bugfix [#24376] Fly mode disturbs the rotation or scale of the camera object
[blender.git] / source / blender / blenkernel / intern / object.c
1 /* object.c
2  *
3  * 
4  * $Id$
5  *
6  * ***** BEGIN GPL LICENSE BLOCK *****
7  *
8  * This program is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU General Public License
10  * as published by the Free Software Foundation; either version 2
11  * of the License, or (at your option) any later version.
12  *
13  * This program is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16  * GNU General Public License for more details.
17  *
18  * You should have received a copy of the GNU General Public License
19  * along with this program; if not, write to the Free Software Foundation,
20  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
21  *
22  * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
23  * All rights reserved.
24  *
25  * The Original Code is: all of this file.
26  *
27  * Contributor(s): none yet.
28  *
29  * ***** END GPL LICENSE BLOCK *****
30  */
31
32 #include <string.h>
33 #include <math.h>
34 #include <stdio.h>                      
35
36 #include "MEM_guardedalloc.h"
37
38 #include "DNA_anim_types.h"
39 #include "DNA_armature_types.h"
40 #include "DNA_camera_types.h"
41 #include "DNA_constraint_types.h"
42 #include "DNA_group_types.h"
43 #include "DNA_key_types.h"
44 #include "DNA_lamp_types.h"
45 #include "DNA_lattice_types.h"
46 #include "DNA_material_types.h"
47 #include "DNA_meta_types.h"
48 #include "DNA_meshdata_types.h"
49 #include "DNA_scene_types.h"
50 #include "DNA_screen_types.h"
51 #include "DNA_sequence_types.h"
52 #include "DNA_space_types.h"
53 #include "DNA_view3d_types.h"
54 #include "DNA_world_types.h"
55
56 #include "BLI_blenlib.h"
57 #include "BLI_editVert.h"
58 #include "BLI_math.h"
59 #include "BLI_pbvh.h"
60
61 #include "BKE_utildefines.h"
62
63 #include "BKE_main.h"
64 #include "BKE_global.h"
65
66 #include "BKE_armature.h"
67 #include "BKE_action.h"
68 #include "BKE_bullet.h"
69 #include "BKE_colortools.h"
70 #include "BKE_deform.h"
71 #include "BKE_DerivedMesh.h"
72 #include "BKE_animsys.h"
73 #include "BKE_anim.h"
74 #include "BKE_constraint.h"
75 #include "BKE_curve.h"
76 #include "BKE_displist.h"
77 #include "BKE_effect.h"
78 #include "BKE_fcurve.h"
79 #include "BKE_group.h"
80 #include "BKE_icons.h"
81 #include "BKE_key.h"
82 #include "BKE_lattice.h"
83 #include "BKE_library.h"
84 #include "BKE_mesh.h"
85 #include "BKE_mball.h"
86 #include "BKE_modifier.h"
87 #include "BKE_object.h"
88 #include "BKE_paint.h"
89 #include "BKE_particle.h"
90 #include "BKE_pointcache.h"
91 #include "BKE_property.h"
92 #include "BKE_sca.h"
93 #include "BKE_scene.h"
94 #include "BKE_sequencer.h"
95 #include "BKE_softbody.h"
96
97 #include "LBM_fluidsim.h"
98
99 #ifndef DISABLE_PYTHON
100 #include "BPY_extern.h"
101 #endif
102
103 #include "GPU_material.h"
104
105 /* Local function protos */
106 static void solve_parenting (Scene *scene, Object *ob, Object *par, float obmat[][4], float slowmat[][4], int simul);
107
108 float originmat[3][3];  /* after where_is_object(), can be used in other functions (bad!) */
109
110 void clear_workob(Object *workob)
111 {
112         memset(workob, 0, sizeof(Object));
113         
114         workob->size[0]= workob->size[1]= workob->size[2]= 1.0f;
115         workob->rotmode= ROT_MODE_EUL;
116 }
117
118 void copy_baseflags(struct Scene *scene)
119 {
120         Base *base= scene->base.first;
121         
122         while(base) {
123                 base->object->flag= base->flag;
124                 base= base->next;
125         }
126 }
127
128 void copy_objectflags(struct Scene *scene)
129 {
130         Base *base= scene->base.first;
131         
132         while(base) {
133                 base->flag= base->object->flag;
134                 base= base->next;
135         }
136 }
137
138 void update_base_layer(struct Scene *scene, Object *ob)
139 {
140         Base *base= scene->base.first;
141
142         while (base) {
143                 if (base->object == ob) base->lay= ob->lay;
144                 base= base->next;
145         }
146 }
147
148 void object_free_particlesystems(Object *ob)
149 {
150         while(ob->particlesystem.first){
151                 ParticleSystem *psys = ob->particlesystem.first;
152                 
153                 BLI_remlink(&ob->particlesystem,psys);
154                 
155                 psys_free(ob,psys);
156         }
157 }
158
159 void object_free_softbody(Object *ob)
160 {
161         if(ob->soft) {
162                 sbFree(ob->soft);
163                 ob->soft= NULL;
164         }
165 }
166
167 void object_free_bulletsoftbody(Object *ob)
168 {
169         if(ob->bsoft) {
170                 bsbFree(ob->bsoft);
171                 ob->bsoft= NULL;
172         }
173 }
174
175 void object_free_modifiers(Object *ob)
176 {
177         while (ob->modifiers.first) {
178                 ModifierData *md = ob->modifiers.first;
179                 
180                 BLI_remlink(&ob->modifiers, md);
181                 
182                 modifier_free(md);
183         }
184
185         /* particle modifiers were freed, so free the particlesystems as well */
186         object_free_particlesystems(ob);
187
188         /* same for softbody */
189         object_free_softbody(ob);
190 }
191
192 void object_link_modifiers(struct Object *ob, struct Object *from)
193 {
194         ModifierData *md;
195         object_free_modifiers(ob);
196
197         for (md=from->modifiers.first; md; md=md->next) {
198                 ModifierData *nmd = NULL;
199
200                 if(ELEM4(md->type, eModifierType_Hook, eModifierType_Softbody, eModifierType_ParticleInstance, eModifierType_Collision)) continue;
201
202                 nmd = modifier_new(md->type);
203                 modifier_copyData(md, nmd);
204                 BLI_addtail(&ob->modifiers, nmd);
205         }
206
207         copy_object_particlesystems(from, ob);
208         copy_object_softbody(from, ob);
209
210         // TODO: smoke?, cloth?
211 }
212
213 /* here we will collect all local displist stuff */
214 /* also (ab)used in depsgraph */
215 void object_free_display(Object *ob)
216 {
217         if(ob->derivedDeform) {
218                 ob->derivedDeform->needsFree = 1;
219                 ob->derivedDeform->release(ob->derivedDeform);
220                 ob->derivedDeform= NULL;
221         }
222         if(ob->derivedFinal) {
223                 ob->derivedFinal->needsFree = 1;
224                 ob->derivedFinal->release(ob->derivedFinal);
225                 ob->derivedFinal= NULL;
226         }
227         
228         freedisplist(&ob->disp);
229 }
230
231 void free_sculptsession(Object *ob)
232 {
233         if(ob && ob->sculpt) {
234                 SculptSession *ss = ob->sculpt;
235                 DerivedMesh *dm= ob->derivedFinal;
236
237                 if(ss->pbvh)
238                         BLI_pbvh_free(ss->pbvh);
239                 if(dm && dm->getPBVH)
240                         dm->getPBVH(NULL, dm); /* signal to clear */
241
242                 if(ss->texcache)
243                         MEM_freeN(ss->texcache);
244
245                 if(ss->layer_co)
246                         MEM_freeN(ss->layer_co);
247
248                 MEM_freeN(ss);
249
250                 ob->sculpt = NULL;
251         }
252 }
253
254 /* do not free object itself */
255 void free_object(Object *ob)
256 {
257         int a;
258         
259         object_free_display(ob);
260         
261         /* disconnect specific data */
262         if(ob->data) {
263                 ID *id= ob->data;
264                 id->us--;
265                 if(id->us==0) {
266                         if(ob->type==OB_MESH) unlink_mesh(ob->data);
267                         else if(ob->type==OB_CURVE) unlink_curve(ob->data);
268                         else if(ob->type==OB_MBALL) unlink_mball(ob->data);
269                 }
270                 ob->data= 0;
271         }
272         
273         for(a=0; a<ob->totcol; a++) {
274                 if(ob->mat[a]) ob->mat[a]->id.us--;
275         }
276         if(ob->mat) MEM_freeN(ob->mat);
277         if(ob->matbits) MEM_freeN(ob->matbits);
278         ob->mat= 0;
279         ob->matbits= 0;
280         if(ob->bb) MEM_freeN(ob->bb); 
281         ob->bb= 0;
282         if(ob->path) free_path(ob->path); 
283         ob->path= 0;
284         if(ob->adt) BKE_free_animdata((ID *)ob);
285         if(ob->poselib) ob->poselib->id.us--;
286         if(ob->gpd) ((ID *)ob->gpd)->us--;
287         if(ob->defbase.first)
288                 BLI_freelistN(&ob->defbase);
289         if(ob->pose)
290                 free_pose(ob->pose);
291         if(ob->mpath)
292                 animviz_free_motionpath(ob->mpath);
293         free_properties(&ob->prop);
294         object_free_modifiers(ob);
295         
296         free_sensors(&ob->sensors);
297         free_controllers(&ob->controllers);
298         free_actuators(&ob->actuators);
299         
300         free_constraints(&ob->constraints);
301         
302         free_partdeflect(ob->pd);
303
304         if(ob->soft) sbFree(ob->soft);
305         if(ob->bsoft) bsbFree(ob->bsoft);
306         if(ob->gpulamp.first) GPU_lamp_free(ob);
307
308         free_sculptsession(ob);
309
310         if(ob->pc_ids.first) BLI_freelistN(&ob->pc_ids);
311 }
312
313 static void unlink_object__unlinkModifierLinks(void *userData, Object *ob, Object **obpoin)
314 {
315         Object *unlinkOb = userData;
316
317         if (*obpoin==unlinkOb) {
318                 *obpoin = NULL;
319                 ob->recalc |= OB_RECALC_ALL; // XXX: should this just be OB_RECALC_DATA?
320         }
321 }
322
323 void unlink_object(Object *ob)
324 {
325         Main *bmain= G.main;
326         Object *obt;
327         Material *mat;
328         World *wrld;
329         bScreen *sc;
330         Scene *sce;
331         Curve *cu;
332         Tex *tex;
333         Group *group;
334         Camera *camera;
335         bConstraint *con;
336         //bActionStrip *strip; // XXX animsys 
337         ModifierData *md;
338         ARegion *ar;
339         RegionView3D *rv3d;
340         int a, found;
341         
342         unlink_controllers(&ob->controllers);
343         unlink_actuators(&ob->actuators);
344         
345         /* check all objects: parents en bevels and fields, also from libraries */
346         // FIXME: need to check all animation blocks (drivers)
347         obt= bmain->object.first;
348         while(obt) {
349                 if(obt->proxy==ob)
350                         obt->proxy= NULL;
351                 if(obt->proxy_from==ob) {
352                         obt->proxy_from= NULL;
353                         obt->recalc |= OB_RECALC_OB;
354                 }
355                 if(obt->proxy_group==ob)
356                         obt->proxy_group= NULL;
357                 
358                 if(obt->parent==ob) {
359                         obt->parent= NULL;
360                         obt->recalc |= OB_RECALC_ALL;
361                 }
362                 
363                 modifiers_foreachObjectLink(obt, unlink_object__unlinkModifierLinks, ob);
364                 
365                 if ELEM(obt->type, OB_CURVE, OB_FONT) {
366                         cu= obt->data;
367
368                         if(cu->bevobj==ob) {
369                                 cu->bevobj= NULL;
370                                 obt->recalc |= OB_RECALC_ALL;
371                         }
372                         if(cu->taperobj==ob) {
373                                 cu->taperobj= NULL;
374                                 obt->recalc |= OB_RECALC_ALL;
375                         }
376                         if(cu->textoncurve==ob) {
377                                 cu->textoncurve= NULL;
378                                 obt->recalc |= OB_RECALC_ALL;
379                         }
380                 }
381                 else if(obt->type==OB_ARMATURE && obt->pose) {
382                         bPoseChannel *pchan;
383                         for(pchan= obt->pose->chanbase.first; pchan; pchan= pchan->next) {
384                                 for (con = pchan->constraints.first; con; con=con->next) {
385                                         bConstraintTypeInfo *cti= constraint_get_typeinfo(con);
386                                         ListBase targets = {NULL, NULL};
387                                         bConstraintTarget *ct;
388                                         
389                                         if (cti && cti->get_constraint_targets) {
390                                                 cti->get_constraint_targets(con, &targets);
391                                                 
392                                                 for (ct= targets.first; ct; ct= ct->next) {
393                                                         if (ct->tar == ob) {
394                                                                 ct->tar = NULL;
395                                                                 strcpy(ct->subtarget, "");
396                                                                 obt->recalc |= OB_RECALC_DATA;
397                                                         }
398                                                 }
399                                                 
400                                                 if (cti->flush_constraint_targets)
401                                                         cti->flush_constraint_targets(con, &targets, 0);
402                                         }
403                                 }
404                                 if(pchan->custom==ob)
405                                         pchan->custom= NULL;
406                         }
407                 } else if(ELEM(OB_MBALL, ob->type, obt->type)) {
408                         if(is_mball_basis_for(obt, ob))
409                                 obt->recalc|= OB_RECALC_DATA;
410                 }
411                 
412                 sca_remove_ob_poin(obt, ob);
413                 
414                 for (con = obt->constraints.first; con; con=con->next) {
415                         bConstraintTypeInfo *cti= constraint_get_typeinfo(con);
416                         ListBase targets = {NULL, NULL};
417                         bConstraintTarget *ct;
418                         
419                         if (cti && cti->get_constraint_targets) {
420                                 cti->get_constraint_targets(con, &targets);
421                                 
422                                 for (ct= targets.first; ct; ct= ct->next) {
423                                         if (ct->tar == ob) {
424                                                 ct->tar = NULL;
425                                                 strcpy(ct->subtarget, "");
426                                                 obt->recalc |= OB_RECALC_DATA;
427                                         }
428                                 }
429                                 
430                                 if (cti->flush_constraint_targets)
431                                         cti->flush_constraint_targets(con, &targets, 0);
432                         }
433                 }
434                 
435                 /* object is deflector or field */
436                 if(ob->pd) {
437                         if(obt->soft)
438                                 obt->recalc |= OB_RECALC_DATA;
439
440                         /* cloth */
441                         for(md=obt->modifiers.first; md; md=md->next)
442                                 if(md->type == eModifierType_Cloth)
443                                         obt->recalc |= OB_RECALC_DATA;
444                 }
445                 
446                 /* strips */
447 #if 0 // XXX old animation system
448                 for(strip= obt->nlastrips.first; strip; strip= strip->next) {
449                         if(strip->object==ob)
450                                 strip->object= NULL;
451                         
452                         if(strip->modifiers.first) {
453                                 bActionModifier *amod;
454                                 for(amod= strip->modifiers.first; amod; amod= amod->next)
455                                         if(amod->ob==ob)
456                                                 amod->ob= NULL;
457                         }
458                 }
459 #endif // XXX old animation system
460
461                 /* particle systems */
462                 if(obt->particlesystem.first) {
463                         ParticleSystem *tpsys= obt->particlesystem.first;
464                         for(; tpsys; tpsys=tpsys->next) {
465                                 BoidState *state = NULL;
466                                 BoidRule *rule = NULL;
467
468                                 ParticleTarget *pt = tpsys->targets.first;
469                                 for(; pt; pt=pt->next) {
470                                         if(pt->ob==ob) {
471                                                 pt->ob = NULL;
472                                                 obt->recalc |= OB_RECALC_DATA;
473                                                 break;
474                                         }
475                                 }
476
477                                 if(tpsys->target_ob==ob) {
478                                         tpsys->target_ob= NULL;
479                                         obt->recalc |= OB_RECALC_DATA;
480                                 }
481
482                                 if(tpsys->part->dup_ob==ob)
483                                         tpsys->part->dup_ob= NULL;
484
485                                 if(tpsys->part->phystype==PART_PHYS_BOIDS) {
486                                         ParticleData *pa;
487                                         BoidParticle *bpa;
488                                         int p;
489
490                                         for(p=0,pa=tpsys->particles; p<tpsys->totpart; p++,pa++) {
491                                                 bpa = pa->boid;
492                                                 if(bpa->ground == ob)
493                                                         bpa->ground = NULL;
494                                         }
495                                 }
496                                 if(tpsys->part->boids) {
497                                         for(state = tpsys->part->boids->states.first; state; state=state->next) {
498                                                 for(rule = state->rules.first; rule; rule=rule->next) {
499                                                         if(rule->type==eBoidRuleType_Avoid) {
500                                                                 BoidRuleGoalAvoid *gabr = (BoidRuleGoalAvoid*)rule;
501                                                                 if(gabr->ob==ob)
502                                                                         gabr->ob= NULL;
503                                                         }
504                                                         else if(rule->type==eBoidRuleType_FollowLeader) {
505                                                                 BoidRuleFollowLeader *flbr = (BoidRuleFollowLeader*)rule;
506                                                                 if(flbr->ob==ob)
507                                                                         flbr->ob= NULL;
508                                                         }
509                                                 }
510                                         }
511                                 }
512                         }
513                         if(ob->pd)
514                                 obt->recalc |= OB_RECALC_DATA;
515                 }
516
517                 obt= obt->id.next;
518         }
519         
520         /* materials */
521         mat= bmain->mat.first;
522         while(mat) {
523         
524                 for(a=0; a<MAX_MTEX; a++) {
525                         if(mat->mtex[a] && ob==mat->mtex[a]->object) {
526                                 /* actually, test for lib here... to do */
527                                 mat->mtex[a]->object= NULL;
528                         }
529                 }
530
531                 mat= mat->id.next;
532         }
533         
534         /* textures */
535         for(tex= bmain->tex.first; tex; tex= tex->id.next) {
536                 if(tex->env && (ob==tex->env->object)) tex->env->object= NULL;
537                 if(tex->pd  && (ob==tex->pd->object))  tex->pd->object= NULL;
538                 if(tex->vd  && (ob==tex->vd->object))  tex->vd->object= NULL;
539         }
540
541         /* worlds */
542         wrld= bmain->world.first;
543         while(wrld) {
544                 if(wrld->id.lib==NULL) {
545                         for(a=0; a<MAX_MTEX; a++) {
546                                 if(wrld->mtex[a] && ob==wrld->mtex[a]->object)
547                                         wrld->mtex[a]->object= NULL;
548                         }
549                 }
550                 
551                 wrld= wrld->id.next;
552         }
553                 
554         /* scenes */
555         sce= bmain->scene.first;
556         while(sce) {
557                 if(sce->id.lib==NULL) {
558                         if(sce->camera==ob) sce->camera= NULL;
559                         if(sce->toolsettings->skgen_template==ob) sce->toolsettings->skgen_template = NULL;
560                         if(sce->toolsettings->particle.object==ob) sce->toolsettings->particle.object= NULL;
561
562 #ifdef DURIAN_CAMERA_SWITCH
563                         {
564                                 TimeMarker *m;
565
566                                 for (m= sce->markers.first; m; m= m->next) {
567                                         if(m->camera==ob)
568                                                 m->camera= NULL;
569                                 }
570                         }
571 #endif
572                         if(sce->ed) {
573                                 Sequence *seq;
574                                 SEQ_BEGIN(sce->ed, seq)
575                                         if(seq->scene_camera==ob) {
576                                                 seq->scene_camera= NULL;
577                                         }
578                                 SEQ_END
579                         }
580                 }
581
582                 sce= sce->id.next;
583         }
584         
585 #if 0 // XXX old animation system
586         /* ipos */
587         ipo= bmain->ipo.first;
588         while(ipo) {
589                 if(ipo->id.lib==NULL) {
590                         IpoCurve *icu;
591                         for(icu= ipo->curve.first; icu; icu= icu->next) {
592                                 if(icu->driver && icu->driver->ob==ob)
593                                         icu->driver->ob= NULL;
594                         }
595                 }
596                 ipo= ipo->id.next;
597         }
598 #endif // XXX old animation system
599         
600         /* screens */
601         sc= bmain->screen.first;
602         while(sc) {
603                 ScrArea *sa= sc->areabase.first;
604                 while(sa) {
605                         SpaceLink *sl;
606
607                         for (sl= sa->spacedata.first; sl; sl= sl->next) {
608                                 if(sl->spacetype==SPACE_VIEW3D) {
609                                         View3D *v3d= (View3D*) sl;
610
611                                         found= 0;
612                                         if(v3d->camera==ob) {
613                                                 v3d->camera= NULL;
614                                                 found= 1;
615                                         }
616                                         if(v3d->localvd && v3d->localvd->camera==ob ) {
617                                                 v3d->localvd->camera= NULL;
618                                                 found += 2;
619                                         }
620
621                                         if (found) {
622                                                 if (sa->spacetype == SPACE_VIEW3D) {
623                                                         for (ar= sa->regionbase.first; ar; ar= ar->next) {
624                                                                 if (ar->regiontype==RGN_TYPE_WINDOW) {
625                                                                         rv3d= (RegionView3D *)ar->regiondata;
626                                                                         if (found == 1 || found == 3) {
627                                                                                 if (rv3d->persp == RV3D_CAMOB)
628                                                                                         rv3d->persp= RV3D_PERSP;
629                                                                         }
630                                                                         if (found == 2 || found == 3) {
631                                                                                 if (rv3d->localvd && rv3d->localvd->persp == RV3D_CAMOB)
632                                                                                         rv3d->localvd->persp= RV3D_PERSP;
633                                                                         }
634                                                                 }
635                                                         }
636                                                 }
637                                         }
638                                 }
639                                 else if(sl->spacetype==SPACE_OUTLINER) {
640                                         SpaceOops *so= (SpaceOops *)sl;
641
642                                         if(so->treestore) {
643                                                 TreeStoreElem *tselem= so->treestore->data;
644                                                 int a;
645                                                 for(a=0; a<so->treestore->usedelem; a++, tselem++) {
646                                                         if(tselem->id==(ID *)ob) tselem->id= NULL;
647                                                 }
648                                         }
649                                 }
650                                 else if(sl->spacetype==SPACE_BUTS) {
651                                         SpaceButs *sbuts= (SpaceButs *)sl;
652
653                                         if(sbuts->pinid==(ID *)ob) {
654                                                 sbuts->flag&= ~SB_PIN_CONTEXT;
655                                                 sbuts->pinid= NULL;
656                                         }
657                                 }
658                         }
659
660                         sa= sa->next;
661                 }
662                 sc= sc->id.next;
663         }
664
665         /* groups */
666         group= bmain->group.first;
667         while(group) {
668                 rem_from_group(group, ob, NULL, NULL);
669                 group= group->id.next;
670         }
671         
672         /* cameras */
673         camera= bmain->camera.first;
674         while(camera) {
675                 if (camera->dof_ob==ob) {
676                         camera->dof_ob = NULL;
677                 }
678                 camera= camera->id.next;
679         }
680 }
681
682 int exist_object(Object *obtest)
683 {
684         Object *ob;
685         
686         if(obtest==NULL) return 0;
687         
688         ob= G.main->object.first;
689         while(ob) {
690                 if(ob==obtest) return 1;
691                 ob= ob->id.next;
692         }
693         return 0;
694 }
695
696 void *add_camera(char *name)
697 {
698         Camera *cam;
699         
700         cam=  alloc_libblock(&G.main->camera, ID_CA, name);
701
702         cam->lens= 35.0f;
703         cam->clipsta= 0.1f;
704         cam->clipend= 100.0f;
705         cam->drawsize= 0.5f;
706         cam->ortho_scale= 6.0;
707         cam->flag |= CAM_SHOWPASSEPARTOUT;
708         cam->passepartalpha = 0.5f;
709         
710         return cam;
711 }
712
713 Camera *copy_camera(Camera *cam)
714 {
715         Camera *camn;
716         
717         camn= copy_libblock(cam);
718         camn->adt= BKE_copy_animdata(cam->adt);
719         
720         return camn;
721 }
722
723
724
725 void make_local_camera(Camera *cam)
726 {
727         Main *bmain= G.main;
728         Object *ob;
729         Camera *camn;
730         int local=0, lib=0;
731
732         /* - only lib users: do nothing
733                 * - only local users: set flag
734                 * - mixed: make copy
735                 */
736         
737         if(cam->id.lib==0) return;
738         if(cam->id.us==1) {
739                 cam->id.lib= 0;
740                 cam->id.flag= LIB_LOCAL;
741                 new_id(0, (ID *)cam, 0);
742                 return;
743         }
744         
745         ob= bmain->object.first;
746         while(ob) {
747                 if(ob->data==cam) {
748                         if(ob->id.lib) lib= 1;
749                         else local= 1;
750                 }
751                 ob= ob->id.next;
752         }
753         
754         if(local && lib==0) {
755                 cam->id.lib= 0;
756                 cam->id.flag= LIB_LOCAL;
757                 new_id(0, (ID *)cam, 0);
758         }
759         else if(local && lib) {
760                 camn= copy_camera(cam);
761                 camn->id.us= 0;
762                 
763                 ob= bmain->object.first;
764                 while(ob) {
765                         if(ob->data==cam) {
766                                 
767                                 if(ob->id.lib==0) {
768                                         ob->data= camn;
769                                         camn->id.us++;
770                                         cam->id.us--;
771                                 }
772                         }
773                         ob= ob->id.next;
774                 }
775         }
776 }
777
778 /* get the camera's dof value, takes the dof object into account */
779 float dof_camera(Object *ob)
780 {
781         Camera *cam = (Camera *)ob->data; 
782         if (ob->type != OB_CAMERA)
783                 return 0.0f;
784         if (cam->dof_ob) {      
785                 /* too simple, better to return the distance on the view axis only
786                  * return len_v3v3(ob->obmat[3], cam->dof_ob->obmat[3]); */
787                 float mat[4][4], imat[4][4], obmat[4][4];
788                 
789                 copy_m4_m4(obmat, ob->obmat);
790                 normalize_m4(obmat);
791                 invert_m4_m4(imat, obmat);
792                 mul_m4_m4m4(mat, cam->dof_ob->obmat, imat);
793                 return (float)fabs(mat[3][2]);
794         }
795         return cam->YF_dofdist;
796 }
797
798 void *add_lamp(char *name)
799 {
800         Lamp *la;
801         
802         la=  alloc_libblock(&G.main->lamp, ID_LA, name);
803         
804         la->r= la->g= la->b= la->k= 1.0f;
805         la->haint= la->energy= 1.0f;
806         la->dist= 25.0f;
807         la->spotsize= 45.0f;
808         la->spotblend= 0.15f;
809         la->att2= 1.0f;
810         la->mode= LA_SHAD_BUF;
811         la->bufsize= 512;
812         la->clipsta= 0.5f;
813         la->clipend= 40.0f;
814         la->shadspotsize= 45.0f;
815         la->samp= 3;
816         la->bias= 1.0f;
817         la->soft= 3.0f;
818         la->compressthresh= 0.05f;
819         la->ray_samp= la->ray_sampy= la->ray_sampz= 1; 
820         la->area_size=la->area_sizey=la->area_sizez= 1.0f; 
821         la->buffers= 1;
822         la->buftype= LA_SHADBUF_HALFWAY;
823         la->ray_samp_method = LA_SAMP_HALTON;
824         la->adapt_thresh = 0.001f;
825         la->preview=NULL;
826         la->falloff_type = LA_FALLOFF_INVSQUARE;
827         la->curfalloff = curvemapping_add(1, 0.0f, 1.0f, 1.0f, 0.0f);
828         la->sun_effect_type = 0;
829         la->horizon_brightness = 1.0;
830         la->spread = 1.0;
831         la->sun_brightness = 1.0;
832         la->sun_size = 1.0;
833         la->backscattered_light = 1.0f;
834         la->atm_turbidity = 2.0f;
835         la->atm_inscattering_factor = 1.0f;
836         la->atm_extinction_factor = 1.0f;
837         la->atm_distance_factor = 1.0f;
838         la->sun_intensity = 1.0f;
839         la->skyblendtype= MA_RAMP_ADD;
840         la->skyblendfac= 1.0f;
841         la->sky_colorspace= BLI_XYZ_CIE;
842         la->sky_exposure= 1.0f;
843         
844         curvemapping_initialize(la->curfalloff);
845         return la;
846 }
847
848 Lamp *copy_lamp(Lamp *la)
849 {
850         Lamp *lan;
851         int a;
852         
853         lan= copy_libblock(la);
854
855         for(a=0; a<MAX_MTEX; a++) {
856                 if(lan->mtex[a]) {
857                         lan->mtex[a]= MEM_mallocN(sizeof(MTex), "copylamptex");
858                         memcpy(lan->mtex[a], la->mtex[a], sizeof(MTex));
859                         id_us_plus((ID *)lan->mtex[a]->tex);
860                 }
861         }
862         
863         lan->curfalloff = curvemapping_copy(la->curfalloff);
864         
865 #if 0 // XXX old animation system
866         id_us_plus((ID *)lan->ipo);
867 #endif // XXX old animation system
868
869         if (la->preview) lan->preview = BKE_previewimg_copy(la->preview);
870         
871         return lan;
872 }
873
874 void make_local_lamp(Lamp *la)
875 {
876         Main *bmain= G.main;
877         Object *ob;
878         Lamp *lan;
879         int local=0, lib=0;
880
881         /* - only lib users: do nothing
882                 * - only local users: set flag
883                 * - mixed: make copy
884                 */
885         
886         if(la->id.lib==0) return;
887         if(la->id.us==1) {
888                 la->id.lib= 0;
889                 la->id.flag= LIB_LOCAL;
890                 new_id(0, (ID *)la, 0);
891                 return;
892         }
893         
894         ob= bmain->object.first;
895         while(ob) {
896                 if(ob->data==la) {
897                         if(ob->id.lib) lib= 1;
898                         else local= 1;
899                 }
900                 ob= ob->id.next;
901         }
902         
903         if(local && lib==0) {
904                 la->id.lib= 0;
905                 la->id.flag= LIB_LOCAL;
906                 new_id(0, (ID *)la, 0);
907         }
908         else if(local && lib) {
909                 lan= copy_lamp(la);
910                 lan->id.us= 0;
911                 
912                 ob= bmain->object.first;
913                 while(ob) {
914                         if(ob->data==la) {
915                                 
916                                 if(ob->id.lib==0) {
917                                         ob->data= lan;
918                                         lan->id.us++;
919                                         la->id.us--;
920                                 }
921                         }
922                         ob= ob->id.next;
923                 }
924         }
925 }
926
927 void free_camera(Camera *ca)
928 {
929         BKE_free_animdata((ID *)ca);
930 }
931
932 void free_lamp(Lamp *la)
933 {
934         MTex *mtex;
935         int a;
936
937         for(a=0; a<MAX_MTEX; a++) {
938                 mtex= la->mtex[a];
939                 if(mtex && mtex->tex) mtex->tex->id.us--;
940                 if(mtex) MEM_freeN(mtex);
941         }
942         
943         BKE_free_animdata((ID *)la);
944
945         curvemapping_free(la->curfalloff);
946         
947         BKE_previewimg_free(&la->preview);
948         BKE_icon_delete(&la->id);
949         la->id.icon_id = 0;
950 }
951
952 /* *************************************************** */
953
954 static void *add_obdata_from_type(int type)
955 {
956         switch (type) {
957         case OB_MESH: return add_mesh("Mesh");
958         case OB_CURVE: return add_curve("Curve", OB_CURVE);
959         case OB_SURF: return add_curve("Surf", OB_SURF);
960         case OB_FONT: return add_curve("Text", OB_FONT);
961         case OB_MBALL: return add_mball("Meta");
962         case OB_CAMERA: return add_camera("Camera");
963         case OB_LAMP: return add_lamp("Lamp");
964         case OB_LATTICE: return add_lattice("Lattice");
965         case OB_ARMATURE: return add_armature("Armature");
966         case OB_EMPTY: return NULL;
967         default:
968                 printf("add_obdata_from_type: Internal error, bad type: %d\n", type);
969                 return NULL;
970         }
971 }
972
973 static char *get_obdata_defname(int type)
974 {
975         switch (type) {
976         case OB_MESH: return "Mesh";
977         case OB_CURVE: return "Curve";
978         case OB_SURF: return "Surf";
979         case OB_FONT: return "Text";
980         case OB_MBALL: return "Mball";
981         case OB_CAMERA: return "Camera";
982         case OB_LAMP: return "Lamp";
983         case OB_LATTICE: return "Lattice";
984         case OB_ARMATURE: return "Armature";
985         case OB_EMPTY: return "Empty";
986         default:
987                 printf("get_obdata_defname: Internal error, bad type: %d\n", type);
988                 return "Empty";
989         }
990 }
991
992 /* more general add: creates minimum required data, but without vertices etc. */
993 Object *add_only_object(int type, char *name)
994 {
995         Object *ob;
996
997         ob= alloc_libblock(&G.main->object, ID_OB, name);
998
999         /* default object vars */
1000         ob->type= type;
1001         
1002         ob->col[0]= ob->col[1]= ob->col[2]= 1.0;
1003         ob->col[3]= 1.0;
1004         
1005         ob->size[0]= ob->size[1]= ob->size[2]= 1.0;
1006         
1007         /* objects should default to having Euler XYZ rotations, 
1008          * but rotations default to quaternions 
1009          */
1010         ob->rotmode= ROT_MODE_EUL;
1011         /* axis-angle must not have a 0,0,0 axis, so set y-axis as default... */
1012         ob->rotAxis[1]= ob->drotAxis[1]= 1.0f;
1013         /* quaternions should be 1,0,0,0 by default.... */
1014         ob->quat[0]= ob->dquat[0]= 1.0f;
1015         /* rotation locks should be 4D for 4 component rotations by default... */
1016         ob->protectflag = OB_LOCK_ROT4D;
1017         
1018         unit_m4(ob->constinv);
1019         unit_m4(ob->parentinv);
1020         unit_m4(ob->obmat);
1021         ob->dt= OB_TEXTURE;
1022         ob->empty_drawtype= OB_ARROWS;
1023         ob->empty_drawsize= 1.0;
1024
1025         if(type==OB_CAMERA || type==OB_LAMP) {
1026                 ob->trackflag= OB_NEGZ;
1027                 ob->upflag= OB_POSY;
1028         }
1029         else {
1030                 ob->trackflag= OB_POSY;
1031                 ob->upflag= OB_POSZ;
1032         }
1033         
1034         ob->dupon= 1; ob->dupoff= 0;
1035         ob->dupsta= 1; ob->dupend= 100;
1036         ob->dupfacesca = 1.0;
1037
1038         /* Game engine defaults*/
1039         ob->mass= ob->inertia= 1.0f;
1040         ob->formfactor= 0.4f;
1041         ob->damping= 0.04f;
1042         ob->rdamping= 0.1f;
1043         ob->anisotropicFriction[0] = 1.0f;
1044         ob->anisotropicFriction[1] = 1.0f;
1045         ob->anisotropicFriction[2] = 1.0f;
1046         ob->gameflag= OB_PROP|OB_COLLISION;
1047         ob->margin = 0.0;
1048         ob->init_state=1;
1049         ob->state=1;
1050         /* ob->pad3 == Contact Processing Threshold */
1051         ob->m_contactProcessingThreshold = 1.;
1052         
1053         /* NT fluid sim defaults */
1054         ob->fluidsimFlag = 0;
1055         ob->fluidsimSettings = NULL;
1056
1057         ob->pc_ids.first = ob->pc_ids.last = NULL;
1058         
1059         /* Animation Visualisation defaults */
1060         animviz_settings_init(&ob->avs);
1061
1062         return ob;
1063 }
1064
1065 /* general add: to scene, with layer from area and default name */
1066 /* creates minimum required data, but without vertices etc. */
1067 Object *add_object(struct Scene *scene, int type)
1068 {
1069         Object *ob;
1070         Base *base;
1071         char name[32];
1072
1073         strcpy(name, get_obdata_defname(type));
1074         ob = add_only_object(type, name);
1075
1076         ob->data= add_obdata_from_type(type);
1077
1078         ob->lay= scene->lay;
1079         
1080         base= scene_add_base(scene, ob);
1081         scene_select_base(scene, base);
1082         ob->recalc |= OB_RECALC_ALL;
1083
1084         return ob;
1085 }
1086
1087 SoftBody *copy_softbody(SoftBody *sb)
1088 {
1089         SoftBody *sbn;
1090         
1091         if (sb==NULL) return(NULL);
1092         
1093         sbn= MEM_dupallocN(sb);
1094         sbn->totspring= sbn->totpoint= 0;
1095         sbn->bpoint= NULL;
1096         sbn->bspring= NULL;
1097         
1098         sbn->keys= NULL;
1099         sbn->totkey= sbn->totpointkey= 0;
1100         
1101         sbn->scratch= NULL;
1102
1103         sbn->pointcache= BKE_ptcache_copy_list(&sbn->ptcaches, &sb->ptcaches);
1104
1105         if(sb->effector_weights)
1106                 sbn->effector_weights = MEM_dupallocN(sb->effector_weights);
1107
1108         return sbn;
1109 }
1110
1111 BulletSoftBody *copy_bulletsoftbody(BulletSoftBody *bsb)
1112 {
1113         BulletSoftBody *bsbn;
1114
1115         if (bsb == NULL)
1116                 return NULL;
1117         bsbn = MEM_dupallocN(bsb);
1118         /* no pointer in this structure yet */
1119         return bsbn;
1120 }
1121
1122 ParticleSystem *copy_particlesystem(ParticleSystem *psys)
1123 {
1124         ParticleSystem *psysn;
1125         ParticleData *pa;
1126         int p;
1127
1128         psysn= MEM_dupallocN(psys);
1129         psysn->particles= MEM_dupallocN(psys->particles);
1130         psysn->child= MEM_dupallocN(psys->child);
1131
1132         if(psys->part->type == PART_HAIR) {
1133                 for(p=0, pa=psysn->particles; p<psysn->totpart; p++, pa++)
1134                         pa->hair = MEM_dupallocN(pa->hair);
1135         }
1136
1137         if(psysn->particles && (psysn->particles->keys || psysn->particles->boid)) {
1138                 ParticleKey *key = psysn->particles->keys;
1139                 BoidParticle *boid = psysn->particles->boid;
1140
1141                 if(key)
1142                         key = MEM_dupallocN(key);
1143                 
1144                 if(boid)
1145                         boid = MEM_dupallocN(boid);
1146                 
1147                 for(p=0, pa=psysn->particles; p<psysn->totpart; p++, pa++) {
1148                         if(boid)
1149                                 pa->boid = boid++;
1150                         if(key) {
1151                                 pa->keys = key;
1152                                 key += pa->totkey;
1153                         }
1154                 }
1155         }
1156
1157         if(psys->clmd) {
1158                 psysn->clmd = (ClothModifierData *)modifier_new(eModifierType_Cloth);
1159                 modifier_copyData((ModifierData*)psys->clmd, (ModifierData*)psysn->clmd);
1160                 psys->hair_in_dm = psys->hair_out_dm = NULL;
1161         }
1162
1163         BLI_duplicatelist(&psysn->targets, &psys->targets);
1164
1165         psysn->pathcache= NULL;
1166         psysn->childcache= NULL;
1167         psysn->edit= NULL;
1168         psysn->frand= NULL;
1169         psysn->pdd= NULL;
1170         psysn->effectors= NULL;
1171         
1172         psysn->pathcachebufs.first = psysn->pathcachebufs.last = NULL;
1173         psysn->childcachebufs.first = psysn->childcachebufs.last = NULL;
1174         psysn->renderdata = NULL;
1175         
1176         psysn->pointcache= BKE_ptcache_copy_list(&psysn->ptcaches, &psys->ptcaches);
1177
1178         /* XXX - from reading existing code this seems correct but intended usage of
1179          * pointcache should /w cloth should be added in 'ParticleSystem' - campbell */
1180         if(psysn->clmd) {
1181                 psysn->clmd->point_cache= psysn->pointcache;
1182         }
1183
1184         id_us_plus((ID *)psysn->part);
1185
1186         return psysn;
1187 }
1188
1189 void copy_object_particlesystems(Object *obn, Object *ob)
1190 {
1191         ParticleSystemModifierData *psmd;
1192         ParticleSystem *psys, *npsys;
1193         ModifierData *md;
1194
1195         obn->particlesystem.first= obn->particlesystem.last= NULL;
1196         for(psys=ob->particlesystem.first; psys; psys=psys->next) {
1197                 npsys= copy_particlesystem(psys);
1198
1199                 BLI_addtail(&obn->particlesystem, npsys);
1200
1201                 /* need to update particle modifiers too */
1202                 for(md=obn->modifiers.first; md; md=md->next) {
1203                         if(md->type==eModifierType_ParticleSystem) {
1204                                 psmd= (ParticleSystemModifierData*)md;
1205                                 if(psmd->psys==psys)
1206                                         psmd->psys= npsys;
1207                         }
1208                 }
1209         }
1210 }
1211
1212 void copy_object_softbody(Object *obn, Object *ob)
1213 {
1214         if(ob->soft)
1215                 obn->soft= copy_softbody(ob->soft);
1216 }
1217
1218 static void copy_object_pose(Object *obn, Object *ob)
1219 {
1220         bPoseChannel *chan;
1221         
1222         /* note: need to clear obn->pose pointer first, so that copy_pose works (otherwise there's a crash) */
1223         obn->pose= NULL;
1224         copy_pose(&obn->pose, ob->pose, 1);     /* 1 = copy constraints */
1225
1226         for (chan = obn->pose->chanbase.first; chan; chan=chan->next){
1227                 bConstraint *con;
1228                 
1229                 chan->flag &= ~(POSE_LOC|POSE_ROT|POSE_SIZE);
1230                 
1231                 for (con= chan->constraints.first; con; con= con->next) {
1232                         bConstraintTypeInfo *cti= constraint_get_typeinfo(con);
1233                         ListBase targets = {NULL, NULL};
1234                         bConstraintTarget *ct;
1235                         
1236 #if 0 // XXX old animation system
1237                         /* note that we can't change lib linked ipo blocks. for making
1238                          * proxies this still works correct however because the object
1239                          * is changed to object->proxy_from when evaluating the driver. */
1240                         if(con->ipo && !con->ipo->id.lib) {
1241                                 IpoCurve *icu;
1242                                 
1243                                 con->ipo= copy_ipo(con->ipo);
1244                                 
1245                                 for(icu= con->ipo->curve.first; icu; icu= icu->next) {
1246                                         if(icu->driver && icu->driver->ob==ob)
1247                                                 icu->driver->ob= obn;
1248                                 }
1249                         }
1250 #endif // XXX old animation system
1251                         
1252                         if (cti && cti->get_constraint_targets) {
1253                                 cti->get_constraint_targets(con, &targets);
1254                                 
1255                                 for (ct= targets.first; ct; ct= ct->next) {
1256                                         if (ct->tar == ob)
1257                                                 ct->tar = obn;
1258                                 }
1259                                 
1260                                 if (cti->flush_constraint_targets)
1261                                         cti->flush_constraint_targets(con, &targets, 0);
1262                         }
1263                 }
1264         }
1265 }
1266
1267 static void copy_object_transform(Object *ob_tar, Object *ob_src)
1268 {
1269         copy_v3_v3(ob_tar->loc, ob_src->loc);
1270         copy_v3_v3(ob_tar->rot, ob_src->rot);
1271         copy_v3_v3(ob_tar->quat, ob_src->quat);
1272         copy_v3_v3(ob_tar->rotAxis, ob_src->rotAxis);
1273         ob_tar->rotAngle= ob_src->rotAngle;
1274         ob_tar->rotmode= ob_src->rotmode;
1275         copy_v3_v3(ob_tar->size, ob_src->size);
1276 }
1277
1278 Object *copy_object(Object *ob)
1279 {
1280         Object *obn;
1281         ModifierData *md;
1282         int a;
1283
1284         obn= copy_libblock(ob);
1285         
1286         if(ob->totcol) {
1287                 obn->mat= MEM_dupallocN(ob->mat);
1288                 obn->matbits= MEM_dupallocN(ob->matbits);
1289                 obn->totcol= ob->totcol;
1290         }
1291         
1292         if(ob->bb) obn->bb= MEM_dupallocN(ob->bb);
1293         obn->path= NULL;
1294         obn->flag &= ~OB_FROMGROUP;
1295         
1296         obn->modifiers.first = obn->modifiers.last= NULL;
1297         
1298         for (md=ob->modifiers.first; md; md=md->next) {
1299                 ModifierData *nmd = modifier_new(md->type);
1300                 BLI_strncpy(nmd->name, md->name, sizeof(nmd->name));
1301                 modifier_copyData(md, nmd);
1302                 BLI_addtail(&obn->modifiers, nmd);
1303         }
1304
1305         obn->prop.first = obn->prop.last = NULL;
1306         copy_properties(&obn->prop, &ob->prop);
1307         
1308         copy_sensors(&obn->sensors, &ob->sensors);
1309         copy_controllers(&obn->controllers, &ob->controllers);
1310         copy_actuators(&obn->actuators, &ob->actuators);
1311         
1312         if(ob->pose) {
1313                 copy_object_pose(obn, ob);
1314                 /* backwards compat... non-armatures can get poses in older files? */
1315                 if(ob->type==OB_ARMATURE)
1316                         armature_rebuild_pose(obn, obn->data);
1317         }
1318         defgroup_copy_list(&obn->defbase, &ob->defbase);
1319         copy_constraints(&obn->constraints, &ob->constraints, TRUE);
1320
1321         obn->mode = 0;
1322         obn->sculpt = NULL;
1323
1324         /* increase user numbers */
1325         id_us_plus((ID *)obn->data);
1326         id_lib_extern((ID *)obn->dup_group);
1327         
1328
1329         for(a=0; a<obn->totcol; a++) id_us_plus((ID *)obn->mat[a]);
1330         
1331         obn->disp.first= obn->disp.last= NULL;
1332         
1333         if(ob->pd){
1334                 obn->pd= MEM_dupallocN(ob->pd);
1335                 if(obn->pd->tex)
1336                         id_us_plus(&(obn->pd->tex->id));
1337                 if(obn->pd->rng)
1338                         obn->pd->rng = MEM_dupallocN(ob->pd->rng);
1339         }
1340         obn->soft= copy_softbody(ob->soft);
1341         obn->bsoft = copy_bulletsoftbody(ob->bsoft);
1342
1343         copy_object_particlesystems(obn, ob);
1344         
1345         obn->derivedDeform = NULL;
1346         obn->derivedFinal = NULL;
1347
1348         obn->gpulamp.first = obn->gpulamp.last = NULL;
1349         obn->pc_ids.first = obn->pc_ids.last = NULL;
1350
1351         obn->mpath= NULL;
1352         
1353         return obn;
1354 }
1355
1356 void expand_local_object(Object *ob)
1357 {
1358         //bActionStrip *strip;
1359         ParticleSystem *psys;
1360         int a;
1361
1362 #if 0 // XXX old animation system
1363         id_lib_extern((ID *)ob->action);
1364         id_lib_extern((ID *)ob->ipo);
1365 #endif // XXX old animation system
1366         id_lib_extern((ID *)ob->data);
1367         id_lib_extern((ID *)ob->dup_group);
1368         
1369         for(a=0; a<ob->totcol; a++) {
1370                 id_lib_extern((ID *)ob->mat[a]);
1371         }
1372 #if 0 // XXX old animation system
1373         for (strip=ob->nlastrips.first; strip; strip=strip->next) {
1374                 id_lib_extern((ID *)strip->act);
1375         }
1376 #endif // XXX old animation system
1377         for(psys=ob->particlesystem.first; psys; psys=psys->next)
1378                 id_lib_extern((ID *)psys->part);
1379 }
1380
1381 void make_local_object(Object *ob)
1382 {
1383         Main *bmain= G.main;
1384         Object *obn;
1385         Scene *sce;
1386         Base *base;
1387         int local=0, lib=0;
1388
1389         /* - only lib users: do nothing
1390                 * - only local users: set flag
1391                 * - mixed: make copy
1392                 */
1393         
1394         if(ob->id.lib==NULL) return;
1395         
1396         ob->proxy= ob->proxy_from= NULL;
1397         
1398         if(ob->id.us==1) {
1399                 ob->id.lib= NULL;
1400                 ob->id.flag= LIB_LOCAL;
1401                 new_id(0, (ID *)ob, 0);
1402
1403         }
1404         else {
1405                 sce= bmain->scene.first;
1406                 while(sce) {
1407                         base= sce->base.first;
1408                         while(base) {
1409                                 if(base->object==ob) {
1410                                         if(sce->id.lib) lib++;
1411                                         else local++;
1412                                         break;
1413                                 }
1414                                 base= base->next;
1415                         }
1416                         sce= sce->id.next;
1417                 }
1418                 
1419                 if(local && lib==0) {
1420                         ob->id.lib= 0;
1421                         ob->id.flag= LIB_LOCAL;
1422                         new_id(0, (ID *)ob, 0);
1423                 }
1424                 else if(local && lib) {
1425                         obn= copy_object(ob);
1426                         obn->id.us= 0;
1427                         
1428                         sce= bmain->scene.first;
1429                         while(sce) {
1430                                 if(sce->id.lib==0) {
1431                                         base= sce->base.first;
1432                                         while(base) {
1433                                                 if(base->object==ob) {
1434                                                         base->object= obn;
1435                                                         obn->id.us++;
1436                                                         ob->id.us--;
1437                                                 }
1438                                                 base= base->next;
1439                                         }
1440                                 }
1441                                 sce= sce->id.next;
1442                         }
1443                 }
1444         }
1445         
1446         expand_local_object(ob);
1447 }
1448
1449 /*
1450  * Returns true if the Object is a from an external blend file (libdata)
1451  */
1452 int object_is_libdata(Object *ob)
1453 {
1454         if (!ob) return 0;
1455         if (ob->proxy) return 0;
1456         if (ob->id.lib) return 1;
1457         return 0;
1458 }
1459
1460 /* Returns true if the Object data is a from an external blend file (libdata) */
1461 int object_data_is_libdata(Object *ob)
1462 {
1463         if(!ob) return 0;
1464         if(ob->proxy && (ob->data==NULL || ((ID *)ob->data)->lib==NULL)) return 0;
1465         if(ob->id.lib) return 1;
1466         if(ob->data==NULL) return 0;
1467         if(((ID *)ob->data)->lib) return 1;
1468
1469         return 0;
1470 }
1471
1472 /* *************** PROXY **************** */
1473
1474 /* when you make proxy, ensure the exposed layers are extern */
1475 static void armature_set_id_extern(Object *ob)
1476 {
1477         bArmature *arm= ob->data;
1478         bPoseChannel *pchan;
1479         unsigned int lay= arm->layer_protected;
1480         
1481         for (pchan = ob->pose->chanbase.first; pchan; pchan=pchan->next) {
1482                 if(!(pchan->bone->layer & lay))
1483                         id_lib_extern((ID *)pchan->custom);
1484         }
1485                         
1486 }
1487
1488 void object_copy_proxy_drivers(Object *ob, Object *target)
1489 {
1490         if ((target->adt) && (target->adt->drivers.first)) {
1491                 FCurve *fcu;
1492                 
1493                 /* add new animdata block */
1494                 if(!ob->adt)
1495                         ob->adt= BKE_id_add_animdata(&ob->id);
1496                 
1497                 /* make a copy of all the drivers (for now), then correct any links that need fixing */
1498                 free_fcurves(&ob->adt->drivers);
1499                 copy_fcurves(&ob->adt->drivers, &target->adt->drivers);
1500                 
1501                 for (fcu= ob->adt->drivers.first; fcu; fcu= fcu->next) {
1502                         ChannelDriver *driver= fcu->driver;
1503                         DriverVar *dvar;
1504                         
1505                         for (dvar= driver->variables.first; dvar; dvar= dvar->next) {
1506                                 /* all drivers */
1507                                 DRIVER_TARGETS_LOOPER(dvar) 
1508                                 {
1509                                         if(dtar->id) {
1510                                                 if ((Object *)dtar->id == target)
1511                                                         dtar->id= (ID *)ob;
1512                                                 else {
1513                                                         /* only on local objects because this causes indirect links a -> b -> c,blend to point directly to a.blend
1514                                                          * when a.blend has a proxy thats linked into c.blend  */
1515                                                         if(ob->id.lib==NULL)
1516                                                                 id_lib_extern((ID *)dtar->id);
1517                                                 }
1518                                         }
1519                                 }
1520                                 DRIVER_TARGETS_LOOPER_END
1521                         }
1522                 }
1523         }
1524 }
1525
1526 /* proxy rule: lib_object->proxy_from == the one we borrow from, set temporally while object_update */
1527 /*             local_object->proxy == pointer to library object, saved in files and read */
1528 /*             local_object->proxy_group == pointer to group dupli-object, saved in files and read */
1529
1530 void object_make_proxy(Object *ob, Object *target, Object *gob)
1531 {
1532         /* paranoia checks */
1533         if(ob->id.lib || target->id.lib==NULL) {
1534                 printf("cannot make proxy\n");
1535                 return;
1536         }
1537         
1538         ob->proxy= target;
1539         ob->proxy_group= gob;
1540         id_lib_extern(&target->id);
1541         
1542         ob->recalc= target->recalc= OB_RECALC_ALL;
1543         
1544         /* copy transform
1545          * - gob means this proxy comes from a group, just apply the matrix
1546          *   so the object wont move from its dupli-transform.
1547          *
1548          * - no gob means this is being made from a linked object,
1549          *   this is closer to making a copy of the object - in-place. */
1550         if(gob) {
1551                 ob->rotmode= target->rotmode;
1552                 mul_m4_m4m4(ob->obmat, target->obmat, gob->obmat);
1553                 object_apply_mat4(ob, ob->obmat, FALSE);
1554         }
1555         else {
1556                 copy_object_transform(ob, target);
1557                 ob->parent= target->parent;     /* libdata */
1558                 copy_m4_m4(ob->parentinv, target->parentinv);
1559         }
1560         
1561         /* copy animdata stuff - drivers only for now... */
1562         object_copy_proxy_drivers(ob, target);
1563
1564         /* skip constraints? */
1565         // FIXME: this is considered by many as a bug
1566         
1567         /* set object type and link to data */
1568         ob->type= target->type;
1569         ob->data= target->data;
1570         id_us_plus((ID *)ob->data);             /* ensures lib data becomes LIB_EXTERN */
1571         
1572         /* copy material and index information */
1573         ob->actcol= ob->totcol= 0;
1574         if(ob->mat) MEM_freeN(ob->mat);
1575         if(ob->matbits) MEM_freeN(ob->matbits);
1576         ob->mat = NULL;
1577         ob->matbits= NULL;
1578         if ((target->totcol) && (target->mat) && ELEM5(ob->type, OB_MESH, OB_CURVE, OB_SURF, OB_FONT, OB_MBALL)) { //XXX OB_SUPPORT_MATERIAL
1579                 int i;
1580                 ob->colbits = target->colbits;
1581                 
1582                 ob->actcol= target->actcol;
1583                 ob->totcol= target->totcol;
1584                 
1585                 ob->mat = MEM_dupallocN(target->mat);
1586                 ob->matbits = MEM_dupallocN(target->matbits);
1587                 for(i=0; i<target->totcol; i++) {
1588                         /* dont need to run test_object_materials since we know this object is new and not used elsewhere */
1589                         id_us_plus((ID *)ob->mat[i]); 
1590                 }
1591         }
1592         
1593         /* type conversions */
1594         if(target->type == OB_ARMATURE) {
1595                 copy_object_pose(ob, target);   /* data copy, object pointers in constraints */
1596                 rest_pose(ob->pose);                    /* clear all transforms in channels */
1597                 armature_rebuild_pose(ob, ob->data);    /* set all internal links */
1598                 
1599                 armature_set_id_extern(ob);
1600         }
1601         
1602         /* copy drawtype info */
1603         ob->dt= target->dt;
1604 }
1605
1606
1607 /* *************** CALC ****************** */
1608
1609 /* there is also a timing calculation in drawobject() */
1610
1611 int no_speed_curve= 0;
1612
1613 void disable_speed_curve(int val)
1614 {
1615         no_speed_curve= val;
1616 }
1617
1618 // XXX THIS CRUFT NEEDS SERIOUS RECODING ASAP!
1619 /* ob can be NULL */
1620 float bsystem_time(struct Scene *scene, Object *UNUSED(ob), float cfra, float ofs)
1621 {
1622         /* returns float ( see BKE_curframe in scene.c) */
1623         cfra += scene->r.subframe;
1624         
1625         /* global time */
1626         if (scene)
1627                 cfra*= scene->r.framelen;       
1628         
1629 #if 0 // XXX old animation system
1630         if (ob) {
1631                 /* ofset frames */
1632                 if ((ob->ipoflag & OB_OFFS_PARENT) && (ob->partype & PARSLOW)==0) 
1633                         cfra-= give_timeoffset(ob);
1634         }
1635 #endif // XXX old animation system
1636         
1637         cfra-= ofs;
1638
1639         return cfra;
1640 }
1641
1642 void object_scale_to_mat3(Object *ob, float mat[][3])
1643 {
1644         float vec[3];
1645         add_v3_v3v3(vec, ob->size, ob->dsize);
1646         size_to_mat3( mat,vec);
1647 }
1648
1649
1650 void object_rot_to_mat3(Object *ob, float mat[][3])
1651 {
1652         float rmat[3][3], dmat[3][3];
1653         
1654         /* initialise the delta-rotation matrix, which will get (pre)multiplied 
1655          * with the rotation matrix to yield the appropriate rotation
1656          */
1657         unit_m3(dmat);
1658         
1659         /* rotations may either be quats, eulers (with various rotation orders), or axis-angle */
1660         if (ob->rotmode > 0) {
1661                 /* euler rotations (will cause gimble lock, but this can be alleviated a bit with rotation orders) */
1662                 eulO_to_mat3( rmat,ob->rot, ob->rotmode);
1663                 eulO_to_mat3( dmat,ob->drot, ob->rotmode);
1664         }
1665         else if (ob->rotmode == ROT_MODE_AXISANGLE) {
1666                 /* axis-angle -  not really that great for 3D-changing orientations */
1667                 axis_angle_to_mat3( rmat,ob->rotAxis, ob->rotAngle);
1668                 axis_angle_to_mat3( dmat,ob->drotAxis, ob->drotAngle);
1669         }
1670         else {
1671                 /* quats are normalised before use to eliminate scaling issues */
1672                 normalize_qt(ob->quat);
1673                 quat_to_mat3( rmat,ob->quat);
1674                 quat_to_mat3( dmat,ob->dquat);
1675         }
1676         
1677         /* combine these rotations */
1678         mul_m3_m3m3(mat, dmat, rmat);
1679 }
1680
1681 void object_mat3_to_rot(Object *ob, float mat[][3], short use_compat)
1682 {
1683         if (ob->rotmode == ROT_MODE_QUAT)
1684                 mat3_to_quat(ob->quat, mat);
1685         else if (ob->rotmode == ROT_MODE_AXISANGLE)
1686                 mat3_to_axis_angle(ob->rotAxis, &ob->rotAngle, mat);
1687         else {
1688                 if(use_compat) {
1689                         float eul[3];
1690                         VECCOPY(eul, ob->rot);
1691                         mat3_to_compatible_eulO(ob->rot, eul, ob->rotmode, mat);
1692                 }
1693                 else
1694                         mat3_to_eulO(ob->rot, ob->rotmode, mat);
1695         }
1696 }
1697
1698 /* see pchan_apply_mat4() for the equivalent 'pchan' function */
1699 void object_apply_mat4(Object *ob, float mat[][4], short use_compat)
1700 {
1701         float mat3[3][3];    /* obmat -> 3x3 */
1702         float mat3_n[3][3];  /* obmat -> normalized, 3x3 */
1703         float imat3_n[3][3]; /* obmat -> normalized & inverted, 3x3 */
1704
1705         /* location */
1706         copy_v3_v3(ob->loc, mat[3]);
1707
1708         /* rotation & scale are linked, we need to create the mat's
1709          * for these together since they are related. */
1710         copy_m3_m4(mat3, mat);
1711         /* so scale doesnt interfear with rotation [#24291] */
1712         /* note: this is a workaround for negative matrix not working for rotation conversion, FIXME */
1713         normalize_m3_m3(mat3_n, (const float(*)[3])mat3);
1714         if(is_negative_m3(mat3_n)) {
1715                 negate_v3(mat3_n[0]);
1716                 negate_v3(mat3_n[1]);
1717                 negate_v3(mat3_n[2]);
1718         }
1719
1720         /* rotation */
1721         object_mat3_to_rot(ob, mat3_n, use_compat);
1722
1723         /* scale */
1724         /* note: mat4_to_size(ob->size, mat) fails for negative scale */
1725         invert_m3_m3(imat3_n, mat3_n);
1726         mul_m3_m3m3(mat3, imat3_n, mat3);
1727
1728         ob->size[0]= mat3[0][0];
1729         ob->size[1]= mat3[1][1];
1730         ob->size[2]= mat3[2][2];
1731 }
1732
1733 void object_to_mat3(Object *ob, float mat[][3]) /* no parent */
1734 {
1735         float smat[3][3];
1736         float rmat[3][3];
1737         /*float q1[4];*/
1738         
1739         /* size */
1740         object_scale_to_mat3(ob, smat);
1741
1742         /* rot */
1743         object_rot_to_mat3(ob, rmat);
1744         mul_m3_m3m3(mat, rmat, smat);
1745 }
1746
1747 void object_to_mat4(Object *ob, float mat[][4])
1748 {
1749         float tmat[3][3];
1750         
1751         object_to_mat3(ob, tmat);
1752         
1753         copy_m4_m3(mat, tmat);
1754
1755         add_v3_v3v3(mat[3], ob->loc, ob->dloc);
1756 }
1757
1758 int enable_cu_speed= 1;
1759
1760 static void ob_parcurve(Scene *scene, Object *ob, Object *par, float mat[][4])
1761 {
1762         Curve *cu;
1763         float vec[4], dir[3], quat[4], radius, ctime;
1764         float timeoffs = 0.0, sf_orig = 0.0;
1765         
1766         unit_m4(mat);
1767         
1768         cu= par->data;
1769         if(cu->path==NULL || cu->path->data==NULL) /* only happens on reload file, but violates depsgraph still... fix! */
1770                 makeDispListCurveTypes(scene, par, 0);
1771         if(cu->path==NULL) return;
1772         
1773         /* exception, timeoffset is regarded as distance offset */
1774         if(cu->flag & CU_OFFS_PATHDIST) {
1775                 timeoffs = give_timeoffset(ob);
1776                 SWAP(float, sf_orig, ob->sf);
1777         }
1778         
1779         /* catch exceptions: feature for nla stride editing */
1780         if(ob->ipoflag & OB_DISABLE_PATH) {
1781                 ctime= 0.0f;
1782         }
1783         /* catch exceptions: curve paths used as a duplicator */
1784         else if(enable_cu_speed) {
1785                 /* ctime is now a proper var setting of Curve which gets set by Animato like any other var that's animated,
1786                  * but this will only work if it actually is animated... 
1787                  *
1788                  * we divide the curvetime calculated in the previous step by the length of the path, to get a time
1789                  * factor, which then gets clamped to lie within 0.0 - 1.0 range
1790                  */
1791                 ctime= cu->ctime / cu->pathlen;
1792                 CLAMP(ctime, 0.0, 1.0);
1793         }
1794         else {
1795                 ctime= scene->r.cfra - give_timeoffset(ob);
1796                 ctime /= cu->pathlen;
1797                 
1798                 CLAMP(ctime, 0.0, 1.0);
1799         }
1800         
1801         /* time calculus is correct, now apply distance offset */
1802         if(cu->flag & CU_OFFS_PATHDIST) {
1803                 ctime += timeoffs/cu->path->totdist;
1804
1805                 /* restore */
1806                 SWAP(float, sf_orig, ob->sf);
1807         }
1808         
1809         
1810         /* vec: 4 items! */
1811         if( where_on_path(par, ctime, vec, dir, cu->flag & CU_FOLLOW ? quat:NULL, &radius, NULL) ) {
1812
1813                 if(cu->flag & CU_FOLLOW) {
1814 #if 0
1815                         float x1, q[4];
1816                         vec_to_quat( quat,dir, ob->trackflag, ob->upflag);
1817                         
1818                         /* the tilt */
1819                         normalize_v3(dir);
1820                         q[0]= (float)cos(0.5*vec[3]);
1821                         x1= (float)sin(0.5*vec[3]);
1822                         q[1]= -x1*dir[0];
1823                         q[2]= -x1*dir[1];
1824                         q[3]= -x1*dir[2];
1825                         mul_qt_qtqt(quat, q, quat);
1826 #else
1827                         quat_apply_track(quat, ob->trackflag, ob->upflag);
1828 #endif
1829
1830                         quat_to_mat4(mat,quat);                 
1831                 }
1832                 
1833                 if(cu->flag & CU_PATH_RADIUS) {
1834                         float tmat[4][4], rmat[4][4];
1835                         scale_m4_fl(tmat, radius);
1836                         mul_m4_m4m4(rmat, mat, tmat);
1837                         copy_m4_m4(mat, rmat);
1838                 }
1839
1840                 copy_v3_v3(mat[3], vec);
1841                 
1842         }
1843 }
1844
1845 static void ob_parbone(Object *ob, Object *par, float mat[][4])
1846 {       
1847         bPoseChannel *pchan;
1848         float vec[3];
1849         
1850         if (par->type!=OB_ARMATURE) {
1851                 unit_m4(mat);
1852                 return;
1853         }
1854         
1855         /* Make sure the bone is still valid */
1856         pchan= get_pose_channel(par->pose, ob->parsubstr);
1857         if (!pchan){
1858                 printf ("Object %s with Bone parent: bone %s doesn't exist\n", ob->id.name+2, ob->parsubstr);
1859                 unit_m4(mat);
1860                 return;
1861         }
1862
1863         /* get bone transform */
1864         copy_m4_m4(mat, pchan->pose_mat);
1865
1866         /* but for backwards compatibility, the child has to move to the tail */
1867         copy_v3_v3(vec, mat[1]);
1868         mul_v3_fl(vec, pchan->bone->length);
1869         add_v3_v3(mat[3], vec);
1870 }
1871
1872 static void give_parvert(Object *par, int nr, float *vec)
1873 {
1874         EditMesh *em;
1875         int a, count;
1876         
1877         vec[0]=vec[1]=vec[2]= 0.0f;
1878         
1879         if(par->type==OB_MESH) {
1880                 Mesh *me= par->data;
1881                 DerivedMesh *dm;
1882
1883                 em = BKE_mesh_get_editmesh(me);
1884                 dm = (em)? em->derivedFinal: par->derivedFinal;
1885                         
1886                 if(dm) {
1887                         MVert *mvert= dm->getVertArray(dm);
1888                         int *index = (int *)dm->getVertDataArray(dm, CD_ORIGINDEX);
1889                         int i, count = 0, vindex, numVerts = dm->getNumVerts(dm);
1890
1891                         /* get the average of all verts with (original index == nr) */
1892                         for(i = 0; i < numVerts; i++) {
1893                                 vindex= (index)? index[i]: i;
1894
1895                                 if(vindex == nr) {
1896                                         add_v3_v3(vec, mvert[i].co);
1897                                         count++;
1898                                 }
1899                         }
1900
1901                         if (count==0) {
1902                                 /* keep as 0,0,0 */
1903                         } else if(count > 0) {
1904                                 mul_v3_fl(vec, 1.0f / count);
1905                         } else {
1906                                 /* use first index if its out of range */
1907                                 dm->getVertCo(dm, 0, vec);
1908                         }
1909                 }
1910
1911                 if(em)
1912                         BKE_mesh_end_editmesh(me, em);
1913         }
1914         else if (ELEM(par->type, OB_CURVE, OB_SURF)) {
1915                 Nurb *nu;
1916                 Curve *cu;
1917                 BPoint *bp;
1918                 BezTriple *bezt;
1919                 int found= 0;
1920                 ListBase *nurbs;
1921
1922                 cu= par->data;
1923                 nurbs= BKE_curve_nurbs(cu);
1924                 nu= nurbs->first;
1925
1926                 count= 0;
1927                 while(nu && !found) {
1928                         if(nu->type == CU_BEZIER) {
1929                                 bezt= nu->bezt;
1930                                 a= nu->pntsu;
1931                                 while(a--) {
1932                                         if(count==nr) {
1933                                                 found= 1;
1934                                                 VECCOPY(vec, bezt->vec[1]);
1935                                                 break;
1936                                         }
1937                                         count++;
1938                                         bezt++;
1939                                 }
1940                         }
1941                         else {
1942                                 bp= nu->bp;
1943                                 a= nu->pntsu*nu->pntsv;
1944                                 while(a--) {
1945                                         if(count==nr) {
1946                                                 found= 1;
1947                                                 memcpy(vec, bp->vec, sizeof(float)*3);
1948                                                 break;
1949                                         }
1950                                         count++;
1951                                         bp++;
1952                                 }
1953                         }
1954                         nu= nu->next;
1955                 }
1956
1957         }
1958         else if(par->type==OB_LATTICE) {
1959                 Lattice *latt= par->data;
1960                 BPoint *bp;
1961                 DispList *dl = find_displist(&par->disp, DL_VERTS);
1962                 float *co = dl?dl->verts:NULL;
1963                 
1964                 if(latt->editlatt) latt= latt->editlatt->latt;
1965                 
1966                 a= latt->pntsu*latt->pntsv*latt->pntsw;
1967                 count= 0;
1968                 bp= latt->def;
1969                 while(a--) {
1970                         if(count==nr) {
1971                                 if(co)
1972                                         memcpy(vec, co, 3*sizeof(float));
1973                                 else
1974                                         memcpy(vec, bp->vec, 3*sizeof(float));
1975                                 break;
1976                         }
1977                         count++;
1978                         if(co) co+= 3;
1979                         else bp++;
1980                 }
1981         }
1982 }
1983
1984 static void ob_parvert3(Object *ob, Object *par, float mat[][4])
1985 {
1986         float cmat[3][3], v1[3], v2[3], v3[3], q[4];
1987
1988         /* in local ob space */
1989         unit_m4(mat);
1990         
1991         if (ELEM4(par->type, OB_MESH, OB_SURF, OB_CURVE, OB_LATTICE)) {
1992                 
1993                 give_parvert(par, ob->par1, v1);
1994                 give_parvert(par, ob->par2, v2);
1995                 give_parvert(par, ob->par3, v3);
1996                                 
1997                 tri_to_quat( q,v1, v2, v3);
1998                 quat_to_mat3( cmat,q);
1999                 copy_m4_m3(mat, cmat);
2000                 
2001                 if(ob->type==OB_CURVE) {
2002                         VECCOPY(mat[3], v1);
2003                 }
2004                 else {
2005                         add_v3_v3v3(mat[3], v1, v2);
2006                         add_v3_v3(mat[3], v3);
2007                         mul_v3_fl(mat[3], 0.3333333f);
2008                 }
2009         }
2010 }
2011
2012 // XXX what the hell is this?
2013 static int no_parent_ipo=0;
2014 void set_no_parent_ipo(int val)
2015 {
2016         no_parent_ipo= val;
2017 }
2018
2019 void where_is_object_time(Scene *scene, Object *ob, float ctime)
2020 {
2021         float *fp1, *fp2, slowmat[4][4] = MAT4_UNITY;
2022         float stime=ctime, fac1, fac2;
2023         int a;
2024         
2025         /* new version: correct parent+vertexparent and track+parent */
2026         /* this one only calculates direct attached parent and track */
2027         /* is faster, but should keep track of timeoffs */
2028         
2029         if(ob==NULL) return;
2030         
2031         /* execute drivers only, as animation has already been done */
2032         BKE_animsys_evaluate_animdata(&ob->id, ob->adt, ctime, ADT_RECALC_DRIVERS);
2033         
2034         if(ob->parent) {
2035                 Object *par= ob->parent;
2036                 
2037                 // XXX depreceated - animsys
2038                 if(ob->ipoflag & OB_OFFS_PARENT) ctime-= give_timeoffset(ob);
2039                 
2040                 /* hurms, code below conflicts with depgraph... (ton) */
2041                 /* and even worse, it gives bad effects for NLA stride too (try ctime != par->ctime, with MBlur) */
2042                 if(no_parent_ipo==0 && stime != par->ctime) {
2043                         // only for ipo systems? 
2044                         Object tmp= *par;
2045                         
2046                         if(par->proxy_from);    // was a copied matrix, no where_is! bad...
2047                         else where_is_object_time(scene, par, ctime);
2048
2049                         solve_parenting(scene, ob, par, ob->obmat, slowmat, 0);
2050
2051                         *par= tmp;
2052                 }
2053                 else
2054                         solve_parenting(scene, ob, par, ob->obmat, slowmat, 0);
2055                 
2056                 if(ob->partype & PARSLOW) {
2057                         // include framerate
2058                         fac1= ( 1.0f / (1.0f + (float)fabs(give_timeoffset(ob))) );
2059                         if(fac1 >= 1.0f) return;
2060                         fac2= 1.0f-fac1;
2061                         
2062                         fp1= ob->obmat[0];
2063                         fp2= slowmat[0];
2064                         for(a=0; a<16; a++, fp1++, fp2++) {
2065                                 fp1[0]= fac1*fp1[0] + fac2*fp2[0];
2066                         }
2067                 }
2068         }
2069         else {
2070                 object_to_mat4(ob, ob->obmat);
2071         }
2072
2073         /* solve constraints */
2074         if (ob->constraints.first && !(ob->flag & OB_NO_CONSTRAINTS)) {
2075                 bConstraintOb *cob;
2076                 
2077                 cob= constraints_make_evalob(scene, ob, NULL, CONSTRAINT_OBTYPE_OBJECT);
2078                 
2079                 /* constraints need ctime, not stime. Some call where_is_object_time and bsystem_time */
2080                 solve_constraints (&ob->constraints, cob, ctime);
2081                 
2082                 constraints_clear_evalob(cob);
2083         }
2084         
2085         /* set negative scale flag in object */
2086         if(is_negative_m4(ob->obmat))   ob->transflag |= OB_NEG_SCALE;
2087         else                                                    ob->transflag &= ~OB_NEG_SCALE;
2088 }
2089
2090 static void solve_parenting (Scene *scene, Object *ob, Object *par, float obmat[][4], float slowmat[][4], int simul)
2091 {
2092         float totmat[4][4];
2093         float tmat[4][4];
2094         float locmat[4][4];
2095         float vec[3];
2096         int ok;
2097         
2098         object_to_mat4(ob, locmat);
2099         
2100         if(ob->partype & PARSLOW) copy_m4_m4(slowmat, obmat);
2101
2102         switch(ob->partype & PARTYPE) {
2103         case PAROBJECT:
2104                 ok= 0;
2105                 if(par->type==OB_CURVE) {
2106                         if( ((Curve *)par->data)->flag & CU_PATH ) {
2107                                 ob_parcurve(scene, ob, par, tmat);
2108                                 ok= 1;
2109                         }
2110                 }
2111                 
2112                 if(ok) mul_serie_m4(totmat, par->obmat, tmat, 
2113                         NULL, NULL, NULL, NULL, NULL, NULL);
2114                 else copy_m4_m4(totmat, par->obmat);
2115                 
2116                 break;
2117         case PARBONE:
2118                 ob_parbone(ob, par, tmat);
2119                 mul_serie_m4(totmat, par->obmat, tmat,         
2120                         NULL, NULL, NULL, NULL, NULL, NULL);
2121                 break;
2122                 
2123         case PARVERT1:
2124                 unit_m4(totmat);
2125                 if (simul){
2126                         VECCOPY(totmat[3], par->obmat[3]);
2127                 }
2128                 else{
2129                         give_parvert(par, ob->par1, vec);
2130                         mul_v3_m4v3(totmat[3], par->obmat, vec);
2131                 }
2132                 break;
2133         case PARVERT3:
2134                 ob_parvert3(ob, par, tmat);
2135                 
2136                 mul_serie_m4(totmat, par->obmat, tmat,         
2137                         NULL, NULL, NULL, NULL, NULL, NULL);
2138                 break;
2139                 
2140         case PARSKEL:
2141                 copy_m4_m4(totmat, par->obmat);
2142                 break;
2143         }
2144         
2145         // total 
2146         mul_serie_m4(tmat, totmat, ob->parentinv,         
2147                 NULL, NULL, NULL, NULL, NULL, NULL);
2148         mul_serie_m4(obmat, tmat, locmat,         
2149                 NULL, NULL, NULL, NULL, NULL, NULL);
2150         
2151         if (simul) {
2152
2153         }
2154         else{
2155                 // external usable originmat 
2156                 copy_m3_m4(originmat, tmat);
2157                 
2158                 // origin, voor help line
2159                 if( (ob->partype & 15)==PARSKEL ) {
2160                         VECCOPY(ob->orig, par->obmat[3]);
2161                 }
2162                 else {
2163                         VECCOPY(ob->orig, totmat[3]);
2164                 }
2165         }
2166
2167 }
2168
2169 void where_is_object(struct Scene *scene, Object *ob)
2170 {
2171         where_is_object_time(scene, ob, (float)scene->r.cfra);
2172 }
2173
2174
2175 void where_is_object_simul(Scene *scene, Object *ob)
2176 /* was written for the old game engine (until 2.04) */
2177 /* It seems that this function is only called
2178 for a lamp that is the child of another object */
2179 {
2180         Object *par;
2181         //Ipo *ipo;
2182         float *fp1, *fp2;
2183         float slowmat[4][4];
2184         float fac1, fac2;
2185         int a;
2186         
2187         /* NO TIMEOFFS */
2188         if(ob->parent) {
2189                 par= ob->parent;
2190                 
2191                 solve_parenting(scene, ob, par, ob->obmat, slowmat, 1);
2192
2193                 if(ob->partype & PARSLOW) {
2194
2195                         fac1= (float)(1.0/(1.0+ fabs(give_timeoffset(ob))));
2196                         fac2= 1.0f-fac1;
2197                         fp1= ob->obmat[0];
2198                         fp2= slowmat[0];
2199                         for(a=0; a<16; a++, fp1++, fp2++) {
2200                                 fp1[0]= fac1*fp1[0] + fac2*fp2[0];
2201                         }
2202                 }
2203                 
2204         }
2205         else {
2206                 object_to_mat4(ob, ob->obmat);
2207         }
2208         
2209         /* solve constraints */
2210         if (ob->constraints.first) {
2211                 bConstraintOb *cob;
2212                 
2213                 cob= constraints_make_evalob(scene, ob, NULL, CONSTRAINT_OBTYPE_OBJECT);
2214                 solve_constraints(&ob->constraints, cob, (float)scene->r.cfra);
2215                 constraints_clear_evalob(cob);
2216         }
2217 }
2218
2219 /* for calculation of the inverse parent transform, only used for editor */
2220 void what_does_parent(Scene *scene, Object *ob, Object *workob)
2221 {
2222         clear_workob(workob);
2223         
2224         unit_m4(workob->obmat);
2225         unit_m4(workob->parentinv);
2226         unit_m4(workob->constinv);
2227         workob->parent= ob->parent;
2228
2229         workob->trackflag= ob->trackflag;
2230         workob->upflag= ob->upflag;
2231         
2232         workob->partype= ob->partype;
2233         workob->par1= ob->par1;
2234         workob->par2= ob->par2;
2235         workob->par3= ob->par3;
2236
2237         workob->constraints.first = ob->constraints.first;
2238         workob->constraints.last = ob->constraints.last;
2239
2240         strcpy(workob->parsubstr, ob->parsubstr); 
2241
2242         where_is_object(scene, workob);
2243 }
2244
2245 BoundBox *unit_boundbox()
2246 {
2247         BoundBox *bb;
2248         float min[3] = {-1.0f,-1.0f,-1.0f}, max[3] = {-1.0f,-1.0f,-1.0f};
2249
2250         bb= MEM_callocN(sizeof(BoundBox), "bb");
2251         boundbox_set_from_min_max(bb, min, max);
2252         
2253         return bb;
2254 }
2255
2256 void boundbox_set_from_min_max(BoundBox *bb, float min[3], float max[3])
2257 {
2258         bb->vec[0][0]=bb->vec[1][0]=bb->vec[2][0]=bb->vec[3][0]= min[0];
2259         bb->vec[4][0]=bb->vec[5][0]=bb->vec[6][0]=bb->vec[7][0]= max[0];
2260         
2261         bb->vec[0][1]=bb->vec[1][1]=bb->vec[4][1]=bb->vec[5][1]= min[1];
2262         bb->vec[2][1]=bb->vec[3][1]=bb->vec[6][1]=bb->vec[7][1]= max[1];
2263
2264         bb->vec[0][2]=bb->vec[3][2]=bb->vec[4][2]=bb->vec[7][2]= min[2];
2265         bb->vec[1][2]=bb->vec[2][2]=bb->vec[5][2]=bb->vec[6][2]= max[2];
2266 }
2267
2268 BoundBox *object_get_boundbox(Object *ob)
2269 {
2270         BoundBox *bb= NULL;
2271         
2272         if(ob->type==OB_MESH) {
2273                 bb = mesh_get_bb(ob);
2274         }
2275         else if (ELEM3(ob->type, OB_CURVE, OB_SURF, OB_FONT)) {
2276                 bb= ob->bb ? ob->bb : ( (Curve *)ob->data )->bb;
2277         }
2278         else if(ob->type==OB_MBALL) {
2279                 bb= ob->bb;
2280         }
2281         return bb;
2282 }
2283
2284 /* used to temporally disable/enable boundbox */
2285 void object_boundbox_flag(Object *ob, int flag, int set)
2286 {
2287         BoundBox *bb= object_get_boundbox(ob);
2288         if(bb) {
2289                 if(set) bb->flag |= flag;
2290                 else bb->flag &= ~flag;
2291         }
2292 }
2293
2294 void object_get_dimensions(Object *ob, float *value)
2295 {
2296         BoundBox *bb = NULL;
2297         
2298         bb= object_get_boundbox(ob);
2299         if (bb) {
2300                 float scale[3];
2301                 
2302                 mat4_to_size( scale,ob->obmat);
2303                 
2304                 value[0] = fabs(scale[0]) * (bb->vec[4][0] - bb->vec[0][0]);
2305                 value[1] = fabs(scale[1]) * (bb->vec[2][1] - bb->vec[0][1]);
2306                 value[2] = fabs(scale[2]) * (bb->vec[1][2] - bb->vec[0][2]);
2307         } else {
2308                 value[0] = value[1] = value[2] = 0.f;
2309         }
2310 }
2311
2312 void object_set_dimensions(Object *ob, const float *value)
2313 {
2314         BoundBox *bb = NULL;
2315         
2316         bb= object_get_boundbox(ob);
2317         if (bb) {
2318                 float scale[3], len[3];
2319                 
2320                 mat4_to_size( scale,ob->obmat);
2321                 
2322                 len[0] = bb->vec[4][0] - bb->vec[0][0];
2323                 len[1] = bb->vec[2][1] - bb->vec[0][1];
2324                 len[2] = bb->vec[1][2] - bb->vec[0][2];
2325                 
2326                 if (len[0] > 0.f) ob->size[0] = value[0] / len[0];
2327                 if (len[1] > 0.f) ob->size[1] = value[1] / len[1];
2328                 if (len[2] > 0.f) ob->size[2] = value[2] / len[2];
2329         }
2330 }
2331
2332 void minmax_object(Object *ob, float *min, float *max)
2333 {
2334         BoundBox bb;
2335         Mesh *me;
2336         Curve *cu;
2337         float vec[3];
2338         int a;
2339         
2340         switch(ob->type) {
2341                 
2342         case OB_CURVE:
2343         case OB_FONT:
2344         case OB_SURF:
2345                 cu= ob->data;
2346                 
2347                 if(cu->bb==NULL) tex_space_curve(cu);
2348                 bb= *(cu->bb);
2349                 
2350                 for(a=0; a<8; a++) {
2351                         mul_m4_v3(ob->obmat, bb.vec[a]);
2352                         DO_MINMAX(bb.vec[a], min, max);
2353                 }
2354                 break;
2355         case OB_ARMATURE:
2356                 if(ob->pose) {
2357                         bPoseChannel *pchan;
2358                         for(pchan= ob->pose->chanbase.first; pchan; pchan= pchan->next) {
2359                                 mul_v3_m4v3(vec, ob->obmat, pchan->pose_head);
2360                                 DO_MINMAX(vec, min, max);
2361                                 mul_v3_m4v3(vec, ob->obmat, pchan->pose_tail);
2362                                 DO_MINMAX(vec, min, max);
2363                         }
2364                         break;
2365                 }
2366                 /* no break, get_mesh will give NULL and it passes on to default */
2367         case OB_MESH:
2368                 me= get_mesh(ob);
2369                 
2370                 if(me) {
2371                         bb = *mesh_get_bb(ob);
2372                         
2373                         for(a=0; a<8; a++) {
2374                                 mul_m4_v3(ob->obmat, bb.vec[a]);
2375                                 DO_MINMAX(bb.vec[a], min, max);
2376                         }
2377                 }
2378                 if(min[0] < max[0] ) break;
2379                 
2380                 /* else here no break!!!, mesh can be zero sized */
2381                 
2382         default:
2383                 DO_MINMAX(ob->obmat[3], min, max);
2384
2385                 copy_v3_v3(vec, ob->obmat[3]);
2386                 add_v3_v3(vec, ob->size);
2387                 DO_MINMAX(vec, min, max);
2388
2389                 copy_v3_v3(vec, ob->obmat[3]);
2390                 sub_v3_v3(vec, ob->size);
2391                 DO_MINMAX(vec, min, max);
2392                 break;
2393         }
2394 }
2395
2396 int minmax_object_duplis(Scene *scene, Object *ob, float *min, float *max)
2397 {
2398         int ok= 0;
2399         if ((ob->transflag & OB_DUPLI)==0) {
2400                 return ok;
2401         } else {
2402                 ListBase *lb;
2403                 DupliObject *dob;
2404                 
2405                 lb= object_duplilist(scene, ob);
2406                 for(dob= lb->first; dob; dob= dob->next) {
2407                         if(dob->no_draw == 0) {
2408                                 BoundBox *bb= object_get_boundbox(dob->ob);
2409
2410                                 if(bb) {
2411                                         int i;
2412                                         for(i=0; i<8; i++) {
2413                                                 float vec[3];
2414                                                 mul_v3_m4v3(vec, dob->mat, bb->vec[i]);
2415                                                 DO_MINMAX(vec, min, max);
2416                                         }
2417
2418                                         ok= 1;
2419                                 }
2420                         }
2421                 }
2422                 free_object_duplilist(lb);      /* does restore */
2423         }
2424
2425         return ok;
2426 }
2427
2428 /* copied from DNA_object_types.h */
2429 typedef struct ObTfmBack {
2430         float loc[3], dloc[3], orig[3];
2431         float size[3], dsize[3];        /* scale and delta scale */
2432         float rot[3], drot[3];          /* euler rotation */
2433         float quat[4], dquat[4];        /* quaternion rotation */
2434         float rotAxis[3], drotAxis[3];  /* axis angle rotation - axis part */
2435         float rotAngle, drotAngle;      /* axis angle rotation - angle part */
2436         float obmat[4][4];              /* final worldspace matrix with constraints & animsys applied */
2437         float parentinv[4][4]; /* inverse result of parent, so that object doesn't 'stick' to parent */
2438         float constinv[4][4]; /* inverse result of constraints. doesn't include effect of parent or object local transform */
2439         float imat[4][4];       /* inverse matrix of 'obmat' for during render, old game engine, temporally: ipokeys of transform  */
2440 } ObTfmBack;
2441
2442 void *object_tfm_backup(Object *ob)
2443 {
2444         ObTfmBack *obtfm= MEM_mallocN(sizeof(ObTfmBack), "ObTfmBack");
2445         copy_v3_v3(obtfm->loc, ob->loc);
2446         copy_v3_v3(obtfm->dloc, ob->dloc);
2447         copy_v3_v3(obtfm->orig, ob->orig);
2448         copy_v3_v3(obtfm->size, ob->size);
2449         copy_v3_v3(obtfm->dsize, ob->dsize);
2450         copy_v3_v3(obtfm->rot, ob->rot);
2451         copy_v3_v3(obtfm->drot, ob->drot);
2452         copy_qt_qt(obtfm->quat, ob->quat);
2453         copy_qt_qt(obtfm->dquat, ob->dquat);
2454         copy_v3_v3(obtfm->rotAxis, ob->rotAxis);
2455         copy_v3_v3(obtfm->drotAxis, ob->drotAxis);
2456         obtfm->rotAngle= ob->rotAngle;
2457         obtfm->drotAngle= ob->drotAngle;
2458         copy_m4_m4(obtfm->obmat, ob->obmat);
2459         copy_m4_m4(obtfm->parentinv, ob->parentinv);
2460         copy_m4_m4(obtfm->constinv, ob->constinv);
2461         copy_m4_m4(obtfm->imat, ob->imat);
2462
2463         return (void *)obtfm;
2464 }
2465
2466 void object_tfm_restore(Object *ob, void *obtfm_pt)
2467 {
2468         ObTfmBack *obtfm= (ObTfmBack *)obtfm_pt;
2469         copy_v3_v3(ob->loc, obtfm->loc);
2470         copy_v3_v3(ob->dloc, obtfm->dloc);
2471         copy_v3_v3(ob->orig, obtfm->orig);
2472         copy_v3_v3(ob->size, obtfm->size);
2473         copy_v3_v3(ob->dsize, obtfm->dsize);
2474         copy_v3_v3(ob->rot, obtfm->rot);
2475         copy_v3_v3(ob->drot, obtfm->drot);
2476         copy_qt_qt(ob->quat, obtfm->quat);
2477         copy_qt_qt(ob->dquat, obtfm->dquat);
2478         copy_v3_v3(ob->rotAxis, obtfm->rotAxis);
2479         copy_v3_v3(ob->drotAxis, obtfm->drotAxis);
2480         ob->rotAngle= obtfm->rotAngle;
2481         ob->drotAngle= obtfm->drotAngle;
2482         copy_m4_m4(ob->obmat, obtfm->obmat);
2483         copy_m4_m4(ob->parentinv, obtfm->parentinv);
2484         copy_m4_m4(ob->constinv, obtfm->constinv);
2485         copy_m4_m4(ob->imat, obtfm->imat);
2486 }
2487
2488 /* proxy rule: lib_object->proxy_from == the one we borrow from, only set temporal and cleared here */
2489 /*           local_object->proxy      == pointer to library object, saved in files and read */
2490
2491 /* function below is polluted with proxy exceptions, cleanup will follow! */
2492
2493 /* the main object update call, for object matrix, constraints, keys and displist (modifiers) */
2494 /* requires flags to be set! */
2495 void object_handle_update(Scene *scene, Object *ob)
2496 {
2497         if(ob->recalc & OB_RECALC_ALL) {
2498                 /* speed optimization for animation lookups */
2499                 if(ob->pose)
2500                         make_pose_channels_hash(ob->pose);
2501
2502                 if(ob->recalc & OB_RECALC_DATA) {
2503                         if(ob->type==OB_ARMATURE) {
2504                                 /* this happens for reading old files and to match library armatures
2505                                    with poses we do it ahead of where_is_object to ensure animation
2506                                    is evaluated on the rebuilt pose, otherwise we get incorrect poses
2507                                    on file load */
2508                                 if(ob->pose==NULL || (ob->pose->flag & POSE_RECALC))
2509                                         armature_rebuild_pose(ob, ob->data);
2510                         }
2511                 }
2512
2513                 /* XXX new animsys warning: depsgraph tag OB_RECALC_DATA should not skip drivers, 
2514                    which is only in where_is_object now */
2515                 // XXX: should this case be OB_RECALC_OB instead?
2516                 if(ob->recalc & OB_RECALC_ALL) {
2517                         
2518                         if (G.f & G_DEBUG)
2519                                 printf("recalcob %s\n", ob->id.name+2);
2520                         
2521                         /* handle proxy copy for target */
2522                         if(ob->id.lib && ob->proxy_from) {
2523                                 // printf("ob proxy copy, lib ob %s proxy %s\n", ob->id.name, ob->proxy_from->id.name);
2524                                 if(ob->proxy_from->proxy_group) {/* transform proxy into group space */
2525                                         Object *obg= ob->proxy_from->proxy_group;
2526                                         invert_m4_m4(obg->imat, obg->obmat);
2527                                         mul_m4_m4m4(ob->obmat, ob->proxy_from->obmat, obg->imat);
2528                                 }
2529                                 else
2530                                         copy_m4_m4(ob->obmat, ob->proxy_from->obmat);
2531                         }
2532                         else
2533                                 where_is_object(scene, ob);
2534                 }
2535                 
2536                 if(ob->recalc & OB_RECALC_DATA) {
2537                         ID *data_id= (ID *)ob->data;
2538                         AnimData *adt= BKE_animdata_from_id(data_id);
2539                         float ctime= (float)scene->r.cfra; // XXX this is bad...
2540                         ListBase pidlist;
2541                         PTCacheID *pid;
2542                         
2543                         if (G.f & G_DEBUG)
2544                                 printf("recalcdata %s\n", ob->id.name+2);
2545                         
2546                         /* includes all keys and modifiers */
2547                         if(ob->type==OB_MESH) {
2548                                 EditMesh *em = (ob == scene->obedit)? BKE_mesh_get_editmesh(ob->data): NULL;
2549                                 
2550                                 /* evaluate drivers */
2551                                 // XXX: should we push this to derivedmesh instead?
2552                                 BKE_animsys_evaluate_animdata(data_id, adt, ctime, ADT_RECALC_DRIVERS);
2553                                 
2554                                         // here was vieweditdatamask? XXX
2555                                 if(em) {
2556                                         makeDerivedMesh(scene, ob, em, CD_MASK_BAREMESH);
2557                                         BKE_mesh_end_editmesh(ob->data, em);
2558                                 } else
2559                                         makeDerivedMesh(scene, ob, NULL, CD_MASK_BAREMESH);
2560                         }
2561                         else if(ob->type==OB_MBALL) {
2562                                 makeDispListMBall(scene, ob);
2563                         } 
2564                         else if(ELEM3(ob->type, OB_CURVE, OB_SURF, OB_FONT)) {
2565                                 makeDispListCurveTypes(scene, ob, 0);
2566                         }
2567                         else if(ELEM(ob->type, OB_CAMERA, OB_LAMP)) {
2568                                 /* evaluate drivers */
2569                                 BKE_animsys_evaluate_animdata(data_id, adt, ctime, ADT_RECALC_DRIVERS);
2570                         }
2571                         else if(ob->type==OB_LATTICE) {
2572                                 lattice_calc_modifiers(scene, ob);
2573                         }
2574                         else if(ob->type==OB_ARMATURE) {
2575                                 /* evaluate drivers */
2576                                 BKE_animsys_evaluate_animdata(data_id, adt, ctime, ADT_RECALC_DRIVERS);
2577                                 
2578                                 if(ob->id.lib && ob->proxy_from) {
2579                                         copy_pose_result(ob->pose, ob->proxy_from->pose);
2580                                         // printf("pose proxy copy, lib ob %s proxy %s\n", ob->id.name, ob->proxy_from->id.name);
2581                                 }
2582                                 else {
2583                                         where_is_pose(scene, ob);
2584                                 }
2585                         }
2586
2587                         if(ob->particlesystem.first) {
2588                                 ParticleSystem *tpsys, *psys;
2589                                 DerivedMesh *dm;
2590                                 ob->transflag &= ~OB_DUPLIPARTS;
2591                                 
2592                                 psys= ob->particlesystem.first;
2593                                 while(psys) {
2594                                         if(psys_check_enabled(ob, psys)) {
2595                                                 /* check use of dupli objects here */
2596                                                 if(psys->part && (psys->part->draw_as == PART_DRAW_REND || G.rendering) &&
2597                                                         ((psys->part->ren_as == PART_DRAW_OB && psys->part->dup_ob)
2598                                                         || (psys->part->ren_as == PART_DRAW_GR && psys->part->dup_group)))
2599                                                         ob->transflag |= OB_DUPLIPARTS;
2600
2601                                                 particle_system_update(scene, ob, psys);
2602                                                 psys= psys->next;
2603                                         }
2604                                         else if(psys->flag & PSYS_DELETE) {
2605                                                 tpsys=psys->next;
2606                                                 BLI_remlink(&ob->particlesystem, psys);
2607                                                 psys_free(ob,psys);
2608                                                 psys= tpsys;
2609                                         }
2610                                         else
2611                                                 psys= psys->next;
2612                                 }
2613
2614                                 if(G.rendering && ob->transflag & OB_DUPLIPARTS) {
2615                                         /* this is to make sure we get render level duplis in groups:
2616                                          * the derivedmesh must be created before init_render_mesh,
2617                                          * since object_duplilist does dupliparticles before that */
2618                                         dm = mesh_create_derived_render(scene, ob, CD_MASK_BAREMESH|CD_MASK_MTFACE|CD_MASK_MCOL);
2619                                         dm->release(dm);
2620
2621                                         for(psys=ob->particlesystem.first; psys; psys=psys->next)
2622                                                 psys_get_modifier(ob, psys)->flag &= ~eParticleSystemFlag_psys_updated;
2623                                 }
2624                         }
2625
2626                         /* check if quick cache is needed */
2627                         BKE_ptcache_ids_from_object(&pidlist, ob, scene, MAX_DUPLI_RECUR);
2628
2629                         for(pid=pidlist.first; pid; pid=pid->next) {
2630                                 if((pid->cache->flag & PTCACHE_BAKED)
2631                                         || (pid->cache->flag & PTCACHE_QUICK_CACHE)==0)
2632                                         continue;
2633
2634                                 if(pid->cache->flag & PTCACHE_OUTDATED || (pid->cache->flag & PTCACHE_SIMULATION_VALID)==0) {
2635                                         scene->physics_settings.quick_cache_step =
2636                                                 scene->physics_settings.quick_cache_step ?
2637                                                 MIN2(scene->physics_settings.quick_cache_step, pid->cache->step) :
2638                                                 pid->cache->step;
2639                                 }
2640                         }
2641
2642                         BLI_freelistN(&pidlist);
2643                 }
2644
2645                 /* the no-group proxy case, we call update */
2646                 if(ob->proxy && ob->proxy_group==NULL) {
2647                         /* set pointer in library proxy target, for copying, but restore it */
2648                         ob->proxy->proxy_from= ob;
2649                         // printf("call update, lib ob %s proxy %s\n", ob->proxy->id.name, ob->id.name);
2650                         object_handle_update(scene, ob->proxy);
2651                 }
2652         
2653                 ob->recalc &= ~OB_RECALC_ALL;
2654         }
2655
2656         /* the case when this is a group proxy, object_update is called in group.c */
2657         if(ob->proxy) {
2658                 ob->proxy->proxy_from= ob;
2659                 // printf("set proxy pointer for later group stuff %s\n", ob->id.name);
2660         }
2661 }
2662
2663 float give_timeoffset(Object *ob) {
2664         if ((ob->ipoflag & OB_OFFS_PARENTADD) && ob->parent) {
2665                 return ob->sf + give_timeoffset(ob->parent);
2666         } else {
2667                 return ob->sf;
2668         }
2669 }
2670
2671 int give_obdata_texspace(Object *ob, short **texflag, float **loc, float **size, float **rot) {
2672         
2673         if (ob->data==NULL)
2674                 return 0;
2675         
2676         switch (GS(((ID *)ob->data)->name)) {
2677         case ID_ME:
2678         {
2679                 Mesh *me= ob->data;
2680                 if (texflag)    *texflag = &me->texflag;
2681                 if (loc)                *loc = me->loc;
2682                 if (size)               *size = me->size;
2683                 if (rot)                *rot = me->rot;
2684                 break;
2685         }
2686         case ID_CU:
2687         {
2688                 Curve *cu= ob->data;
2689                 if (texflag)    *texflag = &cu->texflag;
2690                 if (loc)                *loc = cu->loc;
2691                 if (size)               *size = cu->size;
2692                 if (rot)                *rot = cu->rot;
2693                 break;
2694         }
2695         case ID_MB:
2696         {
2697                 MetaBall *mb= ob->data;
2698                 if (texflag)    *texflag = &mb->texflag;
2699                 if (loc)                *loc = mb->loc;
2700                 if (size)               *size = mb->size;
2701                 if (rot)                *rot = mb->rot;
2702                 break;
2703         }
2704         default:
2705                 return 0;
2706         }
2707         return 1;
2708 }
2709
2710 /*
2711  * Test a bounding box for ray intersection
2712  * assumes the ray is already local to the boundbox space
2713  */
2714 int ray_hit_boundbox(struct BoundBox *bb, float ray_start[3], float ray_normal[3])
2715 {
2716         static int triangle_indexes[12][3] = {{0, 1, 2}, {0, 2, 3},
2717                                                                                   {3, 2, 6}, {3, 6, 7},
2718                                                                                   {1, 2, 6}, {1, 6, 5}, 
2719                                                                                   {5, 6, 7}, {4, 5, 7},
2720                                                                                   {0, 3, 7}, {0, 4, 7},
2721                                                                                   {0, 1, 5}, {0, 4, 5}};
2722         int result = 0;
2723         int i;
2724         
2725         for (i = 0; i < 12 && result == 0; i++)
2726         {
2727                 float lambda;
2728                 int v1, v2, v3;
2729                 v1 = triangle_indexes[i][0];
2730                 v2 = triangle_indexes[i][1];
2731                 v3 = triangle_indexes[i][2];
2732                 result = isect_ray_tri_v3(ray_start, ray_normal, bb->vec[v1], bb->vec[v2], bb->vec[v3], &lambda, NULL);
2733         }
2734         
2735         return result;
2736 }
2737
2738 static int pc_cmp(void *a, void *b)
2739 {
2740         LinkData *ad = a, *bd = b;
2741         if(GET_INT_FROM_POINTER(ad->data) > GET_INT_FROM_POINTER(bd->data))
2742                 return 1;
2743         else return 0;
2744 }
2745
2746 int object_insert_ptcache(Object *ob) 
2747 {
2748         LinkData *link = NULL;
2749         int i = 0;
2750
2751         BLI_sortlist(&ob->pc_ids, pc_cmp);
2752
2753         for(link=ob->pc_ids.first, i = 0; link; link=link->next, i++) 
2754         {
2755                 int index = GET_INT_FROM_POINTER(link->data);
2756
2757                 if(i < index)
2758                         break;
2759         }
2760
2761         link = MEM_callocN(sizeof(LinkData), "PCLink");
2762         link->data = SET_INT_IN_POINTER(i);
2763         BLI_addtail(&ob->pc_ids, link);
2764
2765         return i;
2766 }
2767
2768 /* 'lens' may be set for envmap only */
2769 void object_camera_matrix(
2770                 RenderData *rd, Object *camera, int winx, int winy, short field_second,
2771                 float winmat[][4], rctf *viewplane, float *clipsta, float *clipend, float *lens, float *ycor,
2772                 float *viewdx, float *viewdy
2773 ) {
2774         Camera *cam=NULL;
2775         float pixsize;
2776         float shiftx=0.0, shifty=0.0, winside, viewfac;
2777
2778         rd->mode &= ~(R_ORTHO|R_PANORAMA);
2779
2780         /* question mark */
2781         (*ycor)= rd->yasp / rd->xasp;
2782         if(rd->mode & R_FIELDS)
2783                 (*ycor) *= 2.0f;
2784
2785         if(camera->type==OB_CAMERA) {
2786                 cam= camera->data;
2787
2788                 if(cam->type==CAM_ORTHO) rd->mode |= R_ORTHO;
2789                 if(cam->flag & CAM_PANORAMA) rd->mode |= R_PANORAMA;
2790
2791                 /* solve this too... all time depending stuff is in convertblender.c?
2792                  * Need to update the camera early because it's used for projection matrices
2793                  * and other stuff BEFORE the animation update loop is done
2794                  * */
2795 #if 0 // XXX old animation system
2796                 if(cam->ipo) {
2797                         calc_ipo(cam->ipo, frame_to_float(re->scene, re->r.cfra));
2798                         execute_ipo(&cam->id, cam->ipo);
2799                 }
2800 #endif // XXX old animation system
2801                 shiftx=cam->shiftx;
2802                 shifty=cam->shifty;
2803                 (*lens)= cam->lens;
2804                 (*clipsta)= cam->clipsta;
2805                 (*clipend)= cam->clipend;
2806         }
2807         else if(camera->type==OB_LAMP) {
2808                 Lamp *la= camera->data;
2809                 float fac= cos( M_PI*la->spotsize/360.0 );
2810                 float phi= acos(fac);
2811
2812                 (*lens)= 16.0*fac/sin(phi);
2813                 if((*lens)==0.0f)
2814                         (*lens)= 35.0;
2815                 (*clipsta)= la->clipsta;
2816                 (*clipend)= la->clipend;
2817         }
2818         else {  /* envmap exception... */;
2819                 if((*lens)==0.0f)
2820                         (*lens)= 16.0;
2821
2822                 if((*clipsta)==0.0f || (*clipend)==0.0f) {
2823                         (*clipsta)= 0.1f;
2824                         (*clipend)= 1000.0f;
2825                 }
2826         }
2827
2828         /* ortho only with camera available */
2829         if(cam && rd->mode & R_ORTHO) {
2830                 if(rd->xasp*winx >= rd->yasp*winy) {
2831                         viewfac= winx;
2832                 }
2833                 else {
2834                         viewfac= (*ycor) * winy;
2835                 }
2836                 /* ortho_scale == 1.0 means exact 1 to 1 mapping */
2837                 pixsize= cam->ortho_scale/viewfac;
2838         }
2839         else {
2840                 if(rd->xasp*winx >= rd->yasp*winy)      viewfac= ((*lens) * winx)/32.0;
2841                 else                                                            viewfac= (*ycor) * ((*lens) * winy)/32.0;
2842                 pixsize= (*clipsta) / viewfac;
2843         }
2844
2845         /* viewplane fully centered, zbuffer fills in jittered between -.5 and +.5 */
2846         winside= MAX2(winx, winy);
2847         viewplane->xmin= -0.5f*(float)winx + shiftx*winside;
2848         viewplane->ymin= -0.5f*(*ycor)*(float)winy + shifty*winside;
2849         viewplane->xmax=  0.5f*(float)winx + shiftx*winside;
2850         viewplane->ymax=  0.5f*(*ycor)*(float)winy + shifty*winside;
2851
2852         if(field_second) {
2853                 if(rd->mode & R_ODDFIELD) {
2854                         viewplane->ymin-= 0.5 * (*ycor);
2855                         viewplane->ymax-= 0.5 * (*ycor);
2856                 }
2857                 else {
2858                         viewplane->ymin+= 0.5 * (*ycor);
2859                         viewplane->ymax+= 0.5 * (*ycor);
2860                 }
2861         }
2862         /* the window matrix is used for clipping, and not changed during OSA steps */
2863         /* using an offset of +0.5 here would give clip errors on edges */
2864         viewplane->xmin *= pixsize;
2865         viewplane->xmax *= pixsize;
2866         viewplane->ymin *= pixsize;
2867         viewplane->ymax *= pixsize;
2868
2869         (*viewdx)= pixsize;
2870         (*viewdy)= (*ycor) * pixsize;
2871
2872         if(rd->mode & R_ORTHO)
2873                 orthographic_m4(winmat, viewplane->xmin, viewplane->xmax, viewplane->ymin, viewplane->ymax, *clipsta, *clipend);
2874         else
2875                 perspective_m4(winmat, viewplane->xmin, viewplane->xmax, viewplane->ymin, viewplane->ymax, *clipsta, *clipend);
2876
2877 }
2878
2879 #if 0
2880 static int pc_findindex(ListBase *listbase, int index)
2881 {
2882         LinkData *link= NULL;
2883         int number= 0;
2884         
2885         if (listbase == NULL) return -1;
2886         
2887         link= listbase->first;
2888         while (link) {
2889                 if ((int)link->data == index)
2890                         return number;
2891                 
2892                 number++;
2893                 link= link->next;
2894         }
2895         
2896         return -1;
2897 }
2898
2899 void object_delete_ptcache(Object *ob, int index) 
2900 {
2901         int list_index = pc_findindex(&ob->pc_ids, index);
2902         LinkData *link = BLI_findlink(&ob->pc_ids, list_index);
2903         BLI_freelinkN(&ob->pc_ids, link);
2904 }
2905 #endif
2906
2907 /* shape key utility function */
2908
2909 /************************* Mesh ************************/
2910 static KeyBlock *insert_meshkey(Scene *scene, Object *ob, char *name, int from_mix)
2911 {
2912         Mesh *me= ob->data;
2913         Key *key= me->key;
2914         KeyBlock *kb;
2915         int newkey= 0;
2916
2917         if(key == NULL) {
2918                 key= me->key= add_key((ID *)me);
2919                 key->type= KEY_RELATIVE;
2920                 newkey= 1;
2921         }
2922
2923         if(newkey || from_mix==FALSE) {
2924                 /* create from mesh */
2925                 kb= add_keyblock(key, name);
2926                 mesh_to_key(me, kb);
2927         }
2928         else {
2929                 /* copy from current values */
2930                 float *data= do_ob_key(scene, ob);
2931
2932                 /* create new block with prepared data */
2933                 kb= add_keyblock(key, name);
2934                 kb->data= data;
2935                 kb->totelem= me->totvert;
2936         }
2937
2938         return kb;
2939 }
2940 /************************* Lattice ************************/
2941 static KeyBlock *insert_lattkey(Scene *scene, Object *ob, char *name, int from_mix)
2942 {
2943         Lattice *lt= ob->data;
2944         Key *key= lt->key;
2945         KeyBlock *kb;
2946         int newkey= 0;
2947
2948         if(key==NULL) {
2949                 key= lt->key= add_key( (ID *)lt);
2950                 key->type= KEY_RELATIVE;
2951                 newkey= 1;
2952         }
2953
2954         if(newkey || from_mix==FALSE) {
2955                 kb= add_keyblock(key, name);
2956
2957                 /* create from lattice */
2958                 latt_to_key(lt, kb);
2959         }
2960         else {
2961                 /* copy from current values */
2962                 float *data= do_ob_key(scene, ob);
2963
2964                 /* create new block with prepared data */
2965                 kb= add_keyblock(key, name);
2966                 kb->totelem= lt->pntsu*lt->pntsv*lt->pntsw;
2967                 kb->data= data;
2968         }
2969
2970         return kb;
2971 }
2972 /************************* Curve ************************/
2973 static KeyBlock *insert_curvekey(Scene *scene, Object *ob, char *name, int from_mix)
2974 {
2975         Curve *cu= ob->data;
2976         Key *key= cu->key;
2977         KeyBlock *kb;
2978         ListBase *lb= BKE_curve_nurbs(cu);
2979         int newkey= 0;
2980
2981         if(key==NULL) {
2982                 key= cu->key= add_key( (ID *)cu);
2983                 key->type = KEY_RELATIVE;
2984                 newkey= 1;
2985         }
2986
2987         if(newkey || from_mix==FALSE) {
2988                 /* create from curve */
2989                 kb= add_keyblock(key, name);
2990                 if (!newkey) {
2991                         KeyBlock *basekb= (KeyBlock *)key->block.first;
2992                         kb->data= MEM_dupallocN(basekb->data);
2993                         kb->totelem= basekb->totelem;
2994                 } else curve_to_key(cu, kb, lb);
2995         }
2996         else {
2997                 /* copy from current values */
2998                 float *data= do_ob_key(scene, ob);
2999
3000                 /* create new block with prepared data */
3001                 kb= add_keyblock(key, name);
3002                 kb->totelem= count_curveverts(lb);
3003                 kb->data= data;
3004         }
3005
3006         return kb;
3007 }
3008
3009 KeyBlock *object_insert_shape_key(Scene *scene, Object *ob, char *name, int from_mix)
3010 {
3011         if(ob->type==OB_MESH)                                    return insert_meshkey(scene, ob, name, from_mix);
3012         else if ELEM(ob->type, OB_CURVE, OB_SURF)return insert_curvekey(scene, ob, name, from_mix);
3013         else if(ob->type==OB_LATTICE)                    return insert_lattkey(scene, ob, name, from_mix);
3014         else                                                                     return NULL;
3015 }
3016