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         curvemapping_initialize(la->curfalloff);
 736         return la;
 737 }
 738
 739 Lamp *copy_lamp(Lamp *la)
 740 {
 741         Lamp *lan;
 742         int a;
 743
 744         lan= copy_libblock(la);
 745
 746         for(a=0; a<MAX_MTEX; a++) {
 747                 if(lan->mtex[a]) {
 748                         lan->mtex[a]= MEM_mallocN(sizeof(MTex), "copylamptex");
 749                         memcpy(lan->mtex[a], la->mtex[a], sizeof(MTex));
 750                         id_us_plus((ID *)lan->mtex[a]->tex);
 751                 }
 752         }
 753
 754         lan->curfalloff = curvemapping_copy(la->curfalloff);
 755
 756         id_us_plus((ID *)lan->ipo);
 757
 758         if (la->preview) lan->preview = BKE_previewimg_copy(la->preview);
 759
 760         BPY_copy_scriptlink(&la->scriptlink);
 761
 762         return lan;
 763 }
 764
 765 void make_local_lamp(Lamp *la)
 766 {
 767         Object *ob;
 768         Lamp *lan;
 769         int local=0, lib=0;
 770
 771         /* - only lib users: do nothing
 772             * - only local users: set flag
 773             * - mixed: make copy
 774             */
 775
 776         if(la->id.lib==0) return;
 777         if(la->id.us==1) {
 778                 la->id.lib= 0;
 779                 la->id.flag= LIB_LOCAL;
 780                 new_id(0, (ID *)la, 0);
 781                 return;
 782         }
 783
 784         ob= G.main->object.first;
 785         while(ob) {
 786                 if(ob->data==la) {
 787                         if(ob->id.lib) lib= 1;
 788                         else local= 1;
 789                 }
 790                 ob= ob->id.next;
 791         }
 792
 793         if(local && lib==0) {
 794                 la->id.lib= 0;
 795                 la->id.flag= LIB_LOCAL;
 796                 new_id(0, (ID *)la, 0);
 797         }
 798         else if(local && lib) {
 799                 lan= copy_lamp(la);
 800                 lan->id.us= 0;
 801
 802                 ob= G.main->object.first;
 803                 while(ob) {
 804                         if(ob->data==la) {
 805
 806                                 if(ob->id.lib==0) {
 807                                         ob->data= lan;
 808                                         lan->id.us++;
 809                                         la->id.us--;
 810                                 }
 811                         }
 812                         ob= ob->id.next;
 813                 }
 814         }
 815 }
 816
 817 void free_camera(Camera *ca)
 818 {
 819         BPY_free_scriptlink(&ca->scriptlink);
 820 }
 821
 822 void free_lamp(Lamp *la)
 823 {
 824         MTex *mtex;
 825         int a;
 826
 827         /* scriptlinks */
 828
 829         BPY_free_scriptlink(&la->scriptlink);
 830
 831         for(a=0; a<MAX_MTEX; a++) {
 832                 mtex= la->mtex[a];
 833                 if(mtex && mtex->tex) mtex->tex->id.us--;
 834                 if(mtex) MEM_freeN(mtex);
 835         }
 836         la->ipo= 0;
 837
 838         curvemapping_free(la->curfalloff);
 839
 840         BKE_previewimg_free(&la->preview);
 841         BKE_icon_delete(&la->id);
 842         la->id.icon_id = 0;
 843 }
 844
 845 void *add_wave()
 846 {
 847         return 0;
 848 }
 849
 850
 851 /* *************************************************** */
 852
 853 static void *add_obdata_from_type(int type)
 854 {
 855         switch (type) {
 856         case OB_MESH: G.totmesh++; return add_mesh("Mesh");
 857         case OB_CURVE: G.totcurve++; return add_curve("Curve", OB_CURVE);
 858         case OB_SURF: G.totcurve++; return add_curve("Surf", OB_SURF);
 859         case OB_FONT: return add_curve("Text", OB_FONT);
 860         case OB_MBALL: return add_mball("Meta");
 861         case OB_CAMERA: return add_camera("Camera");
 862         case OB_LAMP: G.totlamp++; return add_lamp("Lamp");
 863         case OB_LATTICE: return add_lattice("Lattice");
 864         case OB_WAVE: return add_wave();
 865         case OB_ARMATURE: return add_armature("Armature");
 866         case OB_EMPTY: return NULL;
 867         default:
 868                 printf("add_obdata_from_type: Internal error, bad type: %d\n", type);
 869                 return NULL;
 870         }
 871 }
 872
 873 static char *get_obdata_defname(int type)
 874 {
 875         switch (type) {
 876         case OB_MESH: return "Mesh";
 877         case OB_CURVE: return "Curve";
 878         case OB_SURF: return "Surf";
 879         case OB_FONT: return "Font";
 880         case OB_MBALL: return "Mball";
 881         case OB_CAMERA: return "Camera";
 882         case OB_LAMP: return "Lamp";
 883         case OB_LATTICE: return "Lattice";
 884         case OB_WAVE: return "Wave";
 885         case OB_ARMATURE: return "Armature";
 886         case OB_EMPTY: return "Empty";
 887         default:
 888                 printf("get_obdata_defname: Internal error, bad type: %d\n", type);
 889                 return "Empty";
 890         }
 891 }
 892
 893 /* more general add: creates minimum required data, but without vertices etc. */
 894 Object *add_only_object(int type, char *name)
 895 {
 896         Object *ob;
 897
 898         ob= alloc_libblock(&G.main->object, ID_OB, name);
 899         G.totobj++;
 900
 901         /* default object vars */
 902         ob->type= type;
 903         /* ob->transflag= OB_QUAT; */
 904
 905 #if 0 /* not used yet */
 906         QuatOne(ob->quat);
 907         QuatOne(ob->dquat);
 908 #endif
 909
 910         ob->col[0]= ob->col[1]= ob->col[2]= 0.0;
 911         ob->col[3]= 1.0;
 912
 913         ob->loc[0]= ob->loc[1]= ob->loc[2]= 0.0;
 914         ob->rot[0]= ob->rot[1]= ob->rot[2]= 0.0;
 915         ob->size[0]= ob->size[1]= ob->size[2]= 1.0;
 916
 917         Mat4One(ob->constinv);
 918         Mat4One(ob->parentinv);
 919         Mat4One(ob->obmat);
 920         ob->dt= OB_SHADED;
 921         if(U.flag & USER_MAT_ON_OB) ob->colbits= -1;
 922         ob->empty_drawtype= OB_ARROWS;
 923         ob->empty_drawsize= 1.0;
 924
 925         if(type==OB_CAMERA || type==OB_LAMP) {
 926                 ob->trackflag= OB_NEGZ;
 927                 ob->upflag= OB_POSY;
 928         }
 929         else {
 930                 ob->trackflag= OB_POSY;
 931                 ob->upflag= OB_POSZ;
 932         }
 933         ob->ipoflag = OB_OFFS_OB+OB_OFFS_PARENT;
 934         ob->ipowin= ID_OB;      /* the ipowin shown */
 935         ob->dupon= 1; ob->dupoff= 0;
 936         ob->dupsta= 1; ob->dupend= 100;
 937         ob->dupfacesca = 1.0;
 938
 939         /* Game engine defaults*/
 940         ob->mass= ob->inertia= 1.0f;
 941         ob->formfactor= 0.4f;
 942         ob->damping= 0.04f;
 943         ob->rdamping= 0.1f;
 944         ob->anisotropicFriction[0] = 1.0f;
 945         ob->anisotropicFriction[1] = 1.0f;
 946         ob->anisotropicFriction[2] = 1.0f;
 947         ob->gameflag= OB_PROP;
 948
 949         /* NT fluid sim defaults */
 950         ob->fluidsimFlag = 0;
 951         ob->fluidsimSettings = NULL;
 952
 953         return ob;
 954 }
 955
 956 /* general add: to G.scene, with layer from area and default name */
 957 /* creates minimum required data, but without vertices etc. */
 958 Object *add_object(int type)
 959 {
 960         Object *ob;
 961         Base *base;
 962         char name[32];
 963
 964         strcpy(name, get_obdata_defname(type));
 965         ob = add_only_object(type, name);
 966
 967         ob->data= add_obdata_from_type(type);
 968
 969         ob->lay= G.scene->lay;
 970
 971         base= scene_add_base(G.scene, ob);
 972         scene_select_base(G.scene, base);
 973         ob->recalc |= OB_RECALC;
 974
 975         return ob;
 976 }
 977
 978 void base_init_from_view3d(Base *base, View3D *v3d)
 979 {
 980         Object *ob= base->object;
 981
 982         if (!v3d) {
 983                 /* no 3d view, this wont happen often */
 984                 base->lay = 1;
 985                 VECCOPY(ob->loc, G.scene->cursor);
 986
 987                 /* return now because v3d->viewquat isnt available */
 988                 return;
 989         } else if (v3d->localview) {
 990                 base->lay= ob->lay= v3d->layact + v3d->lay;
 991                 VECCOPY(ob->loc, v3d->cursor);
 992         } else {
 993                 base->lay= ob->lay= v3d->layact;
 994                 VECCOPY(ob->loc, G.scene->cursor);
 995         }
 996
 997         if (U.flag & USER_ADD_VIEWALIGNED) {
 998                 v3d->viewquat[0]= -v3d->viewquat[0];
 999
1000                 /* Quats arnt used yet */
1001                 /*if (ob->transflag & OB_QUAT) {
1002                         QUATCOPY(ob->quat, v3d->viewquat);
1003                 } else {*/
1004                         QuatToEul(v3d->viewquat, ob->rot);
1005                 /*}*/
1006                 v3d->viewquat[0]= -v3d->viewquat[0];
1007         }
1008 }
1009
1010 SoftBody *copy_softbody(SoftBody *sb)
1011 {
1012         SoftBody *sbn;
1013
1014         if (sb==NULL) return(NULL);
1015
1016         sbn= MEM_dupallocN(sb);
1017         sbn->totspring= sbn->totpoint= 0;
1018         sbn->bpoint= NULL;
1019         sbn->bspring= NULL;
1020
1021         sbn->keys= NULL;
1022         sbn->totkey= sbn->totpointkey= 0;
1023
1024         sbn->scratch= NULL;
1025
1026         sbn->pointcache= BKE_ptcache_copy(sb->pointcache);
1027
1028         return sbn;
1029 }
1030
1031 ParticleSystem *copy_particlesystem(ParticleSystem *psys)
1032 {
1033         ParticleSystem *psysn;
1034         ParticleData *pa;
1035         int a;
1036
1037         psysn= MEM_dupallocN(psys);
1038         psysn->particles= MEM_dupallocN(psys->particles);
1039         psysn->child= MEM_dupallocN(psys->child);
1040
1041         for(a=0, pa=psysn->particles; a<psysn->totpart; a++, pa++) {
1042                 if(pa->hair)
1043                         pa->hair= MEM_dupallocN(pa->hair);
1044                 if(pa->keys)
1045                         pa->keys= MEM_dupallocN(pa->keys);
1046         }
1047
1048         if(psys->soft) {
1049                 psysn->soft= copy_softbody(psys->soft);
1050                 psysn->soft->particles = psysn;
1051         }
1052
1053         psysn->pathcache= NULL;
1054         psysn->childcache= NULL;
1055         psysn->edit= NULL;
1056         psysn->effectors.first= psysn->effectors.last= 0;
1057
1058         psysn->pointcache= BKE_ptcache_copy(psys->pointcache);
1059
1060         id_us_plus((ID *)psysn->part);
1061
1062         return psysn;
1063 }
1064
1065 void copy_object_particlesystems(Object *obn, Object *ob)
1066 {
1067         ParticleSystemModifierData *psmd;
1068         ParticleSystem *psys, *npsys;
1069         ModifierData *md;
1070
1071         obn->particlesystem.first= obn->particlesystem.last= NULL;
1072         for(psys=ob->particlesystem.first; psys; psys=psys->next) {
1073                 npsys= copy_particlesystem(psys);
1074
1075                 BLI_addtail(&obn->particlesystem, npsys);
1076
1077                 /* need to update particle modifiers too */
1078                 for(md=obn->modifiers.first; md; md=md->next) {
1079                         if(md->type==eModifierType_ParticleSystem) {
1080                                 psmd= (ParticleSystemModifierData*)md;
1081                                 if(psmd->psys==psys)
1082                                         psmd->psys= npsys;
1083                         }
1084                 }
1085         }
1086 }
1087
1088 void copy_object_softbody(Object *obn, Object *ob)
1089 {
1090         if(ob->soft)
1091                 obn->soft= copy_softbody(ob->soft);
1092 }
1093
1094 static void copy_object_pose(Object *obn, Object *ob)
1095 {
1096         bPoseChannel *chan;
1097
1098         copy_pose(&obn->pose, ob->pose, 1);     /* 1 = copy constraints */
1099
1100         for (chan = obn->pose->chanbase.first; chan; chan=chan->next){
1101                 bConstraint *con;
1102
1103                 chan->flag &= ~(POSE_LOC|POSE_ROT|POSE_SIZE);
1104
1105                 for (con= chan->constraints.first; con; con= con->next) {
1106                         bConstraintTypeInfo *cti= constraint_get_typeinfo(con);
1107                         ListBase targets = {NULL, NULL};
1108                         bConstraintTarget *ct;
1109
1110                         if(con->ipo) {
1111                                 IpoCurve *icu;
1112                                 for(icu= con->ipo->curve.first; icu; icu= icu->next) {
1113                                         if(icu->driver && icu->driver->ob==ob)
1114                                                 icu->driver->ob= obn;
1115                                 }
1116                         }
1117
1118                         if (cti && cti->get_constraint_targets) {
1119                                 cti->get_constraint_targets(con, &targets);
1120
1121                                 for (ct= targets.first; ct; ct= ct->next) {
1122                                         if (ct->tar == ob)
1123                                                 ct->tar = obn;
1124                                 }
1125
1126                                 if (cti->flush_constraint_targets)
1127                                         cti->flush_constraint_targets(con, &targets, 0);
1128                         }
1129                 }
1130         }
1131 }
1132
1133 Object *copy_object(Object *ob)
1134 {
1135         Object *obn;
1136         ModifierData *md;
1137         int a;
1138
1139         obn= copy_libblock(ob);
1140
1141         if(ob->totcol) {
1142                 obn->mat= MEM_dupallocN(ob->mat);
1143         }
1144
1145         if(ob->bb) obn->bb= MEM_dupallocN(ob->bb);
1146         obn->path= NULL;
1147         obn->flag &= ~OB_FROMGROUP;
1148
1149         obn->modifiers.first = obn->modifiers.last= NULL;
1150
1151         for (md=ob->modifiers.first; md; md=md->next) {
1152                 ModifierData *nmd = modifier_new(md->type);
1153                 modifier_copyData(md, nmd);
1154                 BLI_addtail(&obn->modifiers, nmd);
1155         }
1156
1157         BPY_copy_scriptlink(&ob->scriptlink);
1158
1159         copy_properties(&obn->prop, &ob->prop);
1160         copy_sensors(&obn->sensors, &ob->sensors);
1161         copy_controllers(&obn->controllers, &ob->controllers);
1162         copy_actuators(&obn->actuators, &ob->actuators);
1163
1164         if(ob->pose) {
1165                 copy_object_pose(obn, ob);
1166                 /* backwards compat... non-armatures can get poses in older files? */
1167                 if(ob->type==OB_ARMATURE)
1168                         armature_rebuild_pose(obn, obn->data);
1169         }
1170         copy_defgroups(&obn->defbase, &ob->defbase);
1171         copy_nlastrips(&obn->nlastrips, &ob->nlastrips);
1172         copy_constraints (&obn->constraints, &ob->constraints);
1173
1174         clone_constraint_channels (&obn->constraintChannels, &ob->constraintChannels);
1175
1176         /* increase user numbers */
1177         id_us_plus((ID *)obn->data);
1178         id_us_plus((ID *)obn->ipo);
1179         id_us_plus((ID *)obn->action);
1180         id_us_plus((ID *)obn->dup_group);
1181
1182         for(a=0; a<obn->totcol; a++) id_us_plus((ID *)obn->mat[a]);
1183
1184         obn->disp.first= obn->disp.last= NULL;
1185
1186         if(ob->pd){
1187                 obn->pd= MEM_dupallocN(ob->pd);
1188                 if(obn->pd->tex)
1189                         id_us_plus(&(obn->pd->tex->id));
1190         }
1191         obn->soft= copy_softbody(ob->soft);
1192
1193         /* NT copy fluid sim setting memory */
1194         if(obn->fluidsimSettings) {
1195                 obn->fluidsimSettings = fluidsimSettingsCopy(ob->fluidsimSettings);
1196                 /* copying might fail... */
1197                 if(obn->fluidsimSettings) {
1198                         obn->fluidsimSettings->orgMesh = (Mesh *)obn->data;
1199                 }
1200         }
1201
1202         copy_object_particlesystems(obn, ob);
1203
1204         obn->derivedDeform = NULL;
1205         obn->derivedFinal = NULL;
1206
1207 #ifdef WITH_VERSE
1208         obn->vnode = NULL;
1209 #endif
1210
1211
1212         return obn;
1213 }
1214
1215 void expand_local_object(Object *ob)
1216 {
1217         bActionStrip *strip;
1218         int a;
1219
1220         id_lib_extern((ID *)ob->action);
1221         id_lib_extern((ID *)ob->ipo);
1222         id_lib_extern((ID *)ob->data);
1223         id_lib_extern((ID *)ob->dup_group);
1224
1225         for(a=0; a<ob->totcol; a++) {
1226                 id_lib_extern((ID *)ob->mat[a]);
1227         }
1228         for (strip=ob->nlastrips.first; strip; strip=strip->next) {
1229                 id_lib_extern((ID *)strip->act);
1230         }
1231
1232 }
1233
1234 void make_local_object(Object *ob)
1235 {
1236         Object *obn;
1237         Scene *sce;
1238         Base *base;
1239         int local=0, lib=0;
1240
1241         /* - only lib users: do nothing
1242             * - only local users: set flag
1243             * - mixed: make copy
1244             */
1245
1246         if(ob->id.lib==NULL) return;
1247
1248         ob->proxy= ob->proxy_from= NULL;
1249
1250         if(ob->id.us==1) {
1251                 ob->id.lib= NULL;
1252                 ob->id.flag= LIB_LOCAL;
1253                 new_id(0, (ID *)ob, 0);
1254
1255         }
1256         else {
1257                 sce= G.main->scene.first;
1258                 while(sce) {
1259                         base= sce->base.first;
1260                         while(base) {
1261                                 if(base->object==ob) {
1262                                         if(sce->id.lib) lib++;
1263                                         else local++;
1264                                         break;
1265                                 }
1266                                 base= base->next;
1267                         }
1268                         sce= sce->id.next;
1269                 }
1270
1271                 if(local && lib==0) {
1272                         ob->id.lib= 0;
1273                         ob->id.flag= LIB_LOCAL;
1274                         new_id(0, (ID *)ob, 0);
1275                 }
1276                 else if(local && lib) {
1277                         obn= copy_object(ob);
1278                         obn->id.us= 0;
1279
1280                         sce= G.main->scene.first;
1281                         while(sce) {
1282                                 if(sce->id.lib==0) {
1283                                         base= sce->base.first;
1284                                         while(base) {
1285                                                 if(base->object==ob) {
1286                                                         base->object= obn;
1287                                                         obn->id.us++;
1288                                                         ob->id.us--;
1289                                                 }
1290                                                 base= base->next;
1291                                         }
1292                                 }
1293                                 sce= sce->id.next;
1294                         }
1295                 }
1296         }
1297
1298         expand_local_object(ob);
1299 }
1300
1301 /* *************** PROXY **************** */
1302
1303 /* when you make proxy, ensure the exposed layers are extern */
1304 void armature_set_id_extern(Object *ob)
1305 {
1306         bArmature *arm= ob->data;
1307         bPoseChannel *pchan;
1308         int lay= arm->layer_protected;
1309
1310         for (pchan = ob->pose->chanbase.first; pchan; pchan=pchan->next) {
1311                 if(!(pchan->bone->layer & lay))
1312                         id_lib_extern((ID *)pchan->custom);
1313         }
1314
1315 }
1316
1317 /* proxy rule: lib_object->proxy_from == the one we borrow from, set temporally while object_update */
1318 /*             local_object->proxy == pointer to library object, saved in files and read */
1319 /*             local_object->proxy_group == pointer to group dupli-object, saved in files and read */
1320
1321 void object_make_proxy(Object *ob, Object *target, Object *gob)
1322 {
1323         /* paranoia checks */
1324         if(ob->id.lib || target->id.lib==NULL) {
1325                 printf("cannot make proxy\n");
1326                 return;
1327         }
1328
1329         ob->proxy= target;
1330         ob->proxy_group= gob;
1331         id_lib_extern(&target->id);
1332
1333         ob->recalc= target->recalc= OB_RECALC;
1334
1335         /* copy transform */
1336         if(gob) {
1337                 VECCOPY(ob->loc, gob->loc);
1338                 VECCOPY(ob->rot, gob->rot);
1339                 VECCOPY(ob->size, gob->size);
1340
1341                 group_tag_recalc(gob->dup_group);
1342         }
1343         else {
1344                 VECCOPY(ob->loc, target->loc);
1345                 VECCOPY(ob->rot, target->rot);
1346                 VECCOPY(ob->size, target->size);
1347         }
1348
1349         ob->parent= target->parent;     /* libdata */
1350         Mat4CpyMat4(ob->parentinv, target->parentinv);
1351         ob->ipo= target->ipo;           /* libdata */
1352
1353         /* skip constraints, constraintchannels, nla? */
1354
1355         /* set object type and link to data */
1356         ob->type= target->type;
1357         ob->data= target->data;
1358         id_us_plus((ID *)ob->data);             /* ensures lib data becomes LIB_EXTERN */
1359
1360         /* copy material and index information */
1361         ob->actcol= ob->totcol= 0;
1362         if(ob->mat) MEM_freeN(ob->mat);
1363         ob->mat = NULL;
1364         if ((target->totcol) && (target->mat) && OB_SUPPORT_MATERIAL(ob)) {
1365                 int i;
1366                 ob->colbits = target->colbits;
1367
1368                 ob->actcol= target->actcol;
1369                 ob->totcol= target->totcol;
1370
1371                 ob->mat = MEM_dupallocN(target->mat);
1372                 for(i=0; i<target->totcol; i++) {
1373                         /* dont need to run test_object_materials since we know this object is new and not used elsewhere */
1374                         id_us_plus(ob->mat[i]);
1375                 }
1376         }
1377
1378         /* type conversions */
1379         if(target->type == OB_ARMATURE) {
1380                 copy_object_pose(ob, target);   /* data copy, object pointers in constraints */
1381                 rest_pose(ob->pose);                    /* clear all transforms in channels */
1382                 armature_rebuild_pose(ob, ob->data);    /* set all internal links */
1383
1384                 armature_set_id_extern(ob);
1385         }
1386 }
1387
1388
1389 /* *************** CALC ****************** */
1390
1391 /* there is also a timing calculation in drawobject() */
1392
1393 float bluroffs= 0.0f, fieldoffs= 0.0f;
1394 int no_speed_curve= 0;
1395
1396 /* ugly calls from render */
1397 void set_mblur_offs(float blur)
1398 {
1399         bluroffs= blur;
1400 }
1401
1402 void set_field_offs(float field)
1403 {
1404         fieldoffs= field;
1405 }
1406
1407 void disable_speed_curve(int val)
1408 {
1409         no_speed_curve= val;
1410 }
1411
1412 /* ob can be NULL */
1413 float bsystem_time(Object *ob, float cfra, float ofs)
1414 {
1415         /* returns float ( see frame_to_float in ipo.c) */
1416
1417         /* bluroffs and fieldoffs are ugly globals that are set by render */
1418         cfra+= bluroffs+fieldoffs;
1419
1420         /* global time */
1421         cfra*= G.scene->r.framelen;
1422
1423         if (ob) {
1424                 if (no_speed_curve==0 && ob->ipo)
1425                         cfra= calc_ipo_time(ob->ipo, cfra);
1426
1427                 /* ofset frames */
1428                 if ((ob->ipoflag & OB_OFFS_PARENT) && (ob->partype & PARSLOW)==0)
1429                         cfra-= give_timeoffset(ob);
1430         }
1431
1432         cfra-= ofs;
1433
1434         return cfra;
1435 }
1436
1437 void object_to_mat3(Object *ob, float mat[][3]) /* no parent */
1438 {
1439         float smat[3][3], vec[3];
1440         float rmat[3][3];
1441         /*float q1[4];*/
1442
1443         /* size */
1444         if(ob->ipo) {
1445                 vec[0]= ob->size[0]+ob->dsize[0];
1446                 vec[1]= ob->size[1]+ob->dsize[1];
1447                 vec[2]= ob->size[2]+ob->dsize[2];
1448                 SizeToMat3(vec, smat);
1449         }
1450         else {
1451                 SizeToMat3(ob->size, smat);
1452         }
1453
1454         /* rot */
1455         /* Quats arnt used yet */
1456         /*if(ob->transflag & OB_QUAT) {
1457                 if(ob->ipo) {
1458                         QuatMul(q1, ob->quat, ob->dquat);
1459                         QuatToMat3(q1, rmat);
1460                 }
1461                 else {
1462                         QuatToMat3(ob->quat, rmat);
1463                 }
1464         }
1465         else {*/
1466                 if(ob->ipo) {
1467                         vec[0]= ob->rot[0]+ob->drot[0];
1468                         vec[1]= ob->rot[1]+ob->drot[1];
1469                         vec[2]= ob->rot[2]+ob->drot[2];
1470                         EulToMat3(vec, rmat);
1471                 }
1472                 else {
1473                         EulToMat3(ob->rot, rmat);
1474                 }
1475         /*}*/
1476         Mat3MulMat3(mat, rmat, smat);
1477 }
1478
1479 void object_to_mat4(Object *ob, float mat[][4])
1480 {
1481         float tmat[3][3];
1482
1483         object_to_mat3(ob, tmat);
1484
1485         Mat4CpyMat3(mat, tmat);
1486
1487         VECCOPY(mat[3], ob->loc);
1488         if(ob->ipo) {
1489                 mat[3][0]+= ob->dloc[0];
1490                 mat[3][1]+= ob->dloc[1];
1491                 mat[3][2]+= ob->dloc[2];
1492         }
1493 }
1494
1495 int enable_cu_speed= 1;
1496
1497 static void ob_parcurve(Object *ob, Object *par, float mat[][4])
1498 {
1499         Curve *cu;
1500         float q[4], vec[4], dir[3], quat[4], x1, ctime;
1501         float timeoffs = 0.0, sf_orig = 0.0;
1502
1503         Mat4One(mat);
1504
1505         cu= par->data;
1506         if(cu->path==NULL || cu->path->data==NULL) /* only happens on reload file, but violates depsgraph still... fix! */
1507                 makeDispListCurveTypes(par, 0);
1508         if(cu->path==NULL) return;
1509
1510         /* exception, timeoffset is regarded as distance offset */
1511         if(cu->flag & CU_OFFS_PATHDIST) {
1512                 timeoffs = give_timeoffset(ob);
1513                 SWAP(float, sf_orig, ob->sf);
1514         }
1515
1516         /* catch exceptions: feature for nla stride editing */
1517         if(ob->ipoflag & OB_DISABLE_PATH) {
1518                 ctime= 0.0f;
1519         }
1520         /* catch exceptions: curve paths used as a duplicator */
1521         else if(enable_cu_speed) {
1522                 ctime= bsystem_time(ob, (float)G.scene->r.cfra, 0.0);
1523
1524                 if(calc_ipo_spec(cu->ipo, CU_SPEED, &ctime)==0) {
1525                         ctime /= cu->pathlen;
1526                         CLAMP(ctime, 0.0, 1.0);
1527                 }
1528         }
1529         else {
1530                 ctime= G.scene->r.cfra - give_timeoffset(ob);
1531                 ctime /= cu->pathlen;
1532
1533                 CLAMP(ctime, 0.0, 1.0);
1534         }
1535
1536         /* time calculus is correct, now apply distance offset */
1537         if(cu->flag & CU_OFFS_PATHDIST) {
1538                 ctime += timeoffs/cu->path->totdist;
1539
1540                 /* restore */
1541                 SWAP(float, sf_orig, ob->sf);
1542         }
1543
1544
1545         /* vec: 4 items! */
1546         if( where_on_path(par, ctime, vec, dir) ) {
1547
1548                 if(cu->flag & CU_FOLLOW) {
1549                         vectoquat(dir, ob->trackflag, ob->upflag, quat);
1550
1551                         /* the tilt */
1552                         Normalize(dir);
1553                         q[0]= (float)cos(0.5*vec[3]);
1554                         x1= (float)sin(0.5*vec[3]);
1555                         q[1]= -x1*dir[0];
1556                         q[2]= -x1*dir[1];
1557                         q[3]= -x1*dir[2];
1558                         QuatMul(quat, q, quat);
1559
1560                         QuatToMat4(quat, mat);
1561                 }
1562
1563                 VECCOPY(mat[3], vec);
1564
1565         }
1566 }
1567
1568 static void ob_parbone(Object *ob, Object *par, float mat[][4])
1569 {
1570         bPoseChannel *pchan;
1571         bArmature *arm;
1572         float vec[3];
1573
1574         arm=get_armature(par);
1575         if (!arm) {
1576                 Mat4One(mat);
1577                 return;
1578         }
1579
1580         /* Make sure the bone is still valid */
1581         pchan= get_pose_channel(par->pose, ob->parsubstr);
1582         if (!pchan){
1583                 printf ("Object %s with Bone parent: bone %s doesn't exist\n", ob->id.name+2, ob->parsubstr);
1584                 Mat4One(mat);
1585                 return;
1586         }
1587
1588         /* get bone transform */
1589         Mat4CpyMat4(mat, pchan->pose_mat);
1590
1591         /* but for backwards compatibility, the child has to move to the tail */
1592         VECCOPY(vec, mat[1]);
1593         VecMulf(vec, pchan->bone->length);
1594         VecAddf(mat[3], mat[3], vec);
1595 }
1596
1597 static void give_parvert(Object *par, int nr, float *vec)
1598 {
1599         int a, count;
1600
1601         vec[0]=vec[1]=vec[2]= 0.0f;
1602
1603         if(par->type==OB_MESH) {
1604                 if(G.obedit && (par->data==G.obedit->data)) {
1605                         EditMesh *em = G.editMesh;
1606                         EditVert *eve;
1607
1608                         for(eve= em->verts.first; eve; eve= eve->next) {
1609                                 if(eve->keyindex==nr) {
1610                                         memcpy(vec, eve->co, 12);
1611                                         break;
1612                                 }
1613                         }
1614                 }
1615                 else {
1616                         DerivedMesh *dm = par->derivedFinal;
1617
1618                         if(dm) {
1619                                 int i, count = 0, numVerts = dm->getNumVerts(dm);
1620                                 int *index = (int *)dm->getVertDataArray(dm, CD_ORIGINDEX);
1621                                 float co[3];
1622
1623                                 /* get the average of all verts with (original index == nr) */
1624                                 for(i = 0; i < numVerts; ++i, ++index) {
1625                                         if(*index == nr) {
1626                                                 dm->getVertCo(dm, i, co);
1627                                                 VecAddf(vec, vec, co);
1628                                                 count++;
1629                                         }
1630                                 }
1631
1632                                 if(count > 0) {
1633                                         VecMulf(vec, 1.0f / count);
1634                                 } else {
1635                                         dm->getVertCo(dm, 0, vec);
1636                                 }
1637                         }
1638                 }
1639         }
1640         else if ELEM(par->type, OB_CURVE, OB_SURF) {
1641                 Nurb *nu;
1642                 Curve *cu;
1643                 BPoint *bp;
1644                 BezTriple *bezt;
1645
1646                 cu= par->data;
1647                 nu= cu->nurb.first;
1648                 if(par==G.obedit) nu= editNurb.first;
1649
1650                 count= 0;
1651                 while(nu) {
1652                         if((nu->type & 7)==CU_BEZIER) {
1653                                 bezt= nu->bezt;
1654                                 a= nu->pntsu;
1655                                 while(a--) {
1656                                         if(count==nr) {
1657                                                 VECCOPY(vec, bezt->vec[1]);
1658                                                 break;
1659                                         }
1660                                         count++;
1661                                         bezt++;
1662                                 }
1663                         }
1664                         else {
1665                                 bp= nu->bp;
1666                                 a= nu->pntsu*nu->pntsv;
1667                                 while(a--) {
1668                                         if(count==nr) {
1669                                                 memcpy(vec, bp->vec, 12);
1670                                                 break;
1671                                         }
1672                                         count++;
1673                                         bp++;
1674                                 }
1675                         }
1676                         nu= nu->next;
1677                 }
1678
1679         }
1680         else if(par->type==OB_LATTICE) {
1681                 Lattice *latt= par->data;
1682                 BPoint *bp;
1683                 DispList *dl = find_displist(&par->disp, DL_VERTS);
1684                 float *co = dl?dl->verts:NULL;
1685
1686                 if(par==G.obedit) latt= editLatt;
1687
1688                 a= latt->pntsu*latt->pntsv*latt->pntsw;
1689                 count= 0;
1690                 bp= latt->def;
1691                 while(a--) {
1692                         if(count==nr) {
1693                                 if(co)
1694                                         memcpy(vec, co, 3*sizeof(float));
1695                                 else
1696                                         memcpy(vec, bp->vec, 3*sizeof(float));
1697                                 break;
1698                         }
1699                         count++;
1700                         if(co) co+= 3;
1701                         else bp++;
1702                 }
1703         }
1704 }
1705
1706 static void ob_parvert3(Object *ob, Object *par, float mat[][4])
1707 {
1708         float cmat[3][3], v1[3], v2[3], v3[3], q[4];
1709
1710         /* in local ob space */
1711         Mat4One(mat);
1712
1713         if ELEM4(par->type, OB_MESH, OB_SURF, OB_CURVE, OB_LATTICE) {
1714
1715                 give_parvert(par, ob->par1, v1);
1716                 give_parvert(par, ob->par2, v2);
1717                 give_parvert(par, ob->par3, v3);
1718
1719                 triatoquat(v1, v2, v3, q);
1720                 QuatToMat3(q, cmat);
1721                 Mat4CpyMat3(mat, cmat);
1722
1723                 if(ob->type==OB_CURVE) {
1724                         VECCOPY(mat[3], v1);
1725                 }
1726                 else {
1727                         VecAddf(mat[3], v1, v2);
1728                         VecAddf(mat[3], mat[3], v3);
1729                         VecMulf(mat[3], 0.3333333f);
1730                 }
1731         }
1732 }
1733
1734 static int no_parent_ipo=0;
1735 void set_no_parent_ipo(int val)
1736 {
1737         no_parent_ipo= val;
1738 }
1739
1740 static int during_script_flag=0;
1741 void disable_where_script(short on)
1742 {
1743         during_script_flag= on;
1744 }
1745
1746 int during_script(void) {
1747         return during_script_flag;
1748 }
1749
1750 static int during_scriptlink_flag=0;
1751 void disable_where_scriptlink(short on)
1752 {
1753         during_scriptlink_flag= on;
1754 }
1755
1756 int during_scriptlink(void) {
1757         return during_scriptlink_flag;
1758 }
1759
1760 void where_is_object_time(Object *ob, float ctime)
1761 {
1762         float *fp1, *fp2, slowmat[4][4] = MAT4_UNITY;
1763         float stime, fac1, fac2, vec[3];
1764         int a;
1765         int pop;
1766
1767         /* new version: correct parent+vertexparent and track+parent */
1768         /* this one only calculates direct attached parent and track */
1769         /* is faster, but should keep track of timeoffs */
1770
1771         if(ob==NULL) return;
1772
1773         /* this is needed to be able to grab objects with ipos, otherwise it always freezes them */
1774         stime= bsystem_time(ob, ctime, 0.0);
1775         if(stime != ob->ctime) {
1776
1777                 ob->ctime= stime;
1778
1779                 if(ob->ipo) {
1780                         calc_ipo(ob->ipo, stime);
1781                         execute_ipo((ID *)ob, ob->ipo);
1782                 }
1783                 else
1784                         do_all_object_actions(ob);
1785
1786                 /* do constraint ipos ..., note it needs stime (0 = all ipos) */
1787                 do_constraint_channels(&ob->constraints, &ob->constraintChannels, stime, 0);
1788         }
1789         else {
1790                 /* but, the drivers have to be done */
1791                 if(ob->ipo) do_ob_ipodrivers(ob, ob->ipo, stime);
1792                 /* do constraint ipos ..., note it needs stime (1 = only drivers ipos) */
1793                 do_constraint_channels(&ob->constraints, &ob->constraintChannels, stime, 1);
1794         }
1795
1796         if(ob->parent) {
1797                 Object *par= ob->parent;
1798
1799                 if(ob->ipoflag & OB_OFFS_PARENT) ctime-= give_timeoffset(ob);
1800
1801                 /* hurms, code below conflicts with depgraph... (ton) */
1802                 /* and even worse, it gives bad effects for NLA stride too (try ctime != par->ctime, with MBlur) */
1803                 pop= 0;
1804                 if(no_parent_ipo==0 && stime != par->ctime) {
1805
1806                         // only for ipo systems?
1807                         pushdata(par, sizeof(Object));
1808                         pop= 1;
1809
1810                         if(par->proxy_from);    // was a copied matrix, no where_is! bad...
1811                         else where_is_object_time(par, ctime);
1812                 }
1813
1814                 solve_parenting(ob, par, ob->obmat, slowmat, 0);
1815
1816                 if(pop) {
1817                         poplast(par);
1818                 }
1819
1820                 if(ob->partype & PARSLOW) {
1821                         // include framerate
1822
1823                         fac1= (1.0f/(1.0f+ fabs(give_timeoffset(ob))));
1824                         if(fac1>=1.0) return;
1825                         fac2= 1.0f-fac1;
1826
1827                         fp1= ob->obmat[0];
1828                         fp2= slowmat[0];
1829                         for(a=0; a<16; a++, fp1++, fp2++) {
1830                                 fp1[0]= fac1*fp1[0] + fac2*fp2[0];
1831                         }
1832                 }
1833
1834         }
1835         else {
1836                 object_to_mat4(ob, ob->obmat);
1837         }
1838
1839         /* Handle tracking */
1840         if(ob->track) {
1841                 if( ctime != ob->track->ctime) where_is_object_time(ob->track, ctime);
1842                 solve_tracking (ob, ob->track->obmat);
1843
1844         }
1845
1846         /* solve constraints */
1847         if (ob->constraints.first) {
1848                 bConstraintOb *cob;
1849
1850                 cob= constraints_make_evalob(ob, NULL, CONSTRAINT_OBTYPE_OBJECT);
1851
1852                 /* constraints need ctime, not stime. Some call where_is_object_time and bsystem_time */
1853                 solve_constraints (&ob->constraints, cob, ctime);
1854
1855                 constraints_clear_evalob(cob);
1856         }
1857
1858         if(ob->scriptlink.totscript && !during_script()) {
1859                 if (G.f & G_DOSCRIPTLINKS) BPY_do_pyscript((ID *)ob, SCRIPT_REDRAW);
1860         }
1861
1862         /* set negative scale flag in object */
1863         Crossf(vec, ob->obmat[0], ob->obmat[1]);
1864         if( Inpf(vec, ob->obmat[2]) < 0.0 ) ob->transflag |= OB_NEG_SCALE;
1865         else ob->transflag &= ~OB_NEG_SCALE;
1866 }
1867
1868 static void solve_parenting (Object *ob, Object *par, float obmat[][4], float slowmat[][4], int simul)
1869 {
1870         float totmat[4][4];
1871         float tmat[4][4];
1872         float locmat[4][4];
1873         float vec[3];
1874         int ok;
1875
1876         object_to_mat4(ob, locmat);
1877
1878         if(ob->partype & PARSLOW) Mat4CpyMat4(slowmat, obmat);
1879
1880
1881         switch(ob->partype & PARTYPE) {
1882         case PAROBJECT:
1883                 ok= 0;
1884                 if(par->type==OB_CURVE) {
1885                         if( ((Curve *)par->data)->flag & CU_PATH ) {
1886                                 ob_parcurve(ob, par, tmat);
1887                                 ok= 1;
1888                         }
1889                 }
1890
1891                 if(ok) Mat4MulSerie(totmat, par->obmat, tmat,
1892                         NULL, NULL, NULL, NULL, NULL, NULL);
1893                 else Mat4CpyMat4(totmat, par->obmat);
1894
1895                 break;
1896         case PARBONE:
1897                 ob_parbone(ob, par, tmat);
1898                 Mat4MulSerie(totmat, par->obmat, tmat,
1899                         NULL, NULL, NULL, NULL, NULL, NULL);
1900                 break;
1901
1902         case PARVERT1:
1903                 Mat4One(totmat);
1904                 if (simul){
1905                         VECCOPY(totmat[3], par->obmat[3]);
1906                 }
1907                 else{
1908                         give_parvert(par, ob->par1, vec);
1909                         VecMat4MulVecfl(totmat[3], par->obmat, vec);
1910                 }
1911                 break;
1912         case PARVERT3:
1913                 ob_parvert3(ob, par, tmat);
1914
1915                 Mat4MulSerie(totmat, par->obmat, tmat,
1916                         NULL, NULL, NULL, NULL, NULL, NULL);
1917                 break;
1918
1919         case PARSKEL:
1920                 Mat4CpyMat4(totmat, par->obmat);
1921                 break;
1922         }
1923
1924         // total
1925         Mat4MulSerie(tmat, totmat, ob->parentinv,
1926                 NULL, NULL, NULL, NULL, NULL, NULL);
1927         Mat4MulSerie(obmat, tmat, locmat,
1928                 NULL, NULL, NULL, NULL, NULL, NULL);
1929
1930         if (simul) {
1931
1932         }
1933         else{
1934                 // external usable originmat
1935                 Mat3CpyMat4(originmat, tmat);
1936
1937                 // origin, voor help line
1938                 if( (ob->partype & 15)==PARSKEL ) {
1939                         VECCOPY(ob->orig, par->obmat[3]);
1940                 }
1941                 else {
1942                         VECCOPY(ob->orig, totmat[3]);
1943                 }
1944         }
1945
1946 }
1947 void solve_tracking (Object *ob, float targetmat[][4])
1948 {
1949         float quat[4];
1950         float vec[3];
1951         float totmat[3][3];
1952         float tmat[4][4];
1953
1954         VecSubf(vec, ob->obmat[3], targetmat[3]);
1955         vectoquat(vec, ob->trackflag, ob->upflag, quat);
1956         QuatToMat3(quat, totmat);
1957
1958         if(ob->parent && (ob->transflag & OB_POWERTRACK)) {
1959                 /* 'temporal' : clear parent info */
1960                 object_to_mat4(ob, tmat);
1961                 tmat[0][3]= ob->obmat[0][3];
1962                 tmat[1][3]= ob->obmat[1][3];
1963                 tmat[2][3]= ob->obmat[2][3];
1964                 tmat[3][0]= ob->obmat[3][0];
1965                 tmat[3][1]= ob->obmat[3][1];
1966                 tmat[3][2]= ob->obmat[3][2];
1967                 tmat[3][3]= ob->obmat[3][3];
1968         }
1969         else Mat4CpyMat4(tmat, ob->obmat);
1970
1971         Mat4MulMat34(ob->obmat, totmat, tmat);
1972
1973 }
1974
1975 void where_is_object(Object *ob)
1976 {
1977         where_is_object_time(ob, (float)G.scene->r.cfra);
1978 }
1979
1980
1981 void where_is_object_simul(Object *ob)
1982 /* was written for the old game engine (until 2.04) */
1983 /* It seems that this function is only called
1984 for a lamp that is the child of another object */
1985 {
1986         Object *par;
1987         Ipo *ipo;
1988         float *fp1, *fp2;
1989         float slowmat[4][4];
1990         float fac1, fac2;
1991         int a;
1992
1993         /* NO TIMEOFFS */
1994
1995         /* no ipo! (because of dloc and realtime-ipos) */
1996         ipo= ob->ipo;
1997         ob->ipo= NULL;
1998
1999         if(ob->parent) {
2000                 par= ob->parent;
2001
2002                 solve_parenting(ob, par, ob->obmat, slowmat, 1);
2003
2004                 if(ob->partype & PARSLOW) {
2005
2006                         fac1= (float)(1.0/(1.0+ fabs(give_timeoffset(ob))));
2007                         fac2= 1.0f-fac1;
2008                         fp1= ob->obmat[0];
2009                         fp2= slowmat[0];
2010                         for(a=0; a<16; a++, fp1++, fp2++) {
2011                                 fp1[0]= fac1*fp1[0] + fac2*fp2[0];
2012                         }
2013                 }
2014
2015         }
2016         else {
2017                 object_to_mat4(ob, ob->obmat);
2018         }
2019
2020         if(ob->track)
2021                 solve_tracking(ob, ob->track->obmat);
2022
2023         /* solve constraints */
2024         if (ob->constraints.first) {
2025                 bConstraintOb *cob;
2026
2027                 cob= constraints_make_evalob(ob, NULL, CONSTRAINT_OBTYPE_OBJECT);
2028                 solve_constraints (&ob->constraints, cob, G.scene->r.cfra);
2029                 constraints_clear_evalob(cob);
2030         }
2031
2032         /*  WATCH IT!!! */
2033         ob->ipo= ipo;
2034 }
2035
2036 /* for calculation of the inverse parent transform, only used for editor */
2037 void what_does_parent(Object *ob)
2038 {
2039         clear_workob();
2040         Mat4One(workob.obmat);
2041         Mat4One(workob.parentinv);
2042         Mat4One(workob.constinv);
2043         workob.parent= ob->parent;
2044         workob.track= ob->track;
2045
2046         workob.trackflag= ob->trackflag;
2047         workob.upflag= ob->upflag;
2048
2049         workob.partype= ob->partype;
2050         workob.par1= ob->par1;
2051         workob.par2= ob->par2;
2052         workob.par3= ob->par3;
2053
2054         workob.constraints.first = ob->constraints.first;
2055         workob.constraints.last = ob->constraints.last;
2056
2057         strcpy(workob.parsubstr, ob->parsubstr);
2058
2059         where_is_object(&workob);
2060 }
2061
2062 BoundBox *unit_boundbox()
2063 {
2064         BoundBox *bb;
2065         float min[3] = {-1,-1,-1}, max[3] = {-1,-1,-1};
2066
2067         bb= MEM_callocN(sizeof(BoundBox), "bb");
2068         boundbox_set_from_min_max(bb, min, max);
2069
2070         return bb;
2071 }
2072
2073 void boundbox_set_from_min_max(BoundBox *bb, float min[3], float max[3])
2074 {
2075         bb->vec[0][0]=bb->vec[1][0]=bb->vec[2][0]=bb->vec[3][0]= min[0];
2076         bb->vec[4][0]=bb->vec[5][0]=bb->vec[6][0]=bb->vec[7][0]= max[0];
2077
2078         bb->vec[0][1]=bb->vec[1][1]=bb->vec[4][1]=bb->vec[5][1]= min[1];
2079         bb->vec[2][1]=bb->vec[3][1]=bb->vec[6][1]=bb->vec[7][1]= max[1];
2080
2081         bb->vec[0][2]=bb->vec[3][2]=bb->vec[4][2]=bb->vec[7][2]= min[2];
2082         bb->vec[1][2]=bb->vec[2][2]=bb->vec[5][2]=bb->vec[6][2]= max[2];
2083 }
2084
2085 BoundBox *object_get_boundbox(Object *ob)
2086 {
2087         BoundBox *bb= NULL;
2088
2089         if(ob->type==OB_MESH) {
2090                 bb = mesh_get_bb(ob);
2091         }
2092         else if ELEM3(ob->type, OB_CURVE, OB_SURF, OB_FONT) {
2093                 bb= ( (Curve *)ob->data )->bb;
2094         }
2095         else if(ob->type==OB_MBALL) {
2096                 bb= ob->bb;
2097         }
2098         return bb;
2099 }
2100
2101 /* used to temporally disable/enable boundbox */
2102 void object_boundbox_flag(Object *ob, int flag, int set)
2103 {
2104         BoundBox *bb= object_get_boundbox(ob);
2105         if(bb) {
2106                 if(set) bb->flag |= flag;
2107                 else bb->flag &= ~flag;
2108         }
2109 }
2110
2111 void minmax_object(Object *ob, float *min, float *max)
2112 {
2113         BoundBox bb;
2114         Mesh *me;
2115         Curve *cu;
2116         float vec[3];
2117         int a;
2118
2119         switch(ob->type) {
2120
2121         case OB_CURVE:
2122         case OB_FONT:
2123         case OB_SURF:
2124                 cu= ob->data;
2125
2126                 if(cu->bb==NULL) tex_space_curve(cu);
2127                 bb= *(cu->bb);
2128
2129                 for(a=0; a<8; a++) {
2130                         Mat4MulVecfl(ob->obmat, bb.vec[a]);
2131                         DO_MINMAX(bb.vec[a], min, max);
2132                 }
2133                 break;
2134         case OB_ARMATURE:
2135                 if(ob->pose) {
2136                         bPoseChannel *pchan;
2137                         for(pchan= ob->pose->chanbase.first; pchan; pchan= pchan->next) {
2138                                 VECCOPY(vec, pchan->pose_head);
2139                                 Mat4MulVecfl(ob->obmat, vec);
2140                                 DO_MINMAX(vec, min, max);
2141                                 VECCOPY(vec, pchan->pose_tail);
2142                                 Mat4MulVecfl(ob->obmat, vec);
2143                                 DO_MINMAX(vec, min, max);
2144                         }
2145                         break;
2146                 }
2147                 /* no break, get_mesh will give NULL and it passes on to default */
2148         case OB_MESH:
2149                 me= get_mesh(ob);
2150
2151                 if(me) {
2152                         bb = *mesh_get_bb(ob);
2153
2154                         for(a=0; a<8; a++) {
2155                                 Mat4MulVecfl(ob->obmat, bb.vec[a]);
2156                                 DO_MINMAX(bb.vec[a], min, max);
2157                         }
2158                 }
2159                 if(min[0] < max[0] ) break;
2160
2161                 /* else here no break!!!, mesh can be zero sized */
2162
2163         default:
2164                 DO_MINMAX(ob->obmat[3], min, max);
2165
2166                 VECCOPY(vec, ob->obmat[3]);
2167                 VecAddf(vec, vec, ob->size);
2168                 DO_MINMAX(vec, min, max);
2169
2170                 VECCOPY(vec, ob->obmat[3]);
2171                 VecSubf(vec, vec, ob->size);
2172                 DO_MINMAX(vec, min, max);
2173                 break;
2174         }
2175 }
2176
2177 /* TODO - use dupli objects bounding boxes */
2178 void minmax_object_duplis(Object *ob, float *min, float *max)
2179 {
2180         if ((ob->transflag & OB_DUPLI)==0) {
2181                 return;
2182         } else {
2183                 ListBase *lb;
2184                 DupliObject *dob;
2185
2186                 lb= object_duplilist(G.scene, ob);
2187                 for(dob= lb->first; dob; dob= dob->next) {
2188                         if(dob->no_draw);
2189                         else {
2190                                 /* should really use bound box of dup object */
2191                                 DO_MINMAX(dob->mat[3], min, max);
2192                         }
2193                 }
2194                 free_object_duplilist(lb);      /* does restore */
2195         }
2196 }
2197
2198
2199 /* proxy rule: lib_object->proxy_from == the one we borrow from, only set temporal and cleared here */
2200 /*           local_object->proxy      == pointer to library object, saved in files and read */
2201
2202 /* function below is polluted with proxy exceptions, cleanup will follow! */
2203
2204 /* the main object update call, for object matrix, constraints, keys and displist (modifiers) */
2205 /* requires flags to be set! */
2206 void object_handle_update(Object *ob)
2207 {
2208         if(ob->recalc & OB_RECALC) {
2209
2210                 if(ob->recalc & OB_RECALC_OB) {
2211
2212                         // printf("recalcob %s\n", ob->id.name+2);
2213
2214                         /* handle proxy copy for target */
2215                         if(ob->id.lib && ob->proxy_from) {
2216                                 // printf("ob proxy copy, lib ob %s proxy %s\n", ob->id.name, ob->proxy_from->id.name);
2217                                 if(ob->proxy_from->proxy_group) {/* transform proxy into group space */
2218                                         Object *obg= ob->proxy_from->proxy_group;
2219                                         Mat4Invert(obg->imat, obg->obmat);
2220                                         Mat4MulMat4(ob->obmat, ob->proxy_from->obmat, obg->imat);
2221                                 }
2222                                 else
2223                                         Mat4CpyMat4(ob->obmat, ob->proxy_from->obmat);
2224                         }
2225                         else
2226                                 where_is_object(ob);
2227                         if (G.f & G_DOSCRIPTLINKS) BPY_do_pyscript((ID *)ob, SCRIPT_OBJECTUPDATE);
2228                 }
2229
2230                 if(ob->recalc & OB_RECALC_DATA) {
2231
2232                         // printf("recalcdata %s\n", ob->id.name+2);
2233
2234                         /* includes all keys and modifiers */
2235                         if(ob->type==OB_MESH) {
2236                                 makeDerivedMesh(ob, get_viewedit_datamask());
2237                         }
2238                         else if(ob->type==OB_MBALL) {
2239                                 makeDispListMBall(ob);
2240                         }
2241                         else if(ELEM3(ob->type, OB_CURVE, OB_SURF, OB_FONT)) {
2242                                 makeDispListCurveTypes(ob, 0);
2243                         }
2244                         else if(ob->type==OB_LATTICE) {
2245                                 lattice_calc_modifiers(ob);
2246                         }
2247                         else if(ob->type==OB_CAMERA) {
2248                                 Camera *cam = (Camera *)ob->data;
2249                                 calc_ipo(cam->ipo, frame_to_float(G.scene->r.cfra));
2250                                 execute_ipo(&cam->id, cam->ipo);
2251                         }
2252                         else if(ob->type==OB_LAMP) {
2253                                 Lamp *la = (Lamp *)ob->data;
2254                                 calc_ipo(la->ipo, frame_to_float(G.scene->r.cfra));
2255                                 execute_ipo(&la->id, la->ipo);
2256                         }
2257                         else if(ob->type==OB_ARMATURE) {
2258                                 /* this happens for reading old files and to match library armatures with poses */
2259                                 if(ob->pose==NULL || (ob->pose->flag & POSE_RECALC))
2260                                         armature_rebuild_pose(ob, ob->data);
2261
2262                                 if(ob->id.lib && ob->proxy_from) {
2263                                         copy_pose_result(ob->pose, ob->proxy_from->pose);
2264                                         // printf("pose proxy copy, lib ob %s proxy %s\n", ob->id.name, ob->proxy_from->id.name);
2265                                 }
2266                                 else {
2267                                         do_all_pose_actions(ob);
2268                                         where_is_pose(ob);
2269                                 }
2270                         }
2271
2272                         if(ob->particlesystem.first) {
2273                                 ParticleSystem *tpsys, *psys;
2274                                 DerivedMesh *dm;
2275
2276                                 psys= ob->particlesystem.first;
2277                                 while(psys) {
2278                                         if(psys_check_enabled(ob, psys)) {
2279                                                 particle_system_update(ob, psys);
2280                                                 psys= psys->next;
2281                                         }
2282                                         else if(psys->flag & PSYS_DELETE) {
2283                                                 tpsys=psys->next;
2284                                                 BLI_remlink(&ob->particlesystem, psys);
2285                                                 psys_free(ob,psys);
2286                                                 psys= tpsys;
2287                                         }
2288                                         else
2289                                                 psys= psys->next;
2290                                 }
2291
2292                                 if(G.rendering && ob->transflag & OB_DUPLIPARTS) {
2293                                         /* this is to make sure we get render level duplis in groups:
2294                                          * the derivedmesh must be created before init_render_mesh,
2295                                          * since object_duplilist does dupliparticles before that */
2296                                         dm = mesh_create_derived_render(ob, CD_MASK_BAREMESH|CD_MASK_MTFACE|CD_MASK_MCOL);
2297                                         dm->release(dm);
2298
2299                                         for(psys=ob->particlesystem.first; psys; psys=psys->next)
2300                                                 psys_get_modifier(ob, psys)->flag &= ~eParticleSystemFlag_psys_updated;
2301                                 }
2302                         }
2303                         if (G.f & G_DOSCRIPTLINKS) BPY_do_pyscript((ID *)ob, SCRIPT_OBDATAUPDATE);
2304                 }
2305
2306                 /* the no-group proxy case, we call update */
2307                 if(ob->proxy && ob->proxy_group==NULL) {
2308                         /* set pointer in library proxy target, for copying, but restore it */
2309                         ob->proxy->proxy_from= ob;
2310                         // printf("call update, lib ob %s proxy %s\n", ob->proxy->id.name, ob->id.name);
2311                         object_handle_update(ob->proxy);
2312                 }
2313
2314                 ob->recalc &= ~OB_RECALC;
2315         }
2316
2317         /* the case when this is a group proxy, object_update is called in group.c */
2318         if(ob->proxy) {
2319                 ob->proxy->proxy_from= ob;
2320                 // printf("set proxy pointer for later group stuff %s\n", ob->id.name);
2321         }
2322 }
2323
2324 float give_timeoffset(Object *ob) {
2325         if ((ob->ipoflag & OB_OFFS_PARENTADD) && ob->parent) {
2326                 return ob->sf + give_timeoffset(ob->parent);
2327         } else {
2328                 return ob->sf;
2329         }
2330 }
2331
2332 int give_obdata_texspace(Object *ob, int **texflag, float **loc, float **size, float **rot) {
2333
2334         if (ob->data==NULL)
2335                 return 0;
2336
2337         switch (GS(((ID *)ob->data)->name)) {
2338         case ID_ME:
2339         {
2340                 Mesh *me= ob->data;
2341                 if (texflag)    *texflag = &me->texflag;
2342                 if (loc)                *loc = me->loc;
2343                 if (size)               *size = me->size;
2344                 if (rot)                *rot = me->rot;
2345                 break;
2346         }
2347         case ID_CU:
2348         {
2349                 Curve *cu= ob->data;
2350                 if (texflag)    *texflag = &cu->texflag;
2351                 if (loc)                *loc = cu->loc;
2352                 if (size)               *size = cu->size;
2353                 if (rot)                *rot = cu->rot;
2354                 break;
2355         }
2356         case ID_MB:
2357         {
2358                 MetaBall *mb= ob->data;
2359                 if (texflag)    *texflag = &mb->texflag;
2360                 if (loc)                *loc = mb->loc;
2361                 if (size)               *size = mb->size;
2362                 if (rot)                *rot = mb->rot;
2363                 break;
2364         }
2365         default:
2366                 return 0;
2367         }
2368         return 1;
2369 }