source/blender/blenkernel/intern/object.c

   1 /* object.c
   2  *
   3  *
   4  * $Id$
   5  *
   6  * ***** BEGIN GPL LICENSE BLOCK *****
   7  *
   8  * This program is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU General Public License
  10  * as published by the Free Software Foundation; either version 2
  11  * of the License, or (at your option) any later version.
  12  *
  13  * This program 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 this program; if not, write to the Free Software Foundation,
  20  * Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  21  *
  22  * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
  23  * All rights reserved.
  24  *
  25  * The Original Code is: all of this file.
  26  *
  27  * Contributor(s): none yet.
  28  *
  29  * ***** END GPL LICENSE BLOCK *****
  30  */
  31
  32 #include <string.h>
  33 #include <math.h>
  34 #include <stdio.h>
  35
  36 #ifdef HAVE_CONFIG_H
  37 #include <config.h>
  38 #endif
  39
  40 #include "MEM_guardedalloc.h"
  41
  42 #include "DNA_action_types.h"
  43 #include "DNA_armature_types.h"
  44 #include "DNA_camera_types.h"
  45 #include "DNA_constraint_types.h"
  46 #include "DNA_curve_types.h"
  47 #include "DNA_group_types.h"
  48 #include "DNA_ipo_types.h"
  49 #include "DNA_lamp_types.h"
  50 #include "DNA_lattice_types.h"
  51 #include "DNA_material_types.h"
  52 #include "DNA_mesh_types.h"
  53 #include "DNA_meta_types.h"
  54 #include "DNA_curve_types.h"
  55 #include "DNA_meshdata_types.h"
  56 #include "DNA_modifier_types.h"
  57 #include "DNA_nla_types.h"
  58 #include "DNA_object_types.h"
  59 #include "DNA_object_force.h"
  60 #include "DNA_object_fluidsim.h"
  61 #include "DNA_oops_types.h"
  62 #include "DNA_particle_types.h"
  63 #include "DNA_scene_types.h"
  64 #include "DNA_screen_types.h"
  65 #include "DNA_space_types.h"
  66 #include "DNA_texture_types.h"
  67 #include "DNA_userdef_types.h"
  68 #include "DNA_view3d_types.h"
  69 #include "DNA_world_types.h"
  70
  71 #include "BKE_armature.h"
  72 #include "BKE_action.h"
  73 #include "BKE_colortools.h"
  74 #include "BKE_deform.h"
  75 #include "BKE_DerivedMesh.h"
  76 #include "BKE_nla.h"
  77
  78 #include "BLI_blenlib.h"
  79 #include "BLI_arithb.h"
  80 #include "BLI_editVert.h"
  81
  82 #include "BKE_utildefines.h"
  83 #include "BKE_bad_level_calls.h"
  84
  85 #include "BKE_main.h"
  86 #include "BKE_global.h"
  87
  88 #include "BKE_anim.h"
  89 #include "BKE_blender.h"
  90 #include "BKE_constraint.h"
  91 #include "BKE_curve.h"
  92 #include "BKE_displist.h"
  93 #include "BKE_group.h"
  94 #include "BKE_icons.h"
  95 #include "BKE_ipo.h"
  96 #include "BKE_key.h"
  97 #include "BKE_lattice.h"
  98 #include "BKE_library.h"
  99 #include "BKE_mesh.h"
 100 #include "BKE_mball.h"
 101 #include "BKE_modifier.h"
 102 #include "BKE_object.h"
 103 #include "BKE_particle.h"
 104 #include "BKE_pointcache.h"
 105 #include "BKE_property.h"
 106 #include "BKE_sca.h"
 107 #include "BKE_scene.h"
 108 #include "BKE_screen.h"
 109 #include "BKE_softbody.h"
 110
 111 #include "LBM_fluidsim.h"
 112
 113 #include "BPY_extern.h"
 114
 115 #include "blendef.h"
 116
 117 /* Local function protos */
 118 static void solve_parenting (Object *ob, Object *par, float obmat[][4], float slowmat[][4], int simul);
 119
 120 float originmat[3][3];  /* after where_is_object(), can be used in other functions (bad!) */
 121 Object workob;
 122
 123 void clear_workob(void)
 124 {
 125         memset(&workob, 0, sizeof(Object));
 126
 127         workob.size[0]= workob.size[1]= workob.size[2]= 1.0;
 128
 129 }
 130
 131 void copy_baseflags()
 132 {
 133         Base *base= G.scene->base.first;
 134
 135         while(base) {
 136                 base->object->flag= base->flag;
 137                 base= base->next;
 138         }
 139 }
 140
 141 void copy_objectflags()
 142 {
 143         Base *base= G.scene->base.first;
 144
 145         while(base) {
 146                 base->flag= base->object->flag;
 147                 base= base->next;
 148         }
 149 }
 150
 151 void update_base_layer(Object *ob)
 152 {
 153         Base *base= G.scene->base.first;
 154
 155         while (base) {
 156                 if (base->object == ob) base->lay= ob->lay;
 157                 base= base->next;
 158         }
 159 }
 160
 161 void object_free_particlesystems(Object *ob)
 162 {
 163         while(ob->particlesystem.first){
 164                 ParticleSystem *psys = ob->particlesystem.first;
 165
 166                 BLI_remlink(&ob->particlesystem,psys);
 167
 168                 psys_free(ob,psys);
 169         }
 170 }
 171
 172 void object_free_softbody(Object *ob)
 173 {
 174         if(ob->soft) {
 175                 sbFree(ob->soft);
 176                 ob->soft= NULL;
 177         }
 178 }
 179
 180 void object_free_modifiers(Object *ob)
 181 {
 182         while (ob->modifiers.first) {
 183                 ModifierData *md = ob->modifiers.first;
 184
 185                 BLI_remlink(&ob->modifiers, md);
 186
 187                 modifier_free(md);
 188         }
 189
 190         /* particle modifiers were freed, so free the particlesystems as well */
 191         object_free_particlesystems(ob);
 192
 193         /* same for softbody */
 194         object_free_softbody(ob);
 195 }
 196
 197 /* here we will collect all local displist stuff */
 198 /* also (ab)used in depsgraph */
 199 void object_free_display(Object *ob)
 200 {
 201         if(ob->derivedDeform) {
 202                 ob->derivedDeform->needsFree = 1;
 203                 ob->derivedDeform->release(ob->derivedDeform);
 204                 ob->derivedDeform= NULL;
 205         }
 206         if(ob->derivedFinal) {
 207                 ob->derivedFinal->needsFree = 1;
 208                 ob->derivedFinal->release(ob->derivedFinal);
 209                 ob->derivedFinal= NULL;
 210         }
 211
 212         freedisplist(&ob->disp);
 213 }
 214
 215 /* do not free object itself */
 216 void free_object(Object *ob)
 217 {
 218         int a;
 219
 220         object_free_display(ob);
 221
 222         /* disconnect specific data */
 223         if(ob->data) {
 224                 ID *id= ob->data;
 225                 id->us--;
 226                 if(id->us==0) {
 227                         if(ob->type==OB_MESH) unlink_mesh(ob->data);
 228                         else if(ob->type==OB_CURVE) unlink_curve(ob->data);
 229                         else if(ob->type==OB_MBALL) unlink_mball(ob->data);
 230                 }
 231                 ob->data= 0;
 232         }
 233
 234         for(a=0; a<ob->totcol; a++) {
 235                 if(ob->mat[a]) ob->mat[a]->id.us--;
 236         }
 237         if(ob->mat) MEM_freeN(ob->mat);
 238         ob->mat= 0;
 239         if(ob->bb) MEM_freeN(ob->bb);
 240         ob->bb= 0;
 241         if(ob->path) free_path(ob->path);
 242         ob->path= 0;
 243         if(ob->ipo) ob->ipo->id.us--;
 244         if(ob->action) ob->action->id.us--;
 245         if(ob->poselib) ob->poselib->id.us--;
 246         if(ob->dup_group) ob->dup_group->id.us--;
 247         if(ob->defbase.first)
 248                 BLI_freelistN(&ob->defbase);
 249         if(ob->pose)
 250                 free_pose(ob->pose);
 251         free_properties(&ob->prop);
 252         object_free_modifiers(ob);
 253
 254         free_sensors(&ob->sensors);
 255         free_controllers(&ob->controllers);
 256         free_actuators(&ob->actuators);
 257
 258         free_constraints(&ob->constraints);
 259         free_constraint_channels(&ob->constraintChannels);
 260         free_nlastrips(&ob->nlastrips);
 261
 262         BPY_free_scriptlink(&ob->scriptlink);
 263
 264         if(ob->pd){
 265                 if(ob->pd->tex)
 266                         ob->pd->tex->id.us--;
 267                 MEM_freeN(ob->pd);
 268         }
 269         if(ob->soft) sbFree(ob->soft);
 270         if(ob->fluidsimSettings) fluidsimSettingsFree(ob->fluidsimSettings);
 271 }
 272
 273 static void unlink_object__unlinkModifierLinks(void *userData, Object *ob, Object **obpoin)
 274 {
 275         Object *unlinkOb = userData;
 276
 277         if (*obpoin==unlinkOb) {
 278                 *obpoin = NULL;
 279                 ob->recalc |= OB_RECALC;
 280         }
 281 }
 282 void unlink_object(Object *ob)
 283 {
 284         Object *obt;
 285         Material *mat;
 286         World *wrld;
 287         bScreen *sc;
 288         Scene *sce;
 289         Curve *cu;
 290         Tex *tex;
 291         Ipo *ipo;
 292         Group *group;
 293         Camera *camera;
 294         bConstraint *con;
 295         bActionStrip *strip;
 296         ModifierData *md;
 297         int a;
 298
 299         unlink_controllers(&ob->controllers);
 300         unlink_actuators(&ob->actuators);
 301
 302         /* check all objects: parents en bevels and fields, also from libraries */
 303         obt= G.main->object.first;
 304         while(obt) {
 305                 if(obt->proxy==ob)
 306                         obt->proxy= NULL;
 307                 if(obt->proxy_from==ob) {
 308                         obt->proxy_from= NULL;
 309                         obt->recalc |= OB_RECALC_OB;
 310                 }
 311                 if(obt->proxy_group==ob)
 312                         obt->proxy_group= NULL;
 313
 314                 if(obt->parent==ob) {
 315                         obt->parent= NULL;
 316                         obt->recalc |= OB_RECALC;
 317                 }
 318
 319                 if(obt->track==ob) {
 320                         obt->track= NULL;
 321                         obt->recalc |= OB_RECALC_OB;
 322                 }
 323
 324                 modifiers_foreachObjectLink(obt, unlink_object__unlinkModifierLinks, ob);
 325
 326                 if ELEM(obt->type, OB_CURVE, OB_FONT) {
 327                         cu= obt->data;
 328
 329                         if(cu->bevobj==ob) {
 330                                 cu->bevobj= NULL;
 331                                 obt->recalc |= OB_RECALC;
 332                         }
 333                         if(cu->taperobj==ob) {
 334                                 cu->taperobj= NULL;
 335                                 obt->recalc |= OB_RECALC;
 336                         }
 337                         if(cu->textoncurve==ob) {
 338                                 cu->textoncurve= NULL;
 339                                 obt->recalc |= OB_RECALC;
 340                         }
 341                 }
 342                 else if(obt->type==OB_ARMATURE && obt->pose) {
 343                         bPoseChannel *pchan;
 344                         for(pchan= obt->pose->chanbase.first; pchan; pchan= pchan->next) {
 345                                 for (con = pchan->constraints.first; con; con=con->next) {
 346                                         bConstraintTypeInfo *cti= constraint_get_typeinfo(con);
 347                                         ListBase targets = {NULL, NULL};
 348                                         bConstraintTarget *ct;
 349
 350                                         if (cti && cti->get_constraint_targets) {
 351                                                 cti->get_constraint_targets(con, &targets);
 352
 353                                                 for (ct= targets.first; ct; ct= ct->next) {
 354                                                         if (ct->tar == ob) {
 355                                                                 ct->tar = NULL;
 356                                                                 strcpy(ct->subtarget, "");
 357                                                                 obt->recalc |= OB_RECALC_DATA;
 358                                                         }
 359                                                 }
 360
 361                                                 if (cti->flush_constraint_targets)
 362                                                         cti->flush_constraint_targets(con, &targets, 0);
 363                                         }
 364                                 }
 365                                 if(pchan->custom==ob)
 366                                         pchan->custom= NULL;
 367                         }
 368                 }
 369
 370                 sca_remove_ob_poin(obt, ob);
 371
 372                 for (con = obt->constraints.first; con; con=con->next) {
 373                         bConstraintTypeInfo *cti= constraint_get_typeinfo(con);
 374                         ListBase targets = {NULL, NULL};
 375                         bConstraintTarget *ct;
 376
 377                         if (cti && cti->get_constraint_targets) {
 378                                 cti->get_constraint_targets(con, &targets);
 379
 380                                 for (ct= targets.first; ct; ct= ct->next) {
 381                                         if (ct->tar == ob) {
 382                                                 ct->tar = NULL;
 383                                                 strcpy(ct->subtarget, "");
 384                                                 obt->recalc |= OB_RECALC_DATA;
 385                                         }
 386                                 }
 387
 388                                 if (cti->flush_constraint_targets)
 389                                         cti->flush_constraint_targets(con, &targets, 0);
 390                         }
 391                 }
 392
 393                 /* object is deflector or field */
 394                 if(ob->pd) {
 395                         if(obt->soft)
 396                                 obt->recalc |= OB_RECALC_DATA;
 397
 398                         /* cloth */
 399                         for(md=obt->modifiers.first; md; md=md->next)
 400                                 if(md->type == eModifierType_Cloth)
 401                                         obt->recalc |= OB_RECALC_DATA;
 402                 }
 403
 404                 /* strips */
 405                 for(strip= obt->nlastrips.first; strip; strip= strip->next) {
 406                         if(strip->object==ob)
 407                                 strip->object= NULL;
 408
 409                         if(strip->modifiers.first) {
 410                                 bActionModifier *amod;
 411                                 for(amod= strip->modifiers.first; amod; amod= amod->next)
 412                                         if(amod->ob==ob)
 413                                                 amod->ob= NULL;
 414                         }
 415                 }
 416
 417                 /* particle systems */
 418                 if(obt->particlesystem.first) {
 419                         ParticleSystem *tpsys= obt->particlesystem.first;
 420                         for(; tpsys; tpsys=tpsys->next) {
 421                                 if(tpsys->keyed_ob==ob) {
 422                                         ParticleSystem *psys= BLI_findlink(&ob->particlesystem,tpsys->keyed_psys-1);
 423
 424                                         if(psys && psys->keyed_ob) {
 425                                                 tpsys->keyed_ob= psys->keyed_ob;
 426                                                 tpsys->keyed_psys= psys->keyed_psys;
 427                                         }
 428                                         else
 429                                                 tpsys->keyed_ob= NULL;
 430
 431                                         obt->recalc |= OB_RECALC_DATA;
 432                                 }
 433
 434                                 if(tpsys->target_ob==ob) {
 435                                         tpsys->target_ob= NULL;
 436                                         obt->recalc |= OB_RECALC_DATA;
 437                                 }
 438
 439                                 if(tpsys->part->dup_ob==ob)
 440                                         tpsys->part->dup_ob= NULL;
 441
 442                                 if(tpsys->part->flag&PART_STICKY) {
 443                                         ParticleData *pa;
 444                                         int p;
 445
 446                                         for(p=0,pa=tpsys->particles; p<tpsys->totpart; p++,pa++) {
 447                                                 if(pa->stick_ob==ob) {
 448                                                         pa->stick_ob= 0;
 449                                                         pa->flag &= ~PARS_STICKY;
 450                                                 }
 451                                         }
 452                                 }
 453                         }
 454                         if(ob->pd)
 455                                 obt->recalc |= OB_RECALC_DATA;
 456                 }
 457
 458                 obt= obt->id.next;
 459         }
 460
 461         /* materials */
 462         mat= G.main->mat.first;
 463         while(mat) {
 464
 465                 for(a=0; a<MAX_MTEX; a++) {
 466                         if(mat->mtex[a] && ob==mat->mtex[a]->object) {
 467                                 /* actually, test for lib here... to do */
 468                                 mat->mtex[a]->object= NULL;
 469                         }
 470                 }
 471
 472                 mat= mat->id.next;
 473         }
 474
 475         /* textures */
 476         tex= G.main->tex.first;
 477         while(tex) {
 478                 if(tex->env) {
 479                         if(tex->env->object == ob) tex->env->object= NULL;
 480                 }
 481                 tex= tex->id.next;
 482         }
 483
 484         /* mballs */
 485         if(ob->type==OB_MBALL) {
 486                 obt= find_basis_mball(ob);
 487                 if(obt) freedisplist(&obt->disp);
 488         }
 489
 490         /* worlds */
 491         wrld= G.main->world.first;
 492         while(wrld) {
 493                 if(wrld->id.lib==NULL) {
 494                         for(a=0; a<MAX_MTEX; a++) {
 495                                 if(wrld->mtex[a] && ob==wrld->mtex[a]->object)
 496                                         wrld->mtex[a]->object= NULL;
 497                         }
 498                 }
 499
 500                 wrld= wrld->id.next;
 501         }
 502
 503         /* scenes */
 504         sce= G.main->scene.first;
 505         while(sce) {
 506                 if(sce->id.lib==NULL) {
 507                         if(sce->camera==ob) sce->camera= NULL;
 508                 }
 509                 sce= sce->id.next;
 510         }
 511         /* ipos */
 512         ipo= G.main->ipo.first;
 513         while(ipo) {
 514                 if(ipo->id.lib==NULL) {
 515                         IpoCurve *icu;
 516                         for(icu= ipo->curve.first; icu; icu= icu->next) {
 517                                 if(icu->driver && icu->driver->ob==ob)
 518                                         icu->driver->ob= NULL;
 519                         }
 520                 }
 521                 ipo= ipo->id.next;
 522         }
 523
 524         /* screens */
 525         sc= G.main->screen.first;
 526         while(sc) {
 527                 ScrArea *sa= sc->areabase.first;
 528                 while(sa) {
 529                         SpaceLink *sl;
 530
 531                         for (sl= sa->spacedata.first; sl; sl= sl->next) {
 532                                 if(sl->spacetype==SPACE_VIEW3D) {
 533                                         View3D *v3d= (View3D*) sl;
 534
 535                                         if(v3d->camera==ob) {
 536                                                 v3d->camera= NULL;
 537                                                 if(v3d->persp==V3D_CAMOB) v3d->persp= V3D_PERSP;
 538                                         }
 539                                         if(v3d->localvd && v3d->localvd->camera==ob ) {
 540                                                 v3d->localvd->camera= NULL;
 541                                                 if(v3d->localvd->persp==V3D_CAMOB) v3d->localvd->persp= V3D_PERSP;
 542                                         }
 543                                 }
 544                                 else if(sl->spacetype==SPACE_IPO) {
 545                                         SpaceIpo *sipo= (SpaceIpo *)sl;
 546                                         if(sipo->from == (ID *)ob) sipo->from= NULL;
 547                                 }
 548                                 else if(sl->spacetype==SPACE_OOPS) {
 549                                         SpaceOops *so= (SpaceOops *)sl;
 550                                         Oops *oops;
 551
 552                                         oops= so->oops.first;
 553                                         while(oops) {
 554                                                 if(oops->id==(ID *)ob) oops->id= NULL;
 555                                                 oops= oops->next;
 556                                         }
 557                                         if(so->treestore) {
 558                                                 TreeStoreElem *tselem= so->treestore->data;
 559                                                 int a;
 560                                                 for(a=0; a<so->treestore->usedelem; a++, tselem++) {
 561                                                         if(tselem->id==(ID *)ob) tselem->id= NULL;
 562                                                 }
 563                                         }
 564                                         so->lockpoin= NULL;
 565                                 }
 566                         }
 567
 568                         sa= sa->next;
 569                 }
 570                 sc= sc->id.next;
 571         }
 572
 573         /* groups */
 574         group= G.main->group.first;
 575         while(group) {
 576                 rem_from_group(group, ob);
 577                 group= group->id.next;
 578         }
 579
 580         /* cameras */
 581         camera= G.main->camera.first;
 582         while(camera) {
 583                 if (camera->dof_ob==ob) {
 584                         camera->dof_ob = NULL;
 585                 }
 586                 camera= camera->id.next;
 587         }
 588 }
 589
 590 int exist_object(Object *obtest)
 591 {
 592         Object *ob;
 593
 594         if(obtest==NULL) return 0;
 595
 596         ob= G.main->object.first;
 597         while(ob) {
 598                 if(ob==obtest) return 1;
 599                 ob= ob->id.next;
 600         }
 601         return 0;
 602 }
 603
 604 void *add_camera(char *name)
 605 {
 606         Camera *cam;
 607
 608         cam=  alloc_libblock(&G.main->camera, ID_CA, name);
 609
 610         cam->lens= 35.0f;
 611         cam->angle= 49.14f;
 612         cam->clipsta= 0.1f;
 613         cam->clipend= 100.0f;
 614         cam->drawsize= 0.5f;
 615         cam->ortho_scale= 6.0;
 616         cam->flag |= CAM_SHOWTITLESAFE;
 617         cam->passepartalpha = 0.2f;
 618
 619         return cam;
 620 }
 621
 622 Camera *copy_camera(Camera *cam)
 623 {
 624         Camera *camn;
 625
 626         camn= copy_libblock(cam);
 627         id_us_plus((ID *)camn->ipo);
 628
 629         BPY_copy_scriptlink(&camn->scriptlink);
 630
 631         return camn;
 632 }
 633
 634
 635
 636 void make_local_camera(Camera *cam)
 637 {
 638         Object *ob;
 639         Camera *camn;
 640         int local=0, lib=0;
 641
 642         /* - only lib users: do nothing
 643             * - only local users: set flag
 644             * - mixed: make copy
 645             */
 646
 647         if(cam->id.lib==0) return;
 648         if(cam->id.us==1) {
 649                 cam->id.lib= 0;
 650                 cam->id.flag= LIB_LOCAL;
 651                 new_id(0, (ID *)cam, 0);
 652                 return;
 653         }
 654
 655         ob= G.main->object.first;
 656         while(ob) {
 657                 if(ob->data==cam) {
 658                         if(ob->id.lib) lib= 1;
 659                         else local= 1;
 660                 }
 661                 ob= ob->id.next;
 662         }
 663
 664         if(local && lib==0) {
 665                 cam->id.lib= 0;
 666                 cam->id.flag= LIB_LOCAL;
 667                 new_id(0, (ID *)cam, 0);
 668         }
 669         else if(local && lib) {
 670                 camn= copy_camera(cam);
 671                 camn->id.us= 0;
 672
 673                 ob= G.main->object.first;
 674                 while(ob) {
 675                         if(ob->data==cam) {
 676
 677                                 if(ob->id.lib==0) {
 678                                         ob->data= camn;
 679                                         camn->id.us++;
 680                                         cam->id.us--;
 681                                 }
 682                         }
 683                         ob= ob->id.next;
 684                 }
 685         }
 686 }
 687
 688 /* get the camera's dof value, takes the dof object into account */
 689 float dof_camera(Object *ob)
 690 {
 691         Camera *cam = (Camera *)ob->data;
 692         if (ob->type != OB_CAMERA)
 693                 return 0.0;
 694         if (cam->dof_ob) {
 695                 /* too simple, better to return the distance on the view axis only
 696                  * return VecLenf(ob->obmat[3], cam->dof_ob->obmat[3]); */
 697
 698                 float mat[4][4];
 699                 Mat4Invert(ob->imat, ob->obmat);
 700                 Mat4MulMat4(mat, cam->dof_ob->obmat, ob->imat);
 701                 return fabs(mat[3][2]);
 702         }
 703         return cam->YF_dofdist;
 704 }
 705
 706 void *add_lamp(char *name)
 707 {
 708         Lamp *la;
 709
 710         la=  alloc_libblock(&G.main->lamp, ID_LA, name);
 711
 712         la->r= la->g= la->b= la->k= 1.0;
 713         la->haint= la->energy= 1.0;
 714         la->dist= 20.0;
 715         la->spotsize= 45.0;
 716         la->spotblend= 0.15;
 717         la->att2= 1.0;
 718         la->mode= LA_SHAD_BUF;
 719         la->bufsize= 512;
 720         la->clipsta= 0.5;
 721         la->clipend= 40.0;
 722         la->shadspotsize= 45.0;
 723         la->samp= 3;
 724         la->bias= 1.0;
 725         la->soft= 3.0;
 726         la->ray_samp= la->ray_sampy= la->ray_sampz= 1;
 727         la->area_size=la->area_sizey=la->area_sizez= 1.0;
 728         la->buffers= 1;
 729         la->buftype= LA_SHADBUF_HALFWAY;
 730         la->ray_samp_method = LA_SAMP_HALTON;
 731         la->adapt_thresh = 0.001;
 732         la->preview=NULL;
 733         la->falloff_type = LA_FALLOFF_INVLINEAR;
 734         la->curfalloff = curvemapping_add(1, 0.0f, 1.0f, 1.0f, 0.0f);
 735         la->sun_effect_type = 0;
 736         la->horizon_brightness = 1.0;
 737         la->spread = 1.0;
 738         la->sun_brightness = 1.0;
 739         la->sun_size = 1.0;
 740         la->backscattered_light = 1.0;
 741         la->atm_turbidity = 2.0;
 742         la->atm_inscattering_factor = 1.0;
 743         la->atm_extinction_factor = 1.0;
 744         la->atm_distance_factor = 1.0;
 745         la->sun_intensity = 1.0;
 746         curvemapping_initialize(la->curfalloff);
 747         return la;
 748 }
 749
 750 Lamp *copy_lamp(Lamp *la)
 751 {
 752         Lamp *lan;
 753         int a;
 754
 755         lan= copy_libblock(la);
 756
 757         for(a=0; a<MAX_MTEX; a++) {
 758                 if(lan->mtex[a]) {
 759                         lan->mtex[a]= MEM_mallocN(sizeof(MTex), "copylamptex");
 760                         memcpy(lan->mtex[a], la->mtex[a], sizeof(MTex));
 761                         id_us_plus((ID *)lan->mtex[a]->tex);
 762                 }
 763         }
 764
 765         lan->curfalloff = curvemapping_copy(la->curfalloff);
 766
 767         id_us_plus((ID *)lan->ipo);
 768
 769         if (la->preview) lan->preview = BKE_previewimg_copy(la->preview);
 770
 771         BPY_copy_scriptlink(&la->scriptlink);
 772
 773         return lan;
 774 }
 775
 776 void make_local_lamp(Lamp *la)
 777 {
 778         Object *ob;
 779         Lamp *lan;
 780         int local=0, lib=0;
 781
 782         /* - only lib users: do nothing
 783             * - only local users: set flag
 784             * - mixed: make copy
 785             */
 786
 787         if(la->id.lib==0) return;
 788         if(la->id.us==1) {
 789                 la->id.lib= 0;
 790                 la->id.flag= LIB_LOCAL;
 791                 new_id(0, (ID *)la, 0);
 792                 return;
 793         }
 794
 795         ob= G.main->object.first;
 796         while(ob) {
 797                 if(ob->data==la) {
 798                         if(ob->id.lib) lib= 1;
 799                         else local= 1;
 800                 }
 801                 ob= ob->id.next;
 802         }
 803
 804         if(local && lib==0) {
 805                 la->id.lib= 0;
 806                 la->id.flag= LIB_LOCAL;
 807                 new_id(0, (ID *)la, 0);
 808         }
 809         else if(local && lib) {
 810                 lan= copy_lamp(la);
 811                 lan->id.us= 0;
 812
 813                 ob= G.main->object.first;
 814                 while(ob) {
 815                         if(ob->data==la) {
 816
 817                                 if(ob->id.lib==0) {
 818                                         ob->data= lan;
 819                                         lan->id.us++;
 820                                         la->id.us--;
 821                                 }
 822                         }
 823                         ob= ob->id.next;
 824                 }
 825         }
 826 }
 827
 828 void free_camera(Camera *ca)
 829 {
 830         BPY_free_scriptlink(&ca->scriptlink);
 831 }
 832
 833 void free_lamp(Lamp *la)
 834 {
 835         MTex *mtex;
 836         int a;
 837
 838         /* scriptlinks */
 839
 840         BPY_free_scriptlink(&la->scriptlink);
 841
 842         for(a=0; a<MAX_MTEX; a++) {
 843                 mtex= la->mtex[a];
 844                 if(mtex && mtex->tex) mtex->tex->id.us--;
 845                 if(mtex) MEM_freeN(mtex);
 846         }
 847         la->ipo= 0;
 848
 849         curvemapping_free(la->curfalloff);
 850
 851         BKE_previewimg_free(&la->preview);
 852         BKE_icon_delete(&la->id);
 853         la->id.icon_id = 0;
 854 }
 855
 856 void *add_wave()
 857 {
 858         return 0;
 859 }
 860
 861
 862 /* *************************************************** */
 863
 864 static void *add_obdata_from_type(int type)
 865 {
 866         switch (type) {
 867         case OB_MESH: G.totmesh++; return add_mesh("Mesh");
 868         case OB_CURVE: G.totcurve++; return add_curve("Curve", OB_CURVE);
 869         case OB_SURF: G.totcurve++; return add_curve("Surf", OB_SURF);
 870         case OB_FONT: return add_curve("Text", OB_FONT);
 871         case OB_MBALL: return add_mball("Meta");
 872         case OB_CAMERA: return add_camera("Camera");
 873         case OB_LAMP: G.totlamp++; return add_lamp("Lamp");
 874         case OB_LATTICE: return add_lattice("Lattice");
 875         case OB_WAVE: return add_wave();
 876         case OB_ARMATURE: return add_armature("Armature");
 877         case OB_EMPTY: return NULL;
 878         default:
 879                 printf("add_obdata_from_type: Internal error, bad type: %d\n", type);
 880                 return NULL;
 881         }
 882 }
 883
 884 static char *get_obdata_defname(int type)
 885 {
 886         switch (type) {
 887         case OB_MESH: return "Mesh";
 888         case OB_CURVE: return "Curve";
 889         case OB_SURF: return "Surf";
 890         case OB_FONT: return "Font";
 891         case OB_MBALL: return "Mball";
 892         case OB_CAMERA: return "Camera";
 893         case OB_LAMP: return "Lamp";
 894         case OB_LATTICE: return "Lattice";
 895         case OB_WAVE: return "Wave";
 896         case OB_ARMATURE: return "Armature";
 897         case OB_EMPTY: return "Empty";
 898         default:
 899                 printf("get_obdata_defname: Internal error, bad type: %d\n", type);
 900                 return "Empty";
 901         }
 902 }
 903
 904 /* more general add: creates minimum required data, but without vertices etc. */
 905 Object *add_only_object(int type, char *name)
 906 {
 907         Object *ob;
 908
 909         ob= alloc_libblock(&G.main->object, ID_OB, name);
 910         G.totobj++;
 911
 912         /* default object vars */
 913         ob->type= type;
 914         /* ob->transflag= OB_QUAT; */
 915
 916 #if 0 /* not used yet */
 917         QuatOne(ob->quat);
 918         QuatOne(ob->dquat);
 919 #endif
 920
 921         ob->col[0]= ob->col[1]= ob->col[2]= 0.0;
 922         ob->col[3]= 1.0;
 923
 924         ob->loc[0]= ob->loc[1]= ob->loc[2]= 0.0;
 925         ob->rot[0]= ob->rot[1]= ob->rot[2]= 0.0;
 926         ob->size[0]= ob->size[1]= ob->size[2]= 1.0;
 927
 928         Mat4One(ob->constinv);
 929         Mat4One(ob->parentinv);
 930         Mat4One(ob->obmat);
 931         ob->dt= OB_SHADED;
 932         if(U.flag & USER_MAT_ON_OB) ob->colbits= -1;
 933         ob->empty_drawtype= OB_ARROWS;
 934         ob->empty_drawsize= 1.0;
 935
 936         if(type==OB_CAMERA || type==OB_LAMP) {
 937                 ob->trackflag= OB_NEGZ;
 938                 ob->upflag= OB_POSY;
 939         }
 940         else {
 941                 ob->trackflag= OB_POSY;
 942                 ob->upflag= OB_POSZ;
 943         }
 944         ob->ipoflag = OB_OFFS_OB+OB_OFFS_PARENT;
 945         ob->ipowin= ID_OB;      /* the ipowin shown */
 946         ob->dupon= 1; ob->dupoff= 0;
 947         ob->dupsta= 1; ob->dupend= 100;
 948         ob->dupfacesca = 1.0;
 949
 950         /* Game engine defaults*/
 951         ob->mass= ob->inertia= 1.0f;
 952         ob->formfactor= 0.4f;
 953         ob->damping= 0.04f;
 954         ob->rdamping= 0.1f;
 955         ob->anisotropicFriction[0] = 1.0f;
 956         ob->anisotropicFriction[1] = 1.0f;
 957         ob->anisotropicFriction[2] = 1.0f;
 958         ob->gameflag= OB_PROP;
 959
 960         /* NT fluid sim defaults */
 961         ob->fluidsimFlag = 0;
 962         ob->fluidsimSettings = NULL;
 963
 964         return ob;
 965 }
 966
 967 /* general add: to G.scene, with layer from area and default name */
 968 /* creates minimum required data, but without vertices etc. */
 969 Object *add_object(int type)
 970 {
 971         Object *ob;
 972         Base *base;
 973         char name[32];
 974
 975         strcpy(name, get_obdata_defname(type));
 976         ob = add_only_object(type, name);
 977
 978         ob->data= add_obdata_from_type(type);
 979
 980         ob->lay= G.scene->lay;
 981
 982         base= scene_add_base(G.scene, ob);
 983         scene_select_base(G.scene, base);
 984         ob->recalc |= OB_RECALC;
 985
 986         return ob;
 987 }
 988
 989 void base_init_from_view3d(Base *base, View3D *v3d)
 990 {
 991         Object *ob= base->object;
 992
 993         if (!v3d) {
 994                 /* no 3d view, this wont happen often */
 995                 base->lay = 1;
 996                 VECCOPY(ob->loc, G.scene->cursor);
 997
 998                 /* return now because v3d->viewquat isnt available */
 999                 return;
1000         } else if (v3d->localview) {
1001                 base->lay= ob->lay= v3d->layact + v3d->lay;
1002                 VECCOPY(ob->loc, v3d->cursor);
1003         } else {
1004                 base->lay= ob->lay= v3d->layact;
1005                 VECCOPY(ob->loc, G.scene->cursor);
1006         }
1007
1008         if (U.flag & USER_ADD_VIEWALIGNED) {
1009                 v3d->viewquat[0]= -v3d->viewquat[0];
1010
1011                 /* Quats arnt used yet */
1012                 /*if (ob->transflag & OB_QUAT) {
1013                         QUATCOPY(ob->quat, v3d->viewquat);
1014                 } else {*/
1015                         QuatToEul(v3d->viewquat, ob->rot);
1016                 /*}*/
1017                 v3d->viewquat[0]= -v3d->viewquat[0];
1018         }
1019 }
1020
1021 SoftBody *copy_softbody(SoftBody *sb)
1022 {
1023         SoftBody *sbn;
1024
1025         if (sb==NULL) return(NULL);
1026
1027         sbn= MEM_dupallocN(sb);
1028         sbn->totspring= sbn->totpoint= 0;
1029         sbn->bpoint= NULL;
1030         sbn->bspring= NULL;
1031
1032         sbn->keys= NULL;
1033         sbn->totkey= sbn->totpointkey= 0;
1034
1035         sbn->scratch= NULL;
1036
1037         sbn->pointcache= BKE_ptcache_copy(sb->pointcache);
1038
1039         return sbn;
1040 }
1041
1042 ParticleSystem *copy_particlesystem(ParticleSystem *psys)
1043 {
1044         ParticleSystem *psysn;
1045         ParticleData *pa;
1046         int a;
1047
1048         psysn= MEM_dupallocN(psys);
1049         psysn->particles= MEM_dupallocN(psys->particles);
1050         psysn->child= MEM_dupallocN(psys->child);
1051
1052         for(a=0, pa=psysn->particles; a<psysn->totpart; a++, pa++) {
1053                 if(pa->hair)
1054                         pa->hair= MEM_dupallocN(pa->hair);
1055                 if(pa->keys)
1056                         pa->keys= MEM_dupallocN(pa->keys);
1057         }
1058
1059         if(psys->soft) {
1060                 psysn->soft= copy_softbody(psys->soft);
1061                 psysn->soft->particles = psysn;
1062         }
1063
1064         psysn->pathcache= NULL;
1065         psysn->childcache= NULL;
1066         psysn->edit= NULL;
1067         psysn->effectors.first= psysn->effectors.last= 0;
1068
1069         psysn->pathcachebufs.first = psysn->pathcachebufs.last = NULL;
1070         psysn->childcachebufs.first = psysn->childcachebufs.last = NULL;
1071         psysn->reactevents.first = psysn->reactevents.last = NULL;
1072         psysn->renderdata = NULL;
1073
1074         psysn->pointcache= BKE_ptcache_copy(psys->pointcache);
1075
1076         id_us_plus((ID *)psysn->part);
1077
1078         return psysn;
1079 }
1080
1081 void copy_object_particlesystems(Object *obn, Object *ob)
1082 {
1083         ParticleSystemModifierData *psmd;
1084         ParticleSystem *psys, *npsys;
1085         ModifierData *md;
1086
1087         obn->particlesystem.first= obn->particlesystem.last= NULL;
1088         for(psys=ob->particlesystem.first; psys; psys=psys->next) {
1089                 npsys= copy_particlesystem(psys);
1090
1091                 BLI_addtail(&obn->particlesystem, npsys);
1092
1093                 /* need to update particle modifiers too */
1094                 for(md=obn->modifiers.first; md; md=md->next) {
1095                         if(md->type==eModifierType_ParticleSystem) {
1096                                 psmd= (ParticleSystemModifierData*)md;
1097                                 if(psmd->psys==psys)
1098                                         psmd->psys= npsys;
1099                         }
1100                 }
1101         }
1102 }
1103
1104 void copy_object_softbody(Object *obn, Object *ob)
1105 {
1106         if(ob->soft)
1107                 obn->soft= copy_softbody(ob->soft);
1108 }
1109
1110 static void copy_object_pose(Object *obn, Object *ob)
1111 {
1112         bPoseChannel *chan;
1113
1114         /* note: need to clear obn->pose pointer first, so that copy_pose works (otherwise there's a crash) */
1115         obn->pose= NULL;
1116         copy_pose(&obn->pose, ob->pose, 1);     /* 1 = copy constraints */
1117
1118         for (chan = obn->pose->chanbase.first; chan; chan=chan->next){
1119                 bConstraint *con;
1120
1121                 chan->flag &= ~(POSE_LOC|POSE_ROT|POSE_SIZE);
1122
1123                 for (con= chan->constraints.first; con; con= con->next) {
1124                         bConstraintTypeInfo *cti= constraint_get_typeinfo(con);
1125                         ListBase targets = {NULL, NULL};
1126                         bConstraintTarget *ct;
1127
1128                         if(con->ipo) {
1129                                 IpoCurve *icu;
1130                                 for(icu= con->ipo->curve.first; icu; icu= icu->next) {
1131                                         if(icu->driver && icu->driver->ob==ob)
1132                                                 icu->driver->ob= obn;
1133                                 }
1134                         }
1135
1136                         if (cti && cti->get_constraint_targets) {
1137                                 cti->get_constraint_targets(con, &targets);
1138
1139                                 for (ct= targets.first; ct; ct= ct->next) {
1140                                         if (ct->tar == ob)
1141                                                 ct->tar = obn;
1142                                 }
1143
1144                                 if (cti->flush_constraint_targets)
1145                                         cti->flush_constraint_targets(con, &targets, 0);
1146                         }
1147                 }
1148         }
1149 }
1150
1151 Object *copy_object(Object *ob)
1152 {
1153         Object *obn;
1154         ModifierData *md;
1155         int a;
1156
1157         obn= copy_libblock(ob);
1158
1159         if(ob->totcol) {
1160                 obn->mat= MEM_dupallocN(ob->mat);
1161         }
1162
1163         if(ob->bb) obn->bb= MEM_dupallocN(ob->bb);
1164         obn->path= NULL;
1165         obn->flag &= ~OB_FROMGROUP;
1166
1167         obn->modifiers.first = obn->modifiers.last= NULL;
1168
1169         for (md=ob->modifiers.first; md; md=md->next) {
1170                 ModifierData *nmd = modifier_new(md->type);
1171                 modifier_copyData(md, nmd);
1172                 BLI_addtail(&obn->modifiers, nmd);
1173         }
1174
1175         BPY_copy_scriptlink(&ob->scriptlink);
1176
1177         copy_properties(&obn->prop, &ob->prop);
1178         copy_sensors(&obn->sensors, &ob->sensors);
1179         copy_controllers(&obn->controllers, &ob->controllers);
1180         copy_actuators(&obn->actuators, &ob->actuators);
1181
1182         if(ob->pose) {
1183                 copy_object_pose(obn, ob);
1184                 /* backwards compat... non-armatures can get poses in older files? */
1185                 if(ob->type==OB_ARMATURE)
1186                         armature_rebuild_pose(obn, obn->data);
1187         }
1188         copy_defgroups(&obn->defbase, &ob->defbase);
1189         copy_nlastrips(&obn->nlastrips, &ob->nlastrips);
1190         copy_constraints (&obn->constraints, &ob->constraints);
1191
1192         clone_constraint_channels (&obn->constraintChannels, &ob->constraintChannels);
1193
1194         /* increase user numbers */
1195         id_us_plus((ID *)obn->data);
1196         id_us_plus((ID *)obn->ipo);
1197         id_us_plus((ID *)obn->action);
1198         id_us_plus((ID *)obn->dup_group);
1199
1200         for(a=0; a<obn->totcol; a++) id_us_plus((ID *)obn->mat[a]);
1201
1202         obn->disp.first= obn->disp.last= NULL;
1203
1204         if(ob->pd){
1205                 obn->pd= MEM_dupallocN(ob->pd);
1206                 if(obn->pd->tex)
1207                         id_us_plus(&(obn->pd->tex->id));
1208         }
1209         obn->soft= copy_softbody(ob->soft);
1210
1211         /* NT copy fluid sim setting memory */
1212         if(obn->fluidsimSettings) {
1213                 obn->fluidsimSettings = fluidsimSettingsCopy(ob->fluidsimSettings);
1214                 /* copying might fail... */
1215                 if(obn->fluidsimSettings) {
1216                         obn->fluidsimSettings->orgMesh = (Mesh *)obn->data;
1217                 }
1218         }
1219
1220         copy_object_particlesystems(obn, ob);
1221
1222         obn->derivedDeform = NULL;
1223         obn->derivedFinal = NULL;
1224
1225 #ifdef WITH_VERSE
1226         obn->vnode = NULL;
1227 #endif
1228
1229
1230         return obn;
1231 }
1232
1233 void expand_local_object(Object *ob)
1234 {
1235         bActionStrip *strip;
1236         int a;
1237
1238         id_lib_extern((ID *)ob->action);
1239         id_lib_extern((ID *)ob->ipo);
1240         id_lib_extern((ID *)ob->data);
1241         id_lib_extern((ID *)ob->dup_group);
1242
1243         for(a=0; a<ob->totcol; a++) {
1244                 id_lib_extern((ID *)ob->mat[a]);
1245         }
1246         for (strip=ob->nlastrips.first; strip; strip=strip->next) {
1247                 id_lib_extern((ID *)strip->act);
1248         }
1249
1250 }
1251
1252 void make_local_object(Object *ob)
1253 {
1254         Object *obn;
1255         Scene *sce;
1256         Base *base;
1257         int local=0, lib=0;
1258
1259         /* - only lib users: do nothing
1260             * - only local users: set flag
1261             * - mixed: make copy
1262             */
1263
1264         if(ob->id.lib==NULL) return;
1265
1266         ob->proxy= ob->proxy_from= NULL;
1267
1268         if(ob->id.us==1) {
1269                 ob->id.lib= NULL;
1270                 ob->id.flag= LIB_LOCAL;
1271                 new_id(0, (ID *)ob, 0);
1272
1273         }
1274         else {
1275                 sce= G.main->scene.first;
1276                 while(sce) {
1277                         base= sce->base.first;
1278                         while(base) {
1279                                 if(base->object==ob) {
1280                                         if(sce->id.lib) lib++;
1281                                         else local++;
1282                                         break;
1283                                 }
1284                                 base= base->next;
1285                         }
1286                         sce= sce->id.next;
1287                 }
1288
1289                 if(local && lib==0) {
1290                         ob->id.lib= 0;
1291                         ob->id.flag= LIB_LOCAL;
1292                         new_id(0, (ID *)ob, 0);
1293                 }
1294                 else if(local && lib) {
1295                         obn= copy_object(ob);
1296                         obn->id.us= 0;
1297
1298                         sce= G.main->scene.first;
1299                         while(sce) {
1300                                 if(sce->id.lib==0) {
1301                                         base= sce->base.first;
1302                                         while(base) {
1303                                                 if(base->object==ob) {
1304                                                         base->object= obn;
1305                                                         obn->id.us++;
1306                                                         ob->id.us--;
1307                                                 }
1308                                                 base= base->next;
1309                                         }
1310                                 }
1311                                 sce= sce->id.next;
1312                         }
1313                 }
1314         }
1315
1316         expand_local_object(ob);
1317 }
1318
1319 /* *************** PROXY **************** */
1320
1321 /* when you make proxy, ensure the exposed layers are extern */
1322 void armature_set_id_extern(Object *ob)
1323 {
1324         bArmature *arm= ob->data;
1325         bPoseChannel *pchan;
1326         int lay= arm->layer_protected;
1327
1328         for (pchan = ob->pose->chanbase.first; pchan; pchan=pchan->next) {
1329                 if(!(pchan->bone->layer & lay))
1330                         id_lib_extern((ID *)pchan->custom);
1331         }
1332
1333 }
1334
1335 /* proxy rule: lib_object->proxy_from == the one we borrow from, set temporally while object_update */
1336 /*             local_object->proxy == pointer to library object, saved in files and read */
1337 /*             local_object->proxy_group == pointer to group dupli-object, saved in files and read */
1338
1339 void object_make_proxy(Object *ob, Object *target, Object *gob)
1340 {
1341         /* paranoia checks */
1342         if(ob->id.lib || target->id.lib==NULL) {
1343                 printf("cannot make proxy\n");
1344                 return;
1345         }
1346
1347         ob->proxy= target;
1348         ob->proxy_group= gob;
1349         id_lib_extern(&target->id);
1350
1351         ob->recalc= target->recalc= OB_RECALC;
1352
1353         /* copy transform */
1354         if(gob) {
1355                 VECCOPY(ob->loc, gob->loc);
1356                 VECCOPY(ob->rot, gob->rot);
1357                 VECCOPY(ob->size, gob->size);
1358
1359                 group_tag_recalc(gob->dup_group);
1360         }
1361         else {
1362                 VECCOPY(ob->loc, target->loc);
1363                 VECCOPY(ob->rot, target->rot);
1364                 VECCOPY(ob->size, target->size);
1365         }
1366
1367         ob->parent= target->parent;     /* libdata */
1368         Mat4CpyMat4(ob->parentinv, target->parentinv);
1369         ob->ipo= target->ipo;           /* libdata */
1370
1371         /* skip constraints, constraintchannels, nla? */
1372
1373         /* set object type and link to data */
1374         ob->type= target->type;
1375         ob->data= target->data;
1376         id_us_plus((ID *)ob->data);             /* ensures lib data becomes LIB_EXTERN */
1377
1378         /* copy material and index information */
1379         ob->actcol= ob->totcol= 0;
1380         if(ob->mat) MEM_freeN(ob->mat);
1381         ob->mat = NULL;
1382         if ((target->totcol) && (target->mat) && OB_SUPPORT_MATERIAL(ob)) {
1383                 int i;
1384                 ob->colbits = target->colbits;
1385
1386                 ob->actcol= target->actcol;
1387                 ob->totcol= target->totcol;
1388
1389                 ob->mat = MEM_dupallocN(target->mat);
1390                 for(i=0; i<target->totcol; i++) {
1391                         /* dont need to run test_object_materials since we know this object is new and not used elsewhere */
1392                         id_us_plus(ob->mat[i]);
1393                 }
1394         }
1395
1396         /* type conversions */
1397         if(target->type == OB_ARMATURE) {
1398                 copy_object_pose(ob, target);   /* data copy, object pointers in constraints */
1399                 rest_pose(ob->pose);                    /* clear all transforms in channels */
1400                 armature_rebuild_pose(ob, ob->data);    /* set all internal links */
1401
1402                 armature_set_id_extern(ob);
1403         }
1404 }
1405
1406
1407 /* *************** CALC ****************** */
1408
1409 /* there is also a timing calculation in drawobject() */
1410
1411 float bluroffs= 0.0f, fieldoffs= 0.0f;
1412 int no_speed_curve= 0;
1413
1414 /* ugly calls from render */
1415 void set_mblur_offs(float blur)
1416 {
1417         bluroffs= blur;
1418 }
1419
1420 void set_field_offs(float field)
1421 {
1422         fieldoffs= field;
1423 }
1424
1425 void disable_speed_curve(int val)
1426 {
1427         no_speed_curve= val;
1428 }
1429
1430 /* ob can be NULL */
1431 float bsystem_time(Object *ob, float cfra, float ofs)
1432 {
1433         /* returns float ( see frame_to_float in ipo.c) */
1434
1435         /* bluroffs and fieldoffs are ugly globals that are set by render */
1436         cfra+= bluroffs+fieldoffs;
1437
1438         /* global time */
1439         cfra*= G.scene->r.framelen;
1440
1441         if (ob) {
1442                 if (no_speed_curve==0 && ob->ipo)
1443                         cfra= calc_ipo_time(ob->ipo, cfra);
1444
1445                 /* ofset frames */
1446                 if ((ob->ipoflag & OB_OFFS_PARENT) && (ob->partype & PARSLOW)==0)
1447                         cfra-= give_timeoffset(ob);
1448         }
1449
1450         cfra-= ofs;
1451
1452         return cfra;
1453 }
1454
1455 void object_to_mat3(Object *ob, float mat[][3]) /* no parent */
1456 {
1457         float smat[3][3], vec[3];
1458         float rmat[3][3];
1459         /*float q1[4];*/
1460
1461         /* size */
1462         if(ob->ipo) {
1463                 vec[0]= ob->size[0]+ob->dsize[0];
1464                 vec[1]= ob->size[1]+ob->dsize[1];
1465                 vec[2]= ob->size[2]+ob->dsize[2];
1466                 SizeToMat3(vec, smat);
1467         }
1468         else {
1469                 SizeToMat3(ob->size, smat);
1470         }
1471
1472         /* rot */
1473         /* Quats arnt used yet */
1474         /*if(ob->transflag & OB_QUAT) {
1475                 if(ob->ipo) {
1476                         QuatMul(q1, ob->quat, ob->dquat);
1477                         QuatToMat3(q1, rmat);
1478                 }
1479                 else {
1480                         QuatToMat3(ob->quat, rmat);
1481                 }
1482         }
1483         else {*/
1484                 if(ob->ipo) {
1485                         vec[0]= ob->rot[0]+ob->drot[0];
1486                         vec[1]= ob->rot[1]+ob->drot[1];
1487                         vec[2]= ob->rot[2]+ob->drot[2];
1488                         EulToMat3(vec, rmat);
1489                 }
1490                 else {
1491                         EulToMat3(ob->rot, rmat);
1492                 }
1493         /*}*/
1494         Mat3MulMat3(mat, rmat, smat);
1495 }
1496
1497 void object_to_mat4(Object *ob, float mat[][4])
1498 {
1499         float tmat[3][3];
1500
1501         object_to_mat3(ob, tmat);
1502
1503         Mat4CpyMat3(mat, tmat);
1504
1505         VECCOPY(mat[3], ob->loc);
1506         if(ob->ipo) {
1507                 mat[3][0]+= ob->dloc[0];
1508                 mat[3][1]+= ob->dloc[1];
1509                 mat[3][2]+= ob->dloc[2];
1510         }
1511 }
1512
1513 int enable_cu_speed= 1;
1514
1515 static void ob_parcurve(Object *ob, Object *par, float mat[][4])
1516 {
1517         Curve *cu;
1518         float q[4], vec[4], dir[3], quat[4], x1, ctime;
1519         float timeoffs = 0.0, sf_orig = 0.0;
1520
1521         Mat4One(mat);
1522
1523         cu= par->data;
1524         if(cu->path==NULL || cu->path->data==NULL) /* only happens on reload file, but violates depsgraph still... fix! */
1525                 makeDispListCurveTypes(par, 0);
1526         if(cu->path==NULL) return;
1527
1528         /* exception, timeoffset is regarded as distance offset */
1529         if(cu->flag & CU_OFFS_PATHDIST) {
1530                 timeoffs = give_timeoffset(ob);
1531                 SWAP(float, sf_orig, ob->sf);
1532         }
1533
1534         /* catch exceptions: feature for nla stride editing */
1535         if(ob->ipoflag & OB_DISABLE_PATH) {
1536                 ctime= 0.0f;
1537         }
1538         /* catch exceptions: curve paths used as a duplicator */
1539         else if(enable_cu_speed) {
1540                 ctime= bsystem_time(ob, (float)G.scene->r.cfra, 0.0);
1541
1542                 if(calc_ipo_spec(cu->ipo, CU_SPEED, &ctime)==0) {
1543                         ctime /= cu->pathlen;
1544                         CLAMP(ctime, 0.0, 1.0);
1545                 }
1546         }
1547         else {
1548                 ctime= G.scene->r.cfra - give_timeoffset(ob);
1549                 ctime /= cu->pathlen;
1550
1551                 CLAMP(ctime, 0.0, 1.0);
1552         }
1553
1554         /* time calculus is correct, now apply distance offset */
1555         if(cu->flag & CU_OFFS_PATHDIST) {
1556                 ctime += timeoffs/cu->path->totdist;
1557
1558                 /* restore */
1559                 SWAP(float, sf_orig, ob->sf);
1560         }
1561
1562
1563         /* vec: 4 items! */
1564         if( where_on_path(par, ctime, vec, dir) ) {
1565
1566                 if(cu->flag & CU_FOLLOW) {
1567                         vectoquat(dir, ob->trackflag, ob->upflag, quat);
1568
1569                         /* the tilt */
1570                         Normalize(dir);
1571                         q[0]= (float)cos(0.5*vec[3]);
1572                         x1= (float)sin(0.5*vec[3]);
1573                         q[1]= -x1*dir[0];
1574                         q[2]= -x1*dir[1];
1575                         q[3]= -x1*dir[2];
1576                         QuatMul(quat, q, quat);
1577
1578                         QuatToMat4(quat, mat);
1579                 }
1580
1581                 VECCOPY(mat[3], vec);
1582
1583         }
1584 }
1585
1586 static void ob_parbone(Object *ob, Object *par, float mat[][4])
1587 {
1588         bPoseChannel *pchan;
1589         bArmature *arm;
1590         float vec[3];
1591
1592         arm=get_armature(par);
1593         if (!arm) {
1594                 Mat4One(mat);
1595                 return;
1596         }
1597
1598         /* Make sure the bone is still valid */
1599         pchan= get_pose_channel(par->pose, ob->parsubstr);
1600         if (!pchan){
1601                 printf ("Object %s with Bone parent: bone %s doesn't exist\n", ob->id.name+2, ob->parsubstr);
1602                 Mat4One(mat);
1603                 return;
1604         }
1605
1606         /* get bone transform */
1607         Mat4CpyMat4(mat, pchan->pose_mat);
1608
1609         /* but for backwards compatibility, the child has to move to the tail */
1610         VECCOPY(vec, mat[1]);
1611         VecMulf(vec, pchan->bone->length);
1612         VecAddf(mat[3], mat[3], vec);
1613 }
1614
1615 static void give_parvert(Object *par, int nr, float *vec)
1616 {
1617         int a, count;
1618
1619         vec[0]=vec[1]=vec[2]= 0.0f;
1620
1621         if(par->type==OB_MESH) {
1622                 if(G.obedit && (par->data==G.obedit->data)) {
1623                         EditMesh *em = G.editMesh;
1624                         EditVert *eve;
1625
1626                         for(eve= em->verts.first; eve; eve= eve->next) {
1627                                 if(eve->keyindex==nr) {
1628                                         memcpy(vec, eve->co, sizeof(float)*3);
1629                                         break;
1630                                 }
1631                         }
1632                 }
1633                 else {
1634                         DerivedMesh *dm = par->derivedFinal;
1635
1636                         if(dm) {
1637                                 int i, count = 0, numVerts = dm->getNumVerts(dm);
1638                                 int *index = (int *)dm->getVertDataArray(dm, CD_ORIGINDEX);
1639                                 float co[3];
1640
1641                                 /* get the average of all verts with (original index == nr) */
1642                                 for(i = 0; i < numVerts; ++i, ++index) {
1643                                         if(*index == nr) {
1644                                                 dm->getVertCo(dm, i, co);
1645                                                 VecAddf(vec, vec, co);
1646                                                 count++;
1647                                         }
1648                                 }
1649
1650                                 if (count==0) {
1651                                         /* keep as 0,0,0 */
1652                                 } else if(count > 0) {
1653                                         VecMulf(vec, 1.0f / count);
1654                                 } else {
1655                                         /* use first index if its out of range */
1656                                         dm->getVertCo(dm, 0, vec);
1657                                 }
1658                         }
1659                 }
1660         }
1661         else if ELEM(par->type, OB_CURVE, OB_SURF) {
1662                 Nurb *nu;
1663                 Curve *cu;
1664                 BPoint *bp;
1665                 BezTriple *bezt;
1666                 int found= 0;
1667
1668                 cu= par->data;
1669                 nu= cu->nurb.first;
1670                 if(par==G.obedit) nu= editNurb.first;
1671
1672                 count= 0;
1673                 while(nu && !found) {
1674                         if((nu->type & 7)==CU_BEZIER) {
1675                                 bezt= nu->bezt;
1676                                 a= nu->pntsu;
1677                                 while(a--) {
1678                                         if(count==nr) {
1679                                                 found= 1;
1680                                                 VECCOPY(vec, bezt->vec[1]);
1681                                                 break;
1682                                         }
1683                                         count++;
1684                                         bezt++;
1685                                 }
1686                         }
1687                         else {
1688                                 bp= nu->bp;
1689                                 a= nu->pntsu*nu->pntsv;
1690                                 while(a--) {
1691                                         if(count==nr) {
1692                                                 found= 1;
1693                                                 memcpy(vec, bp->vec, sizeof(float)*3);
1694                                                 break;
1695                                         }
1696                                         count++;
1697                                         bp++;
1698                                 }
1699                         }
1700                         nu= nu->next;
1701                 }
1702
1703         }
1704         else if(par->type==OB_LATTICE) {
1705                 Lattice *latt= par->data;
1706                 BPoint *bp;
1707                 DispList *dl = find_displist(&par->disp, DL_VERTS);
1708                 float *co = dl?dl->verts:NULL;
1709
1710                 if(par==G.obedit) latt= editLatt;
1711
1712                 a= latt->pntsu*latt->pntsv*latt->pntsw;
1713                 count= 0;
1714                 bp= latt->def;
1715                 while(a--) {
1716                         if(count==nr) {
1717                                 if(co)
1718                                         memcpy(vec, co, 3*sizeof(float));
1719                                 else
1720                                         memcpy(vec, bp->vec, 3*sizeof(float));
1721                                 break;
1722                         }
1723                         count++;
1724                         if(co) co+= 3;
1725                         else bp++;
1726                 }
1727         }
1728 }
1729
1730 static void ob_parvert3(Object *ob, Object *par, float mat[][4])
1731 {
1732         float cmat[3][3], v1[3], v2[3], v3[3], q[4];
1733
1734         /* in local ob space */
1735         Mat4One(mat);
1736
1737         if ELEM4(par->type, OB_MESH, OB_SURF, OB_CURVE, OB_LATTICE) {
1738
1739                 give_parvert(par, ob->par1, v1);
1740                 give_parvert(par, ob->par2, v2);
1741                 give_parvert(par, ob->par3, v3);
1742
1743                 triatoquat(v1, v2, v3, q);
1744                 QuatToMat3(q, cmat);
1745                 Mat4CpyMat3(mat, cmat);
1746
1747                 if(ob->type==OB_CURVE) {
1748                         VECCOPY(mat[3], v1);
1749                 }
1750                 else {
1751                         VecAddf(mat[3], v1, v2);
1752                         VecAddf(mat[3], mat[3], v3);
1753                         VecMulf(mat[3], 0.3333333f);
1754                 }
1755         }
1756 }
1757
1758 static int no_parent_ipo=0;
1759 void set_no_parent_ipo(int val)
1760 {
1761         no_parent_ipo= val;
1762 }
1763
1764 static int during_script_flag=0;
1765 void disable_where_script(short on)
1766 {
1767         during_script_flag= on;
1768 }
1769
1770 int during_script(void) {
1771         return during_script_flag;
1772 }
1773
1774 static int during_scriptlink_flag=0;
1775 void disable_where_scriptlink(short on)
1776 {
1777         during_scriptlink_flag= on;
1778 }
1779
1780 int during_scriptlink(void) {
1781         return during_scriptlink_flag;
1782 }
1783
1784 void where_is_object_time(Object *ob, float ctime)
1785 {
1786         float *fp1, *fp2, slowmat[4][4] = MAT4_UNITY;
1787         float stime, fac1, fac2, vec[3];
1788         int a;
1789         int pop;
1790
1791         /* new version: correct parent+vertexparent and track+parent */
1792         /* this one only calculates direct attached parent and track */
1793         /* is faster, but should keep track of timeoffs */
1794
1795         if(ob==NULL) return;
1796
1797         /* this is needed to be able to grab objects with ipos, otherwise it always freezes them */
1798         stime= bsystem_time(ob, ctime, 0.0);
1799         if(stime != ob->ctime) {
1800
1801                 ob->ctime= stime;
1802
1803                 if(ob->ipo) {
1804                         calc_ipo(ob->ipo, stime);
1805                         execute_ipo((ID *)ob, ob->ipo);
1806                 }
1807                 else
1808                         do_all_object_actions(ob);
1809
1810                 /* do constraint ipos ..., note it needs stime (0 = all ipos) */
1811                 do_constraint_channels(&ob->constraints, &ob->constraintChannels, stime, 0);
1812         }
1813         else {
1814                 /* but, the drivers have to be done */
1815                 if(ob->ipo) do_ob_ipodrivers(ob, ob->ipo, stime);
1816                 /* do constraint ipos ..., note it needs stime (1 = only drivers ipos) */
1817                 do_constraint_channels(&ob->constraints, &ob->constraintChannels, stime, 1);
1818         }
1819
1820         if(ob->parent) {
1821                 Object *par= ob->parent;
1822
1823                 if(ob->ipoflag & OB_OFFS_PARENT) ctime-= give_timeoffset(ob);
1824
1825                 /* hurms, code below conflicts with depgraph... (ton) */
1826                 /* and even worse, it gives bad effects for NLA stride too (try ctime != par->ctime, with MBlur) */
1827                 pop= 0;
1828                 if(no_parent_ipo==0 && stime != par->ctime) {
1829
1830                         // only for ipo systems?
1831                         pushdata(par, sizeof(Object));
1832                         pop= 1;
1833
1834                         if(par->proxy_from);    // was a copied matrix, no where_is! bad...
1835                         else where_is_object_time(par, ctime);
1836                 }
1837
1838                 solve_parenting(ob, par, ob->obmat, slowmat, 0);
1839
1840                 if(pop) {
1841                         poplast(par);
1842                 }
1843
1844                 if(ob->partype & PARSLOW) {
1845                         // include framerate
1846
1847                         fac1= (1.0f/(1.0f+ fabs(give_timeoffset(ob))));
1848                         if(fac1>=1.0) return;
1849                         fac2= 1.0f-fac1;
1850
1851                         fp1= ob->obmat[0];
1852                         fp2= slowmat[0];
1853                         for(a=0; a<16; a++, fp1++, fp2++) {
1854                                 fp1[0]= fac1*fp1[0] + fac2*fp2[0];
1855                         }
1856                 }
1857
1858         }
1859         else {
1860                 object_to_mat4(ob, ob->obmat);
1861         }
1862
1863         /* Handle tracking */
1864         if(ob->track) {
1865                 if( ctime != ob->track->ctime) where_is_object_time(ob->track, ctime);
1866                 solve_tracking (ob, ob->track->obmat);
1867
1868         }
1869
1870         /* solve constraints */
1871         if (ob->constraints.first) {
1872                 bConstraintOb *cob;
1873
1874                 cob= constraints_make_evalob(ob, NULL, CONSTRAINT_OBTYPE_OBJECT);
1875
1876                 /* constraints need ctime, not stime. Some call where_is_object_time and bsystem_time */
1877                 solve_constraints (&ob->constraints, cob, ctime);
1878
1879                 constraints_clear_evalob(cob);
1880         }
1881
1882         if(ob->scriptlink.totscript && !during_script()) {
1883                 if (G.f & G_DOSCRIPTLINKS) BPY_do_pyscript((ID *)ob, SCRIPT_REDRAW);
1884         }
1885
1886         /* set negative scale flag in object */
1887         Crossf(vec, ob->obmat[0], ob->obmat[1]);
1888         if( Inpf(vec, ob->obmat[2]) < 0.0 ) ob->transflag |= OB_NEG_SCALE;
1889         else ob->transflag &= ~OB_NEG_SCALE;
1890 }
1891
1892 static void solve_parenting (Object *ob, Object *par, float obmat[][4], float slowmat[][4], int simul)
1893 {
1894         float totmat[4][4];
1895         float tmat[4][4];
1896         float locmat[4][4];
1897         float vec[3];
1898         int ok;
1899
1900         object_to_mat4(ob, locmat);
1901
1902         if(ob->partype & PARSLOW) Mat4CpyMat4(slowmat, obmat);
1903
1904
1905         switch(ob->partype & PARTYPE) {
1906         case PAROBJECT:
1907                 ok= 0;
1908                 if(par->type==OB_CURVE) {
1909                         if( ((Curve *)par->data)->flag & CU_PATH ) {
1910                                 ob_parcurve(ob, par, tmat);
1911                                 ok= 1;
1912                         }
1913                 }
1914
1915                 if(ok) Mat4MulSerie(totmat, par->obmat, tmat,
1916                         NULL, NULL, NULL, NULL, NULL, NULL);
1917                 else Mat4CpyMat4(totmat, par->obmat);
1918
1919                 break;
1920         case PARBONE:
1921                 ob_parbone(ob, par, tmat);
1922                 Mat4MulSerie(totmat, par->obmat, tmat,
1923                         NULL, NULL, NULL, NULL, NULL, NULL);
1924                 break;
1925
1926         case PARVERT1:
1927                 Mat4One(totmat);
1928                 if (simul){
1929                         VECCOPY(totmat[3], par->obmat[3]);
1930                 }
1931                 else{
1932                         give_parvert(par, ob->par1, vec);
1933                         VecMat4MulVecfl(totmat[3], par->obmat, vec);
1934                 }
1935                 break;
1936         case PARVERT3:
1937                 ob_parvert3(ob, par, tmat);
1938
1939                 Mat4MulSerie(totmat, par->obmat, tmat,
1940                         NULL, NULL, NULL, NULL, NULL, NULL);
1941                 break;
1942
1943         case PARSKEL:
1944                 Mat4CpyMat4(totmat, par->obmat);
1945                 break;
1946         }
1947
1948         // total
1949         Mat4MulSerie(tmat, totmat, ob->parentinv,
1950                 NULL, NULL, NULL, NULL, NULL, NULL);
1951         Mat4MulSerie(obmat, tmat, locmat,
1952                 NULL, NULL, NULL, NULL, NULL, NULL);
1953
1954         if (simul) {
1955
1956         }
1957         else{
1958                 // external usable originmat
1959                 Mat3CpyMat4(originmat, tmat);
1960
1961                 // origin, voor help line
1962                 if( (ob->partype & 15)==PARSKEL ) {
1963                         VECCOPY(ob->orig, par->obmat[3]);
1964                 }
1965                 else {
1966                         VECCOPY(ob->orig, totmat[3]);
1967                 }
1968         }
1969
1970 }
1971 void solve_tracking (Object *ob, float targetmat[][4])
1972 {
1973         float quat[4];
1974         float vec[3];
1975         float totmat[3][3];
1976         float tmat[4][4];
1977
1978         VecSubf(vec, ob->obmat[3], targetmat[3]);
1979         vectoquat(vec, ob->trackflag, ob->upflag, quat);
1980         QuatToMat3(quat, totmat);
1981
1982         if(ob->parent && (ob->transflag & OB_POWERTRACK)) {
1983                 /* 'temporal' : clear parent info */
1984                 object_to_mat4(ob, tmat);
1985                 tmat[0][3]= ob->obmat[0][3];
1986                 tmat[1][3]= ob->obmat[1][3];
1987                 tmat[2][3]= ob->obmat[2][3];
1988                 tmat[3][0]= ob->obmat[3][0];
1989                 tmat[3][1]= ob->obmat[3][1];
1990                 tmat[3][2]= ob->obmat[3][2];
1991                 tmat[3][3]= ob->obmat[3][3];
1992         }
1993         else Mat4CpyMat4(tmat, ob->obmat);
1994
1995         Mat4MulMat34(ob->obmat, totmat, tmat);
1996
1997 }
1998
1999 void where_is_object(Object *ob)
2000 {
2001         where_is_object_time(ob, (float)G.scene->r.cfra);
2002 }
2003
2004
2005 void where_is_object_simul(Object *ob)
2006 /* was written for the old game engine (until 2.04) */
2007 /* It seems that this function is only called
2008 for a lamp that is the child of another object */
2009 {
2010         Object *par;
2011         Ipo *ipo;
2012         float *fp1, *fp2;
2013         float slowmat[4][4];
2014         float fac1, fac2;
2015         int a;
2016
2017         /* NO TIMEOFFS */
2018
2019         /* no ipo! (because of dloc and realtime-ipos) */
2020         ipo= ob->ipo;
2021         ob->ipo= NULL;
2022
2023         if(ob->parent) {
2024                 par= ob->parent;
2025
2026                 solve_parenting(ob, par, ob->obmat, slowmat, 1);
2027
2028                 if(ob->partype & PARSLOW) {
2029
2030                         fac1= (float)(1.0/(1.0+ fabs(give_timeoffset(ob))));
2031                         fac2= 1.0f-fac1;
2032                         fp1= ob->obmat[0];
2033                         fp2= slowmat[0];
2034                         for(a=0; a<16; a++, fp1++, fp2++) {
2035                                 fp1[0]= fac1*fp1[0] + fac2*fp2[0];
2036                         }
2037                 }
2038
2039         }
2040         else {
2041                 object_to_mat4(ob, ob->obmat);
2042         }
2043
2044         if(ob->track)
2045                 solve_tracking(ob, ob->track->obmat);
2046
2047         /* solve constraints */
2048         if (ob->constraints.first) {
2049                 bConstraintOb *cob;
2050
2051                 cob= constraints_make_evalob(ob, NULL, CONSTRAINT_OBTYPE_OBJECT);
2052                 solve_constraints (&ob->constraints, cob, G.scene->r.cfra);
2053                 constraints_clear_evalob(cob);
2054         }
2055
2056         /*  WATCH IT!!! */
2057         ob->ipo= ipo;
2058 }
2059
2060 /* for calculation of the inverse parent transform, only used for editor */
2061 void what_does_parent(Object *ob)
2062 {
2063         clear_workob();
2064         Mat4One(workob.obmat);
2065         Mat4One(workob.parentinv);
2066         Mat4One(workob.constinv);
2067         workob.parent= ob->parent;
2068         workob.track= ob->track;
2069
2070         workob.trackflag= ob->trackflag;
2071         workob.upflag= ob->upflag;
2072
2073         workob.partype= ob->partype;
2074         workob.par1= ob->par1;
2075         workob.par2= ob->par2;
2076         workob.par3= ob->par3;
2077
2078         workob.constraints.first = ob->constraints.first;
2079         workob.constraints.last = ob->constraints.last;
2080
2081         strcpy(workob.parsubstr, ob->parsubstr);
2082
2083         where_is_object(&workob);
2084 }
2085
2086 BoundBox *unit_boundbox()
2087 {
2088         BoundBox *bb;
2089         float min[3] = {-1,-1,-1}, max[3] = {-1,-1,-1};
2090
2091         bb= MEM_callocN(sizeof(BoundBox), "bb");
2092         boundbox_set_from_min_max(bb, min, max);
2093
2094         return bb;
2095 }
2096
2097 void boundbox_set_from_min_max(BoundBox *bb, float min[3], float max[3])
2098 {
2099         bb->vec[0][0]=bb->vec[1][0]=bb->vec[2][0]=bb->vec[3][0]= min[0];
2100         bb->vec[4][0]=bb->vec[5][0]=bb->vec[6][0]=bb->vec[7][0]= max[0];
2101
2102         bb->vec[0][1]=bb->vec[1][1]=bb->vec[4][1]=bb->vec[5][1]= min[1];
2103         bb->vec[2][1]=bb->vec[3][1]=bb->vec[6][1]=bb->vec[7][1]= max[1];
2104
2105         bb->vec[0][2]=bb->vec[3][2]=bb->vec[4][2]=bb->vec[7][2]= min[2];
2106         bb->vec[1][2]=bb->vec[2][2]=bb->vec[5][2]=bb->vec[6][2]= max[2];
2107 }
2108
2109 BoundBox *object_get_boundbox(Object *ob)
2110 {
2111         BoundBox *bb= NULL;
2112
2113         if(ob->type==OB_MESH) {
2114                 bb = mesh_get_bb(ob);
2115         }
2116         else if ELEM3(ob->type, OB_CURVE, OB_SURF, OB_FONT) {
2117                 bb= ( (Curve *)ob->data )->bb;
2118         }
2119         else if(ob->type==OB_MBALL) {
2120                 bb= ob->bb;
2121         }
2122         return bb;
2123 }
2124
2125 /* used to temporally disable/enable boundbox */
2126 void object_boundbox_flag(Object *ob, int flag, int set)
2127 {
2128         BoundBox *bb= object_get_boundbox(ob);
2129         if(bb) {
2130                 if(set) bb->flag |= flag;
2131                 else bb->flag &= ~flag;
2132         }
2133 }
2134
2135 void minmax_object(Object *ob, float *min, float *max)
2136 {
2137         BoundBox bb;
2138         Mesh *me;
2139         Curve *cu;
2140         float vec[3];
2141         int a;
2142
2143         switch(ob->type) {
2144
2145         case OB_CURVE:
2146         case OB_FONT:
2147         case OB_SURF:
2148                 cu= ob->data;
2149
2150                 if(cu->bb==NULL) tex_space_curve(cu);
2151                 bb= *(cu->bb);
2152
2153                 for(a=0; a<8; a++) {
2154                         Mat4MulVecfl(ob->obmat, bb.vec[a]);
2155                         DO_MINMAX(bb.vec[a], min, max);
2156                 }
2157                 break;
2158         case OB_ARMATURE:
2159                 if(ob->pose) {
2160                         bPoseChannel *pchan;
2161                         for(pchan= ob->pose->chanbase.first; pchan; pchan= pchan->next) {
2162                                 VECCOPY(vec, pchan->pose_head);
2163                                 Mat4MulVecfl(ob->obmat, vec);
2164                                 DO_MINMAX(vec, min, max);
2165                                 VECCOPY(vec, pchan->pose_tail);
2166                                 Mat4MulVecfl(ob->obmat, vec);
2167                                 DO_MINMAX(vec, min, max);
2168                         }
2169                         break;
2170                 }
2171                 /* no break, get_mesh will give NULL and it passes on to default */
2172         case OB_MESH:
2173                 me= get_mesh(ob);
2174
2175                 if(me) {
2176                         bb = *mesh_get_bb(ob);
2177
2178                         for(a=0; a<8; a++) {
2179                                 Mat4MulVecfl(ob->obmat, bb.vec[a]);
2180                                 DO_MINMAX(bb.vec[a], min, max);
2181                         }
2182                 }
2183                 if(min[0] < max[0] ) break;
2184
2185                 /* else here no break!!!, mesh can be zero sized */
2186
2187         default:
2188                 DO_MINMAX(ob->obmat[3], min, max);
2189
2190                 VECCOPY(vec, ob->obmat[3]);
2191                 VecAddf(vec, vec, ob->size);
2192                 DO_MINMAX(vec, min, max);
2193
2194                 VECCOPY(vec, ob->obmat[3]);
2195                 VecSubf(vec, vec, ob->size);
2196                 DO_MINMAX(vec, min, max);
2197                 break;
2198         }
2199 }
2200
2201 /* TODO - use dupli objects bounding boxes */
2202 void minmax_object_duplis(Object *ob, float *min, float *max)
2203 {
2204         if ((ob->transflag & OB_DUPLI)==0) {
2205                 return;
2206         } else {
2207                 ListBase *lb;
2208                 DupliObject *dob;
2209
2210                 lb= object_duplilist(G.scene, ob);
2211                 for(dob= lb->first; dob; dob= dob->next) {
2212                         if(dob->no_draw);
2213                         else {
2214                                 /* should really use bound box of dup object */
2215                                 DO_MINMAX(dob->mat[3], min, max);
2216                         }
2217                 }
2218                 free_object_duplilist(lb);      /* does restore */
2219         }
2220 }
2221
2222
2223 /* proxy rule: lib_object->proxy_from == the one we borrow from, only set temporal and cleared here */
2224 /*           local_object->proxy      == pointer to library object, saved in files and read */
2225
2226 /* function below is polluted with proxy exceptions, cleanup will follow! */
2227
2228 /* the main object update call, for object matrix, constraints, keys and displist (modifiers) */
2229 /* requires flags to be set! */
2230 void object_handle_update(Object *ob)
2231 {
2232         if(ob->recalc & OB_RECALC) {
2233
2234                 if(ob->recalc & OB_RECALC_OB) {
2235
2236                         // printf("recalcob %s\n", ob->id.name+2);
2237
2238                         /* handle proxy copy for target */
2239                         if(ob->id.lib && ob->proxy_from) {
2240                                 // printf("ob proxy copy, lib ob %s proxy %s\n", ob->id.name, ob->proxy_from->id.name);
2241                                 if(ob->proxy_from->proxy_group) {/* transform proxy into group space */
2242                                         Object *obg= ob->proxy_from->proxy_group;
2243                                         Mat4Invert(obg->imat, obg->obmat);
2244                                         Mat4MulMat4(ob->obmat, ob->proxy_from->obmat, obg->imat);
2245                                 }
2246                                 else
2247                                         Mat4CpyMat4(ob->obmat, ob->proxy_from->obmat);
2248                         }
2249                         else
2250                                 where_is_object(ob);
2251                         if (G.f & G_DOSCRIPTLINKS) BPY_do_pyscript((ID *)ob, SCRIPT_OBJECTUPDATE);
2252                 }
2253
2254                 if(ob->recalc & OB_RECALC_DATA) {
2255
2256                         // printf("recalcdata %s\n", ob->id.name+2);
2257
2258                         /* includes all keys and modifiers */
2259                         if(ob->type==OB_MESH) {
2260                                 makeDerivedMesh(ob, get_viewedit_datamask());
2261                         }
2262                         else if(ob->type==OB_MBALL) {
2263                                 makeDispListMBall(ob);
2264                         }
2265                         else if(ELEM3(ob->type, OB_CURVE, OB_SURF, OB_FONT)) {
2266                                 makeDispListCurveTypes(ob, 0);
2267                         }
2268                         else if(ob->type==OB_LATTICE) {
2269                                 lattice_calc_modifiers(ob);
2270                         }
2271                         else if(ob->type==OB_CAMERA) {
2272                                 Camera *cam = (Camera *)ob->data;
2273                                 calc_ipo(cam->ipo, frame_to_float(G.scene->r.cfra));
2274                                 execute_ipo(&cam->id, cam->ipo);
2275                         }
2276                         else if(ob->type==OB_LAMP) {
2277                                 Lamp *la = (Lamp *)ob->data;
2278                                 calc_ipo(la->ipo, frame_to_float(G.scene->r.cfra));
2279                                 execute_ipo(&la->id, la->ipo);
2280                         }
2281                         else if(ob->type==OB_ARMATURE) {
2282                                 /* this happens for reading old files and to match library armatures with poses */
2283                                 if(ob->pose==NULL || (ob->pose->flag & POSE_RECALC))
2284                                         armature_rebuild_pose(ob, ob->data);
2285
2286                                 if(ob->id.lib && ob->proxy_from) {
2287                                         copy_pose_result(ob->pose, ob->proxy_from->pose);
2288                                         // printf("pose proxy copy, lib ob %s proxy %s\n", ob->id.name, ob->proxy_from->id.name);
2289                                 }
2290                                 else {
2291                                         do_all_pose_actions(ob);
2292                                         where_is_pose(ob);
2293                                 }
2294                         }
2295
2296                         if(ob->particlesystem.first) {
2297                                 ParticleSystem *tpsys, *psys;
2298                                 DerivedMesh *dm;
2299
2300                                 psys= ob->particlesystem.first;
2301                                 while(psys) {
2302                                         if(psys_check_enabled(ob, psys)) {
2303                                                 particle_system_update(ob, psys);
2304                                                 psys= psys->next;
2305                                         }
2306                                         else if(psys->flag & PSYS_DELETE) {
2307                                                 tpsys=psys->next;
2308                                                 BLI_remlink(&ob->particlesystem, psys);
2309                                                 psys_free(ob,psys);
2310                                                 psys= tpsys;
2311                                         }
2312                                         else
2313                                                 psys= psys->next;
2314                                 }
2315
2316                                 if(G.rendering && ob->transflag & OB_DUPLIPARTS) {
2317                                         /* this is to make sure we get render level duplis in groups:
2318                                          * the derivedmesh must be created before init_render_mesh,
2319                                          * since object_duplilist does dupliparticles before that */
2320                                         dm = mesh_create_derived_render(ob, CD_MASK_BAREMESH|CD_MASK_MTFACE|CD_MASK_MCOL);
2321                                         dm->release(dm);
2322
2323                                         for(psys=ob->particlesystem.first; psys; psys=psys->next)
2324                                                 psys_get_modifier(ob, psys)->flag &= ~eParticleSystemFlag_psys_updated;
2325                                 }
2326                         }
2327                         if (G.f & G_DOSCRIPTLINKS) BPY_do_pyscript((ID *)ob, SCRIPT_OBDATAUPDATE);
2328                 }
2329
2330                 /* the no-group proxy case, we call update */
2331                 if(ob->proxy && ob->proxy_group==NULL) {
2332                         /* set pointer in library proxy target, for copying, but restore it */
2333                         ob->proxy->proxy_from= ob;
2334                         // printf("call update, lib ob %s proxy %s\n", ob->proxy->id.name, ob->id.name);
2335                         object_handle_update(ob->proxy);
2336                 }
2337
2338                 ob->recalc &= ~OB_RECALC;
2339         }
2340
2341         /* the case when this is a group proxy, object_update is called in group.c */
2342         if(ob->proxy) {
2343                 ob->proxy->proxy_from= ob;
2344                 // printf("set proxy pointer for later group stuff %s\n", ob->id.name);
2345         }
2346 }
2347
2348 float give_timeoffset(Object *ob) {
2349         if ((ob->ipoflag & OB_OFFS_PARENTADD) && ob->parent) {
2350                 return ob->sf + give_timeoffset(ob->parent);
2351         } else {
2352                 return ob->sf;
2353         }
2354 }
2355
2356 int give_obdata_texspace(Object *ob, int **texflag, float **loc, float **size, float **rot) {
2357
2358         if (ob->data==NULL)
2359                 return 0;
2360
2361         switch (GS(((ID *)ob->data)->name)) {
2362         case ID_ME:
2363         {
2364                 Mesh *me= ob->data;
2365                 if (texflag)    *texflag = &me->texflag;
2366                 if (loc)                *loc = me->loc;
2367                 if (size)               *size = me->size;
2368                 if (rot)                *rot = me->rot;
2369                 break;
2370         }
2371         case ID_CU:
2372         {
2373                 Curve *cu= ob->data;
2374                 if (texflag)    *texflag = &cu->texflag;
2375                 if (loc)                *loc = cu->loc;
2376                 if (size)               *size = cu->size;
2377                 if (rot)                *rot = cu->rot;
2378                 break;
2379         }
2380         case ID_MB:
2381         {
2382                 MetaBall *mb= ob->data;
2383                 if (texflag)    *texflag = &mb->texflag;
2384                 if (loc)                *loc = mb->loc;
2385                 if (size)               *size = mb->size;
2386                 if (rot)                *rot = mb->rot;
2387                 break;
2388         }
2389         default:
2390                 return 0;
2391         }
2392         return 1;
2393 }
2394
2395 /*
2396  * Test a bounding box for ray intersection
2397  * assumes the ray is already local to the boundbox space
2398  */
2399 int ray_hit_boundbox(struct BoundBox *bb, float ray_start[3], float ray_normal[3])
2400 {
2401         static int triangle_indexes[12][3] = {{0, 1, 2}, {0, 2, 3},
2402                                                                                   {3, 2, 6}, {3, 6, 7},
2403                                                                                   {1, 2, 6}, {1, 6, 5},
2404                                                                                   {5, 6, 7}, {4, 5, 7},
2405                                                                                   {0, 3, 7}, {0, 4, 7},
2406                                                                                   {0, 1, 5}, {0, 4, 5}};
2407         int result = 0;
2408         int i;
2409
2410         for (i = 0; i < 12 && result == 0; i++)
2411         {
2412                 float lambda;
2413                 int v1, v2, v3;
2414                 v1 = triangle_indexes[i][0];
2415                 v2 = triangle_indexes[i][1];
2416                 v3 = triangle_indexes[i][2];
2417                 result = RayIntersectsTriangle(ray_start, ray_normal, bb->vec[v1], bb->vec[v2], bb->vec[v3], &lambda, NULL);
2418         }
2419
2420         return result;
2421 }