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, int lightmapSampleSize, float shadeAngle )
 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         double                          normalEpsilon_save;
 226         double                          distanceEpsilon_save;
 227
 228
 229         /* get model */
 230         model = LoadModel( name, frame );
 231         if( model == NULL )
 232                 return;
 233
 234         /* handle null matrix */
 235         if( transform == NULL )
 236         {
 237                 m4x4_identity( identity );
 238                 transform = identity;
 239         }
 240
 241         /* hack: Stable-1_2 and trunk have differing row/column major matrix order
 242            this transpose is necessary with Stable-1_2
 243            uncomment the following line with old m4x4_t (non 1.3/spog_branch) code */
 244         //%     m4x4_transpose( transform );
 245
 246         /* create transform matrix for normals */
 247         memcpy( nTransform, transform, sizeof( m4x4_t ) );
 248         if( m4x4_invert( nTransform ) )
 249                 Sys_FPrintf( SYS_VRB, "WARNING: Can't invert model transform matrix, using transpose instead\n" );
 250         m4x4_transpose( nTransform );
 251
 252         /* fix bogus lightmap scale */
 253         if( lightmapScale <= 0.0f )
 254                 lightmapScale = 1.0f;
 255
 256         /* fix bogus shade angle */
 257         if( shadeAngle <= 0.0f )
 258                 shadeAngle = 0.0f;
 259
 260         /* each surface on the model will become a new map drawsurface */
 261         numSurfaces = PicoGetModelNumSurfaces( model );
 262         //%     Sys_FPrintf( SYS_VRB, "Model %s has %d surfaces\n", name, numSurfaces );
 263         for( s = 0; s < numSurfaces; s++ )
 264         {
 265                 /* get surface */
 266                 surface = PicoGetModelSurface( model, s );
 267                 if( surface == NULL )
 268                         continue;
 269
 270                 /* only handle triangle surfaces initially (fixme: support patches) */
 271                 if( PicoGetSurfaceType( surface ) != PICO_TRIANGLES )
 272                         continue;
 273
 274                 /* allocate a surface (ydnar: gs mods) */
 275                 ds = AllocDrawSurface( SURFACE_TRIANGLES );
 276                 ds->entityNum = eNum;
 277                 ds->castShadows = castShadows;
 278                 ds->recvShadows = recvShadows;
 279
 280                 /* get shader name */
 281         shader = PicoGetSurfaceShader( surface );
 282                 if( shader == NULL )
 283                         picoShaderName = "";
 284                 else
 285                         picoShaderName = PicoGetShaderName( shader );
 286
 287                 /* handle shader remapping */
 288                 glob = NULL;
 289                 for( rm = remap; rm != NULL; rm = rm->next )
 290                 {
 291                         if( rm->from[ 0 ] == '*' && rm->from[ 1 ] == '\0' )
 292                                 glob = rm;
 293                         else if( !Q_stricmp( picoShaderName, rm->from ) )
 294                         {
 295                                 Sys_FPrintf( SYS_VRB, "Remapping %s to %s\n", picoShaderName, rm->to );
 296                                 picoShaderName = rm->to;
 297                                 glob = NULL;
 298                                 break;
 299                         }
 300                 }
 301
 302                 if( glob != NULL )
 303                 {
 304                         Sys_FPrintf( SYS_VRB, "Globbing %s to %s\n", picoShaderName, glob->to );
 305                         picoShaderName = glob->to;
 306                 }
 307
 308                 /* shader renaming for sof2 */
 309                 if( renameModelShaders )
 310                 {
 311                         strcpy( shaderName, picoShaderName );
 312                         StripExtension( shaderName );
 313                         if( spawnFlags & 1 )
 314                                 strcat( shaderName, "_RMG_BSP" );
 315                         else
 316                                 strcat( shaderName, "_BSP" );
 317                         si = ShaderInfoForShader( shaderName );
 318                 }
 319                 else
 320                         si = ShaderInfoForShader( picoShaderName );
 321
 322                 /* set shader */
 323                 ds->shaderInfo = si;
 324
 325                 /* force to meta? */
 326                 if( (si != NULL && si->forceMeta) || (spawnFlags & 4) ) /* 3rd bit */
 327                         ds->type = SURFACE_FORCED_META;
 328
 329                 /* fix the surface's normals (jal: conditioned by shader info) */
 330                 if( !(spawnFlags & 64) && ( shadeAngle == 0.0f || ds->type != SURFACE_FORCED_META ) )
 331                         PicoFixSurfaceNormals( surface );
 332
 333                 /* set sample size */
 334                 if( lightmapSampleSize > 0.0f )
 335                         ds->sampleSize = lightmapSampleSize;
 336
 337                 /* set lightmap scale */
 338                 if( lightmapScale > 0.0f )
 339                         ds->lightmapScale = lightmapScale;
 340
 341                 /* set shading angle */
 342                 if( shadeAngle > 0.0f )
 343                         ds->shadeAngleDegrees = shadeAngle;
 344
 345                 /* set particulars */
 346                 ds->numVerts = PicoGetSurfaceNumVertexes( surface );
 347                 ds->verts = safe_malloc( ds->numVerts * sizeof( ds->verts[ 0 ] ) );
 348                 memset( ds->verts, 0, ds->numVerts * sizeof( ds->verts[ 0 ] ) );
 349
 350                 ds->numIndexes = PicoGetSurfaceNumIndexes( surface );
 351                 ds->indexes = safe_malloc( ds->numIndexes * sizeof( ds->indexes[ 0 ] ) );
 352                 memset( ds->indexes, 0, ds->numIndexes * sizeof( ds->indexes[ 0 ] ) );
 353
 354                 /* copy vertexes */
 355                 for( i = 0; i < ds->numVerts; i++ )
 356                 {
 357                         /* get vertex */
 358                         dv = &ds->verts[ i ];
 359
 360                         /* xyz and normal */
 361                         xyz = PicoGetSurfaceXYZ( surface, i );
 362                         VectorCopy( xyz, dv->xyz );
 363                         m4x4_transform_point( transform, dv->xyz );
 364
 365                         normal = PicoGetSurfaceNormal( surface, i );
 366                         VectorCopy( normal, dv->normal );
 367                         m4x4_transform_normal( nTransform, dv->normal );
 368                         VectorNormalize( dv->normal, dv->normal );
 369
 370                         /* ydnar: tek-fu celshading support for flat shaded shit */
 371                         if( flat )
 372                         {
 373                                 dv->st[ 0 ] = si->stFlat[ 0 ];
 374                                 dv->st[ 1 ] = si->stFlat[ 1 ];
 375                         }
 376
 377                         /* ydnar: gs mods: added support for explicit shader texcoord generation */
 378                         else if( si->tcGen )
 379                         {
 380                                 /* project the texture */
 381                                 dv->st[ 0 ] = DotProduct( si->vecs[ 0 ], dv->xyz );
 382                                 dv->st[ 1 ] = DotProduct( si->vecs[ 1 ], dv->xyz );
 383                         }
 384
 385                         /* normal texture coordinates */
 386                         else
 387                         {
 388                                 st = PicoGetSurfaceST( surface, 0, i );
 389                                 dv->st[ 0 ] = st[ 0 ];
 390                                 dv->st[ 1 ] = st[ 1 ];
 391                         }
 392
 393                         /* set lightmap/color bits */
 394                         color = PicoGetSurfaceColor( surface, 0, i );
 395                         for( j = 0; j < MAX_LIGHTMAPS; j++ )
 396                         {
 397                                 dv->lightmap[ j ][ 0 ] = 0.0f;
 398                                 dv->lightmap[ j ][ 1 ] = 0.0f;
 399                                 if(spawnFlags & 32) // spawnflag 32: model color -> alpha hack
 400                                 {
 401                                         dv->color[ j ][ 0 ] = 255.0f;
 402                                         dv->color[ j ][ 1 ] = 255.0f;
 403                                         dv->color[ j ][ 2 ] = 255.0f;
 404                                         dv->color[ j ][ 3 ] = RGBTOGRAY( color );
 405                                 }
 406                                 else
 407                                 {
 408                                         dv->color[ j ][ 0 ] = color[ 0 ];
 409                                         dv->color[ j ][ 1 ] = color[ 1 ];
 410                                         dv->color[ j ][ 2 ] = color[ 2 ];
 411                                         dv->color[ j ][ 3 ] = color[ 3 ];
 412                                 }
 413                         }
 414                 }
 415
 416                 /* copy indexes */
 417                 indexes = PicoGetSurfaceIndexes( surface, 0 );
 418                 for( i = 0; i < ds->numIndexes; i++ )
 419                         ds->indexes[ i ] = indexes[ i ];
 420
 421                 /* set cel shader */
 422                 ds->celShader = celShader;
 423
 424                 /* ydnar: giant hack land: generate clipping brushes for model triangles */
 425                 if( si->clipModel || (spawnFlags & 2) ) /* 2nd bit */
 426                 {
 427                         vec3_t          points[ 4 ], backs[ 3 ];
 428                         vec4_t          plane, reverse, pa, pb, pc;
 429
 430
 431                         /* temp hack */
 432                         if( !si->clipModel && !(si->compileFlags & C_SOLID) )
 433                                 continue;
 434
 435                         /* walk triangle list */
 436                         for( i = 0; i < ds->numIndexes; i += 3 )
 437                         {
 438                                 /* overflow hack */
 439                                 AUTOEXPAND_BY_REALLOC(mapplanes, (nummapplanes+64) << 1, allocatedmapplanes, 1024);
 440
 441                                 /* make points and back points */
 442                                 for( j = 0; j < 3; j++ )
 443                                 {
 444                                         /* get vertex */
 445                                         dv = &ds->verts[ ds->indexes[ i + j ] ];
 446
 447                                         /* copy xyz */
 448                                         VectorCopy( dv->xyz, points[ j ] );
 449                                         VectorCopy( dv->xyz, backs[ j ] );
 450
 451                                         /* find nearest axial to normal and push back points opposite */
 452                                         /* note: this doesn't work as well as simply using the plane of the triangle, below */
 453                                         for( k = 0; k < 3; k++ )
 454                                         {
 455                                                 if( fabs( dv->normal[ k ] ) >= fabs( dv->normal[ (k + 1) % 3 ] ) &&
 456                                                         fabs( dv->normal[ k ] ) >= fabs( dv->normal[ (k + 2) % 3 ] ) )
 457                                                 {
 458                                                         backs[ j ][ k ] += dv->normal[ k ] < 0.0f ? 64.0f : -64.0f;
 459                                                         break;
 460                                                 }
 461                                         }
 462                                 }
 463
 464                                 VectorCopy( points[0], points[3] ); // for cyclic usage
 465
 466                                 /* make plane for triangle */
 467                                 // div0: add some extra spawnflags:
 468                                 //   0: snap normals to axial planes for extrusion
 469                                 //   8: extrude with the original normals
 470                                 //  16: extrude only with up/down normals (ideal for terrain)
 471                                 //  24: extrude by distance zero (may need engine changes)
 472                                 if( PlaneFromPoints( plane, points[ 0 ], points[ 1 ], points[ 2 ] ) )
 473                                 {
 474                                         vec3_t bestNormal;
 475                                         float backPlaneDistance = 2;
 476
 477                                         if(spawnFlags & 8) // use a DOWN normal
 478                                         {
 479                                                 if(spawnFlags & 16)
 480                                                 {
 481                                                         // 24: normal as is, and zero width (broken)
 482                                                         VectorCopy(plane, bestNormal);
 483                                                 }
 484                                                 else
 485                                                 {
 486                                                         // 8: normal as is
 487                                                         VectorCopy(plane, bestNormal);
 488                                                 }
 489                                         }
 490                                         else
 491                                         {
 492                                                 if(spawnFlags & 16)
 493                                                 {
 494                                                         // 16: UP/DOWN normal
 495                                                         VectorSet(bestNormal, 0, 0, (plane[2] >= 0 ? 1 : -1));
 496                                                 }
 497                                                 else
 498                                                 {
 499                                                         // 0: axial normal
 500                                                         if(fabs(plane[0]) > fabs(plane[1])) // x>y
 501                                                                 if(fabs(plane[1]) > fabs(plane[2])) // x>y, y>z
 502                                                                         VectorSet(bestNormal, (plane[0] >= 0 ? 1 : -1), 0, 0);
 503                                                                 else // x>y, z>=y
 504                                                                         if(fabs(plane[0]) > fabs(plane[2])) // x>z, z>=y
 505                                                                                 VectorSet(bestNormal, (plane[0] >= 0 ? 1 : -1), 0, 0);
 506                                                                         else // z>=x, x>y
 507                                                                                 VectorSet(bestNormal, 0, 0, (plane[2] >= 0 ? 1 : -1));
 508                                                         else // y>=x
 509                                                                 if(fabs(plane[1]) > fabs(plane[2])) // y>z, y>=x
 510                                                                         VectorSet(bestNormal, 0, (plane[1] >= 0 ? 1 : -1), 0);
 511                                                                 else // z>=y, y>=x
 512                                                                         VectorSet(bestNormal, 0, 0, (plane[2] >= 0 ? 1 : -1));
 513                                                 }
 514                                         }
 515
 516                                         /* build a brush */
 517                                         buildBrush = AllocBrush( 48 );
 518                                         buildBrush->entityNum = mapEntityNum;
 519                                         buildBrush->original = buildBrush;
 520                                         buildBrush->contentShader = si;
 521                                         buildBrush->compileFlags = si->compileFlags;
 522                                         buildBrush->contentFlags = si->contentFlags;
 523                                         normalEpsilon_save = normalEpsilon;
 524                                         distanceEpsilon_save = distanceEpsilon;
 525                                         if(si->compileFlags & C_STRUCTURAL) // allow forced structural brushes here
 526                                         {
 527                                                 buildBrush->detail = qfalse;
 528
 529                                                 // only allow EXACT matches when snapping for these (this is mostly for caulk brushes inside a model)
 530                                                 if(normalEpsilon > 0)
 531                                                         normalEpsilon = 0;
 532                                                 if(distanceEpsilon > 0)
 533                                                         distanceEpsilon = 0;
 534                                         }
 535                                         else
 536                                                 buildBrush->detail = qtrue;
 537
 538                                         /* regenerate back points */
 539                                         for( j = 0; j < 3; j++ )
 540                                         {
 541                                                 /* get vertex */
 542                                                 dv = &ds->verts[ ds->indexes[ i + j ] ];
 543
 544                                                 // shift by some units
 545                                                 VectorMA(dv->xyz, -64.0f, bestNormal, backs[j]); // 64 prevents roundoff errors a bit
 546                                         }
 547
 548                                         /* make back plane */
 549                                         VectorScale( plane, -1.0f, reverse );
 550                                         reverse[ 3 ] = -plane[ 3 ];
 551                                         if((spawnFlags & 24) != 24)
 552                                                 reverse[3] += DotProduct(bestNormal, plane) * backPlaneDistance;
 553                                         // that's at least sqrt(1/3) backPlaneDistance, unless in DOWN mode; in DOWN mode, we are screwed anyway if we encounter a plane that's perpendicular to the xy plane)
 554
 555                                         if( PlaneFromPoints( pa, points[ 2 ], points[ 1 ], backs[ 1 ] ) &&
 556                                                         PlaneFromPoints( pb, points[ 1 ], points[ 0 ], backs[ 0 ] ) &&
 557                                                         PlaneFromPoints( pc, points[ 0 ], points[ 2 ], backs[ 2 ] ) )
 558                                         {
 559                                                 /* set up brush sides */
 560                                                 buildBrush->numsides = 5;
 561                                                 buildBrush->sides[ 0 ].shaderInfo = si;
 562                                                 for( j = 1; j < buildBrush->numsides; j++ )
 563                                                         buildBrush->sides[ j ].shaderInfo = NULL; // don't emit these faces as draw surfaces, should make smaller BSPs; hope this works
 564
 565                                                 buildBrush->sides[ 0 ].planenum = FindFloatPlane( plane, plane[ 3 ], 3, points );
 566                                                 buildBrush->sides[ 1 ].planenum = FindFloatPlane( pa, pa[ 3 ], 2, &points[ 1 ] ); // pa contains points[1] and points[2]
 567                                                 buildBrush->sides[ 2 ].planenum = FindFloatPlane( pb, pb[ 3 ], 2, &points[ 0 ] ); // pb contains points[0] and points[1]
 568                                                 buildBrush->sides[ 3 ].planenum = FindFloatPlane( pc, pc[ 3 ], 2, &points[ 2 ] ); // pc contains points[2] and points[0] (copied to points[3]
 569                                                 buildBrush->sides[ 4 ].planenum = FindFloatPlane( reverse, reverse[ 3 ], 3, backs );
 570                                         }
 571                                         else
 572                                         {
 573                                                 free(buildBrush);
 574                                                 continue;
 575                                         }
 576
 577                                         normalEpsilon = normalEpsilon_save;
 578                                         distanceEpsilon = distanceEpsilon_save;
 579
 580                                         /* add to entity */
 581                                         if( CreateBrushWindings( buildBrush ) )
 582                                         {
 583                                                 AddBrushBevels();
 584                                                 //%     EmitBrushes( buildBrush, NULL, NULL );
 585                                                 buildBrush->next = entities[ mapEntityNum ].brushes;
 586                                                 entities[ mapEntityNum ].brushes = buildBrush;
 587                                                 entities[ mapEntityNum ].numBrushes++;
 588                                         }
 589                                         else
 590                                                 free( buildBrush );
 591                                 }
 592                         }
 593                 }
 594         }
 595 }
 596
 597
 598
 599 /*
 600 AddTriangleModels()
 601 adds misc_model surfaces to the bsp
 602 */
 603
 604 void AddTriangleModels( entity_t *e )
 605 {
 606         int                             num, frame, castShadows, recvShadows, spawnFlags;
 607         entity_t                *e2;
 608         const char              *targetName;
 609         const char              *target, *model, *value;
 610         char                    shader[ MAX_QPATH ];
 611         shaderInfo_t    *celShader;
 612         float                   temp, baseLightmapScale, lightmapScale;
 613         float                   shadeAngle;
 614         int                             lightmapSampleSize;
 615         vec3_t                  origin, scale, angles;
 616         m4x4_t                  transform;
 617         epair_t                 *ep;
 618         remap_t                 *remap, *remap2;
 619         char                    *split;
 620
 621
 622         /* note it */
 623         Sys_FPrintf( SYS_VRB, "--- AddTriangleModels ---\n" );
 624
 625         /* get current brush entity targetname */
 626         if( e == entities )
 627                 targetName = "";
 628         else
 629         {
 630                 targetName = ValueForKey( e, "targetname" );
 631
 632                 /* misc_model entities target non-worldspawn brush model entities */
 633                 if( targetName[ 0 ] == '\0' )
 634                         return;
 635         }
 636
 637         /* get lightmap scale */
 638         /* vortex: added _ls key (short name of lightmapscale) */
 639         baseLightmapScale = 0.0f;
 640         if( strcmp( "", ValueForKey( e, "lightmapscale" ) ) ||
 641                 strcmp( "", ValueForKey( e, "_lightmapscale" ) ) ||
 642                 strcmp( "", ValueForKey( e, "_ls" ) ) )
 643         {
 644                 baseLightmapScale = FloatForKey( e, "lightmapscale" );
 645                 if( baseLightmapScale <= 0.0f )
 646                         baseLightmapScale = FloatForKey( e, "_lightmapscale" );
 647                 if( baseLightmapScale <= 0.0f )
 648                         baseLightmapScale = FloatForKey( e, "_ls" );
 649                 if( baseLightmapScale < 0.0f )
 650                         baseLightmapScale = 0.0f;
 651                 if( baseLightmapScale > 0.0f )
 652                         Sys_Printf( "World Entity has lightmap scale of %.4f\n", baseLightmapScale );
 653         }
 654
 655
 656         /* walk the entity list */
 657         for( num = 1; num < numEntities; num++ )
 658         {
 659                 /* get e2 */
 660                 e2 = &entities[ num ];
 661
 662                 /* convert misc_models into raw geometry */
 663                 if( Q_stricmp( "misc_model", ValueForKey( e2, "classname" ) ) )
 664                         continue;
 665
 666                 /* ydnar: added support for md3 models on non-worldspawn models */
 667                 target = ValueForKey( e2, "target" );
 668                 if( strcmp( target, targetName ) )
 669                         continue;
 670
 671                 /* get model name */
 672                 model = ValueForKey( e2, "model" );
 673                 if( model[ 0 ] == '\0' )
 674                 {
 675                         Sys_Printf( "WARNING: misc_model at %i %i %i without a model key\n",
 676                                 (int) origin[ 0 ], (int) origin[ 1 ], (int) origin[ 2 ] );
 677                         continue;
 678                 }
 679
 680                 /* get model frame */
 681                 frame = IntForKey( e2, "_frame" );
 682
 683                 /* worldspawn (and func_groups) default to cast/recv shadows in worldspawn group */
 684                 if( e == entities )
 685                 {
 686                         castShadows = WORLDSPAWN_CAST_SHADOWS;
 687                         recvShadows = WORLDSPAWN_RECV_SHADOWS;
 688                 }
 689
 690                 /* other entities don't cast any shadows, but recv worldspawn shadows */
 691                 else
 692                 {
 693                         castShadows = ENTITY_CAST_SHADOWS;
 694                         recvShadows = ENTITY_RECV_SHADOWS;
 695                 }
 696
 697                 /* get explicit shadow flags */
 698                 GetEntityShadowFlags( e2, e, &castShadows, &recvShadows );
 699
 700                 /* get spawnflags */
 701                 spawnFlags = IntForKey( e2, "spawnflags" );
 702
 703                 /* get origin */
 704                 GetVectorForKey( e2, "origin", origin );
 705                 VectorSubtract( origin, e->origin, origin );    /* offset by parent */
 706
 707                 /* get scale */
 708                 scale[ 0 ] = scale[ 1 ] = scale[ 2 ] = 1.0f;
 709                 temp = FloatForKey( e2, "modelscale" );
 710                 if( temp != 0.0f )
 711                         scale[ 0 ] = scale[ 1 ] = scale[ 2 ] = temp;
 712                 value = ValueForKey( e2, "modelscale_vec" );
 713                 if( value[ 0 ] != '\0' )
 714                         sscanf( value, "%f %f %f", &scale[ 0 ], &scale[ 1 ], &scale[ 2 ] );
 715
 716                 /* get "angle" (yaw) or "angles" (pitch yaw roll) */
 717                 angles[ 0 ] = angles[ 1 ] = angles[ 2 ] = 0.0f;
 718                 angles[ 2 ] = FloatForKey( e2, "angle" );
 719                 value = ValueForKey( e2, "angles" );
 720                 if( value[ 0 ] != '\0' )
 721                         sscanf( value, "%f %f %f", &angles[ 1 ], &angles[ 2 ], &angles[ 0 ] );
 722
 723                 /* set transform matrix (thanks spog) */
 724                 m4x4_identity( transform );
 725                 m4x4_pivoted_transform_by_vec3( transform, origin, angles, eXYZ, scale, vec3_origin );
 726
 727                 /* get shader remappings */
 728                 remap = NULL;
 729                 for( ep = e2->epairs; ep != NULL; ep = ep->next )
 730                 {
 731                         /* look for keys prefixed with "_remap" */
 732                         if( ep->key != NULL && ep->value != NULL &&
 733                                 ep->key[ 0 ] != '\0' && ep->value[ 0 ] != '\0' &&
 734                                 !Q_strncasecmp( ep->key, "_remap", 6 ) )
 735                         {
 736                                 /* create new remapping */
 737                                 remap2 = remap;
 738                                 remap = safe_malloc( sizeof( *remap ) );
 739                                 remap->next = remap2;
 740                                 strcpy( remap->from, ep->value );
 741
 742                                 /* split the string */
 743                                 split = strchr( remap->from, ';' );
 744                                 if( split == NULL )
 745                                 {
 746                                         Sys_Printf( "WARNING: Shader _remap key found in misc_model without a ; character\n" );
 747                                         free( remap );
 748                                         remap = remap2;
 749                                         continue;
 750                                 }
 751
 752                                 /* store the split */
 753                                 *split = '\0';
 754                                 strcpy( remap->to, (split + 1) );
 755
 756                                 /* note it */
 757                                 //%     Sys_FPrintf( SYS_VRB, "Remapping %s to %s\n", remap->from, remap->to );
 758                         }
 759                 }
 760
 761                 /* ydnar: cel shader support */
 762                 value = ValueForKey( e2, "_celshader" );
 763                 if( value[ 0 ] == '\0' )
 764                         value = ValueForKey( &entities[ 0 ], "_celshader" );
 765                 if( value[ 0 ] != '\0' )
 766                 {
 767                         sprintf( shader, "textures/%s", value );
 768                         celShader = ShaderInfoForShader( shader );
 769                 }
 770                 else
 771                         celShader = *globalCelShader ? ShaderInfoForShader(globalCelShader) : NULL;
 772
 773                 /* jal : entity based _samplesize */
 774                 lightmapSampleSize = 0;
 775                 if ( strcmp( "", ValueForKey( e2, "_lightmapsamplesize" ) ) )
 776                         lightmapSampleSize = IntForKey( e2, "_lightmapsamplesize" );
 777                 else if ( strcmp( "", ValueForKey( e2, "_samplesize" ) ) )
 778                         lightmapSampleSize = IntForKey( e2, "_samplesize" );
 779
 780                 if( lightmapSampleSize < 0 )
 781                         lightmapSampleSize = 0;
 782
 783                 if( lightmapSampleSize > 0.0f )
 784                         Sys_Printf( "misc_model has lightmap sample size of %.d\n", lightmapSampleSize );
 785
 786                 /* get lightmap scale */
 787                 /* vortex: added _ls key (short name of lightmapscale) */
 788                 lightmapScale = 0.0f;
 789                 if( strcmp( "", ValueForKey( e2, "lightmapscale" ) ) ||
 790                         strcmp( "", ValueForKey( e2, "_lightmapscale" ) ) ||
 791                         strcmp( "", ValueForKey( e2, "_ls" ) ) )
 792                 {
 793                         lightmapScale = FloatForKey( e2, "lightmapscale" );
 794                         if( lightmapScale <= 0.0f )
 795                                 lightmapScale = FloatForKey( e2, "_lightmapscale" );
 796                         if( lightmapScale <= 0.0f )
 797                                 lightmapScale = FloatForKey( e2, "_ls" );
 798                         if( lightmapScale < 0.0f )
 799                                 lightmapScale = 0.0f;
 800                         if( lightmapScale > 0.0f )
 801                                 Sys_Printf( "misc_model has lightmap scale of %.4f\n", lightmapScale );
 802                 }
 803
 804                 /* jal : entity based _shadeangle */
 805                 shadeAngle = 0.0f;
 806                 if ( strcmp( "", ValueForKey( e2, "_shadeangle" ) ) )
 807                         shadeAngle = FloatForKey( e2, "_shadeangle" );
 808                 /* vortex' aliases */
 809                 else if ( strcmp( "", ValueForKey( mapEnt, "_smoothnormals" ) ) )
 810                         shadeAngle = FloatForKey( mapEnt, "_smoothnormals" );
 811                 else if ( strcmp( "", ValueForKey( mapEnt, "_sn" ) ) )
 812                         shadeAngle = FloatForKey( mapEnt, "_sn" );
 813                 else if ( strcmp( "", ValueForKey( mapEnt, "_smooth" ) ) )
 814                         shadeAngle = FloatForKey( mapEnt, "_smooth" );
 815
 816                 if( shadeAngle < 0.0f )
 817                         shadeAngle = 0.0f;
 818
 819                 if( shadeAngle > 0.0f )
 820                         Sys_Printf( "misc_model has shading angle of %.4f\n", shadeAngle );
 821
 822                 /* insert the model */
 823                 InsertModel( (char*) model, frame, transform, remap, celShader, mapEntityNum, castShadows, recvShadows, spawnFlags, lightmapScale, lightmapSampleSize, shadeAngle );
 824
 825                 /* free shader remappings */
 826                 while( remap != NULL )
 827                 {
 828                         remap2 = remap->next;
 829                         free( remap );
 830                         remap = remap2;
 831                 }
 832         }
 833 }