32a3ca2b7321bef21c47da8d4910372189a96164
[blender.git] / source / blender / blenkernel / intern / object.c
1 /*
2  * ***** BEGIN GPL LICENSE BLOCK *****
3  *
4  * This program is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU General Public License
6  * as published by the Free Software Foundation; either version 2
7  * of the License, or (at your option) any later version.
8  *
9  * This program is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12  * GNU General Public License for more details.
13  *
14  * You should have received a copy of the GNU General Public License
15  * along with this program; if not, write to the Free Software Foundation,
16  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
17  *
18  * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
19  * All rights reserved.
20  *
21  * The Original Code is: all of this file.
22  *
23  * Contributor(s): none yet.
24  *
25  * ***** END GPL LICENSE BLOCK *****
26  */
27
28 /** \file blender/blenkernel/intern/object.c
29  *  \ingroup bke
30  */
31
32
33 #include <string.h>
34 #include <math.h>
35 #include <stdio.h>                      
36
37 #include "MEM_guardedalloc.h"
38
39 #include "DNA_anim_types.h"
40 #include "DNA_armature_types.h"
41 #include "DNA_camera_types.h"
42 #include "DNA_constraint_types.h"
43 #include "DNA_group_types.h"
44 #include "DNA_key_types.h"
45 #include "DNA_lattice_types.h"
46 #include "DNA_material_types.h"
47 #include "DNA_meta_types.h"
48 #include "DNA_mesh_types.h"
49 #include "DNA_meshdata_types.h"
50 #include "DNA_movieclip_types.h"
51 #include "DNA_scene_types.h"
52 #include "DNA_screen_types.h"
53 #include "DNA_sequence_types.h"
54 #include "DNA_smoke_types.h"
55 #include "DNA_sound_types.h"
56 #include "DNA_space_types.h"
57 #include "DNA_view3d_types.h"
58 #include "DNA_world_types.h"
59
60 #include "BLI_blenlib.h"
61 #include "BLI_bpath.h"
62 #include "BLI_math.h"
63 #include "BLI_pbvh.h"
64 #include "BLI_utildefines.h"
65
66 #include "BKE_main.h"
67 #include "BKE_global.h"
68 #include "BKE_idprop.h"
69 #include "BKE_armature.h"
70 #include "BKE_action.h"
71 #include "BKE_bullet.h"
72 #include "BKE_colortools.h"
73 #include "BKE_deform.h"
74 #include "BKE_DerivedMesh.h"
75 #include "BKE_animsys.h"
76 #include "BKE_anim.h"
77 #include "BKE_constraint.h"
78 #include "BKE_curve.h"
79 #include "BKE_displist.h"
80 #include "BKE_effect.h"
81 #include "BKE_fcurve.h"
82 #include "BKE_group.h"
83 #include "BKE_icons.h"
84 #include "BKE_key.h"
85 #include "BKE_lamp.h"
86 #include "BKE_lattice.h"
87 #include "BKE_library.h"
88 #include "BKE_mesh.h"
89 #include "BKE_tessmesh.h"
90 #include "BKE_mball.h"
91 #include "BKE_modifier.h"
92 #include "BKE_node.h"
93 #include "BKE_object.h"
94 #include "BKE_paint.h"
95 #include "BKE_particle.h"
96 #include "BKE_pointcache.h"
97 #include "BKE_property.h"
98 #include "BKE_sca.h"
99 #include "BKE_scene.h"
100 #include "BKE_sequencer.h"
101 #include "BKE_speaker.h"
102 #include "BKE_softbody.h"
103 #include "BKE_material.h"
104 #include "BKE_camera.h"
105
106 #include "LBM_fluidsim.h"
107
108 #ifdef WITH_PYTHON
109 #include "BPY_extern.h"
110 #endif
111
112 #include "GPU_material.h"
113
114 /* Local function protos */
115 static void solve_parenting (Scene *scene, Object *ob, Object *par, float obmat[][4], float slowmat[][4], int simul);
116
117 float originmat[3][3];  /* after where_is_object(), can be used in other functions (bad!) */
118
119 void clear_workob(Object *workob)
120 {
121         memset(workob, 0, sizeof(Object));
122         
123         workob->size[0]= workob->size[1]= workob->size[2]= 1.0f;
124         workob->dscale[0]= workob->dscale[1]= workob->dscale[2]= 1.0f;
125         workob->rotmode= ROT_MODE_EUL;
126 }
127
128 void copy_baseflags(struct Scene *scene)
129 {
130         Base *base= scene->base.first;
131         
132         while (base) {
133                 base->object->flag= base->flag;
134                 base= base->next;
135         }
136 }
137
138 void copy_objectflags(struct Scene *scene)
139 {
140         Base *base= scene->base.first;
141         
142         while (base) {
143                 base->flag= base->object->flag;
144                 base= base->next;
145         }
146 }
147
148 void update_base_layer(struct Scene *scene, Object *ob)
149 {
150         Base *base= scene->base.first;
151
152         while (base) {
153                 if (base->object == ob) base->lay= ob->lay;
154                 base= base->next;
155         }
156 }
157
158 void object_free_particlesystems(Object *ob)
159 {
160         while (ob->particlesystem.first) {
161                 ParticleSystem *psys = ob->particlesystem.first;
162                 
163                 BLI_remlink(&ob->particlesystem,psys);
164                 
165                 psys_free(ob,psys);
166         }
167 }
168
169 void object_free_softbody(Object *ob)
170 {
171         if (ob->soft) {
172                 sbFree(ob->soft);
173                 ob->soft= NULL;
174         }
175 }
176
177 void object_free_bulletsoftbody(Object *ob)
178 {
179         if (ob->bsoft) {
180                 bsbFree(ob->bsoft);
181                 ob->bsoft= NULL;
182         }
183 }
184
185 void object_free_modifiers(Object *ob)
186 {
187         while (ob->modifiers.first) {
188                 ModifierData *md = ob->modifiers.first;
189                 
190                 BLI_remlink(&ob->modifiers, md);
191                 
192                 modifier_free(md);
193         }
194
195         /* particle modifiers were freed, so free the particlesystems as well */
196         object_free_particlesystems(ob);
197
198         /* same for softbody */
199         object_free_softbody(ob);
200 }
201
202 void object_link_modifiers(struct Object *ob, struct Object *from)
203 {
204         ModifierData *md;
205         object_free_modifiers(ob);
206
207         for (md=from->modifiers.first; md; md=md->next) {
208                 ModifierData *nmd = NULL;
209
210                 if (ELEM4(md->type, eModifierType_Hook, eModifierType_Softbody, eModifierType_ParticleInstance, eModifierType_Collision)) continue;
211
212                 nmd = modifier_new(md->type);
213                 modifier_copyData(md, nmd);
214                 BLI_addtail(&ob->modifiers, nmd);
215         }
216
217         copy_object_particlesystems(ob, from);
218         copy_object_softbody(ob, from);
219
220         // TODO: smoke?, cloth?
221 }
222
223 /* here we will collect all local displist stuff */
224 /* also (ab)used in depsgraph */
225 void object_free_display(Object *ob)
226 {
227         if (ob->derivedDeform) {
228                 ob->derivedDeform->needsFree = 1;
229                 ob->derivedDeform->release(ob->derivedDeform);
230                 ob->derivedDeform= NULL;
231         }
232         if (ob->derivedFinal) {
233                 ob->derivedFinal->needsFree = 1;
234                 ob->derivedFinal->release(ob->derivedFinal);
235                 ob->derivedFinal= NULL;
236         }
237         
238         freedisplist(&ob->disp);
239 }
240
241 void free_sculptsession_deformMats(SculptSession *ss)
242 {
243         if (ss->orig_cos) MEM_freeN(ss->orig_cos);
244         if (ss->deform_cos) MEM_freeN(ss->deform_cos);
245         if (ss->deform_imats) MEM_freeN(ss->deform_imats);
246
247         ss->orig_cos = NULL;
248         ss->deform_cos = NULL;
249         ss->deform_imats = NULL;
250 }
251
252 void free_sculptsession(Object *ob)
253 {
254         if (ob && ob->sculpt) {
255                 SculptSession *ss = ob->sculpt;
256                 DerivedMesh *dm= ob->derivedFinal;
257
258                 if (ss->pbvh)
259                         BLI_pbvh_free(ss->pbvh);
260                 if (dm && dm->getPBVH)
261                         dm->getPBVH(NULL, dm); /* signal to clear */
262
263                 if (ss->texcache)
264                         MEM_freeN(ss->texcache);
265
266                 if (ss->layer_co)
267                         MEM_freeN(ss->layer_co);
268
269                 if (ss->orig_cos)
270                         MEM_freeN(ss->orig_cos);
271                 if (ss->deform_cos)
272                         MEM_freeN(ss->deform_cos);
273                 if (ss->deform_imats)
274                         MEM_freeN(ss->deform_imats);
275
276                 MEM_freeN(ss);
277
278                 ob->sculpt = NULL;
279         }
280 }
281
282
283 /* do not free object itself */
284 void free_object(Object *ob)
285 {
286         int a;
287         
288         object_free_display(ob);
289         
290         /* disconnect specific data */
291         if (ob->data) {
292                 ID *id= ob->data;
293                 id->us--;
294                 if (id->us==0) {
295                         if (ob->type==OB_MESH) unlink_mesh(ob->data);
296                         else if (ob->type==OB_CURVE) unlink_curve(ob->data);
297                         else if (ob->type==OB_MBALL) unlink_mball(ob->data);
298                 }
299                 ob->data= NULL;
300         }
301         
302         for (a=0; a<ob->totcol; a++) {
303                 if (ob->mat[a]) ob->mat[a]->id.us--;
304         }
305         if (ob->mat) MEM_freeN(ob->mat);
306         if (ob->matbits) MEM_freeN(ob->matbits);
307         ob->mat= NULL;
308         ob->matbits= NULL;
309         if (ob->bb) MEM_freeN(ob->bb); 
310         ob->bb= NULL;
311         if (ob->adt) BKE_free_animdata((ID *)ob);
312         if (ob->poselib) ob->poselib->id.us--;
313         if (ob->gpd) ((ID *)ob->gpd)->us--;
314         if (ob->defbase.first)
315                 BLI_freelistN(&ob->defbase);
316         if (ob->pose)
317                 free_pose(ob->pose);
318         if (ob->mpath)
319                 animviz_free_motionpath(ob->mpath);
320         free_properties(&ob->prop);
321         object_free_modifiers(ob);
322         
323         free_sensors(&ob->sensors);
324         free_controllers(&ob->controllers);
325         free_actuators(&ob->actuators);
326         
327         free_constraints(&ob->constraints);
328         
329         free_partdeflect(ob->pd);
330
331         if (ob->soft) sbFree(ob->soft);
332         if (ob->bsoft) bsbFree(ob->bsoft);
333         if (ob->gpulamp.first) GPU_lamp_free(ob);
334
335         free_sculptsession(ob);
336
337         if (ob->pc_ids.first) BLI_freelistN(&ob->pc_ids);
338 }
339
340 static void unlink_object__unlinkModifierLinks(void *userData, Object *ob, Object **obpoin)
341 {
342         Object *unlinkOb = userData;
343
344         if (*obpoin==unlinkOb) {
345                 *obpoin = NULL;
346                 ob->recalc |= OB_RECALC_OB|OB_RECALC_DATA|OB_RECALC_TIME; // XXX: should this just be OB_RECALC_DATA?
347         }
348 }
349
350 void unlink_object(Object *ob)
351 {
352         Main *bmain= G.main;
353         Object *obt;
354         Material *mat;
355         World *wrld;
356         bScreen *sc;
357         Scene *sce;
358         Curve *cu;
359         Tex *tex;
360         Group *group;
361         Camera *camera;
362         bConstraint *con;
363         //bActionStrip *strip; // XXX animsys 
364         ModifierData *md;
365         ARegion *ar;
366         RegionView3D *rv3d;
367         int a, found;
368         
369         unlink_controllers(&ob->controllers);
370         unlink_actuators(&ob->actuators);
371         
372         /* check all objects: parents en bevels and fields, also from libraries */
373         // FIXME: need to check all animation blocks (drivers)
374         obt= bmain->object.first;
375         while (obt) {
376                 if (obt->proxy==ob)
377                         obt->proxy= NULL;
378                 if (obt->proxy_from==ob) {
379                         obt->proxy_from= NULL;
380                         obt->recalc |= OB_RECALC_OB;
381                 }
382                 if (obt->proxy_group==ob)
383                         obt->proxy_group= NULL;
384                 
385                 if (obt->parent==ob) {
386                         obt->parent= NULL;
387                         obt->recalc |= OB_RECALC_OB|OB_RECALC_DATA|OB_RECALC_TIME;
388                 }
389                 
390                 modifiers_foreachObjectLink(obt, unlink_object__unlinkModifierLinks, ob);
391                 
392                 if ELEM(obt->type, OB_CURVE, OB_FONT) {
393                         cu= obt->data;
394
395                         if (cu->bevobj==ob) {
396                                 cu->bevobj= NULL;
397                                 obt->recalc |= OB_RECALC_OB|OB_RECALC_DATA|OB_RECALC_TIME;
398                         }
399                         if (cu->taperobj==ob) {
400                                 cu->taperobj= NULL;
401                                 obt->recalc |= OB_RECALC_OB|OB_RECALC_DATA|OB_RECALC_TIME;
402                         }
403                         if (cu->textoncurve==ob) {
404                                 cu->textoncurve= NULL;
405                                 obt->recalc |= OB_RECALC_OB|OB_RECALC_DATA|OB_RECALC_TIME;
406                         }
407                 }
408                 else if (obt->type==OB_ARMATURE && obt->pose) {
409                         bPoseChannel *pchan;
410                         for (pchan= obt->pose->chanbase.first; pchan; pchan= pchan->next) {
411                                 for (con = pchan->constraints.first; con; con=con->next) {
412                                         bConstraintTypeInfo *cti= constraint_get_typeinfo(con);
413                                         ListBase targets = {NULL, NULL};
414                                         bConstraintTarget *ct;
415                                         
416                                         if (cti && cti->get_constraint_targets) {
417                                                 cti->get_constraint_targets(con, &targets);
418                                                 
419                                                 for (ct= targets.first; ct; ct= ct->next) {
420                                                         if (ct->tar == ob) {
421                                                                 ct->tar = NULL;
422                                                                 ct->subtarget[0]= '\0';
423                                                                 obt->recalc |= OB_RECALC_DATA;
424                                                         }
425                                                 }
426                                                 
427                                                 if (cti->flush_constraint_targets)
428                                                         cti->flush_constraint_targets(con, &targets, 0);
429                                         }
430                                 }
431                                 if (pchan->custom==ob)
432                                         pchan->custom= NULL;
433                         }
434                 } 
435                 else if (ELEM(OB_MBALL, ob->type, obt->type)) {
436                         if (is_mball_basis_for (obt, ob))
437                                 obt->recalc|= OB_RECALC_DATA;
438                 }
439                 
440                 sca_remove_ob_poin(obt, ob);
441                 
442                 for (con = obt->constraints.first; con; con=con->next) {
443                         bConstraintTypeInfo *cti= constraint_get_typeinfo(con);
444                         ListBase targets = {NULL, NULL};
445                         bConstraintTarget *ct;
446                         
447                         if (cti && cti->get_constraint_targets) {
448                                 cti->get_constraint_targets(con, &targets);
449                                 
450                                 for (ct= targets.first; ct; ct= ct->next) {
451                                         if (ct->tar == ob) {
452                                                 ct->tar = NULL;
453                                                 ct->subtarget[0]= '\0';
454                                                 obt->recalc |= OB_RECALC_DATA;
455                                         }
456                                 }
457                                 
458                                 if (cti->flush_constraint_targets)
459                                         cti->flush_constraint_targets(con, &targets, 0);
460                         }
461                 }
462                 
463                 /* object is deflector or field */
464                 if (ob->pd) {
465                         if (obt->soft)
466                                 obt->recalc |= OB_RECALC_DATA;
467
468                         /* cloth */
469                         for (md=obt->modifiers.first; md; md=md->next)
470                                 if (md->type == eModifierType_Cloth)
471                                         obt->recalc |= OB_RECALC_DATA;
472                 }
473                 
474                 /* strips */
475 #if 0 // XXX old animation system
476                 for (strip= obt->nlastrips.first; strip; strip= strip->next) {
477                         if (strip->object==ob)
478                                 strip->object= NULL;
479                         
480                         if (strip->modifiers.first) {
481                                 bActionModifier *amod;
482                                 for (amod= strip->modifiers.first; amod; amod= amod->next)
483                                         if (amod->ob==ob)
484                                                 amod->ob= NULL;
485                         }
486                 }
487 #endif // XXX old animation system
488
489                 /* particle systems */
490                 if (obt->particlesystem.first) {
491                         ParticleSystem *tpsys= obt->particlesystem.first;
492                         for (; tpsys; tpsys=tpsys->next) {
493                                 BoidState *state = NULL;
494                                 BoidRule *rule = NULL;
495
496                                 ParticleTarget *pt = tpsys->targets.first;
497                                 for (; pt; pt=pt->next) {
498                                         if (pt->ob==ob) {
499                                                 pt->ob = NULL;
500                                                 obt->recalc |= OB_RECALC_DATA;
501                                                 break;
502                                         }
503                                 }
504
505                                 if (tpsys->target_ob==ob) {
506                                         tpsys->target_ob= NULL;
507                                         obt->recalc |= OB_RECALC_DATA;
508                                 }
509
510                                 if (tpsys->part->dup_ob==ob)
511                                         tpsys->part->dup_ob= NULL;
512
513                                 if (tpsys->part->phystype==PART_PHYS_BOIDS) {
514                                         ParticleData *pa;
515                                         BoidParticle *bpa;
516                                         int p;
517
518                                         for (p=0,pa=tpsys->particles; p<tpsys->totpart; p++,pa++) {
519                                                 bpa = pa->boid;
520                                                 if (bpa->ground == ob)
521                                                         bpa->ground = NULL;
522                                         }
523                                 }
524                                 if (tpsys->part->boids) {
525                                         for (state = tpsys->part->boids->states.first; state; state=state->next) {
526                                                 for (rule = state->rules.first; rule; rule=rule->next) {
527                                                         if (rule->type==eBoidRuleType_Avoid) {
528                                                                 BoidRuleGoalAvoid *gabr = (BoidRuleGoalAvoid*)rule;
529                                                                 if (gabr->ob==ob)
530                                                                         gabr->ob= NULL;
531                                                         }
532                                                         else if (rule->type==eBoidRuleType_FollowLeader) {
533                                                                 BoidRuleFollowLeader *flbr = (BoidRuleFollowLeader*)rule;
534                                                                 if (flbr->ob==ob)
535                                                                         flbr->ob= NULL;
536                                                         }
537                                                 }
538                                         }
539                                 }
540                         }
541                         if (ob->pd)
542                                 obt->recalc |= OB_RECALC_DATA;
543                 }
544
545                 obt= obt->id.next;
546         }
547         
548         /* materials */
549         mat= bmain->mat.first;
550         while (mat) {
551         
552                 for (a=0; a<MAX_MTEX; a++) {
553                         if (mat->mtex[a] && ob==mat->mtex[a]->object) {
554                                 /* actually, test for lib here... to do */
555                                 mat->mtex[a]->object= NULL;
556                         }
557                 }
558
559                 mat= mat->id.next;
560         }
561         
562         /* textures */
563         for (tex= bmain->tex.first; tex; tex= tex->id.next) {
564                 if (tex->env && (ob==tex->env->object)) tex->env->object= NULL;
565                 if (tex->pd  && (ob==tex->pd->object))  tex->pd->object= NULL;
566                 if (tex->vd  && (ob==tex->vd->object))  tex->vd->object= NULL;
567         }
568
569         /* worlds */
570         wrld= bmain->world.first;
571         while (wrld) {
572                 if (wrld->id.lib==NULL) {
573                         for (a=0; a<MAX_MTEX; a++) {
574                                 if (wrld->mtex[a] && ob==wrld->mtex[a]->object)
575                                         wrld->mtex[a]->object= NULL;
576                         }
577                 }
578                 
579                 wrld= wrld->id.next;
580         }
581                 
582         /* scenes */
583         sce= bmain->scene.first;
584         while (sce) {
585                 if (sce->id.lib==NULL) {
586                         if (sce->camera==ob) sce->camera= NULL;
587                         if (sce->toolsettings->skgen_template==ob) sce->toolsettings->skgen_template = NULL;
588                         if (sce->toolsettings->particle.object==ob) sce->toolsettings->particle.object= NULL;
589
590 #ifdef DURIAN_CAMERA_SWITCH
591                         {
592                                 TimeMarker *m;
593
594                                 for (m= sce->markers.first; m; m= m->next) {
595                                         if (m->camera==ob)
596                                                 m->camera= NULL;
597                                 }
598                         }
599 #endif
600                         if (sce->ed) {
601                                 Sequence *seq;
602                                 SEQ_BEGIN(sce->ed, seq)
603                                         if (seq->scene_camera==ob) {
604                                                 seq->scene_camera= NULL;
605                                         }
606                                 SEQ_END
607                         }
608                 }
609
610                 sce= sce->id.next;
611         }
612         
613         /* screens */
614         sc= bmain->screen.first;
615         while (sc) {
616                 ScrArea *sa= sc->areabase.first;
617                 while (sa) {
618                         SpaceLink *sl;
619
620                         for (sl= sa->spacedata.first; sl; sl= sl->next) {
621                                 if (sl->spacetype==SPACE_VIEW3D) {
622                                         View3D *v3d= (View3D*) sl;
623
624                                         found= 0;
625                                         if (v3d->camera==ob) {
626                                                 v3d->camera= NULL;
627                                                 found= 1;
628                                         }
629                                         if (v3d->localvd && v3d->localvd->camera==ob ) {
630                                                 v3d->localvd->camera= NULL;
631                                                 found += 2;
632                                         }
633
634                                         if (found) {
635                                                 if (sa->spacetype == SPACE_VIEW3D) {
636                                                         for (ar= sa->regionbase.first; ar; ar= ar->next) {
637                                                                 if (ar->regiontype==RGN_TYPE_WINDOW) {
638                                                                         rv3d= (RegionView3D *)ar->regiondata;
639                                                                         if (found == 1 || found == 3) {
640                                                                                 if (rv3d->persp == RV3D_CAMOB)
641                                                                                         rv3d->persp= RV3D_PERSP;
642                                                                         }
643                                                                         if (found == 2 || found == 3) {
644                                                                                 if (rv3d->localvd && rv3d->localvd->persp == RV3D_CAMOB)
645                                                                                         rv3d->localvd->persp= RV3D_PERSP;
646                                                                         }
647                                                                 }
648                                                         }
649                                                 }
650                                         }
651                                 }
652                                 else if (sl->spacetype==SPACE_OUTLINER) {
653                                         SpaceOops *so= (SpaceOops *)sl;
654
655                                         if (so->treestore) {
656                                                 TreeStoreElem *tselem= so->treestore->data;
657                                                 int a;
658                                                 for (a=0; a<so->treestore->usedelem; a++, tselem++) {
659                                                         if (tselem->id==(ID *)ob) tselem->id= NULL;
660                                                 }
661                                         }
662                                 }
663                                 else if (sl->spacetype==SPACE_BUTS) {
664                                         SpaceButs *sbuts= (SpaceButs *)sl;
665
666                                         if (sbuts->pinid==(ID *)ob) {
667                                                 sbuts->flag&= ~SB_PIN_CONTEXT;
668                                                 sbuts->pinid= NULL;
669                                         }
670                                 }
671                         }
672
673                         sa= sa->next;
674                 }
675                 sc= sc->id.next;
676         }
677
678         /* groups */
679         group= bmain->group.first;
680         while (group) {
681                 rem_from_group(group, ob, NULL, NULL);
682                 group= group->id.next;
683         }
684         
685         /* cameras */
686         camera= bmain->camera.first;
687         while (camera) {
688                 if (camera->dof_ob==ob) {
689                         camera->dof_ob = NULL;
690                 }
691                 camera= camera->id.next;
692         }
693 }
694
695 int exist_object(Object *obtest)
696 {
697         Object *ob;
698         
699         if (obtest==NULL) return 0;
700         
701         ob= G.main->object.first;
702         while (ob) {
703                 if (ob==obtest) return 1;
704                 ob= ob->id.next;
705         }
706         return 0;
707 }
708
709 /* *************************************************** */
710
711 static void *add_obdata_from_type(int type)
712 {
713         switch (type) {
714         case OB_MESH: return add_mesh("Mesh");
715         case OB_CURVE: return add_curve("Curve", OB_CURVE);
716         case OB_SURF: return add_curve("Surf", OB_SURF);
717         case OB_FONT: return add_curve("Text", OB_FONT);
718         case OB_MBALL: return add_mball("Meta");
719         case OB_CAMERA: return add_camera("Camera");
720         case OB_LAMP: return add_lamp("Lamp");
721         case OB_LATTICE: return add_lattice("Lattice");
722         case OB_ARMATURE: return add_armature("Armature");
723         case OB_SPEAKER: return add_speaker("Speaker");
724         case OB_EMPTY: return NULL;
725         default:
726                 printf("add_obdata_from_type: Internal error, bad type: %d\n", type);
727                 return NULL;
728         }
729 }
730
731 static const char *get_obdata_defname(int type)
732 {
733         switch (type) {
734         case OB_MESH: return "Mesh";
735         case OB_CURVE: return "Curve";
736         case OB_SURF: return "Surf";
737         case OB_FONT: return "Text";
738         case OB_MBALL: return "Mball";
739         case OB_CAMERA: return "Camera";
740         case OB_LAMP: return "Lamp";
741         case OB_LATTICE: return "Lattice";
742         case OB_ARMATURE: return "Armature";
743         case OB_SPEAKER: return "Speaker";
744         case OB_EMPTY: return "Empty";
745         default:
746                 printf("get_obdata_defname: Internal error, bad type: %d\n", type);
747                 return "Empty";
748         }
749 }
750
751 /* more general add: creates minimum required data, but without vertices etc. */
752 Object *add_only_object(int type, const char *name)
753 {
754         Object *ob;
755
756         ob= alloc_libblock(&G.main->object, ID_OB, name);
757
758         /* default object vars */
759         ob->type= type;
760         
761         ob->col[0]= ob->col[1]= ob->col[2]= 1.0;
762         ob->col[3]= 1.0;
763         
764         ob->size[0]= ob->size[1]= ob->size[2]= 1.0;
765         ob->dscale[0]= ob->dscale[1]= ob->dscale[2]= 1.0;
766         
767         /* objects should default to having Euler XYZ rotations, 
768          * but rotations default to quaternions 
769          */
770         ob->rotmode= ROT_MODE_EUL;
771
772         unit_axis_angle(ob->rotAxis, &ob->rotAngle);
773         unit_axis_angle(ob->drotAxis, &ob->drotAngle);
774
775         unit_qt(ob->quat);
776         unit_qt(ob->dquat);
777
778         /* rotation locks should be 4D for 4 component rotations by default... */
779         ob->protectflag = OB_LOCK_ROT4D;
780         
781         unit_m4(ob->constinv);
782         unit_m4(ob->parentinv);
783         unit_m4(ob->obmat);
784         ob->dt= OB_TEXTURE;
785         ob->empty_drawtype= OB_PLAINAXES;
786         ob->empty_drawsize= 1.0;
787
788         if (type==OB_CAMERA || type==OB_LAMP || type==OB_SPEAKER) {
789                 ob->trackflag= OB_NEGZ;
790                 ob->upflag= OB_POSY;
791         }
792         else {
793                 ob->trackflag= OB_POSY;
794                 ob->upflag= OB_POSZ;
795         }
796         
797         ob->dupon= 1; ob->dupoff= 0;
798         ob->dupsta= 1; ob->dupend= 100;
799         ob->dupfacesca = 1.0;
800
801         /* Game engine defaults*/
802         ob->mass= ob->inertia= 1.0f;
803         ob->formfactor= 0.4f;
804         ob->damping= 0.04f;
805         ob->rdamping= 0.1f;
806         ob->anisotropicFriction[0] = 1.0f;
807         ob->anisotropicFriction[1] = 1.0f;
808         ob->anisotropicFriction[2] = 1.0f;
809         ob->gameflag= OB_PROP|OB_COLLISION;
810         ob->margin = 0.0;
811         ob->init_state=1;
812         ob->state=1;
813         /* ob->pad3 == Contact Processing Threshold */
814         ob->m_contactProcessingThreshold = 1.;
815         ob->obstacleRad = 1.;
816         
817         /* NT fluid sim defaults */
818         ob->fluidsimSettings = NULL;
819
820         ob->pc_ids.first = ob->pc_ids.last = NULL;
821         
822         /* Animation Visualisation defaults */
823         animviz_settings_init(&ob->avs);
824
825         return ob;
826 }
827
828 /* general add: to scene, with layer from area and default name */
829 /* creates minimum required data, but without vertices etc. */
830 Object *add_object(struct Scene *scene, int type)
831 {
832         Object *ob;
833         Base *base;
834         char name[MAX_ID_NAME];
835
836         BLI_strncpy(name, get_obdata_defname(type), sizeof(name));
837         ob = add_only_object(type, name);
838
839         ob->data= add_obdata_from_type(type);
840
841         ob->lay= scene->lay;
842         
843         base= scene_add_base(scene, ob);
844         scene_select_base(scene, base);
845         ob->recalc |= OB_RECALC_OB|OB_RECALC_DATA|OB_RECALC_TIME;
846
847         return ob;
848 }
849
850 SoftBody *copy_softbody(SoftBody *sb)
851 {
852         SoftBody *sbn;
853         
854         if (sb==NULL) return(NULL);
855         
856         sbn= MEM_dupallocN(sb);
857         sbn->totspring= sbn->totpoint= 0;
858         sbn->bpoint= NULL;
859         sbn->bspring= NULL;
860         
861         sbn->keys= NULL;
862         sbn->totkey= sbn->totpointkey= 0;
863         
864         sbn->scratch= NULL;
865
866         sbn->pointcache= BKE_ptcache_copy_list(&sbn->ptcaches, &sb->ptcaches);
867
868         if (sb->effector_weights)
869                 sbn->effector_weights = MEM_dupallocN(sb->effector_weights);
870
871         return sbn;
872 }
873
874 BulletSoftBody *copy_bulletsoftbody(BulletSoftBody *bsb)
875 {
876         BulletSoftBody *bsbn;
877
878         if (bsb == NULL)
879                 return NULL;
880         bsbn = MEM_dupallocN(bsb);
881         /* no pointer in this structure yet */
882         return bsbn;
883 }
884
885 static ParticleSystem *copy_particlesystem(ParticleSystem *psys)
886 {
887         ParticleSystem *psysn;
888         ParticleData *pa;
889         int p;
890
891         psysn= MEM_dupallocN(psys);
892         psysn->particles= MEM_dupallocN(psys->particles);
893         psysn->child= MEM_dupallocN(psys->child);
894
895         if (psys->part->type == PART_HAIR) {
896                 for (p=0, pa=psysn->particles; p<psysn->totpart; p++, pa++)
897                         pa->hair = MEM_dupallocN(pa->hair);
898         }
899
900         if (psysn->particles && (psysn->particles->keys || psysn->particles->boid)) {
901                 ParticleKey *key = psysn->particles->keys;
902                 BoidParticle *boid = psysn->particles->boid;
903
904                 if (key)
905                         key = MEM_dupallocN(key);
906                 
907                 if (boid)
908                         boid = MEM_dupallocN(boid);
909                 
910                 for (p=0, pa=psysn->particles; p<psysn->totpart; p++, pa++) {
911                         if (boid)
912                                 pa->boid = boid++;
913                         if (key) {
914                                 pa->keys = key;
915                                 key += pa->totkey;
916                         }
917                 }
918         }
919
920         if (psys->clmd) {
921                 psysn->clmd = (ClothModifierData *)modifier_new(eModifierType_Cloth);
922                 modifier_copyData((ModifierData*)psys->clmd, (ModifierData*)psysn->clmd);
923                 psys->hair_in_dm = psys->hair_out_dm = NULL;
924         }
925
926         BLI_duplicatelist(&psysn->targets, &psys->targets);
927
928         psysn->pathcache= NULL;
929         psysn->childcache= NULL;
930         psysn->edit= NULL;
931         psysn->frand= NULL;
932         psysn->pdd= NULL;
933         psysn->effectors= NULL;
934         
935         psysn->pathcachebufs.first = psysn->pathcachebufs.last = NULL;
936         psysn->childcachebufs.first = psysn->childcachebufs.last = NULL;
937         psysn->renderdata = NULL;
938         
939         psysn->pointcache= BKE_ptcache_copy_list(&psysn->ptcaches, &psys->ptcaches);
940
941         /* XXX - from reading existing code this seems correct but intended usage of
942          * pointcache should /w cloth should be added in 'ParticleSystem' - campbell */
943         if (psysn->clmd) {
944                 psysn->clmd->point_cache= psysn->pointcache;
945         }
946
947         id_us_plus((ID *)psysn->part);
948
949         return psysn;
950 }
951
952 void copy_object_particlesystems(Object *obn, Object *ob)
953 {
954         ParticleSystem *psys, *npsys;
955         ModifierData *md;
956
957         obn->particlesystem.first= obn->particlesystem.last= NULL;
958         for (psys=ob->particlesystem.first; psys; psys=psys->next) {
959                 npsys= copy_particlesystem(psys);
960
961                 BLI_addtail(&obn->particlesystem, npsys);
962
963                 /* need to update particle modifiers too */
964                 for (md=obn->modifiers.first; md; md=md->next) {
965                         if (md->type==eModifierType_ParticleSystem) {
966                                 ParticleSystemModifierData *psmd= (ParticleSystemModifierData*)md;
967                                 if (psmd->psys==psys)
968                                         psmd->psys= npsys;
969                         }
970                         else if (md->type==eModifierType_DynamicPaint) {
971                                 DynamicPaintModifierData *pmd= (DynamicPaintModifierData*)md;
972                                 if (pmd->brush) {
973                                         if (pmd->brush->psys==psys) {
974                                                 pmd->brush->psys= npsys;
975                                         }
976                                 }
977                         }
978                         else if (md->type==eModifierType_Smoke) {
979                                 SmokeModifierData *smd = (SmokeModifierData*) md;
980                                 
981                                 if (smd->type==MOD_SMOKE_TYPE_FLOW) {
982                                         if (smd->flow) {
983                                                 if (smd->flow->psys == psys)
984                                                         smd->flow->psys= npsys;
985                                         }
986                                 }
987                         }
988                 }
989         }
990 }
991
992 void copy_object_softbody(Object *obn, Object *ob)
993 {
994         if (ob->soft)
995                 obn->soft= copy_softbody(ob->soft);
996 }
997
998 static void copy_object_pose(Object *obn, Object *ob)
999 {
1000         bPoseChannel *chan;
1001         
1002         /* note: need to clear obn->pose pointer first, so that copy_pose works (otherwise there's a crash) */
1003         obn->pose= NULL;
1004         copy_pose(&obn->pose, ob->pose, 1);     /* 1 = copy constraints */
1005
1006         for (chan = obn->pose->chanbase.first; chan; chan=chan->next) {
1007                 bConstraint *con;
1008                 
1009                 chan->flag &= ~(POSE_LOC|POSE_ROT|POSE_SIZE);
1010                 
1011                 for (con= chan->constraints.first; con; con= con->next) {
1012                         bConstraintTypeInfo *cti= constraint_get_typeinfo(con);
1013                         ListBase targets = {NULL, NULL};
1014                         bConstraintTarget *ct;
1015                         
1016                         if (cti && cti->get_constraint_targets) {
1017                                 cti->get_constraint_targets(con, &targets);
1018                                 
1019                                 for (ct= targets.first; ct; ct= ct->next) {
1020                                         if (ct->tar == ob)
1021                                                 ct->tar = obn;
1022                                 }
1023                                 
1024                                 if (cti->flush_constraint_targets)
1025                                         cti->flush_constraint_targets(con, &targets, 0);
1026                         }
1027                 }
1028         }
1029 }
1030
1031 static int object_pose_context(Object *ob)
1032 {
1033         if (    (ob) &&
1034                 (ob->type == OB_ARMATURE) &&
1035                 (ob->pose) &&
1036                 (ob->mode & OB_MODE_POSE)
1037         ) {
1038                 return 1;
1039         }
1040         else {
1041                 return 0;
1042         }
1043 }
1044
1045 Object *object_pose_armature_get(Object *ob)
1046 {
1047         if (ob==NULL)
1048                 return NULL;
1049
1050         if (object_pose_context(ob))
1051                 return ob;
1052
1053         ob= modifiers_isDeformedByArmature(ob);
1054
1055         if (object_pose_context(ob))
1056                 return ob;
1057
1058         return NULL;
1059 }
1060
1061 static void copy_object_transform(Object *ob_tar, Object *ob_src)
1062 {
1063         copy_v3_v3(ob_tar->loc, ob_src->loc);
1064         copy_v3_v3(ob_tar->rot, ob_src->rot);
1065         copy_v3_v3(ob_tar->quat, ob_src->quat);
1066         copy_v3_v3(ob_tar->rotAxis, ob_src->rotAxis);
1067         ob_tar->rotAngle= ob_src->rotAngle;
1068         ob_tar->rotmode= ob_src->rotmode;
1069         copy_v3_v3(ob_tar->size, ob_src->size);
1070 }
1071
1072 Object *copy_object(Object *ob)
1073 {
1074         Object *obn;
1075         ModifierData *md;
1076         int a;
1077
1078         obn= copy_libblock(&ob->id);
1079         
1080         if (ob->totcol) {
1081                 obn->mat= MEM_dupallocN(ob->mat);
1082                 obn->matbits= MEM_dupallocN(ob->matbits);
1083                 obn->totcol= ob->totcol;
1084         }
1085         
1086         if (ob->bb) obn->bb= MEM_dupallocN(ob->bb);
1087         obn->flag &= ~OB_FROMGROUP;
1088         
1089         obn->modifiers.first = obn->modifiers.last= NULL;
1090         
1091         for (md=ob->modifiers.first; md; md=md->next) {
1092                 ModifierData *nmd = modifier_new(md->type);
1093                 BLI_strncpy(nmd->name, md->name, sizeof(nmd->name));
1094                 modifier_copyData(md, nmd);
1095                 BLI_addtail(&obn->modifiers, nmd);
1096         }
1097
1098         obn->prop.first = obn->prop.last = NULL;
1099         copy_properties(&obn->prop, &ob->prop);
1100         
1101         copy_sensors(&obn->sensors, &ob->sensors);
1102         copy_controllers(&obn->controllers, &ob->controllers);
1103         copy_actuators(&obn->actuators, &ob->actuators);
1104         
1105         if (ob->pose) {
1106                 copy_object_pose(obn, ob);
1107                 /* backwards compat... non-armatures can get poses in older files? */
1108                 if (ob->type==OB_ARMATURE)
1109                         armature_rebuild_pose(obn, obn->data);
1110         }
1111         defgroup_copy_list(&obn->defbase, &ob->defbase);
1112         copy_constraints(&obn->constraints, &ob->constraints, TRUE);
1113
1114         obn->mode = 0;
1115         obn->sculpt = NULL;
1116
1117         /* increase user numbers */
1118         id_us_plus((ID *)obn->data);
1119         id_us_plus((ID *)obn->gpd);
1120         id_lib_extern((ID *)obn->dup_group);
1121
1122         for (a=0; a<obn->totcol; a++) id_us_plus((ID *)obn->mat[a]);
1123         
1124         obn->disp.first= obn->disp.last= NULL;
1125         
1126         if (ob->pd) {
1127                 obn->pd= MEM_dupallocN(ob->pd);
1128                 if (obn->pd->tex)
1129                         id_us_plus(&(obn->pd->tex->id));
1130                 if (obn->pd->rng)
1131                         obn->pd->rng = MEM_dupallocN(ob->pd->rng);
1132         }
1133         obn->soft= copy_softbody(ob->soft);
1134         obn->bsoft = copy_bulletsoftbody(ob->bsoft);
1135
1136         copy_object_particlesystems(obn, ob);
1137         
1138         obn->derivedDeform = NULL;
1139         obn->derivedFinal = NULL;
1140
1141         obn->gpulamp.first = obn->gpulamp.last = NULL;
1142         obn->pc_ids.first = obn->pc_ids.last = NULL;
1143
1144         obn->mpath= NULL;
1145         
1146         return obn;
1147 }
1148
1149 static void extern_local_object(Object *ob)
1150 {
1151         ParticleSystem *psys;
1152
1153         id_lib_extern((ID *)ob->data);
1154         id_lib_extern((ID *)ob->dup_group);
1155         id_lib_extern((ID *)ob->poselib);
1156         id_lib_extern((ID *)ob->gpd);
1157
1158         extern_local_matarar(ob->mat, ob->totcol);
1159
1160         for (psys=ob->particlesystem.first; psys; psys=psys->next)
1161                 id_lib_extern((ID *)psys->part);
1162 }
1163
1164 void make_local_object(Object *ob)
1165 {
1166         Main *bmain= G.main;
1167         Scene *sce;
1168         Base *base;
1169         int is_local= FALSE, is_lib= FALSE;
1170
1171         /* - only lib users: do nothing
1172          * - only local users: set flag
1173          * - mixed: make copy
1174          */
1175
1176         if (ob->id.lib==NULL) return;
1177         
1178         ob->proxy= ob->proxy_from= NULL;
1179         
1180         if (ob->id.us==1) {
1181                 id_clear_lib_data(bmain, &ob->id);
1182                 extern_local_object(ob);
1183         }
1184         else {
1185                 for (sce= bmain->scene.first; sce && ELEM(0, is_lib, is_local); sce= sce->id.next) {
1186                         if (object_in_scene(ob, sce)) {
1187                                 if (sce->id.lib) is_lib= TRUE;
1188                                 else is_local= TRUE;
1189                         }
1190                 }
1191
1192                 if (is_local && is_lib == FALSE) {
1193                         id_clear_lib_data(bmain, &ob->id);
1194                         extern_local_object(ob);
1195                 }
1196                 else if (is_local && is_lib) {
1197                         Object *ob_new= copy_object(ob);
1198
1199                         ob_new->id.us= 0;
1200                         
1201                         /* Remap paths of new ID using old library as base. */
1202                         BKE_id_lib_local_paths(bmain, ob->id.lib, &ob_new->id);
1203
1204                         sce= bmain->scene.first;
1205                         while (sce) {
1206                                 if (sce->id.lib==NULL) {
1207                                         base= sce->base.first;
1208                                         while (base) {
1209                                                 if (base->object==ob) {
1210                                                         base->object= ob_new;
1211                                                         ob_new->id.us++;
1212                                                         ob->id.us--;
1213                                                 }
1214                                                 base= base->next;
1215                                         }
1216                                 }
1217                                 sce= sce->id.next;
1218                         }
1219                 }
1220         }
1221 }
1222
1223 /*
1224  * Returns true if the Object is a from an external blend file (libdata)
1225  */
1226 int object_is_libdata(Object *ob)
1227 {
1228         if (!ob) return 0;
1229         if (ob->proxy) return 0;
1230         if (ob->id.lib) return 1;
1231         return 0;
1232 }
1233
1234 /* Returns true if the Object data is a from an external blend file (libdata) */
1235 int object_data_is_libdata(Object *ob)
1236 {
1237         if (!ob) return 0;
1238         if (ob->proxy && (ob->data==NULL || ((ID *)ob->data)->lib==NULL)) return 0;
1239         if (ob->id.lib) return 1;
1240         if (ob->data==NULL) return 0;
1241         if (((ID *)ob->data)->lib) return 1;
1242
1243         return 0;
1244 }
1245
1246 /* *************** PROXY **************** */
1247
1248 /* when you make proxy, ensure the exposed layers are extern */
1249 static void armature_set_id_extern(Object *ob)
1250 {
1251         bArmature *arm= ob->data;
1252         bPoseChannel *pchan;
1253         unsigned int lay= arm->layer_protected;
1254         
1255         for (pchan = ob->pose->chanbase.first; pchan; pchan=pchan->next) {
1256                 if (!(pchan->bone->layer & lay))
1257                         id_lib_extern((ID *)pchan->custom);
1258         }
1259                         
1260 }
1261
1262 void object_copy_proxy_drivers(Object *ob, Object *target)
1263 {
1264         if ((target->adt) && (target->adt->drivers.first)) {
1265                 FCurve *fcu;
1266                 
1267                 /* add new animdata block */
1268                 if (!ob->adt)
1269                         ob->adt= BKE_id_add_animdata(&ob->id);
1270                 
1271                 /* make a copy of all the drivers (for now), then correct any links that need fixing */
1272                 free_fcurves(&ob->adt->drivers);
1273                 copy_fcurves(&ob->adt->drivers, &target->adt->drivers);
1274                 
1275                 for (fcu= ob->adt->drivers.first; fcu; fcu= fcu->next) {
1276                         ChannelDriver *driver= fcu->driver;
1277                         DriverVar *dvar;
1278                         
1279                         for (dvar= driver->variables.first; dvar; dvar= dvar->next) {
1280                                 /* all drivers */
1281                                 DRIVER_TARGETS_LOOPER(dvar) 
1282                                 {
1283                                         if (dtar->id) {
1284                                                 if ((Object *)dtar->id == target)
1285                                                         dtar->id= (ID *)ob;
1286                                                 else {
1287                                                         /* only on local objects because this causes indirect links a -> b -> c,blend to point directly to a.blend
1288                                                          * when a.blend has a proxy thats linked into c.blend  */
1289                                                         if (ob->id.lib==NULL)
1290                                                                 id_lib_extern((ID *)dtar->id);
1291                                                 }
1292                                         }
1293                                 }
1294                                 DRIVER_TARGETS_LOOPER_END
1295                         }
1296                 }
1297         }
1298 }
1299
1300 /* proxy rule: lib_object->proxy_from == the one we borrow from, set temporally while object_update */
1301 /*             local_object->proxy == pointer to library object, saved in files and read */
1302 /*             local_object->proxy_group == pointer to group dupli-object, saved in files and read */
1303
1304 void object_make_proxy(Object *ob, Object *target, Object *gob)
1305 {
1306         /* paranoia checks */
1307         if (ob->id.lib || target->id.lib==NULL) {
1308                 printf("cannot make proxy\n");
1309                 return;
1310         }
1311         
1312         ob->proxy= target;
1313         ob->proxy_group= gob;
1314         id_lib_extern(&target->id);
1315         
1316         ob->recalc= target->recalc= OB_RECALC_OB|OB_RECALC_DATA|OB_RECALC_TIME;
1317         
1318         /* copy transform
1319          * - gob means this proxy comes from a group, just apply the matrix
1320          *   so the object wont move from its dupli-transform.
1321          *
1322          * - no gob means this is being made from a linked object,
1323          *   this is closer to making a copy of the object - in-place. */
1324         if (gob) {
1325                 ob->rotmode= target->rotmode;
1326                 mult_m4_m4m4(ob->obmat, gob->obmat, target->obmat);
1327                 if (gob->dup_group) { /* should always be true */
1328                         float tvec[3];
1329                         copy_v3_v3(tvec, gob->dup_group->dupli_ofs);
1330                         mul_mat3_m4_v3(ob->obmat, tvec);
1331                         sub_v3_v3(ob->obmat[3], tvec);
1332                 }
1333                 object_apply_mat4(ob, ob->obmat, FALSE, TRUE);
1334         }
1335         else {
1336                 copy_object_transform(ob, target);
1337                 ob->parent= target->parent;     /* libdata */
1338                 copy_m4_m4(ob->parentinv, target->parentinv);
1339         }
1340         
1341         /* copy animdata stuff - drivers only for now... */
1342         object_copy_proxy_drivers(ob, target);
1343
1344         /* skip constraints? */
1345         // FIXME: this is considered by many as a bug
1346         
1347         /* set object type and link to data */
1348         ob->type= target->type;
1349         ob->data= target->data;
1350         id_us_plus((ID *)ob->data);             /* ensures lib data becomes LIB_EXTERN */
1351         
1352         /* copy material and index information */
1353         ob->actcol= ob->totcol= 0;
1354         if (ob->mat) MEM_freeN(ob->mat);
1355         if (ob->matbits) MEM_freeN(ob->matbits);
1356         ob->mat = NULL;
1357         ob->matbits= NULL;
1358         if ((target->totcol) && (target->mat) && OB_TYPE_SUPPORT_MATERIAL(ob->type)) {
1359                 int i;
1360                 
1361                 ob->actcol= target->actcol;
1362                 ob->totcol= target->totcol;
1363                 
1364                 ob->mat = MEM_dupallocN(target->mat);
1365                 ob->matbits = MEM_dupallocN(target->matbits);
1366                 for (i=0; i<target->totcol; i++) {
1367                         /* dont need to run test_object_materials since we know this object is new and not used elsewhere */
1368                         id_us_plus((ID *)ob->mat[i]); 
1369                 }
1370         }
1371         
1372         /* type conversions */
1373         if (target->type == OB_ARMATURE) {
1374                 copy_object_pose(ob, target);   /* data copy, object pointers in constraints */
1375                 rest_pose(ob->pose);                    /* clear all transforms in channels */
1376                 armature_rebuild_pose(ob, ob->data);    /* set all internal links */
1377                 
1378                 armature_set_id_extern(ob);
1379         }
1380         else if (target->type == OB_EMPTY) {
1381                 ob->empty_drawtype = target->empty_drawtype;
1382                 ob->empty_drawsize = target->empty_drawsize;
1383         }
1384
1385         /* copy IDProperties */
1386         if (ob->id.properties) {
1387                 IDP_FreeProperty(ob->id.properties);
1388                 MEM_freeN(ob->id.properties);
1389                 ob->id.properties= NULL;
1390         }
1391         if (target->id.properties) {
1392                 ob->id.properties= IDP_CopyProperty(target->id.properties);
1393         }
1394
1395         /* copy drawtype info */
1396         ob->dt= target->dt;
1397 }
1398
1399
1400 /* *************** CALC ****************** */
1401
1402 void object_scale_to_mat3(Object *ob, float mat[][3])
1403 {
1404         float vec[3];
1405         mul_v3_v3v3(vec, ob->size, ob->dscale);
1406         size_to_mat3( mat,vec);
1407 }
1408
1409 void object_rot_to_mat3(Object *ob, float mat[][3])
1410 {
1411         float rmat[3][3], dmat[3][3];
1412         
1413         /* 'dmat' is the delta-rotation matrix, which will get (pre)multiplied
1414          * with the rotation matrix to yield the appropriate rotation
1415          */
1416
1417         /* rotations may either be quats, eulers (with various rotation orders), or axis-angle */
1418         if (ob->rotmode > 0) {
1419                 /* euler rotations (will cause gimble lock, but this can be alleviated a bit with rotation orders) */
1420                 eulO_to_mat3(rmat, ob->rot, ob->rotmode);
1421                 eulO_to_mat3(dmat, ob->drot, ob->rotmode);
1422         }
1423         else if (ob->rotmode == ROT_MODE_AXISANGLE) {
1424                 /* axis-angle -  not really that great for 3D-changing orientations */
1425                 axis_angle_to_mat3(rmat, ob->rotAxis, ob->rotAngle);
1426                 axis_angle_to_mat3(dmat, ob->drotAxis, ob->drotAngle);
1427         }
1428         else {
1429                 /* quats are normalised before use to eliminate scaling issues */
1430                 float tquat[4];
1431                 
1432                 normalize_qt_qt(tquat, ob->quat);
1433                 quat_to_mat3(rmat, tquat);
1434                 
1435                 normalize_qt_qt(tquat, ob->dquat);
1436                 quat_to_mat3(dmat, tquat);
1437         }
1438         
1439         /* combine these rotations */
1440         mul_m3_m3m3(mat, dmat, rmat);
1441 }
1442
1443 void object_mat3_to_rot(Object *ob, float mat[][3], short use_compat)
1444 {
1445         switch(ob->rotmode) {
1446         case ROT_MODE_QUAT:
1447                 {
1448                         float dquat[4];
1449                         mat3_to_quat(ob->quat, mat);
1450                         normalize_qt_qt(dquat, ob->dquat);
1451                         invert_qt(dquat);
1452                         mul_qt_qtqt(ob->quat, dquat, ob->quat);
1453                 }
1454                 break;
1455         case ROT_MODE_AXISANGLE:
1456                 mat3_to_axis_angle(ob->rotAxis, &ob->rotAngle, mat);
1457                 sub_v3_v3(ob->rotAxis, ob->drotAxis);
1458                 ob->rotAngle -= ob->drotAngle;
1459                 break;
1460         default: /* euler */
1461                 {
1462                         float quat[4];
1463                         float dquat[4];
1464                         float tmat[3][3];
1465
1466                         /* without drot we could apply 'mat' directly */
1467                         mat3_to_quat(quat, mat);
1468                         eulO_to_quat(dquat, ob->drot, ob->rotmode);
1469                         invert_qt(dquat);
1470                         mul_qt_qtqt(quat, dquat, quat);
1471                         quat_to_mat3(tmat, quat);
1472                         /* end drot correction */
1473
1474                         if (use_compat) mat3_to_compatible_eulO(ob->rot, ob->rot, ob->rotmode, tmat);
1475                         else                    mat3_to_eulO(ob->rot, ob->rotmode, tmat);
1476                 }
1477         }
1478 }
1479
1480 void object_tfm_protected_backup(const Object *ob,
1481                                  ObjectTfmProtectedChannels *obtfm)
1482 {
1483
1484 #define TFMCPY(   _v) (obtfm->_v = ob->_v)
1485 #define TFMCPY3D( _v) copy_v3_v3(obtfm->_v, ob->_v)
1486 #define TFMCPY4D( _v) copy_v4_v4(obtfm->_v, ob->_v)
1487
1488         TFMCPY3D(loc);
1489         TFMCPY3D(dloc);
1490         TFMCPY3D(size);
1491         TFMCPY3D(dscale);
1492         TFMCPY3D(rot);
1493         TFMCPY3D(drot);
1494         TFMCPY4D(quat);
1495         TFMCPY4D(dquat);
1496         TFMCPY3D(rotAxis);
1497         TFMCPY3D(drotAxis);
1498         TFMCPY(rotAngle);
1499         TFMCPY(drotAngle);
1500
1501 #undef TFMCPY
1502 #undef TFMCPY3D
1503 #undef TFMCPY4D
1504
1505 }
1506
1507 void object_tfm_protected_restore(Object *ob,
1508                                   const ObjectTfmProtectedChannels *obtfm,
1509                                   const short protectflag)
1510 {
1511         unsigned int i;
1512
1513         for (i= 0; i < 3; i++) {
1514                 if (protectflag & (OB_LOCK_LOCX<<i)) {
1515                         ob->loc[i]=  obtfm->loc[i];
1516                         ob->dloc[i]= obtfm->dloc[i];
1517                 }
1518
1519                 if (protectflag & (OB_LOCK_SCALEX<<i)) {
1520                         ob->size[i]=  obtfm->size[i];
1521                         ob->dscale[i]= obtfm->dscale[i];
1522                 }
1523
1524                 if (protectflag & (OB_LOCK_ROTX<<i)) {
1525                         ob->rot[i]=  obtfm->rot[i];
1526                         ob->drot[i]= obtfm->drot[i];
1527
1528                         ob->quat[i + 1]=  obtfm->quat[i + 1];
1529                         ob->dquat[i + 1]= obtfm->dquat[i + 1];
1530
1531                         ob->rotAxis[i]=  obtfm->rotAxis[i];
1532                         ob->drotAxis[i]= obtfm->drotAxis[i];
1533                 }
1534         }
1535
1536         if ((protectflag & OB_LOCK_ROT4D) && (protectflag & OB_LOCK_ROTW)) {
1537                 ob->quat[0]=  obtfm->quat[0];
1538                 ob->dquat[0]= obtfm->dquat[0];
1539
1540                 ob->rotAngle=  obtfm->rotAngle;
1541                 ob->drotAngle= obtfm->drotAngle;
1542         }
1543 }
1544
1545 /* see pchan_apply_mat4() for the equivalent 'pchan' function */
1546 void object_apply_mat4(Object *ob, float mat[][4], const short use_compat, const short use_parent)
1547 {
1548         float rot[3][3];
1549
1550         if (use_parent && ob->parent) {
1551                 float rmat[4][4], diff_mat[4][4], imat[4][4];
1552                 mult_m4_m4m4(diff_mat, ob->parent->obmat, ob->parentinv);
1553                 invert_m4_m4(imat, diff_mat);
1554                 mult_m4_m4m4(rmat, imat, mat); /* get the parent relative matrix */
1555                 object_apply_mat4(ob, rmat, use_compat, FALSE);
1556                 
1557                 /* same as below, use rmat rather than mat */
1558                 mat4_to_loc_rot_size(ob->loc, rot, ob->size, rmat);
1559                 object_mat3_to_rot(ob, rot, use_compat);
1560         }
1561         else {
1562                 mat4_to_loc_rot_size(ob->loc, rot, ob->size, mat);
1563                 object_mat3_to_rot(ob, rot, use_compat);
1564         }
1565         
1566         sub_v3_v3(ob->loc, ob->dloc);
1567
1568         if (ob->dscale[0] != 0.0f) ob->size[0] /= ob->dscale[0];
1569         if (ob->dscale[1] != 0.0f) ob->size[1] /= ob->dscale[1];
1570         if (ob->dscale[2] != 0.0f) ob->size[2] /= ob->dscale[2];
1571
1572         /* object_mat3_to_rot handles delta rotations */
1573 }
1574
1575 void object_to_mat3(Object *ob, float mat[][3]) /* no parent */
1576 {
1577         float smat[3][3];
1578         float rmat[3][3];
1579         /*float q1[4];*/
1580         
1581         /* size */
1582         object_scale_to_mat3(ob, smat);
1583
1584         /* rot */
1585         object_rot_to_mat3(ob, rmat);
1586         mul_m3_m3m3(mat, rmat, smat);
1587 }
1588
1589 void object_to_mat4(Object *ob, float mat[][4])
1590 {
1591         float tmat[3][3];
1592         
1593         object_to_mat3(ob, tmat);
1594         
1595         copy_m4_m3(mat, tmat);
1596
1597         add_v3_v3v3(mat[3], ob->loc, ob->dloc);
1598 }
1599
1600 /* extern */
1601 int enable_cu_speed= 1;
1602
1603 static void ob_parcurve(Scene *scene, Object *ob, Object *par, float mat[][4])
1604 {
1605         Curve *cu;
1606         float vec[4], dir[3], quat[4], radius, ctime;
1607         float timeoffs = 0.0, sf_orig = 0.0;
1608         
1609         unit_m4(mat);
1610         
1611         cu= par->data;
1612         if (cu->path==NULL || cu->path->data==NULL) /* only happens on reload file, but violates depsgraph still... fix! */
1613                 makeDispListCurveTypes(scene, par, 0);
1614         if (cu->path==NULL) return;
1615         
1616         /* catch exceptions: feature for nla stride editing */
1617         if (ob->ipoflag & OB_DISABLE_PATH) {
1618                 ctime= 0.0f;
1619         }
1620         /* catch exceptions: curve paths used as a duplicator */
1621         else if (enable_cu_speed) {
1622                 /* ctime is now a proper var setting of Curve which gets set by Animato like any other var that's animated,
1623                  * but this will only work if it actually is animated... 
1624                  *
1625                  * we divide the curvetime calculated in the previous step by the length of the path, to get a time
1626                  * factor, which then gets clamped to lie within 0.0 - 1.0 range
1627                  */
1628                 if (IS_EQF(cu->pathlen, 0.0f) == 0)
1629                         ctime= cu->ctime / cu->pathlen;
1630                 else
1631                         ctime= cu->ctime;
1632
1633                 CLAMP(ctime, 0.0f, 1.0f);
1634         }
1635         else {
1636                 ctime= scene->r.cfra;
1637                 if (IS_EQF(cu->pathlen, 0.0f) == 0)
1638                         ctime /= cu->pathlen;
1639                 
1640                 CLAMP(ctime, 0.0f, 1.0f);
1641         }
1642         
1643         /* time calculus is correct, now apply distance offset */
1644         if (cu->flag & CU_OFFS_PATHDIST) {
1645                 ctime += timeoffs/cu->path->totdist;
1646
1647                 /* restore */
1648                 SWAP(float, sf_orig, ob->sf);
1649         }
1650         
1651         
1652         /* vec: 4 items! */
1653         if ( where_on_path(par, ctime, vec, dir, cu->flag & CU_FOLLOW ? quat:NULL, &radius, NULL) ) {
1654
1655                 if (cu->flag & CU_FOLLOW) {
1656 #if 0
1657                         float x1, q[4];
1658                         vec_to_quat( quat,dir, ob->trackflag, ob->upflag);
1659                         
1660                         /* the tilt */
1661                         normalize_v3(dir);
1662                         q[0]= (float)cos(0.5*vec[3]);
1663                         x1= (float)sin(0.5*vec[3]);
1664                         q[1]= -x1*dir[0];
1665                         q[2]= -x1*dir[1];
1666                         q[3]= -x1*dir[2];
1667                         mul_qt_qtqt(quat, q, quat);
1668 #else
1669                         quat_apply_track(quat, ob->trackflag, ob->upflag);
1670 #endif
1671                         normalize_qt(quat);
1672                         quat_to_mat4(mat, quat);
1673                 }
1674                 
1675                 if (cu->flag & CU_PATH_RADIUS) {
1676                         float tmat[4][4], rmat[4][4];
1677                         scale_m4_fl(tmat, radius);
1678                         mult_m4_m4m4(rmat, tmat, mat);
1679                         copy_m4_m4(mat, rmat);
1680                 }
1681
1682                 copy_v3_v3(mat[3], vec);
1683                 
1684         }
1685 }
1686
1687 static void ob_parbone(Object *ob, Object *par, float mat[][4])
1688 {       
1689         bPoseChannel *pchan;
1690         float vec[3];
1691         
1692         if (par->type!=OB_ARMATURE) {
1693                 unit_m4(mat);
1694                 return;
1695         }
1696         
1697         /* Make sure the bone is still valid */
1698         pchan= get_pose_channel(par->pose, ob->parsubstr);
1699         if (!pchan) {
1700                 printf ("Object %s with Bone parent: bone %s doesn't exist\n", ob->id.name+2, ob->parsubstr);
1701                 unit_m4(mat);
1702                 return;
1703         }
1704
1705         /* get bone transform */
1706         copy_m4_m4(mat, pchan->pose_mat);
1707
1708         /* but for backwards compatibility, the child has to move to the tail */
1709         copy_v3_v3(vec, mat[1]);
1710         mul_v3_fl(vec, pchan->bone->length);
1711         add_v3_v3(mat[3], vec);
1712 }
1713
1714 static void give_parvert(Object *par, int nr, float vec[3])
1715 {
1716         BMEditMesh *em;
1717         int a, count;
1718         
1719         vec[0]=vec[1]=vec[2]= 0.0f;
1720         
1721         if (par->type==OB_MESH) {
1722                 Mesh *me= par->data;
1723                 DerivedMesh *dm;
1724
1725                 em = me->edit_btmesh;
1726
1727 #if 0   /* this was bmesh only, better, evaluate why this was needed - campbell*/
1728                 if (em) {
1729                         BMVert *eve;
1730                         BMIter iter;
1731
1732                         BM_ITER(eve, &iter, em->bm, BM_VERTS_OF_MESH, NULL) {
1733                                 int *keyindex = CustomData_bmesh_get(&em->bm->vdata, eve->head.data, CD_SHAPE_KEYINDEX);
1734                                 
1735                                 if (keyindex && *keyindex==nr) {
1736                                         copy_v3_v3(vec, eve->co);
1737                                         break;
1738                                 }
1739                         }
1740                 }
1741 #endif
1742
1743                 dm = (em)? em->derivedFinal: par->derivedFinal;
1744                         
1745                 if (dm) {
1746                         MVert *mvert= dm->getVertArray(dm);
1747                         int *index = (int *)dm->getVertDataArray(dm, CD_ORIGINDEX);
1748                         int i, vindex, numVerts = dm->getNumVerts(dm);
1749
1750                         /* get the average of all verts with (original index == nr) */
1751                         count= 0;
1752                         for (i = 0; i < numVerts; i++) {
1753                                 vindex= (index)? index[i]: i;
1754
1755                                 if (vindex == nr) {
1756                                         add_v3_v3(vec, mvert[i].co);
1757                                         count++;
1758                                 }
1759                         }
1760
1761                         if (count==0) {
1762                                 /* keep as 0,0,0 */
1763                         } else if (count > 0) {
1764                                 mul_v3_fl(vec, 1.0f / count);
1765                         } else {
1766                                 /* use first index if its out of range */
1767                                 dm->getVertCo(dm, 0, vec);
1768                         }
1769                 }
1770                 else fprintf(stderr, "%s: DerivedMesh is needed to solve parenting, object position can be wrong now\n", __func__);
1771         }
1772         else if (ELEM(par->type, OB_CURVE, OB_SURF)) {
1773                 Nurb *nu;
1774                 Curve *cu;
1775                 BPoint *bp;
1776                 BezTriple *bezt;
1777                 int found= 0;
1778                 ListBase *nurbs;
1779
1780                 cu= par->data;
1781                 nurbs= BKE_curve_nurbs(cu);
1782                 nu= nurbs->first;
1783
1784                 count= 0;
1785                 while (nu && !found) {
1786                         if (nu->type == CU_BEZIER) {
1787                                 bezt= nu->bezt;
1788                                 a= nu->pntsu;
1789                                 while (a--) {
1790                                         if (count==nr) {
1791                                                 found= 1;
1792                                                 copy_v3_v3(vec, bezt->vec[1]);
1793                                                 break;
1794                                         }
1795                                         count++;
1796                                         bezt++;
1797                                 }
1798                         }
1799                         else {
1800                                 bp= nu->bp;
1801                                 a= nu->pntsu*nu->pntsv;
1802                                 while (a--) {
1803                                         if (count==nr) {
1804                                                 found= 1;
1805                                                 memcpy(vec, bp->vec, sizeof(float)*3);
1806                                                 break;
1807                                         }
1808                                         count++;
1809                                         bp++;
1810                                 }
1811                         }
1812                         nu= nu->next;
1813                 }
1814
1815         }
1816         else if (par->type==OB_LATTICE) {
1817                 Lattice *latt= par->data;
1818                 BPoint *bp;
1819                 DispList *dl = find_displist(&par->disp, DL_VERTS);
1820                 float *co = dl?dl->verts:NULL;
1821                 
1822                 if (latt->editlatt) latt= latt->editlatt->latt;
1823                 
1824                 a= latt->pntsu*latt->pntsv*latt->pntsw;
1825                 count= 0;
1826                 bp= latt->def;
1827                 while (a--) {
1828                         if (count==nr) {
1829                                 if (co)
1830                                         memcpy(vec, co, 3*sizeof(float));
1831                                 else
1832                                         memcpy(vec, bp->vec, 3*sizeof(float));
1833                                 break;
1834                         }
1835                         count++;
1836                         if (co) co+= 3;
1837                         else bp++;
1838                 }
1839         }
1840 }
1841
1842 static void ob_parvert3(Object *ob, Object *par, float mat[][4])
1843 {
1844         float cmat[3][3], v1[3], v2[3], v3[3], q[4];
1845
1846         /* in local ob space */
1847         unit_m4(mat);
1848         
1849         if (ELEM4(par->type, OB_MESH, OB_SURF, OB_CURVE, OB_LATTICE)) {
1850                 
1851                 give_parvert(par, ob->par1, v1);
1852                 give_parvert(par, ob->par2, v2);
1853                 give_parvert(par, ob->par3, v3);
1854                                 
1855                 tri_to_quat( q,v1, v2, v3);
1856                 quat_to_mat3( cmat,q);
1857                 copy_m4_m3(mat, cmat);
1858                 
1859                 if (ob->type==OB_CURVE) {
1860                         copy_v3_v3(mat[3], v1);
1861                 }
1862                 else {
1863                         add_v3_v3v3(mat[3], v1, v2);
1864                         add_v3_v3(mat[3], v3);
1865                         mul_v3_fl(mat[3], 0.3333333f);
1866                 }
1867         }
1868 }
1869
1870 static int where_is_object_parslow(Object *ob, float obmat[4][4], float slowmat[4][4])
1871 {
1872         float *fp1, *fp2;
1873         float fac1, fac2;
1874         int a;
1875
1876         // include framerate
1877         fac1= ( 1.0f / (1.0f + fabsf(ob->sf)) );
1878         if (fac1 >= 1.0f) return 0;
1879         fac2= 1.0f-fac1;
1880
1881         fp1= obmat[0];
1882         fp2= slowmat[0];
1883         for (a=0; a<16; a++, fp1++, fp2++) {
1884                 fp1[0]= fac1*fp1[0] + fac2*fp2[0];
1885         }
1886
1887         return 1;
1888 }
1889
1890 void where_is_object_time(Scene *scene, Object *ob, float ctime)
1891 {
1892         float slowmat[4][4] = MAT4_UNITY;
1893         float stime=ctime;
1894         
1895         /* new version: correct parent+vertexparent and track+parent */
1896         /* this one only calculates direct attached parent and track */
1897         /* is faster, but should keep track of timeoffs */
1898         
1899         if (ob==NULL) return;
1900         
1901         /* execute drivers only, as animation has already been done */
1902         BKE_animsys_evaluate_animdata(scene, &ob->id, ob->adt, ctime, ADT_RECALC_DRIVERS);
1903         
1904         if (ob->parent) {
1905                 Object *par= ob->parent;
1906                 
1907                 /* hurms, code below conflicts with depgraph... (ton) */
1908                 /* and even worse, it gives bad effects for NLA stride too (try ctime != par->ctime, with MBlur) */
1909                 if (stime != par->ctime) {
1910                         // only for ipo systems? 
1911                         Object tmp= *par;
1912                         
1913                         if (par->proxy_from);   // was a copied matrix, no where_is! bad...
1914                         else where_is_object_time(scene, par, ctime);
1915                         
1916                         solve_parenting(scene, ob, par, ob->obmat, slowmat, 0);
1917                         
1918                         *par= tmp;
1919                 }
1920                 else
1921                         solve_parenting(scene, ob, par, ob->obmat, slowmat, 0);
1922                 
1923                 /* "slow parent" is definitely not threadsafe, and may also give bad results jumping around 
1924                  * An old-fashioned hack which probably doesn't really cut it anymore
1925                  */
1926                 if (ob->partype & PARSLOW) {
1927                         if (!where_is_object_parslow(ob, ob->obmat, slowmat))
1928                                 return;
1929                 }
1930         }
1931         else {
1932                 object_to_mat4(ob, ob->obmat);
1933         }
1934
1935         /* solve constraints */
1936         if (ob->constraints.first && !(ob->transflag & OB_NO_CONSTRAINTS)) {
1937                 bConstraintOb *cob;
1938                 
1939                 cob= constraints_make_evalob(scene, ob, NULL, CONSTRAINT_OBTYPE_OBJECT);
1940                 
1941                 /* constraints need ctime, not stime. Some call where_is_object_time and bsystem_time */
1942                 solve_constraints (&ob->constraints, cob, ctime);
1943                 
1944                 constraints_clear_evalob(cob);
1945         }
1946         
1947         /* set negative scale flag in object */
1948         if (is_negative_m4(ob->obmat))  ob->transflag |= OB_NEG_SCALE;
1949         else                                                    ob->transflag &= ~OB_NEG_SCALE;
1950 }
1951
1952 /* get object transformation matrix without recalculating dependencies and
1953  * constraints -- assume dependencies are already solved by depsgraph.
1954  * no changes to object and it's parent would be done.
1955  * used for bundles orientation in 3d space relative to parented blender camera */
1956 void where_is_object_mat(Scene *scene, Object *ob, float obmat[4][4])
1957 {
1958         float slowmat[4][4] = MAT4_UNITY;
1959
1960         if (ob->parent) {
1961                 Object *par= ob->parent;
1962
1963                 solve_parenting(scene, ob, par, obmat, slowmat, 1);
1964
1965                 if (ob->partype & PARSLOW)
1966                         where_is_object_parslow(ob, obmat, slowmat);
1967         }
1968         else {
1969                 object_to_mat4(ob, obmat);
1970         }
1971 }
1972
1973 static void solve_parenting (Scene *scene, Object *ob, Object *par, float obmat[][4], float slowmat[][4], int simul)
1974 {
1975         float totmat[4][4];
1976         float tmat[4][4];
1977         float locmat[4][4];
1978         float vec[3];
1979         int ok;
1980         
1981         object_to_mat4(ob, locmat);
1982         
1983         if (ob->partype & PARSLOW) copy_m4_m4(slowmat, obmat);
1984
1985         switch(ob->partype & PARTYPE) {
1986         case PAROBJECT:
1987                 ok= 0;
1988                 if (par->type==OB_CURVE) {
1989                         if ( ((Curve *)par->data)->flag & CU_PATH ) {
1990                                 ob_parcurve(scene, ob, par, tmat);
1991                                 ok= 1;
1992                         }
1993                 }
1994                 
1995                 if (ok) mul_serie_m4(totmat, par->obmat, tmat, 
1996                         NULL, NULL, NULL, NULL, NULL, NULL);
1997                 else copy_m4_m4(totmat, par->obmat);
1998                 
1999                 break;
2000         case PARBONE:
2001                 ob_parbone(ob, par, tmat);
2002                 mul_serie_m4(totmat, par->obmat, tmat,         
2003                         NULL, NULL, NULL, NULL, NULL, NULL);
2004                 break;
2005                 
2006         case PARVERT1:
2007                 unit_m4(totmat);
2008                 if (simul) {
2009                         copy_v3_v3(totmat[3], par->obmat[3]);
2010                 }
2011                 else{
2012                         give_parvert(par, ob->par1, vec);
2013                         mul_v3_m4v3(totmat[3], par->obmat, vec);
2014                 }
2015                 break;
2016         case PARVERT3:
2017                 ob_parvert3(ob, par, tmat);
2018                 
2019                 mul_serie_m4(totmat, par->obmat, tmat,         
2020                         NULL, NULL, NULL, NULL, NULL, NULL);
2021                 break;
2022                 
2023         case PARSKEL:
2024                 copy_m4_m4(totmat, par->obmat);
2025                 break;
2026         }
2027         
2028         // total 
2029         mul_serie_m4(tmat, totmat, ob->parentinv,         
2030                 NULL, NULL, NULL, NULL, NULL, NULL);
2031         mul_serie_m4(obmat, tmat, locmat,         
2032                 NULL, NULL, NULL, NULL, NULL, NULL);
2033         
2034         if (simul) {
2035
2036         }
2037         else{
2038                 // external usable originmat 
2039                 copy_m3_m4(originmat, tmat);
2040                 
2041                 // origin, voor help line
2042                 if ( (ob->partype & PARTYPE)==PARSKEL ) {
2043                         copy_v3_v3(ob->orig, par->obmat[3]);
2044                 }
2045                 else {
2046                         copy_v3_v3(ob->orig, totmat[3]);
2047                 }
2048         }
2049
2050 }
2051
2052 void where_is_object(struct Scene *scene, Object *ob)
2053 {
2054         where_is_object_time(scene, ob, (float)scene->r.cfra);
2055 }
2056
2057
2058 void where_is_object_simul(Scene *scene, Object *ob)
2059 /* was written for the old game engine (until 2.04) */
2060 /* It seems that this function is only called
2061  * for a lamp that is the child of another object */
2062 {
2063         Object *par;
2064         float *fp1, *fp2;
2065         float slowmat[4][4];
2066         float fac1, fac2;
2067         int a;
2068         
2069         /* NO TIMEOFFS */
2070         if (ob->parent) {
2071                 par= ob->parent;
2072                 
2073                 solve_parenting(scene, ob, par, ob->obmat, slowmat, 1);
2074                 
2075                 if (ob->partype & PARSLOW) {
2076                         fac1= (float)(1.0/(1.0+ fabs(ob->sf)));
2077                         fac2= 1.0f-fac1;
2078                         fp1= ob->obmat[0];
2079                         fp2= slowmat[0];
2080                         for (a=0; a<16; a++, fp1++, fp2++) {
2081                                 fp1[0]= fac1*fp1[0] + fac2*fp2[0];
2082                         }
2083                 }
2084         }
2085         else {
2086                 object_to_mat4(ob, ob->obmat);
2087         }
2088         
2089         /* solve constraints */
2090         if (ob->constraints.first) {
2091                 bConstraintOb *cob;
2092                 
2093                 cob= constraints_make_evalob(scene, ob, NULL, CONSTRAINT_OBTYPE_OBJECT);
2094                 solve_constraints(&ob->constraints, cob, (float)scene->r.cfra);
2095                 constraints_clear_evalob(cob);
2096         }
2097 }
2098
2099 /* for calculation of the inverse parent transform, only used for editor */
2100 void what_does_parent(Scene *scene, Object *ob, Object *workob)
2101 {
2102         clear_workob(workob);
2103         
2104         unit_m4(workob->obmat);
2105         unit_m4(workob->parentinv);
2106         unit_m4(workob->constinv);
2107         workob->parent= ob->parent;
2108
2109         workob->trackflag= ob->trackflag;
2110         workob->upflag= ob->upflag;
2111         
2112         workob->partype= ob->partype;
2113         workob->par1= ob->par1;
2114         workob->par2= ob->par2;
2115         workob->par3= ob->par3;
2116
2117         workob->constraints.first = ob->constraints.first;
2118         workob->constraints.last = ob->constraints.last;
2119
2120         BLI_strncpy(workob->parsubstr, ob->parsubstr, sizeof(workob->parsubstr));
2121
2122         where_is_object(scene, workob);
2123 }
2124
2125 BoundBox *unit_boundbox(void)
2126 {
2127         BoundBox *bb;
2128         float min[3] = {-1.0f,-1.0f,-1.0f}, max[3] = {-1.0f,-1.0f,-1.0f};
2129
2130         bb= MEM_callocN(sizeof(BoundBox), "OB-BoundBox");
2131         boundbox_set_from_min_max(bb, min, max);
2132         
2133         return bb;
2134 }
2135
2136 void boundbox_set_from_min_max(BoundBox *bb, float min[3], float max[3])
2137 {
2138         bb->vec[0][0]=bb->vec[1][0]=bb->vec[2][0]=bb->vec[3][0]= min[0];
2139         bb->vec[4][0]=bb->vec[5][0]=bb->vec[6][0]=bb->vec[7][0]= max[0];
2140         
2141         bb->vec[0][1]=bb->vec[1][1]=bb->vec[4][1]=bb->vec[5][1]= min[1];
2142         bb->vec[2][1]=bb->vec[3][1]=bb->vec[6][1]=bb->vec[7][1]= max[1];
2143
2144         bb->vec[0][2]=bb->vec[3][2]=bb->vec[4][2]=bb->vec[7][2]= min[2];
2145         bb->vec[1][2]=bb->vec[2][2]=bb->vec[5][2]=bb->vec[6][2]= max[2];
2146 }
2147
2148 BoundBox *object_get_boundbox(Object *ob)
2149 {
2150         BoundBox *bb= NULL;
2151         
2152         if (ob->type==OB_MESH) {
2153                 bb = mesh_get_bb(ob);
2154         }
2155         else if (ELEM3(ob->type, OB_CURVE, OB_SURF, OB_FONT)) {
2156                 bb= ob->bb ? ob->bb : ( (Curve *)ob->data )->bb;
2157         }
2158         else if (ob->type==OB_MBALL) {
2159                 bb= ob->bb;
2160         }
2161         return bb;
2162 }
2163
2164 /* used to temporally disable/enable boundbox */
2165 void object_boundbox_flag(Object *ob, int flag, int set)
2166 {
2167         BoundBox *bb= object_get_boundbox(ob);
2168         if (bb) {
2169                 if (set) bb->flag |= flag;
2170                 else bb->flag &= ~flag;
2171         }
2172 }
2173
2174 void object_get_dimensions(Object *ob, float vec[3])
2175 {
2176         BoundBox *bb = NULL;
2177         
2178         bb= object_get_boundbox(ob);
2179         if (bb) {
2180                 float scale[3];
2181                 
2182                 mat4_to_size( scale,ob->obmat);
2183                 
2184                 vec[0] = fabsf(scale[0]) * (bb->vec[4][0] - bb->vec[0][0]);
2185                 vec[1] = fabsf(scale[1]) * (bb->vec[2][1] - bb->vec[0][1]);
2186                 vec[2] = fabsf(scale[2]) * (bb->vec[1][2] - bb->vec[0][2]);
2187         } else {
2188                 vec[0] = vec[1] = vec[2] = 0.f;
2189         }
2190 }
2191
2192 void object_set_dimensions(Object *ob, const float *value)
2193 {
2194         BoundBox *bb = NULL;
2195         
2196         bb= object_get_boundbox(ob);
2197         if (bb) {
2198                 float scale[3], len[3];
2199                 
2200                 mat4_to_size( scale,ob->obmat);
2201                 
2202                 len[0] = bb->vec[4][0] - bb->vec[0][0];
2203                 len[1] = bb->vec[2][1] - bb->vec[0][1];
2204                 len[2] = bb->vec[1][2] - bb->vec[0][2];
2205                 
2206                 if (len[0] > 0.f) ob->size[0] = value[0] / len[0];
2207                 if (len[1] > 0.f) ob->size[1] = value[1] / len[1];
2208                 if (len[2] > 0.f) ob->size[2] = value[2] / len[2];
2209         }
2210 }
2211
2212 void minmax_object(Object *ob, float min[3], float max[3])
2213 {
2214         BoundBox bb;
2215         float vec[3];
2216         int a;
2217         short change= FALSE;
2218         
2219         switch(ob->type) {
2220         case OB_CURVE:
2221         case OB_FONT:
2222         case OB_SURF:
2223                 {
2224                         Curve *cu= ob->data;
2225
2226                         if (cu->bb==NULL) tex_space_curve(cu);
2227                         bb= *(cu->bb);
2228
2229                         for (a=0; a<8; a++) {
2230                                 mul_m4_v3(ob->obmat, bb.vec[a]);
2231                                 DO_MINMAX(bb.vec[a], min, max);
2232                         }
2233                         change= TRUE;
2234                 }
2235                 break;
2236         case OB_LATTICE:
2237                 {
2238                         Lattice *lt= ob->data;
2239                         BPoint *bp= lt->def;
2240                         int u, v, w;
2241
2242                         for (w=0; w<lt->pntsw; w++) {
2243                                 for (v=0; v<lt->pntsv; v++) {
2244                                         for (u=0; u<lt->pntsu; u++, bp++) {
2245                                                 mul_v3_m4v3(vec, ob->obmat, bp->vec);
2246                                                 DO_MINMAX(vec, min, max);
2247                                         }
2248                                 }
2249                         }
2250                         change= TRUE;
2251                 }
2252                 break;
2253         case OB_ARMATURE:
2254                 if (ob->pose) {
2255                         bPoseChannel *pchan;
2256                         for (pchan= ob->pose->chanbase.first; pchan; pchan= pchan->next) {
2257                                 mul_v3_m4v3(vec, ob->obmat, pchan->pose_head);
2258                                 DO_MINMAX(vec, min, max);
2259                                 mul_v3_m4v3(vec, ob->obmat, pchan->pose_tail);
2260                                 DO_MINMAX(vec, min, max);
2261                         }
2262                         change= TRUE;
2263                 }
2264                 break;
2265         case OB_MESH:
2266                 {
2267                         Mesh *me= get_mesh(ob);
2268
2269                         if (me) {
2270                                 bb = *mesh_get_bb(ob);
2271
2272                                 for (a=0; a<8; a++) {
2273                                         mul_m4_v3(ob->obmat, bb.vec[a]);
2274                                         DO_MINMAX(bb.vec[a], min, max);
2275                                 }
2276                                 change= TRUE;
2277                         }
2278                 }
2279                 break;
2280         }
2281
2282         if (change == FALSE) {
2283                 DO_MINMAX(ob->obmat[3], min, max);
2284
2285                 copy_v3_v3(vec, ob->obmat[3]);
2286                 add_v3_v3(vec, ob->size);
2287                 DO_MINMAX(vec, min, max);
2288
2289                 copy_v3_v3(vec, ob->obmat[3]);
2290                 sub_v3_v3(vec, ob->size);
2291                 DO_MINMAX(vec, min, max);
2292         }
2293 }
2294
2295 int minmax_object_duplis(Scene *scene, Object *ob, float min[3], float max[3])
2296 {
2297         int ok= 0;
2298         if ((ob->transflag & OB_DUPLI)==0) {
2299                 return ok;
2300         } else {
2301                 ListBase *lb;
2302                 DupliObject *dob;
2303                 
2304                 lb= object_duplilist(scene, ob);
2305                 for (dob= lb->first; dob; dob= dob->next) {
2306                         if (dob->no_draw == 0) {
2307                                 BoundBox *bb= object_get_boundbox(dob->ob);
2308
2309                                 if (bb) {
2310                                         int i;
2311                                         for (i=0; i<8; i++) {
2312                                                 float vec[3];
2313                                                 mul_v3_m4v3(vec, dob->mat, bb->vec[i]);
2314                                                 DO_MINMAX(vec, min, max);
2315                                         }
2316
2317                                         ok= 1;
2318                                 }
2319                         }
2320                 }
2321                 free_object_duplilist(lb);      /* does restore */
2322         }
2323
2324         return ok;
2325 }
2326
2327 void BKE_object_foreach_display_point(
2328         Object *ob, float obmat[4][4],
2329         void (*func_cb)(const float[3], void *), void *user_data)
2330 {
2331         float co[3];
2332
2333         if (ob->derivedFinal) {
2334                 DerivedMesh *dm= ob->derivedFinal;
2335                 MVert *mv= dm->getVertArray(dm);
2336                 int totvert= dm->getNumVerts(dm);
2337                 int i;
2338
2339                 for (i= 0; i < totvert; i++, mv++) {
2340                         mul_v3_m4v3(co, obmat, mv->co);
2341                         func_cb(co, user_data);
2342                 }
2343         }
2344         else if (ob->disp.first) {
2345                 DispList *dl;
2346
2347                 for (dl=ob->disp.first; dl; dl=dl->next) {
2348                         float *v3= dl->verts;
2349                         int totvert= dl->nr;
2350                         int i;
2351
2352                         for (i= 0; i < totvert; i++, v3+=3) {
2353                                 mul_v3_m4v3(co, obmat, v3);
2354                                 func_cb(co, user_data);
2355                         }
2356                 }
2357         }
2358 }
2359
2360 void BKE_scene_foreach_display_point(
2361         Scene *scene, View3D *v3d, const short flag,
2362         void (*func_cb)(const float[3], void *), void *user_data)
2363 {
2364         Base *base;
2365         Object *ob;
2366
2367         for (base= FIRSTBASE; base; base = base->next) {
2368                 if (BASE_VISIBLE(v3d, base) && (base->flag & flag) == flag) {
2369                         ob= base->object;
2370
2371                         if ((ob->transflag & OB_DUPLI)==0) {
2372                                 BKE_object_foreach_display_point(ob, ob->obmat, func_cb, user_data);
2373                         }
2374                         else {
2375                                 ListBase *lb;
2376                                 DupliObject *dob;
2377
2378                                 lb= object_duplilist(scene, ob);
2379                                 for (dob= lb->first; dob; dob= dob->next) {
2380                                         if (dob->no_draw == 0) {
2381                                                 BKE_object_foreach_display_point(dob->ob, dob->mat, func_cb, user_data);
2382                                         }
2383                                 }
2384                                 free_object_duplilist(lb);      /* does restore */
2385                         }
2386                 }
2387         }
2388 }
2389
2390 /* copied from DNA_object_types.h */
2391 typedef struct ObTfmBack {
2392         float loc[3], dloc[3], orig[3];
2393         float size[3], dscale[3];       /* scale and delta scale */
2394         float rot[3], drot[3];          /* euler rotation */
2395         float quat[4], dquat[4];        /* quaternion rotation */
2396         float rotAxis[3], drotAxis[3];  /* axis angle rotation - axis part */
2397         float rotAngle, drotAngle;      /* axis angle rotation - angle part */
2398         float obmat[4][4];              /* final worldspace matrix with constraints & animsys applied */
2399         float parentinv[4][4]; /* inverse result of parent, so that object doesn't 'stick' to parent */
2400         float constinv[4][4]; /* inverse result of constraints. doesn't include effect of parent or object local transform */
2401         float imat[4][4];       /* inverse matrix of 'obmat' for during render, old game engine, temporally: ipokeys of transform  */
2402 } ObTfmBack;
2403
2404 void *object_tfm_backup(Object *ob)
2405 {
2406         ObTfmBack *obtfm= MEM_mallocN(sizeof(ObTfmBack), "ObTfmBack");
2407         copy_v3_v3(obtfm->loc, ob->loc);
2408         copy_v3_v3(obtfm->dloc, ob->dloc);
2409         copy_v3_v3(obtfm->orig, ob->orig);
2410         copy_v3_v3(obtfm->size, ob->size);
2411         copy_v3_v3(obtfm->dscale, ob->dscale);
2412         copy_v3_v3(obtfm->rot, ob->rot);
2413         copy_v3_v3(obtfm->drot, ob->drot);
2414         copy_qt_qt(obtfm->quat, ob->quat);
2415         copy_qt_qt(obtfm->dquat, ob->dquat);
2416         copy_v3_v3(obtfm->rotAxis, ob->rotAxis);
2417         copy_v3_v3(obtfm->drotAxis, ob->drotAxis);
2418         obtfm->rotAngle= ob->rotAngle;
2419         obtfm->drotAngle= ob->drotAngle;
2420         copy_m4_m4(obtfm->obmat, ob->obmat);
2421         copy_m4_m4(obtfm->parentinv, ob->parentinv);
2422         copy_m4_m4(obtfm->constinv, ob->constinv);
2423         copy_m4_m4(obtfm->imat, ob->imat);
2424
2425         return (void *)obtfm;
2426 }
2427
2428 void object_tfm_restore(Object *ob, void *obtfm_pt)
2429 {
2430         ObTfmBack *obtfm= (ObTfmBack *)obtfm_pt;
2431         copy_v3_v3(ob->loc, obtfm->loc);
2432         copy_v3_v3(ob->dloc, obtfm->dloc);
2433         copy_v3_v3(ob->orig, obtfm->orig);
2434         copy_v3_v3(ob->size, obtfm->size);
2435         copy_v3_v3(ob->dscale, obtfm->dscale);
2436         copy_v3_v3(ob->rot, obtfm->rot);
2437         copy_v3_v3(ob->drot, obtfm->drot);
2438         copy_qt_qt(ob->quat, obtfm->quat);
2439         copy_qt_qt(ob->dquat, obtfm->dquat);
2440         copy_v3_v3(ob->rotAxis, obtfm->rotAxis);
2441         copy_v3_v3(ob->drotAxis, obtfm->drotAxis);
2442         ob->rotAngle= obtfm->rotAngle;
2443         ob->drotAngle= obtfm->drotAngle;
2444         copy_m4_m4(ob->obmat, obtfm->obmat);
2445         copy_m4_m4(ob->parentinv, obtfm->parentinv);
2446         copy_m4_m4(ob->constinv, obtfm->constinv);
2447         copy_m4_m4(ob->imat, obtfm->imat);
2448 }
2449
2450 int BKE_object_parent_loop_check(const Object *par, const Object *ob)
2451 {
2452         /* test if 'ob' is a parent somewhere in par's parents */
2453         if (par == NULL) return 0;
2454         if (ob == par) return 1;
2455         return BKE_object_parent_loop_check(par->parent, ob);
2456 }
2457
2458 /* proxy rule: lib_object->proxy_from == the one we borrow from, only set temporal and cleared here */
2459 /*           local_object->proxy      == pointer to library object, saved in files and read */
2460
2461 /* function below is polluted with proxy exceptions, cleanup will follow! */
2462
2463 /* the main object update call, for object matrix, constraints, keys and displist (modifiers) */
2464 /* requires flags to be set! */
2465 void object_handle_update(Scene *scene, Object *ob)
2466 {
2467         if (ob->recalc & OB_RECALC_ALL) {
2468                 /* speed optimization for animation lookups */
2469                 if (ob->pose)
2470                         make_pose_channels_hash(ob->pose);
2471
2472                 if (ob->recalc & OB_RECALC_DATA) {
2473                         if (ob->type==OB_ARMATURE) {
2474                                 /* this happens for reading old files and to match library armatures
2475                                  * with poses we do it ahead of where_is_object to ensure animation
2476                                  * is evaluated on the rebuilt pose, otherwise we get incorrect poses
2477                                  * on file load */
2478                                 if (ob->pose==NULL || (ob->pose->flag & POSE_RECALC))
2479                                         armature_rebuild_pose(ob, ob->data);
2480                         }
2481                 }
2482
2483                 /* XXX new animsys warning: depsgraph tag OB_RECALC_DATA should not skip drivers, 
2484                  * which is only in where_is_object now */
2485                 // XXX: should this case be OB_RECALC_OB instead?
2486                 if (ob->recalc & OB_RECALC_ALL) {
2487                         
2488                         if (G.f & G_DEBUG)
2489                                 printf("recalcob %s\n", ob->id.name+2);
2490                         
2491                         /* handle proxy copy for target */
2492                         if (ob->id.lib && ob->proxy_from) {
2493                                 // printf("ob proxy copy, lib ob %s proxy %s\n", ob->id.name, ob->proxy_from->id.name);
2494                                 if (ob->proxy_from->proxy_group) {/* transform proxy into group space */
2495                                         Object *obg= ob->proxy_from->proxy_group;
2496                                         invert_m4_m4(obg->imat, obg->obmat);
2497                                         mult_m4_m4m4(ob->obmat, obg->imat, ob->proxy_from->obmat);
2498                                         if (obg->dup_group) { /* should always be true */
2499                                                 add_v3_v3(ob->obmat[3], obg->dup_group->dupli_ofs);
2500                                         }
2501                                 }
2502                                 else
2503                                         copy_m4_m4(ob->obmat, ob->proxy_from->obmat);
2504                         }
2505                         else
2506                                 where_is_object(scene, ob);
2507                 }
2508                 
2509                 if (ob->recalc & OB_RECALC_DATA) {
2510                         ID *data_id= (ID *)ob->data;
2511                         AnimData *adt= BKE_animdata_from_id(data_id);
2512                         float ctime= (float)scene->r.cfra; // XXX this is bad...
2513                         ListBase pidlist;
2514                         PTCacheID *pid;
2515                         
2516                         if (G.f & G_DEBUG)
2517                                 printf("recalcdata %s\n", ob->id.name+2);
2518
2519                         if (adt) {
2520                                 /* evaluate drivers */
2521                                 // XXX: for mesh types, should we push this to derivedmesh instead?
2522                                 BKE_animsys_evaluate_animdata(scene, data_id, adt, ctime, ADT_RECALC_DRIVERS);
2523                         }
2524
2525                         /* includes all keys and modifiers */
2526                         switch(ob->type) {
2527                         case OB_MESH:
2528                                 {
2529 #if 0                           // XXX, comment for 2.56a release, background wont set 'scene->customdata_mask'
2530                                         BMEditMesh *em = (ob == scene->obedit) ? BMEdit_FromObject(ob) : NULL;
2531                                         BLI_assert((scene->customdata_mask & CD_MASK_BAREMESH) == CD_MASK_BAREMESH);
2532                                         if (em) {
2533                                                 makeDerivedMesh(scene, ob, em,  scene->customdata_mask, 0); /* was CD_MASK_BAREMESH */
2534                                         }
2535                                         else {
2536                                                 makeDerivedMesh(scene, ob, NULL, scene->customdata_mask, 0);
2537                                         }
2538
2539 #else                           /* ensure CD_MASK_BAREMESH for now */
2540                                         BMEditMesh *em = (ob == scene->obedit) ? BMEdit_FromObject(ob) : NULL;
2541                                         uint64_t data_mask= scene->customdata_mask | ob->customdata_mask | CD_MASK_BAREMESH;
2542                                         if (em) {
2543                                                 makeDerivedMesh(scene, ob, em,  data_mask, 0); /* was CD_MASK_BAREMESH */
2544                                         }
2545                                         else {
2546                                                 makeDerivedMesh(scene, ob, NULL, data_mask, 0);
2547                                         }
2548 #endif
2549
2550                                 }
2551                                 break;
2552
2553                         case OB_ARMATURE:
2554                                 if (ob->id.lib && ob->proxy_from) {
2555                                         // printf("pose proxy copy, lib ob %s proxy %s\n", ob->id.name, ob->proxy_from->id.name);
2556                                         copy_pose_result(ob->pose, ob->proxy_from->pose);
2557                                 }
2558                                 else {
2559                                         where_is_pose(scene, ob);
2560                                 }
2561                                 break;
2562
2563                         case OB_MBALL:
2564                                 makeDispListMBall(scene, ob);
2565                                 break;
2566
2567                         case OB_CURVE:
2568                         case OB_SURF:
2569                         case OB_FONT:
2570                                 makeDispListCurveTypes(scene, ob, 0);
2571                                 break;
2572                                 
2573                         case OB_LATTICE:
2574                                 lattice_calc_modifiers(scene, ob);
2575                                 break;
2576                         }
2577
2578
2579                         if (ob->particlesystem.first) {
2580                                 ParticleSystem *tpsys, *psys;
2581                                 DerivedMesh *dm;
2582                                 ob->transflag &= ~OB_DUPLIPARTS;
2583                                 
2584                                 psys= ob->particlesystem.first;
2585                                 while (psys) {
2586                                         if (psys_check_enabled(ob, psys)) {
2587                                                 /* check use of dupli objects here */
2588                                                 if (psys->part && (psys->part->draw_as == PART_DRAW_REND || G.rendering) &&
2589                                                         ((psys->part->ren_as == PART_DRAW_OB && psys->part->dup_ob)
2590                                                         || (psys->part->ren_as == PART_DRAW_GR && psys->part->dup_group)))
2591                                                         ob->transflag |= OB_DUPLIPARTS;
2592
2593                                                 particle_system_update(scene, ob, psys);
2594                                                 psys= psys->next;
2595                                         }
2596                                         else if (psys->flag & PSYS_DELETE) {
2597                                                 tpsys=psys->next;
2598                                                 BLI_remlink(&ob->particlesystem, psys);
2599                                                 psys_free(ob,psys);
2600                                                 psys= tpsys;
2601                                         }
2602                                         else
2603                                                 psys= psys->next;
2604                                 }
2605
2606                                 if (G.rendering && ob->transflag & OB_DUPLIPARTS) {
2607                                         /* this is to make sure we get render level duplis in groups:
2608                                          * the derivedmesh must be created before init_render_mesh,
2609                                          * since object_duplilist does dupliparticles before that */
2610                                         dm = mesh_create_derived_render(scene, ob, CD_MASK_BAREMESH|CD_MASK_MTFACE|CD_MASK_MCOL);
2611                                         dm->release(dm);
2612
2613                                         for (psys=ob->particlesystem.first; psys; psys=psys->next)
2614                                                 psys_get_modifier(ob, psys)->flag &= ~eParticleSystemFlag_psys_updated;
2615                                 }
2616                         }
2617
2618                         /* check if quick cache is needed */
2619                         BKE_ptcache_ids_from_object(&pidlist, ob, scene, MAX_DUPLI_RECUR);
2620
2621                         for (pid=pidlist.first; pid; pid=pid->next) {
2622                                 if ((pid->cache->flag & PTCACHE_BAKED)
2623                                         || (pid->cache->flag & PTCACHE_QUICK_CACHE)==0)
2624                                         continue;
2625
2626                                 if (pid->cache->flag & PTCACHE_OUTDATED || (pid->cache->flag & PTCACHE_SIMULATION_VALID)==0) {
2627                                         scene->physics_settings.quick_cache_step =
2628                                                 scene->physics_settings.quick_cache_step ?
2629                                                 MIN2(scene->physics_settings.quick_cache_step, pid->cache->step) :
2630                                                 pid->cache->step;
2631                                 }
2632                         }
2633
2634                         BLI_freelistN(&pidlist);
2635                 }
2636
2637                 /* the no-group proxy case, we call update */
2638                 if (ob->proxy && ob->proxy_group==NULL) {
2639                         /* set pointer in library proxy target, for copying, but restore it */
2640                         ob->proxy->proxy_from= ob;
2641                         // printf("call update, lib ob %s proxy %s\n", ob->proxy->id.name, ob->id.name);
2642                         object_handle_update(scene, ob->proxy);
2643                 }
2644         
2645                 ob->recalc &= ~OB_RECALC_ALL;
2646         }
2647
2648         /* the case when this is a group proxy, object_update is called in group.c */
2649         if (ob->proxy) {
2650                 ob->proxy->proxy_from= ob;
2651                 // printf("set proxy pointer for later group stuff %s\n", ob->id.name);
2652         }
2653 }
2654
2655 void object_sculpt_modifiers_changed(Object *ob)
2656 {
2657         SculptSession *ss= ob->sculpt;
2658
2659         if (!ss->cache) {
2660                 /* we free pbvh on changes, except during sculpt since it can't deal with
2661                  * changing PVBH node organization, we hope topology does not change in
2662                  * the meantime .. weak */
2663                 if (ss->pbvh) {
2664                                 BLI_pbvh_free(ss->pbvh);
2665                                 ss->pbvh= NULL;
2666                 }
2667
2668                 free_sculptsession_deformMats(ob->sculpt);
2669         } else {
2670                 PBVHNode **nodes;
2671                 int n, totnode;
2672
2673                 BLI_pbvh_search_gather(ss->pbvh, NULL, NULL, &nodes, &totnode);
2674
2675                 for (n = 0; n < totnode; n++)
2676                         BLI_pbvh_node_mark_update(nodes[n]);
2677
2678                 MEM_freeN(nodes);
2679         }
2680 }
2681
2682 int give_obdata_texspace(Object *ob, short **texflag, float **loc, float **size, float **rot)
2683 {
2684         
2685         if (ob->data==NULL)
2686                 return 0;
2687         
2688         switch (GS(((ID *)ob->data)->name)) {
2689         case ID_ME:
2690         {
2691                 Mesh *me= ob->data;
2692                 if (texflag)    *texflag = &me->texflag;
2693                 if (loc)                *loc = me->loc;
2694                 if (size)               *size = me->size;
2695                 if (rot)                *rot = me->rot;
2696                 break;
2697         }
2698         case ID_CU:
2699         {
2700                 Curve *cu= ob->data;
2701                 if (texflag)    *texflag = &cu->texflag;
2702                 if (loc)                *loc = cu->loc;
2703                 if (size)               *size = cu->size;
2704                 if (rot)                *rot = cu->rot;
2705                 break;
2706         }
2707         case ID_MB:
2708         {
2709                 MetaBall *mb= ob->data;
2710                 if (texflag)    *texflag = &mb->texflag;
2711                 if (loc)                *loc = mb->loc;
2712                 if (size)               *size = mb->size;
2713                 if (rot)                *rot = mb->rot;
2714                 break;
2715         }
2716         default:
2717                 return 0;
2718         }
2719         return 1;
2720 }
2721
2722 /*
2723  * Test a bounding box for ray intersection
2724  * assumes the ray is already local to the boundbox space
2725  */
2726 int ray_hit_boundbox(struct BoundBox *bb, float ray_start[3], float ray_normal[3])
2727 {
2728         static int triangle_indexes[12][3] = {{0, 1, 2}, {0, 2, 3},
2729                                                                                   {3, 2, 6}, {3, 6, 7},
2730                                                                                   {1, 2, 6}, {1, 6, 5}, 
2731                                                                                   {5, 6, 7}, {4, 5, 7},
2732                                                                                   {0, 3, 7}, {0, 4, 7},
2733                                                                                   {0, 1, 5}, {0, 4, 5}};
2734         int result = 0;
2735         int i;
2736         
2737         for (i = 0; i < 12 && result == 0; i++)
2738         {
2739                 float lambda;
2740                 int v1, v2, v3;
2741                 v1 = triangle_indexes[i][0];
2742                 v2 = triangle_indexes[i][1];
2743                 v3 = triangle_indexes[i][2];
2744                 result = isect_ray_tri_v3(ray_start, ray_normal, bb->vec[v1], bb->vec[v2], bb->vec[v3], &lambda, NULL);
2745         }
2746         
2747         return result;
2748 }
2749
2750 static int pc_cmp(void *a, void *b)
2751 {
2752         LinkData *ad = a, *bd = b;
2753         if (GET_INT_FROM_POINTER(ad->data) > GET_INT_FROM_POINTER(bd->data))
2754                 return 1;
2755         else return 0;
2756 }
2757
2758 int object_insert_ptcache(Object *ob) 
2759 {
2760         LinkData *link = NULL;
2761         int i = 0;
2762
2763         BLI_sortlist(&ob->pc_ids, pc_cmp);
2764
2765         for (link=ob->pc_ids.first, i = 0; link; link=link->next, i++) 
2766         {
2767                 int index = GET_INT_FROM_POINTER(link->data);
2768
2769                 if (i < index)
2770                         break;
2771         }
2772
2773         link = MEM_callocN(sizeof(LinkData), "PCLink");
2774         link->data = SET_INT_IN_POINTER(i);
2775         BLI_addtail(&ob->pc_ids, link);
2776
2777         return i;
2778 }
2779
2780 #if 0
2781 static int pc_findindex(ListBase *listbase, int index)
2782 {
2783         LinkData *link= NULL;
2784         int number= 0;
2785         
2786         if (listbase == NULL) return -1;
2787         
2788         link= listbase->first;
2789         while (link) {
2790                 if ((int)link->data == index)
2791                         return number;
2792                 
2793                 number++;
2794                 link= link->next;
2795         }
2796         
2797         return -1;
2798 }
2799
2800 void object_delete_ptcache(Object *ob, int index) 
2801 {
2802         int list_index = pc_findindex(&ob->pc_ids, index);
2803         LinkData *link = BLI_findlink(&ob->pc_ids, list_index);
2804         BLI_freelinkN(&ob->pc_ids, link);
2805 }
2806 #endif
2807
2808 /* shape key utility function */
2809
2810 /************************* Mesh ************************/
2811 static KeyBlock *insert_meshkey(Scene *scene, Object *ob, const char *name, int from_mix)
2812 {
2813         Mesh *me= ob->data;
2814         Key *key= me->key;
2815         KeyBlock *kb;
2816         int newkey= 0;
2817
2818         if (key == NULL) {
2819                 key= me->key= add_key((ID *)me);
2820                 key->type= KEY_RELATIVE;
2821                 newkey= 1;
2822         }
2823
2824         if (newkey || from_mix==FALSE) {
2825                 /* create from mesh */
2826                 kb= add_keyblock(key, name);
2827                 mesh_to_key(me, kb);
2828         }
2829         else {
2830                 /* copy from current values */
2831                 float *data= do_ob_key(scene, ob);
2832
2833                 /* create new block with prepared data */
2834                 kb= add_keyblock(key, name);
2835                 kb->data= data;
2836                 kb->totelem= me->totvert;
2837         }
2838
2839         return kb;
2840 }
2841 /************************* Lattice ************************/
2842 static KeyBlock *insert_lattkey(Scene *scene, Object *ob, const char *name, int from_mix)
2843 {
2844         Lattice *lt= ob->data;
2845         Key *key= lt->key;
2846         KeyBlock *kb;
2847         int newkey= 0;
2848
2849         if (key==NULL) {
2850                 key= lt->key= add_key( (ID *)lt);
2851                 key->type= KEY_RELATIVE;
2852                 newkey= 1;
2853         }
2854
2855         if (newkey || from_mix==FALSE) {
2856                 kb= add_keyblock(key, name);
2857                 if (!newkey) {
2858                         KeyBlock *basekb= (KeyBlock *)key->block.first;
2859                         kb->data= MEM_dupallocN(basekb->data);
2860                         kb->totelem= basekb->totelem;
2861                 }
2862                 else {
2863                         latt_to_key(lt, kb);
2864                 }
2865         }
2866         else {
2867                 /* copy from current values */
2868                 float *data= do_ob_key(scene, ob);
2869
2870                 /* create new block with prepared data */
2871                 kb= add_keyblock(key, name);
2872                 kb->totelem= lt->pntsu*lt->pntsv*lt->pntsw;
2873                 kb->data= data;
2874         }
2875
2876         return kb;
2877 }
2878 /************************* Curve ************************/
2879 static KeyBlock *insert_curvekey(Scene *scene, Object *ob, const char *name, int from_mix)
2880 {
2881         Curve *cu= ob->data;
2882         Key *key= cu->key;
2883         KeyBlock *kb;
2884         ListBase *lb= BKE_curve_nurbs(cu);
2885         int newkey= 0;
2886
2887         if (key==NULL) {
2888                 key= cu->key= add_key( (ID *)cu);
2889                 key->type = KEY_RELATIVE;
2890                 newkey= 1;
2891         }
2892
2893         if (newkey || from_mix==FALSE) {
2894                 /* create from curve */
2895                 kb= add_keyblock(key, name);
2896                 if (!newkey) {
2897                         KeyBlock *basekb= (KeyBlock *)key->block.first;
2898                         kb->data= MEM_dupallocN(basekb->data);
2899                         kb->totelem= basekb->totelem;
2900                 }
2901                 else {
2902                         curve_to_key(cu, kb, lb);
2903                 }
2904         }
2905         else {
2906                 /* copy from current values */
2907                 float *data= do_ob_key(scene, ob);
2908
2909                 /* create new block with prepared data */
2910                 kb= add_keyblock(key, name);
2911                 kb->totelem= count_curveverts(lb);
2912                 kb->data= data;
2913         }
2914
2915         return kb;
2916 }
2917
2918 KeyBlock *object_insert_shape_key(Scene *scene, Object *ob, const char *name, int from_mix)
2919 {
2920         if (ob->type==OB_MESH)                                   return insert_meshkey(scene, ob, name, from_mix);
2921         else if ELEM(ob->type, OB_CURVE, OB_SURF)return insert_curvekey(scene, ob, name, from_mix);
2922         else if (ob->type==OB_LATTICE)                   return insert_lattkey(scene, ob, name, from_mix);
2923         else                                                                     return NULL;
2924 }
2925
2926 /* most important if this is modified it should _always_ return True, in certain
2927  * cases false positives are hard to avoid (shape keys for eg)
2928  */
2929 int object_is_modified(Scene *scene, Object *ob)
2930 {
2931         int flag= 0;
2932
2933         if (ob_get_key(ob)) {
2934                 flag |= eModifierMode_Render;
2935         }
2936         else {
2937                 ModifierData *md;
2938                 /* cloth */
2939                 for (md=modifiers_getVirtualModifierList(ob);
2940                      md && (flag != (eModifierMode_Render | eModifierMode_Realtime));
2941                      md=md->next)
2942                 {
2943                         if ((flag & eModifierMode_Render) == 0  && modifier_isEnabled(scene, md, eModifierMode_Render)) {
2944                                 flag |= eModifierMode_Render;
2945                         }
2946
2947                         if ((flag & eModifierMode_Realtime) == 0        && modifier_isEnabled(scene, md, eModifierMode_Realtime)) {
2948                                 flag |= eModifierMode_Realtime;
2949                         }
2950                 }
2951         }
2952
2953         return flag;
2954 }
2955
2956 static void copy_object__forwardModifierLinks(void *UNUSED(userData), Object *UNUSED(ob), ID **idpoin)
2957 {
2958         /* this is copied from ID_NEW; it might be better to have a macro */
2959         if (*idpoin && (*idpoin)->newid) *idpoin = (*idpoin)->newid;
2960 }
2961
2962 void object_relink(Object *ob)
2963 {
2964         if (ob->id.lib)
2965                 return;
2966
2967         relink_constraints(&ob->constraints);
2968         if (ob->pose) {
2969                 bPoseChannel *chan;
2970                 for (chan = ob->pose->chanbase.first; chan; chan=chan->next) {
2971                         relink_constraints(&chan->constraints);
2972                 }
2973         }
2974         modifiers_foreachIDLink(ob, copy_object__forwardModifierLinks, NULL);
2975
2976         if (ob->adt)
2977                 BKE_relink_animdata(ob->adt);
2978
2979         ID_NEW(ob->parent);
2980
2981         ID_NEW(ob->proxy);
2982         ID_NEW(ob->proxy_group);
2983 }
2984
2985 MovieClip *object_get_movieclip(Scene *scene, Object *ob, int use_default)
2986 {
2987         MovieClip *clip= use_default ? scene->clip : NULL;
2988         bConstraint *con= ob->constraints.first, *scon= NULL;
2989
2990         while (con) {
2991                 if (con->type==CONSTRAINT_TYPE_CAMERASOLVER) {
2992                         if (scon==NULL || (scon->flag&CONSTRAINT_OFF))
2993                                 scon= con;
2994                 }
2995
2996                 con= con->next;
2997         }
2998
2999         if (scon) {
3000                 bCameraSolverConstraint *solver= scon->data;
3001                 if ((solver->flag&CAMERASOLVER_ACTIVECLIP)==0)
3002                         clip= solver->clip;
3003                 else
3004                         clip= scene->clip;
3005         }
3006
3007         return clip;
3008 }