 437                                         VectorCopy( dv->xyz, backs[ j ] );
 438
 439                                         /* find nearest axial to normal and push back points opposite */
 440                                         /* note: this doesn't work as well as simply using the plane of the triangle, below */
 441                                         for( k = 0; k < 3; k++ )
 442                                         {
 443                                                 if( fabs( dv->normal[ k ] ) > fabs( dv->normal[ (k + 1) % 3 ] ) &&
 444                                                         fabs( dv->normal[ k ] ) > fabs( dv->normal[ (k + 2) % 3 ] ) )
 445                                                 {
 446                                                         backs[ j ][ k ] += dv->normal[ k ] < 0.0f ? 64.0f : -64.0f;
 447                                                         break;
 448                                                 }
 449                                         }
 450 #endif
 451                                 }
 452
 453                                 /* make plane for triangle */
 454                                 if( PlaneFromPoints( plane, points[ 0 ], points[ 1 ], points[ 2 ] ) )
 455                                 {
 456                                         /* regenerate back points */
 457                                         for( j = 0; j < 3; j++ )
 458                                         {
 459                                                 /* get vertex */
 460                                                 dv = &ds->verts[ ds->indexes[ i + j ] ];
 461
 462                                                 /* copy xyz */
 463                                                 VectorCopy( dv->xyz, backs[ j ] );
 464
 465                                                 /* find nearest axial to plane normal and push back points opposite */
 466                                                 for( k = 0; k < 3; k++ )
 467                                                 {
 468 #if Q3MAP2_EXPERIMENTAL_MODEL_CLIPPING_FIX
 469                                                         if( fabs( plane[ k ] ) >= fabs( plane[ (k + 1) % 3 ] ) &&
 470                                                                 fabs( plane[ k ] ) >= fabs( plane[ (k + 2) % 3 ] ) )
 471 #else
 472                                                         // This code is broken for 45 degree angles where there
 473                                                         // is no clear winner.
 474                                                         if( fabs( plane[ k ] ) > fabs( plane[ (k + 1) % 3 ] ) &&
 475                                                                 fabs( plane[ k ] ) > fabs( plane[ (k + 2) % 3 ] ) )
 476 #endif
 477                                                         {
 478                                                                 backs[ j ][ k ] += plane[ k ] < 0.0f ? 64.0f : -64.0f;
 479                                                                 break;
 480                                                         }
 481                                                 }
 482                                         }
 483
 484                                         /* make back plane */
 485                                         VectorScale( plane, -1.0f, reverse );
 486                                         reverse[ 3 ] = -(plane[ 3 ] - 1);
 487
 488                                         /* make back pyramid point */
 489                                         VectorCopy( points[ 0 ], nadir );
 490                                         VectorAdd( nadir, points[ 1 ], nadir );
 491                                         VectorAdd( nadir, points[ 2 ], nadir );
 492                                         VectorScale( nadir, 0.3333333333333f, nadir );
 493                                         VectorMA( nadir, -2.0f, plane, nadir );
 494
 495                                         /* make 3 more planes */
 496                                         //%     if( PlaneFromPoints( pa, points[ 2 ], points[ 1 ], nadir ) &&
 497                                         //%             PlaneFromPoints( pb, points[ 1 ], points[ 0 ], nadir ) &&
 498                                         //%             PlaneFromPoints( pc, points[ 0 ], points[ 2 ], nadir ) )
 499                                         if( PlaneFromPoints( pa, points[ 2 ], points[ 1 ], backs[ 1 ] ) &&
 500                                                 PlaneFromPoints( pb, points[ 1 ], points[ 0 ], backs[ 0 ] ) &&
 501                                                 PlaneFromPoints( pc, points[ 0 ], points[ 2 ], backs[ 2 ] ) )
 502                                         {
 503                                                 /* build a brush */
 504                                                 buildBrush = AllocBrush( 48 );
 505
 506                                                 buildBrush->entityNum = mapEntityNum;
 507                                                 buildBrush->original = buildBrush;
 508                                                 buildBrush->contentShader = si;
 509                                                 buildBrush->compileFlags = si->compileFlags;
 510                                                 buildBrush->contentFlags = si->contentFlags;
 511                                                 buildBrush->detail = qtrue;
 512
 513                                                 /* set up brush sides */
 514                                                 buildBrush->numsides = 5;
 515                                                 for( j = 0; j < buildBrush->numsides; j++ )
 516                                                         buildBrush->sides[ j ].shaderInfo = si;
 517                                                 buildBrush->sides[ 0 ].planenum = FindFloatPlane( plane, plane[ 3 ], 3, points );
 518                                                 buildBrush->sides[ 1 ].planenum = FindFloatPlane( pa, pa[ 3 ], 1, &points[ 2 ] );
 519                                                 buildBrush->sides[ 2 ].planenum = FindFloatPlane( pb, pb[ 3 ], 1, &points[ 1 ] );
 520                                                 buildBrush->sides[ 3 ].planenum = FindFloatPlane( pc, pc[ 3 ], 1, &points[ 0 ] );
 521                                                 buildBrush->sides[ 4 ].planenum = FindFloatPlane( reverse, reverse[ 3 ], 3, points );
 522
 523                                                 /* add to entity */
 524                                                 if( CreateBrushWindings( buildBrush ) )
 525                                                 {
 526                                                         AddBrushBevels();
 527                                                         //%     EmitBrushes( buildBrush, NULL, NULL );
 528                                                         buildBrush->next = entities[ mapEntityNum ].brushes;
 529                                                         entities[ mapEntityNum ].brushes = buildBrush;
 530                                                         entities[ mapEntityNum ].numBrushes++;
 531                                                 }
 532                                                 else
 533                                                         free( buildBrush );
 534                                         }
 535                                 }
 536                         }
 537                 }
 538         }
 539 }
 540
 541
 542
 543 /*
 544 AddTriangleModels()
 545 adds misc_model surfaces to the bsp
 546 */
 547
 548 void AddTriangleModels( entity_t *e )
 549 {
 550         int                             num, frame, castShadows, recvShadows, spawnFlags;
 551         entity_t                *e2;
 552         const char              *targetName;
 553         const char              *target, *model, *value;
 554         char                    shader[ MAX_QPATH ];
 555         shaderInfo_t    *celShader;
 556         float                   temp, baseLightmapScale, lightmapScale;
 557         vec3_t                  origin, scale, angles;
 558         m4x4_t                  transform;
 559         epair_t                 *ep;
 560         remap_t                 *remap, *remap2;
 561         char                    *split;
 562
 563
 564         /* note it */
 565         Sys_FPrintf( SYS_VRB, "--- AddTriangleModels ---\n" );
 566
 567         /* get current brush entity targetname */
 568         if( e == entities )
 569                 targetName = "";
 570         else
 571         {
 572                 targetName = ValueForKey( e, "targetname" );
 573
 574                 /* misc_model entities target non-worldspawn brush model entities */
 575                 if( targetName[ 0 ] == '\0' )
 576                         return;
 577         }
 578
 579         /* get lightmap scale */
 580         baseLightmapScale = FloatForKey( e, "_lightmapscale" );
 581         if( baseLightmapScale <= 0.0f )
 582                 baseLightmapScale = 0.0f;
 583
 584         /* walk the entity list */
 585         for( num = 1; num < numEntities; num++ )
 586         {
 587                 /* get e2 */
 588                 e2 = &entities[ num ];
 589
 590                 /* convert misc_models into raw geometry */
 591                 if( Q_stricmp( "misc_model", ValueForKey( e2, "classname" ) ) )
 592                         continue;
 593
 594                 /* ydnar: added support for md3 models on non-worldspawn models */
 595                 target = ValueForKey( e2, "target" );
 596                 if( strcmp( target, targetName ) )
 597                         continue;
 598
 599                 /* get model name */
 600                 model = ValueForKey( e2, "model" );
 601                 if( model[ 0 ] == '\0' )
 602                 {
 603                         Sys_Printf( "WARNING: misc_model at %i %i %i without a model key\n",
 604                                 (int) origin[ 0 ], (int) origin[ 1 ], (int) origin[ 2 ] );
 605                         continue;
 606                 }
 607
 608                 /* get model frame */
 609                 frame = IntForKey( e2, "_frame" );
 610
 611                 /* worldspawn (and func_groups) default to cast/recv shadows in worldspawn group */
 612                 if( e == entities )
 613                 {
 614                         castShadows = WORLDSPAWN_CAST_SHADOWS;
 615                         recvShadows = WORLDSPAWN_RECV_SHADOWS;
 616                 }
 617
 618                 /* other entities don't cast any shadows, but recv worldspawn shadows */
 619                 else
 620                 {
 621                         castShadows = ENTITY_CAST_SHADOWS;
 622                         recvShadows = ENTITY_RECV_SHADOWS;
 623                 }
 624
 625                 /* get explicit shadow flags */
 626                 GetEntityShadowFlags( e2, e, &castShadows, &recvShadows );
 627
 628                 /* get spawnflags */
 629                 spawnFlags = IntForKey( e2, "spawnflags" );
 630
 631                 /* get origin */
 632                 GetVectorForKey( e2, "origin", origin );
 633                 VectorSubtract( origin, e->origin, origin );    /* offset by parent */
 634
 635                 /* get scale */
 636                 scale[ 0 ] = scale[ 1 ] = scale[ 2 ] = 1.0f;
 637                 temp = FloatForKey( e2, "modelscale" );
 638                 if( temp != 0.0f )
 639                         scale[ 0 ] = scale[ 1 ] = scale[ 2 ] = temp;
 640                 value = ValueForKey( e2, "modelscale_vec" );
 641                 if( value[ 0 ] != '\0' )
 642                         sscanf( value, "%f %f %f", &scale[ 0 ], &scale[ 1 ], &scale[ 2 ] );
 643
 644                 /* get "angle" (yaw) or "angles" (pitch yaw roll) */
 645                 angles[ 0 ] = angles[ 1 ] = angles[ 2 ] = 0.0f;
 646                 angles[ 2 ] = FloatForKey( e2, "angle" );
 647                 value = ValueForKey( e2, "angles" );
 648                 if( value[ 0 ] != '\0' )
 649                         sscanf( value, "%f %f %f", &angles[ 1 ], &angles[ 2 ], &angles[ 0 ] );
 650
 651                 /* set transform matrix (thanks spog) */
 652                 m4x4_identity( transform );
 653                 m4x4_pivoted_transform_by_vec3( transform, origin, angles, eXYZ, scale, vec3_origin );
 654
 655                 /* get shader remappings */
 656                 remap = NULL;
 657                 for( ep = e2->epairs; ep != NULL; ep = ep->next )
 658                 {
 659                         /* look for keys prefixed with "_remap" */
 660                         if( ep->key != NULL && ep->value != NULL &&
 661                                 ep->key[ 0 ] != '\0' && ep->value[ 0 ] != '\0' &&
 662                                 !Q_strncasecmp( ep->key, "_remap", 6 ) )
 663                         {
 664                                 /* create new remapping */
 665                                 remap2 = remap;
 666                                 remap = safe_malloc( sizeof( *remap ) );
 667                                 remap->next = remap2;
 668                                 strcpy( remap->from, ep->value );
 669
 670                                 /* split the string */
 671                                 split = strchr( remap->from, ';' );
 672                                 if( split == NULL )
 673                                 {
 674                                         Sys_Printf( "WARNING: Shader _remap key found in misc_model without a ; character\n" );
 675                                         free( remap );
 676                                         remap = remap2;
 677                                         continue;
 678                                 }
 679
 680                                 /* store the split */
 681                                 *split = '\0';
 682                                 strcpy( remap->to, (split + 1) );
 683
 684                                 /* note it */
 685                                 //%     Sys_FPrintf( SYS_VRB, "Remapping %s to %s\n", remap->from, remap->to );
 686                         }
 687                 }
 688
 689                 /* ydnar: cel shader support */
 690                 value = ValueForKey( e2, "_celshader" );
 691                 if( value[ 0 ] == '\0' )
 692                         value = ValueForKey( &entities[ 0 ], "_celshader" );
 693                 if( value[ 0 ] != '\0' )
 694                 {
 695                         sprintf( shader, "textures/%s", value );
 696                         celShader = ShaderInfoForShader( shader );
 697                 }
 698                 else
 699                         celShader = NULL;
 700
 701                 /* get lightmap scale */
 702                 lightmapScale = FloatForKey( e2, "_lightmapscale" );
 703                 if( lightmapScale <= 0.0f )
 704                         lightmapScale = baseLightmapScale;
 705
 706                 /* insert the model */
 707                 InsertModel( (char*) model, frame, transform, remap, celShader, mapEntityNum, castShadows, recvShadows, spawnFlags, lightmapScale );
 708
 709                 /* free shader remappings */
 710                 while( remap != NULL )
 711                 {
 712                         remap2 = remap->next;
 713                         free( remap );
 714                         remap = remap2;
 715                 }
 716         }
 717 }