source/blender/blenkernel/intern/object.c

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