synched with trunk at revision 30597
[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) ob->gpd->id.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(Scene *scene, Object *ob)
324 {
325         Object *obt;
326         Material *mat;
327         World *wrld;
328         bScreen *sc;
329         Scene *sce;
330         Curve *cu;
331         Tex *tex;
332         Group *group;
333         Camera *camera;
334         bConstraint *con;
335         //bActionStrip *strip; // XXX animsys 
336         ModifierData *md;
337         ARegion *ar;
338         RegionView3D *rv3d;
339         int a, found;
340         
341         unlink_controllers(&ob->controllers);
342         unlink_actuators(&ob->actuators);
343         
344         /* check all objects: parents en bevels and fields, also from libraries */
345         // FIXME: need to check all animation blocks (drivers)
346         obt= G.main->object.first;
347         while(obt) {
348                 if(obt->proxy==ob)
349                         obt->proxy= NULL;
350                 if(obt->proxy_from==ob) {
351                         obt->proxy_from= NULL;
352                         obt->recalc |= OB_RECALC_OB;
353                 }
354                 if(obt->proxy_group==ob)
355                         obt->proxy_group= NULL;
356                 
357                 if(obt->parent==ob) {
358                         obt->parent= NULL;
359                         obt->recalc |= OB_RECALC_ALL;
360                 }
361                 
362                 modifiers_foreachObjectLink(obt, unlink_object__unlinkModifierLinks, ob);
363                 
364                 if ELEM(obt->type, OB_CURVE, OB_FONT) {
365                         cu= obt->data;
366
367                         if(cu->bevobj==ob) {
368                                 cu->bevobj= NULL;
369                                 obt->recalc |= OB_RECALC_ALL;
370                         }
371                         if(cu->taperobj==ob) {
372                                 cu->taperobj= NULL;
373                                 obt->recalc |= OB_RECALC_ALL;
374                         }
375                         if(cu->textoncurve==ob) {
376                                 cu->textoncurve= NULL;
377                                 obt->recalc |= OB_RECALC_ALL;
378                         }
379                 }
380                 else if(obt->type==OB_ARMATURE && obt->pose) {
381                         bPoseChannel *pchan;
382                         for(pchan= obt->pose->chanbase.first; pchan; pchan= pchan->next) {
383                                 for (con = pchan->constraints.first; con; con=con->next) {
384                                         bConstraintTypeInfo *cti= constraint_get_typeinfo(con);
385                                         ListBase targets = {NULL, NULL};
386                                         bConstraintTarget *ct;
387                                         
388                                         if (cti && cti->get_constraint_targets) {
389                                                 cti->get_constraint_targets(con, &targets);
390                                                 
391                                                 for (ct= targets.first; ct; ct= ct->next) {
392                                                         if (ct->tar == ob) {
393                                                                 ct->tar = NULL;
394                                                                 strcpy(ct->subtarget, "");
395                                                                 obt->recalc |= OB_RECALC_DATA;
396                                                         }
397                                                 }
398                                                 
399                                                 if (cti->flush_constraint_targets)
400                                                         cti->flush_constraint_targets(con, &targets, 0);
401                                         }
402                                 }
403                                 if(pchan->custom==ob)
404                                         pchan->custom= NULL;
405                         }
406                 } else if(ELEM(OB_MBALL, ob->type, obt->type)) {
407                         if(is_mball_basis_for(obt, ob))
408                                 obt->recalc|= OB_RECALC_DATA;
409                 }
410                 
411                 sca_remove_ob_poin(obt, ob);
412                 
413                 for (con = obt->constraints.first; con; con=con->next) {
414                         bConstraintTypeInfo *cti= constraint_get_typeinfo(con);
415                         ListBase targets = {NULL, NULL};
416                         bConstraintTarget *ct;
417                         
418                         if (cti && cti->get_constraint_targets) {
419                                 cti->get_constraint_targets(con, &targets);
420                                 
421                                 for (ct= targets.first; ct; ct= ct->next) {
422                                         if (ct->tar == ob) {
423                                                 ct->tar = NULL;
424                                                 strcpy(ct->subtarget, "");
425                                                 obt->recalc |= OB_RECALC_DATA;
426                                         }
427                                 }
428                                 
429                                 if (cti->flush_constraint_targets)
430                                         cti->flush_constraint_targets(con, &targets, 0);
431                         }
432                 }
433                 
434                 /* object is deflector or field */
435                 if(ob->pd) {
436                         if(obt->soft)
437                                 obt->recalc |= OB_RECALC_DATA;
438
439                         /* cloth */
440                         for(md=obt->modifiers.first; md; md=md->next)
441                                 if(md->type == eModifierType_Cloth)
442                                         obt->recalc |= OB_RECALC_DATA;
443                 }
444                 
445                 /* strips */
446 #if 0 // XXX old animation system
447                 for(strip= obt->nlastrips.first; strip; strip= strip->next) {
448                         if(strip->object==ob)
449                                 strip->object= NULL;
450                         
451                         if(strip->modifiers.first) {
452                                 bActionModifier *amod;
453                                 for(amod= strip->modifiers.first; amod; amod= amod->next)
454                                         if(amod->ob==ob)
455                                                 amod->ob= NULL;
456                         }
457                 }
458 #endif // XXX old animation system
459
460                 /* particle systems */
461                 if(obt->particlesystem.first) {
462                         ParticleSystem *tpsys= obt->particlesystem.first;
463                         for(; tpsys; tpsys=tpsys->next) {
464                                 BoidState *state = NULL;
465                                 BoidRule *rule = NULL;
466
467                                 ParticleTarget *pt = tpsys->targets.first;
468                                 for(; pt; pt=pt->next) {
469                                         if(pt->ob==ob) {
470                                                 pt->ob = NULL;
471                                                 obt->recalc |= OB_RECALC_DATA;
472                                                 break;
473                                         }
474                                 }
475
476                                 if(tpsys->target_ob==ob) {
477                                         tpsys->target_ob= NULL;
478                                         obt->recalc |= OB_RECALC_DATA;
479                                 }
480
481                                 if(tpsys->part->dup_ob==ob)
482                                         tpsys->part->dup_ob= NULL;
483
484                                 if(tpsys->part->phystype==PART_PHYS_BOIDS) {
485                                         ParticleData *pa;
486                                         BoidParticle *bpa;
487                                         int p;
488
489                                         for(p=0,pa=tpsys->particles; p<tpsys->totpart; p++,pa++) {
490                                                 bpa = pa->boid;
491                                                 if(bpa->ground == ob)
492                                                         bpa->ground = NULL;
493                                         }
494                                 }
495                                 if(tpsys->part->boids) {
496                                         for(state = tpsys->part->boids->states.first; state; state=state->next) {
497                                                 for(rule = state->rules.first; rule; rule=rule->next) {
498                                                         if(rule->type==eBoidRuleType_Avoid) {
499                                                                 BoidRuleGoalAvoid *gabr = (BoidRuleGoalAvoid*)rule;
500                                                                 if(gabr->ob==ob)
501                                                                         gabr->ob= NULL;
502                                                         }
503                                                         else if(rule->type==eBoidRuleType_FollowLeader) {
504                                                                 BoidRuleFollowLeader *flbr = (BoidRuleFollowLeader*)rule;
505                                                                 if(flbr->ob==ob)
506                                                                         flbr->ob= NULL;
507                                                         }
508                                                 }
509                                         }
510                                 }
511                         }
512                         if(ob->pd)
513                                 obt->recalc |= OB_RECALC_DATA;
514                 }
515
516                 obt= obt->id.next;
517         }
518         
519         /* materials */
520         mat= G.main->mat.first;
521         while(mat) {
522         
523                 for(a=0; a<MAX_MTEX; a++) {
524                         if(mat->mtex[a] && ob==mat->mtex[a]->object) {
525                                 /* actually, test for lib here... to do */
526                                 mat->mtex[a]->object= NULL;
527                         }
528                 }
529
530                 mat= mat->id.next;
531         }
532         
533         /* textures */
534         tex= G.main->tex.first;
535         while(tex) {
536                 if(tex->env) {
537                         if(tex->env->object == ob) tex->env->object= NULL;
538                 }
539                 tex= tex->id.next;
540         }
541
542         /* worlds */
543         wrld= G.main->world.first;
544         while(wrld) {
545                 if(wrld->id.lib==NULL) {
546                         for(a=0; a<MAX_MTEX; a++) {
547                                 if(wrld->mtex[a] && ob==wrld->mtex[a]->object)
548                                         wrld->mtex[a]->object= NULL;
549                         }
550                 }
551                 
552                 wrld= wrld->id.next;
553         }
554                 
555         /* scenes */
556         sce= G.main->scene.first;
557         while(sce) {
558                 if(sce->id.lib==NULL) {
559                         if(sce->camera==ob) sce->camera= NULL;
560                         if(sce->toolsettings->skgen_template==ob) sce->toolsettings->skgen_template = NULL;
561                         if(sce->toolsettings->particle.object==ob) sce->toolsettings->particle.object= NULL;
562
563 #ifdef DURIAN_CAMERA_SWITCH
564                         {
565                                 TimeMarker *m;
566
567                                 for (m= sce->markers.first; m; m= m->next) {
568                                         if(m->camera==ob)
569                                                 m->camera= NULL;
570                                 }
571                         }
572 #endif
573                         if(sce->ed) {
574                                 Sequence *seq;
575                                 SEQ_BEGIN(sce->ed, seq)
576                                         if(seq->scene_camera==ob) {
577                                                 seq->scene_camera= NULL;
578                                         }
579                                 SEQ_END
580                         }
581                 }
582
583                 sce= sce->id.next;
584         }
585         
586 #if 0 // XXX old animation system
587         /* ipos */
588         ipo= G.main->ipo.first;
589         while(ipo) {
590                 if(ipo->id.lib==NULL) {
591                         IpoCurve *icu;
592                         for(icu= ipo->curve.first; icu; icu= icu->next) {
593                                 if(icu->driver && icu->driver->ob==ob)
594                                         icu->driver->ob= NULL;
595                         }
596                 }
597                 ipo= ipo->id.next;
598         }
599 #endif // XXX old animation system
600         
601         /* screens */
602         sc= G.main->screen.first;
603         while(sc) {
604                 ScrArea *sa= sc->areabase.first;
605                 while(sa) {
606                         SpaceLink *sl;
607
608                         for (sl= sa->spacedata.first; sl; sl= sl->next) {
609                                 if(sl->spacetype==SPACE_VIEW3D) {
610                                         View3D *v3d= (View3D*) sl;
611
612                                         found= 0;
613                                         if(v3d->camera==ob) {
614                                                 v3d->camera= NULL;
615                                                 found= 1;
616                                         }
617                                         if(v3d->localvd && v3d->localvd->camera==ob ) {
618                                                 v3d->localvd->camera= NULL;
619                                                 found += 2;
620                                         }
621
622                                         if (found) {
623                                                 if (sa->spacetype == SPACE_VIEW3D) {
624                                                         for (ar= sa->regionbase.first; ar; ar= ar->next) {
625                                                                 if (ar->regiontype==RGN_TYPE_WINDOW) {
626                                                                         rv3d= (RegionView3D *)ar->regiondata;
627                                                                         if (found == 1 || found == 3) {
628                                                                                 if (rv3d->persp == RV3D_CAMOB)
629                                                                                         rv3d->persp= RV3D_PERSP;
630                                                                         }
631                                                                         if (found == 2 || found == 3) {
632                                                                                 if (rv3d->localvd && rv3d->localvd->persp == RV3D_CAMOB)
633                                                                                         rv3d->localvd->persp= RV3D_PERSP;
634                                                                         }
635                                                                 }
636                                                         }
637                                                 }
638                                         }
639                                 }
640                                 else if(sl->spacetype==SPACE_OUTLINER) {
641                                         SpaceOops *so= (SpaceOops *)sl;
642
643                                         if(so->treestore) {
644                                                 TreeStoreElem *tselem= so->treestore->data;
645                                                 int a;
646                                                 for(a=0; a<so->treestore->usedelem; a++, tselem++) {
647                                                         if(tselem->id==(ID *)ob) tselem->id= NULL;
648                                                 }
649                                         }
650                                 }
651                                 else if(sl->spacetype==SPACE_BUTS) {
652                                         SpaceButs *sbuts= (SpaceButs *)sl;
653
654                                         if(sbuts->pinid==(ID *)ob) {
655                                                 sbuts->flag&= ~SB_PIN_CONTEXT;
656                                                 sbuts->pinid= NULL;
657                                         }
658                                 }
659                         }
660
661                         sa= sa->next;
662                 }
663                 sc= sc->id.next;
664         }
665
666         /* groups */
667         group= G.main->group.first;
668         while(group) {
669                 rem_from_group(group, ob, NULL, NULL);
670                 group= group->id.next;
671         }
672         
673         /* cameras */
674         camera= G.main->camera.first;
675         while(camera) {
676                 if (camera->dof_ob==ob) {
677                         camera->dof_ob = NULL;
678                 }
679                 camera= camera->id.next;
680         }
681 }
682
683 int exist_object(Object *obtest)
684 {
685         Object *ob;
686         
687         if(obtest==NULL) return 0;
688         
689         ob= G.main->object.first;
690         while(ob) {
691                 if(ob==obtest) return 1;
692                 ob= ob->id.next;
693         }
694         return 0;
695 }
696
697 void *add_camera(char *name)
698 {
699         Camera *cam;
700         
701         cam=  alloc_libblock(&G.main->camera, ID_CA, name);
702
703         cam->lens= 35.0f;
704         cam->clipsta= 0.1f;
705         cam->clipend= 100.0f;
706         cam->drawsize= 0.5f;
707         cam->ortho_scale= 6.0;
708         cam->flag |= CAM_SHOWPASSEPARTOUT;
709         cam->passepartalpha = 0.5f;
710         
711         return cam;
712 }
713
714 Camera *copy_camera(Camera *cam)
715 {
716         Camera *camn;
717         
718         camn= copy_libblock(cam);
719         camn->adt= BKE_copy_animdata(cam->adt);
720         
721         return camn;
722 }
723
724
725
726 void make_local_camera(Camera *cam)
727 {
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= G.main->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= G.main->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         Object *ob;
877         Lamp *lan;
878         int local=0, lib=0;
879
880         /* - only lib users: do nothing
881                 * - only local users: set flag
882                 * - mixed: make copy
883                 */
884         
885         if(la->id.lib==0) return;
886         if(la->id.us==1) {
887                 la->id.lib= 0;
888                 la->id.flag= LIB_LOCAL;
889                 new_id(0, (ID *)la, 0);
890                 return;
891         }
892         
893         ob= G.main->object.first;
894         while(ob) {
895                 if(ob->data==la) {
896                         if(ob->id.lib) lib= 1;
897                         else local= 1;
898                 }
899                 ob= ob->id.next;
900         }
901         
902         if(local && lib==0) {
903                 la->id.lib= 0;
904                 la->id.flag= LIB_LOCAL;
905                 new_id(0, (ID *)la, 0);
906         }
907         else if(local && lib) {
908                 lan= copy_lamp(la);
909                 lan->id.us= 0;
910                 
911                 ob= G.main->object.first;
912                 while(ob) {
913                         if(ob->data==la) {
914                                 
915                                 if(ob->id.lib==0) {
916                                         ob->data= lan;
917                                         lan->id.us++;
918                                         la->id.us--;
919                                 }
920                         }
921                         ob= ob->id.next;
922                 }
923         }
924 }
925
926 void free_camera(Camera *ca)
927 {
928         BKE_free_animdata((ID *)ca);
929 }
930
931 void free_lamp(Lamp *la)
932 {
933         MTex *mtex;
934         int a;
935
936         for(a=0; a<MAX_MTEX; a++) {
937                 mtex= la->mtex[a];
938                 if(mtex && mtex->tex) mtex->tex->id.us--;
939                 if(mtex) MEM_freeN(mtex);
940         }
941         
942         BKE_free_animdata((ID *)la);
943
944         curvemapping_free(la->curfalloff);
945         
946         BKE_previewimg_free(&la->preview);
947         BKE_icon_delete(&la->id);
948         la->id.icon_id = 0;
949 }
950
951 /* *************************************************** */
952
953 static void *add_obdata_from_type(int type)
954 {
955         switch (type) {
956         case OB_MESH: return add_mesh("Mesh");
957         case OB_CURVE: return add_curve("Curve", OB_CURVE);
958         case OB_SURF: return add_curve("Surf", OB_SURF);
959         case OB_FONT: return add_curve("Text", OB_FONT);
960         case OB_MBALL: return add_mball("Meta");
961         case OB_CAMERA: return add_camera("Camera");
962         case OB_LAMP: return add_lamp("Lamp");
963         case OB_LATTICE: return add_lattice("Lattice");
964         case OB_ARMATURE: return add_armature("Armature");
965         case OB_EMPTY: return NULL;
966         default:
967                 printf("add_obdata_from_type: Internal error, bad type: %d\n", type);
968                 return NULL;
969         }
970 }
971
972 static char *get_obdata_defname(int type)
973 {
974         switch (type) {
975         case OB_MESH: return "Mesh";
976         case OB_CURVE: return "Curve";
977         case OB_SURF: return "Surf";
978         case OB_FONT: return "Text";
979         case OB_MBALL: return "Mball";
980         case OB_CAMERA: return "Camera";
981         case OB_LAMP: return "Lamp";
982         case OB_LATTICE: return "Lattice";
983         case OB_ARMATURE: return "Armature";
984         case OB_EMPTY: return "Empty";
985         default:
986                 printf("get_obdata_defname: Internal error, bad type: %d\n", type);
987                 return "Empty";
988         }
989 }
990
991 /* more general add: creates minimum required data, but without vertices etc. */
992 Object *add_only_object(int type, char *name)
993 {
994         Object *ob;
995
996         ob= alloc_libblock(&G.main->object, ID_OB, name);
997
998         /* default object vars */
999         ob->type= type;
1000         
1001         ob->col[0]= ob->col[1]= ob->col[2]= 1.0;
1002         ob->col[3]= 1.0;
1003         
1004         ob->size[0]= ob->size[1]= ob->size[2]= 1.0;
1005         
1006         /* objects should default to having Euler XYZ rotations, 
1007          * but rotations default to quaternions 
1008          */
1009         ob->rotmode= ROT_MODE_EUL;
1010         /* axis-angle must not have a 0,0,0 axis, so set y-axis as default... */
1011         ob->rotAxis[1]= ob->drotAxis[1]= 1.0f;
1012         /* quaternions should be 1,0,0,0 by default.... */
1013         ob->quat[0]= ob->dquat[0]= 1.0f;
1014         /* rotation locks should be 4D for 4 component rotations by default... */
1015         ob->protectflag = OB_LOCK_ROT4D;
1016         
1017         unit_m4(ob->constinv);
1018         unit_m4(ob->parentinv);
1019         unit_m4(ob->obmat);
1020         ob->dt= OB_TEXTURE;
1021         ob->empty_drawtype= OB_ARROWS;
1022         ob->empty_drawsize= 1.0;
1023
1024         if(type==OB_CAMERA || type==OB_LAMP) {
1025                 ob->trackflag= OB_NEGZ;
1026                 ob->upflag= OB_POSY;
1027         }
1028         else {
1029                 ob->trackflag= OB_POSY;
1030                 ob->upflag= OB_POSZ;
1031         }
1032         
1033         ob->dupon= 1; ob->dupoff= 0;
1034         ob->dupsta= 1; ob->dupend= 100;
1035         ob->dupfacesca = 1.0;
1036
1037         /* Game engine defaults*/
1038         ob->mass= ob->inertia= 1.0f;
1039         ob->formfactor= 0.4f;
1040         ob->damping= 0.04f;
1041         ob->rdamping= 0.1f;
1042         ob->anisotropicFriction[0] = 1.0f;
1043         ob->anisotropicFriction[1] = 1.0f;
1044         ob->anisotropicFriction[2] = 1.0f;
1045         ob->gameflag= OB_PROP|OB_COLLISION;
1046         ob->margin = 0.0;
1047         ob->init_state=1;
1048         ob->state=1;
1049         /* ob->pad3 == Contact Processing Threshold */
1050         ob->m_contactProcessingThreshold = 1.;
1051         ob->obstacleRad = 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 Object *copy_object(Object *ob)
1268 {
1269         Object *obn;
1270         ModifierData *md;
1271         int a;
1272
1273         obn= copy_libblock(ob);
1274         
1275         if(ob->totcol) {
1276                 obn->mat= MEM_dupallocN(ob->mat);
1277                 obn->matbits= MEM_dupallocN(ob->matbits);
1278                 obn->totcol= ob->totcol;
1279         }
1280         
1281         if(ob->bb) obn->bb= MEM_dupallocN(ob->bb);
1282         obn->path= NULL;
1283         obn->flag &= ~OB_FROMGROUP;
1284         
1285         obn->modifiers.first = obn->modifiers.last= NULL;
1286         
1287         for (md=ob->modifiers.first; md; md=md->next) {
1288                 ModifierData *nmd = modifier_new(md->type);
1289                 BLI_strncpy(nmd->name, md->name, sizeof(nmd->name));
1290                 modifier_copyData(md, nmd);
1291                 BLI_addtail(&obn->modifiers, nmd);
1292         }
1293
1294         obn->prop.first = obn->prop.last = NULL;
1295         copy_properties(&obn->prop, &ob->prop);
1296         
1297         copy_sensors(&obn->sensors, &ob->sensors);
1298         copy_controllers(&obn->controllers, &ob->controllers);
1299         copy_actuators(&obn->actuators, &ob->actuators);
1300         
1301         if(ob->pose) {
1302                 copy_object_pose(obn, ob);
1303                 /* backwards compat... non-armatures can get poses in older files? */
1304                 if(ob->type==OB_ARMATURE)
1305                         armature_rebuild_pose(obn, obn->data);
1306         }
1307         defgroup_copy_list(&obn->defbase, &ob->defbase);
1308         copy_constraints(&obn->constraints, &ob->constraints, TRUE);
1309
1310         obn->mode = 0;
1311         obn->sculpt = NULL;
1312
1313         /* increase user numbers */
1314         id_us_plus((ID *)obn->data);
1315         id_lib_extern((ID *)obn->dup_group);
1316         
1317
1318         for(a=0; a<obn->totcol; a++) id_us_plus((ID *)obn->mat[a]);
1319         
1320         obn->disp.first= obn->disp.last= NULL;
1321         
1322         if(ob->pd){
1323                 obn->pd= MEM_dupallocN(ob->pd);
1324                 if(obn->pd->tex)
1325                         id_us_plus(&(obn->pd->tex->id));
1326                 if(obn->pd->rng)
1327                         obn->pd->rng = MEM_dupallocN(ob->pd->rng);
1328         }
1329         obn->soft= copy_softbody(ob->soft);
1330         obn->bsoft = copy_bulletsoftbody(ob->bsoft);
1331
1332         copy_object_particlesystems(obn, ob);
1333         
1334         obn->derivedDeform = NULL;
1335         obn->derivedFinal = NULL;
1336
1337         obn->gpulamp.first = obn->gpulamp.last = NULL;
1338         obn->pc_ids.first = obn->pc_ids.last = NULL;
1339         
1340         return obn;
1341 }
1342
1343 void expand_local_object(Object *ob)
1344 {
1345         //bActionStrip *strip;
1346         ParticleSystem *psys;
1347         int a;
1348
1349 #if 0 // XXX old animation system
1350         id_lib_extern((ID *)ob->action);
1351         id_lib_extern((ID *)ob->ipo);
1352 #endif // XXX old animation system
1353         id_lib_extern((ID *)ob->data);
1354         id_lib_extern((ID *)ob->dup_group);
1355         
1356         for(a=0; a<ob->totcol; a++) {
1357                 id_lib_extern((ID *)ob->mat[a]);
1358         }
1359 #if 0 // XXX old animation system
1360         for (strip=ob->nlastrips.first; strip; strip=strip->next) {
1361                 id_lib_extern((ID *)strip->act);
1362         }
1363 #endif // XXX old animation system
1364         for(psys=ob->particlesystem.first; psys; psys=psys->next)
1365                 id_lib_extern((ID *)psys->part);
1366 }
1367
1368 void make_local_object(Object *ob)
1369 {
1370         Object *obn;
1371         Scene *sce;
1372         Base *base;
1373         int local=0, lib=0;
1374
1375         /* - only lib users: do nothing
1376                 * - only local users: set flag
1377                 * - mixed: make copy
1378                 */
1379         
1380         if(ob->id.lib==NULL) return;
1381         
1382         ob->proxy= ob->proxy_from= NULL;
1383         
1384         if(ob->id.us==1) {
1385                 ob->id.lib= NULL;
1386                 ob->id.flag= LIB_LOCAL;
1387                 new_id(0, (ID *)ob, 0);
1388
1389         }
1390         else {
1391                 sce= G.main->scene.first;
1392                 while(sce) {
1393                         base= sce->base.first;
1394                         while(base) {
1395                                 if(base->object==ob) {
1396                                         if(sce->id.lib) lib++;
1397                                         else local++;
1398                                         break;
1399                                 }
1400                                 base= base->next;
1401                         }
1402                         sce= sce->id.next;
1403                 }
1404                 
1405                 if(local && lib==0) {
1406                         ob->id.lib= 0;
1407                         ob->id.flag= LIB_LOCAL;
1408                         new_id(0, (ID *)ob, 0);
1409                 }
1410                 else if(local && lib) {
1411                         obn= copy_object(ob);
1412                         obn->id.us= 0;
1413                         
1414                         sce= G.main->scene.first;
1415                         while(sce) {
1416                                 if(sce->id.lib==0) {
1417                                         base= sce->base.first;
1418                                         while(base) {
1419                                                 if(base->object==ob) {
1420                                                         base->object= obn;
1421                                                         obn->id.us++;
1422                                                         ob->id.us--;
1423                                                 }
1424                                                 base= base->next;
1425                                         }
1426                                 }
1427                                 sce= sce->id.next;
1428                         }
1429                 }
1430         }
1431         
1432         expand_local_object(ob);
1433 }
1434
1435 /*
1436  * Returns true if the Object is a from an external blend file (libdata)
1437  */
1438 int object_is_libdata(Object *ob)
1439 {
1440         if (!ob) return 0;
1441         if (ob->proxy) return 0;
1442         if (ob->id.lib) return 1;
1443         return 0;
1444 }
1445
1446 /* Returns true if the Object data is a from an external blend file (libdata) */
1447 int object_data_is_libdata(Object *ob)
1448 {
1449         if(!ob) return 0;
1450         if(ob->proxy && (ob->data==NULL || ((ID *)ob->data)->lib==NULL)) return 0;
1451         if(ob->id.lib) return 1;
1452         if(ob->data==NULL) return 0;
1453         if(((ID *)ob->data)->lib) return 1;
1454
1455         return 0;
1456 }
1457
1458 /* *************** PROXY **************** */
1459
1460 /* when you make proxy, ensure the exposed layers are extern */
1461 static void armature_set_id_extern(Object *ob)
1462 {
1463         bArmature *arm= ob->data;
1464         bPoseChannel *pchan;
1465         int lay= arm->layer_protected;
1466         
1467         for (pchan = ob->pose->chanbase.first; pchan; pchan=pchan->next) {
1468                 if(!(pchan->bone->layer & lay))
1469                         id_lib_extern((ID *)pchan->custom);
1470         }
1471                         
1472 }
1473
1474 void object_copy_proxy_drivers(Object *ob, Object *target)
1475 {
1476         if ((target->adt) && (target->adt->drivers.first)) {
1477                 FCurve *fcu;
1478                 
1479                 /* add new animdata block */
1480                 if(!ob->adt)
1481                         ob->adt= BKE_id_add_animdata(&ob->id);
1482                 
1483                 /* make a copy of all the drivers (for now), then correct any links that need fixing */
1484                 free_fcurves(&ob->adt->drivers);
1485                 copy_fcurves(&ob->adt->drivers, &target->adt->drivers);
1486                 
1487                 for (fcu= ob->adt->drivers.first; fcu; fcu= fcu->next) {
1488                         ChannelDriver *driver= fcu->driver;
1489                         DriverVar *dvar;
1490                         
1491                         for (dvar= driver->variables.first; dvar; dvar= dvar->next) {
1492                                 /* all drivers */
1493                                 DRIVER_TARGETS_LOOPER(dvar) 
1494                                 {
1495                                         if(dtar->id) {
1496                                                 if ((Object *)dtar->id == target)
1497                                                         dtar->id= (ID *)ob;
1498                                                 else {
1499                                                         /* only on local objects because this causes indirect links a -> b -> c,blend to point directly to a.blend
1500                                                          * when a.blend has a proxy thats linked into c.blend  */
1501                                                         if(ob->id.lib==NULL)
1502                                                                 id_lib_extern((ID *)dtar->id);
1503                                                 }
1504                                         }
1505                                 }
1506                                 DRIVER_TARGETS_LOOPER_END
1507                         }
1508                 }
1509         }
1510 }
1511
1512 /* proxy rule: lib_object->proxy_from == the one we borrow from, set temporally while object_update */
1513 /*             local_object->proxy == pointer to library object, saved in files and read */
1514 /*             local_object->proxy_group == pointer to group dupli-object, saved in files and read */
1515
1516 void object_make_proxy(Object *ob, Object *target, Object *gob)
1517 {
1518         /* paranoia checks */
1519         if(ob->id.lib || target->id.lib==NULL) {
1520                 printf("cannot make proxy\n");
1521                 return;
1522         }
1523         
1524         ob->proxy= target;
1525         ob->proxy_group= gob;
1526         id_lib_extern(&target->id);
1527         
1528         ob->recalc= target->recalc= OB_RECALC_ALL;
1529         
1530         /* copy transform */
1531         if(gob) {
1532                 VECCOPY(ob->loc, gob->loc);
1533                 VECCOPY(ob->rot, gob->rot);
1534                 VECCOPY(ob->size, gob->size);
1535                 
1536                 group_tag_recalc(gob->dup_group);
1537         }
1538         else {
1539                 VECCOPY(ob->loc, target->loc);
1540                 VECCOPY(ob->rot, target->rot);
1541                 VECCOPY(ob->size, target->size);
1542         }
1543         
1544         ob->parent= target->parent;     /* libdata */
1545         copy_m4_m4(ob->parentinv, target->parentinv);
1546         
1547         /* copy animdata stuff - drivers only for now... */
1548         object_copy_proxy_drivers(ob, target);
1549
1550         /* skip constraints? */
1551         // FIXME: this is considered by many as a bug
1552         
1553         /* set object type and link to data */
1554         ob->type= target->type;
1555         ob->data= target->data;
1556         id_us_plus((ID *)ob->data);             /* ensures lib data becomes LIB_EXTERN */
1557         
1558         /* copy material and index information */
1559         ob->actcol= ob->totcol= 0;
1560         if(ob->mat) MEM_freeN(ob->mat);
1561         if(ob->matbits) MEM_freeN(ob->matbits);
1562         ob->mat = NULL;
1563         ob->matbits= NULL;
1564         if ((target->totcol) && (target->mat) && ELEM5(ob->type, OB_MESH, OB_CURVE, OB_SURF, OB_FONT, OB_MBALL)) { //XXX OB_SUPPORT_MATERIAL
1565                 int i;
1566                 ob->colbits = target->colbits;
1567                 
1568                 ob->actcol= target->actcol;
1569                 ob->totcol= target->totcol;
1570                 
1571                 ob->mat = MEM_dupallocN(target->mat);
1572                 ob->matbits = MEM_dupallocN(target->matbits);
1573                 for(i=0; i<target->totcol; i++) {
1574                         /* dont need to run test_object_materials since we know this object is new and not used elsewhere */
1575                         id_us_plus((ID *)ob->mat[i]); 
1576                 }
1577         }
1578         
1579         /* type conversions */
1580         if(target->type == OB_ARMATURE) {
1581                 copy_object_pose(ob, target);   /* data copy, object pointers in constraints */
1582                 rest_pose(ob->pose);                    /* clear all transforms in channels */
1583                 armature_rebuild_pose(ob, ob->data);    /* set all internal links */
1584                 
1585                 armature_set_id_extern(ob);
1586         }
1587         
1588         /* copy drawtype info */
1589         ob->dt= target->dt;
1590 }
1591
1592
1593 /* *************** CALC ****************** */
1594
1595 /* there is also a timing calculation in drawobject() */
1596
1597 int no_speed_curve= 0;
1598
1599 void disable_speed_curve(int val)
1600 {
1601         no_speed_curve= val;
1602 }
1603
1604 // XXX THIS CRUFT NEEDS SERIOUS RECODING ASAP!
1605 /* ob can be NULL */
1606 float bsystem_time(struct Scene *scene, Object *ob, float cfra, float ofs)
1607 {
1608         /* returns float ( see BKE_curframe in scene.c) */
1609         cfra += scene->r.subframe;
1610         
1611         /* global time */
1612         if (scene)
1613                 cfra*= scene->r.framelen;       
1614         
1615 #if 0 // XXX old animation system
1616         if (ob) {
1617                 /* ofset frames */
1618                 if ((ob->ipoflag & OB_OFFS_PARENT) && (ob->partype & PARSLOW)==0) 
1619                         cfra-= give_timeoffset(ob);
1620         }
1621 #endif // XXX old animation system
1622         
1623         cfra-= ofs;
1624
1625         return cfra;
1626 }
1627
1628 void object_scale_to_mat3(Object *ob, float mat[][3])
1629 {
1630         float vec[3];
1631         
1632         vec[0]= ob->size[0]+ob->dsize[0];
1633         vec[1]= ob->size[1]+ob->dsize[1];
1634         vec[2]= ob->size[2]+ob->dsize[2];
1635         size_to_mat3( mat,vec);
1636 }
1637
1638 // TODO: this should take rotation orders into account later...
1639 void object_rot_to_mat3(Object *ob, float mat[][3])
1640 {
1641         float rmat[3][3], dmat[3][3];
1642         
1643         /* initialise the delta-rotation matrix, which will get (pre)multiplied 
1644          * with the rotation matrix to yield the appropriate rotation
1645          */
1646         unit_m3(dmat);
1647         
1648         /* rotations may either be quats, eulers (with various rotation orders), or axis-angle */
1649         if (ob->rotmode > 0) {
1650                 /* euler rotations (will cause gimble lock, but this can be alleviated a bit with rotation orders) */
1651                 eulO_to_mat3( rmat,ob->rot, ob->rotmode);
1652                 eulO_to_mat3( dmat,ob->drot, ob->rotmode);
1653         }
1654         else if (ob->rotmode == ROT_MODE_AXISANGLE) {
1655                 /* axis-angle -  not really that great for 3D-changing orientations */
1656                 axis_angle_to_mat3( rmat,ob->rotAxis, ob->rotAngle);
1657                 axis_angle_to_mat3( dmat,ob->drotAxis, ob->drotAngle);
1658         }
1659         else {
1660                 /* quats are normalised before use to eliminate scaling issues */
1661                 normalize_qt(ob->quat);
1662                 quat_to_mat3( rmat,ob->quat);
1663                 quat_to_mat3( dmat,ob->dquat);
1664         }
1665         
1666         /* combine these rotations */
1667         // XXX is this correct? if errors, change the order of multiplication...
1668         mul_m3_m3m3(mat, dmat, rmat);
1669 }
1670
1671 void object_mat3_to_rot(Object *ob, float mat[][3], int use_compat)
1672 {
1673         if (ob->rotmode == ROT_MODE_QUAT)
1674                 mat3_to_quat(ob->quat, mat);
1675         else if (ob->rotmode == ROT_MODE_AXISANGLE)
1676                 mat3_to_axis_angle(ob->rotAxis, &ob->rotAngle, mat);
1677         else {
1678                 if(use_compat) {
1679                         float eul[3];
1680                         VECCOPY(eul, ob->rot);
1681                         mat3_to_compatible_eulO(ob->rot, eul, ob->rotmode, mat);
1682                 }
1683                 else
1684                         mat3_to_eulO(ob->rot, ob->rotmode, mat);
1685         }
1686 }
1687
1688 /* see pchan_apply_mat4() for the equivalent 'pchan' function */
1689 void object_apply_mat4(Object *ob, float mat[][4])
1690 {
1691         float mat3[3][3];
1692         VECCOPY(ob->loc, mat[3]);
1693         mat4_to_size(ob->size, mat);
1694         copy_m3_m4(mat3, mat);
1695         object_mat3_to_rot(ob, mat3, 0);
1696 }
1697
1698 void object_to_mat3(Object *ob, float mat[][3]) /* no parent */
1699 {
1700         float smat[3][3];
1701         float rmat[3][3];
1702         /*float q1[4];*/
1703         
1704         /* size */
1705         object_scale_to_mat3(ob, smat);
1706
1707         /* rot */
1708         object_rot_to_mat3(ob, rmat);
1709         mul_m3_m3m3(mat, rmat, smat);
1710 }
1711
1712 void object_to_mat4(Object *ob, float mat[][4])
1713 {
1714         float tmat[3][3];
1715         
1716         object_to_mat3(ob, tmat);
1717         
1718         copy_m4_m3(mat, tmat);
1719
1720         add_v3_v3v3(mat[3], ob->loc, ob->dloc);
1721 }
1722
1723 int enable_cu_speed= 1;
1724
1725 static void ob_parcurve(Scene *scene, Object *ob, Object *par, float mat[][4])
1726 {
1727         Curve *cu;
1728         float q[4], vec[4], dir[3], quat[4], radius, x1, ctime;
1729         float timeoffs = 0.0, sf_orig = 0.0;
1730         
1731         unit_m4(mat);
1732         
1733         cu= par->data;
1734         if(cu->path==NULL || cu->path->data==NULL) /* only happens on reload file, but violates depsgraph still... fix! */
1735                 makeDispListCurveTypes(scene, par, 0);
1736         if(cu->path==NULL) return;
1737         
1738         /* exception, timeoffset is regarded as distance offset */
1739         if(cu->flag & CU_OFFS_PATHDIST) {
1740                 timeoffs = give_timeoffset(ob);
1741                 SWAP(float, sf_orig, ob->sf);
1742         }
1743         
1744         /* catch exceptions: feature for nla stride editing */
1745         if(ob->ipoflag & OB_DISABLE_PATH) {
1746                 ctime= 0.0f;
1747         }
1748         /* catch exceptions: curve paths used as a duplicator */
1749         else if(enable_cu_speed) {
1750                 /* ctime is now a proper var setting of Curve which gets set by Animato like any other var that's animated,
1751                  * but this will only work if it actually is animated... 
1752                  *
1753                  * we divide the curvetime calculated in the previous step by the length of the path, to get a time
1754                  * factor, which then gets clamped to lie within 0.0 - 1.0 range
1755                  */
1756                 ctime= cu->ctime / cu->pathlen;
1757                 CLAMP(ctime, 0.0, 1.0);
1758         }
1759         else {
1760                 ctime= scene->r.cfra - give_timeoffset(ob);
1761                 ctime /= cu->pathlen;
1762                 
1763                 CLAMP(ctime, 0.0, 1.0);
1764         }
1765         
1766         /* time calculus is correct, now apply distance offset */
1767         if(cu->flag & CU_OFFS_PATHDIST) {
1768                 ctime += timeoffs/cu->path->totdist;
1769
1770                 /* restore */
1771                 SWAP(float, sf_orig, ob->sf);
1772         }
1773         
1774         
1775         /* vec: 4 items! */
1776          if( where_on_path(par, ctime, vec, dir, NULL, &radius, NULL) ) {
1777
1778                 if(cu->flag & CU_FOLLOW) {
1779                         vec_to_quat( quat,dir, ob->trackflag, ob->upflag);
1780                         
1781                         /* the tilt */
1782                         normalize_v3(dir);
1783                         q[0]= (float)cos(0.5*vec[3]);
1784                         x1= (float)sin(0.5*vec[3]);
1785                         q[1]= -x1*dir[0];
1786                         q[2]= -x1*dir[1];
1787                         q[3]= -x1*dir[2];
1788                         mul_qt_qtqt(quat, q, quat);
1789                         
1790                         quat_to_mat4( mat,quat);
1791                 }
1792                 
1793                 if(cu->flag & CU_PATH_RADIUS) {
1794                         float tmat[4][4], rmat[4][4];
1795                         scale_m4_fl(tmat, radius);
1796                         mul_m4_m4m4(rmat, mat, tmat);
1797                         copy_m4_m4(mat, rmat);
1798                 }
1799
1800                 VECCOPY(mat[3], vec);
1801                 
1802         }
1803 }
1804
1805 static void ob_parbone(Object *ob, Object *par, float mat[][4])
1806 {       
1807         bPoseChannel *pchan;
1808         float vec[3];
1809         
1810         if (par->type!=OB_ARMATURE) {
1811                 unit_m4(mat);
1812                 return;
1813         }
1814         
1815         /* Make sure the bone is still valid */
1816         pchan= get_pose_channel(par->pose, ob->parsubstr);
1817         if (!pchan){
1818                 printf ("Object %s with Bone parent: bone %s doesn't exist\n", ob->id.name+2, ob->parsubstr);
1819                 unit_m4(mat);
1820                 return;
1821         }
1822
1823         /* get bone transform */
1824         copy_m4_m4(mat, pchan->pose_mat);
1825
1826         /* but for backwards compatibility, the child has to move to the tail */
1827         VECCOPY(vec, mat[1]);
1828         mul_v3_fl(vec, pchan->bone->length);
1829         add_v3_v3(mat[3], vec);
1830 }
1831
1832 static void give_parvert(Object *par, int nr, float *vec)
1833 {
1834         EditMesh *em;
1835         int a, count;
1836         
1837         vec[0]=vec[1]=vec[2]= 0.0f;
1838         
1839         if(par->type==OB_MESH) {
1840                 Mesh *me= par->data;
1841                 em = BKE_mesh_get_editmesh(me);
1842
1843                 if(em) {
1844                         EditVert *eve;
1845                         
1846                         for(eve= em->verts.first; eve; eve= eve->next) {
1847                                 if(eve->keyindex==nr) {
1848                                         memcpy(vec, eve->co, sizeof(float)*3);
1849                                         break;
1850                                 }
1851                         }
1852                         BKE_mesh_end_editmesh(me, em);
1853                 }
1854                 else {
1855                         DerivedMesh *dm = par->derivedFinal;
1856                         
1857                         if(dm) {
1858                                 MVert *mvert= dm->getVertArray(dm);
1859                                 int *index = (int *)dm->getVertDataArray(dm, CD_ORIGINDEX);
1860                                 int i, count = 0, vindex, numVerts = dm->getNumVerts(dm);
1861
1862                                 /* get the average of all verts with (original index == nr) */
1863                                 for(i = 0; i < numVerts; i++) {
1864                                         vindex= (index)? index[i]: i;
1865
1866                                         if(vindex == nr) {
1867                                                 add_v3_v3(vec, mvert[i].co);
1868                                                 count++;
1869                                         }
1870                                 }
1871
1872                                 if (count==0) {
1873                                         /* keep as 0,0,0 */
1874                                 } else if(count > 0) {
1875                                         mul_v3_fl(vec, 1.0f / count);
1876                                 } else {
1877                                         /* use first index if its out of range */
1878                                         dm->getVertCo(dm, 0, vec);
1879                                 }
1880                         }
1881                 }
1882         }
1883         else if (ELEM(par->type, OB_CURVE, OB_SURF)) {
1884                 Nurb *nu;
1885                 Curve *cu;
1886                 BPoint *bp;
1887                 BezTriple *bezt;
1888                 int found= 0;
1889                 
1890                 cu= par->data;
1891                 if(cu->editnurb)
1892                         nu= cu->editnurb->first;
1893                 else
1894                         nu= cu->nurb.first;
1895                 
1896                 count= 0;
1897                 while(nu && !found) {
1898                         if(nu->type == CU_BEZIER) {
1899                                 bezt= nu->bezt;
1900                                 a= nu->pntsu;
1901                                 while(a--) {
1902                                         if(count==nr) {
1903                                                 found= 1;
1904                                                 VECCOPY(vec, bezt->vec[1]);
1905                                                 break;
1906                                         }
1907                                         count++;
1908                                         bezt++;
1909                                 }
1910                         }
1911                         else {
1912                                 bp= nu->bp;
1913                                 a= nu->pntsu*nu->pntsv;
1914                                 while(a--) {
1915                                         if(count==nr) {
1916                                                 found= 1;
1917                                                 memcpy(vec, bp->vec, sizeof(float)*3);
1918                                                 break;
1919                                         }
1920                                         count++;
1921                                         bp++;
1922                                 }
1923                         }
1924                         nu= nu->next;
1925                 }
1926
1927         }
1928         else if(par->type==OB_LATTICE) {
1929                 Lattice *latt= par->data;
1930                 BPoint *bp;
1931                 DispList *dl = find_displist(&par->disp, DL_VERTS);
1932                 float *co = dl?dl->verts:NULL;
1933                 
1934                 if(latt->editlatt) latt= latt->editlatt;
1935                 
1936                 a= latt->pntsu*latt->pntsv*latt->pntsw;
1937                 count= 0;
1938                 bp= latt->def;
1939                 while(a--) {
1940                         if(count==nr) {
1941                                 if(co)
1942                                         memcpy(vec, co, 3*sizeof(float));
1943                                 else
1944                                         memcpy(vec, bp->vec, 3*sizeof(float));
1945                                 break;
1946                         }
1947                         count++;
1948                         if(co) co+= 3;
1949                         else bp++;
1950                 }
1951         }
1952 }
1953
1954 static void ob_parvert3(Object *ob, Object *par, float mat[][4])
1955 {
1956         float cmat[3][3], v1[3], v2[3], v3[3], q[4];
1957
1958         /* in local ob space */
1959         unit_m4(mat);
1960         
1961         if (ELEM4(par->type, OB_MESH, OB_SURF, OB_CURVE, OB_LATTICE)) {
1962                 
1963                 give_parvert(par, ob->par1, v1);
1964                 give_parvert(par, ob->par2, v2);
1965                 give_parvert(par, ob->par3, v3);
1966                                 
1967                 tri_to_quat( q,v1, v2, v3);
1968                 quat_to_mat3( cmat,q);
1969                 copy_m4_m3(mat, cmat);
1970                 
1971                 if(ob->type==OB_CURVE) {
1972                         VECCOPY(mat[3], v1);
1973                 }
1974                 else {
1975                         add_v3_v3v3(mat[3], v1, v2);
1976                         add_v3_v3(mat[3], v3);
1977                         mul_v3_fl(mat[3], 0.3333333f);
1978                 }
1979         }
1980 }
1981
1982 // XXX what the hell is this?
1983 static int no_parent_ipo=0;
1984 void set_no_parent_ipo(int val)
1985 {
1986         no_parent_ipo= val;
1987 }
1988
1989 void where_is_object_time(Scene *scene, Object *ob, float ctime)
1990 {
1991         float *fp1, *fp2, slowmat[4][4] = MAT4_UNITY;
1992         float stime=ctime, fac1, fac2;
1993         int a;
1994         
1995         /* new version: correct parent+vertexparent and track+parent */
1996         /* this one only calculates direct attached parent and track */
1997         /* is faster, but should keep track of timeoffs */
1998         
1999         if(ob==NULL) return;
2000         
2001         /* execute drivers only, as animation has already been done */
2002         BKE_animsys_evaluate_animdata(&ob->id, ob->adt, ctime, ADT_RECALC_DRIVERS);
2003         
2004         if(ob->parent) {
2005                 Object *par= ob->parent;
2006                 
2007                 // XXX depreceated - animsys
2008                 if(ob->ipoflag & OB_OFFS_PARENT) ctime-= give_timeoffset(ob);
2009                 
2010                 /* hurms, code below conflicts with depgraph... (ton) */
2011                 /* and even worse, it gives bad effects for NLA stride too (try ctime != par->ctime, with MBlur) */
2012                 if(no_parent_ipo==0 && stime != par->ctime) {
2013                         // only for ipo systems? 
2014                         Object tmp= *par;
2015                         
2016                         if(par->proxy_from);    // was a copied matrix, no where_is! bad...
2017                         else where_is_object_time(scene, par, ctime);
2018
2019                         solve_parenting(scene, ob, par, ob->obmat, slowmat, 0);
2020
2021                         *par= tmp;
2022                 }
2023                 else
2024                         solve_parenting(scene, ob, par, ob->obmat, slowmat, 0);
2025                 
2026                 if(ob->partype & PARSLOW) {
2027                         // include framerate
2028                         fac1= ( 1.0f / (1.0f + (float)fabs(give_timeoffset(ob))) );
2029                         if(fac1 >= 1.0f) return;
2030                         fac2= 1.0f-fac1;
2031                         
2032                         fp1= ob->obmat[0];
2033                         fp2= slowmat[0];
2034                         for(a=0; a<16; a++, fp1++, fp2++) {
2035                                 fp1[0]= fac1*fp1[0] + fac2*fp2[0];
2036                         }
2037                 }
2038         }
2039         else {
2040                 object_to_mat4(ob, ob->obmat);
2041         }
2042
2043         /* solve constraints */
2044         if (ob->constraints.first && !(ob->flag & OB_NO_CONSTRAINTS)) {
2045                 bConstraintOb *cob;
2046                 
2047                 cob= constraints_make_evalob(scene, ob, NULL, CONSTRAINT_OBTYPE_OBJECT);
2048                 
2049                 /* constraints need ctime, not stime. Some call where_is_object_time and bsystem_time */
2050                 solve_constraints (&ob->constraints, cob, ctime);
2051                 
2052                 constraints_clear_evalob(cob);
2053         }
2054         
2055         /* set negative scale flag in object */
2056         if(is_negative_m4(ob->obmat))   ob->transflag |= OB_NEG_SCALE;
2057         else                                                    ob->transflag &= ~OB_NEG_SCALE;
2058 }
2059
2060 static void solve_parenting (Scene *scene, Object *ob, Object *par, float obmat[][4], float slowmat[][4], int simul)
2061 {
2062         float totmat[4][4];
2063         float tmat[4][4];
2064         float locmat[4][4];
2065         float vec[3];
2066         int ok;
2067         
2068         object_to_mat4(ob, locmat);
2069         
2070         if(ob->partype & PARSLOW) copy_m4_m4(slowmat, obmat);
2071
2072         switch(ob->partype & PARTYPE) {
2073         case PAROBJECT:
2074                 ok= 0;
2075                 if(par->type==OB_CURVE) {
2076                         if( ((Curve *)par->data)->flag & CU_PATH ) {
2077                                 ob_parcurve(scene, ob, par, tmat);
2078                                 ok= 1;
2079                         }
2080                 }
2081                 
2082                 if(ok) mul_serie_m4(totmat, par->obmat, tmat, 
2083                         NULL, NULL, NULL, NULL, NULL, NULL);
2084                 else copy_m4_m4(totmat, par->obmat);
2085                 
2086                 break;
2087         case PARBONE:
2088                 ob_parbone(ob, par, tmat);
2089                 mul_serie_m4(totmat, par->obmat, tmat,         
2090                         NULL, NULL, NULL, NULL, NULL, NULL);
2091                 break;
2092                 
2093         case PARVERT1:
2094                 unit_m4(totmat);
2095                 if (simul){
2096                         VECCOPY(totmat[3], par->obmat[3]);
2097                 }
2098                 else{
2099                         give_parvert(par, ob->par1, vec);
2100                         mul_v3_m4v3(totmat[3], par->obmat, vec);
2101                 }
2102                 break;
2103         case PARVERT3:
2104                 ob_parvert3(ob, par, tmat);
2105                 
2106                 mul_serie_m4(totmat, par->obmat, tmat,         
2107                         NULL, NULL, NULL, NULL, NULL, NULL);
2108                 break;
2109                 
2110         case PARSKEL:
2111                 copy_m4_m4(totmat, par->obmat);
2112                 break;
2113         }
2114         
2115         // total 
2116         mul_serie_m4(tmat, totmat, ob->parentinv,         
2117                 NULL, NULL, NULL, NULL, NULL, NULL);
2118         mul_serie_m4(obmat, tmat, locmat,         
2119                 NULL, NULL, NULL, NULL, NULL, NULL);
2120         
2121         if (simul) {
2122
2123         }
2124         else{
2125                 // external usable originmat 
2126                 copy_m3_m4(originmat, tmat);
2127                 
2128                 // origin, voor help line
2129                 if( (ob->partype & 15)==PARSKEL ) {
2130                         VECCOPY(ob->orig, par->obmat[3]);
2131                 }
2132                 else {
2133                         VECCOPY(ob->orig, totmat[3]);
2134                 }
2135         }
2136
2137 }
2138
2139 void where_is_object(struct Scene *scene, Object *ob)
2140 {
2141         where_is_object_time(scene, ob, (float)scene->r.cfra);
2142 }
2143
2144
2145 void where_is_object_simul(Scene *scene, Object *ob)
2146 /* was written for the old game engine (until 2.04) */
2147 /* It seems that this function is only called
2148 for a lamp that is the child of another object */
2149 {
2150         Object *par;
2151         //Ipo *ipo;
2152         float *fp1, *fp2;
2153         float slowmat[4][4];
2154         float fac1, fac2;
2155         int a;
2156         
2157         /* NO TIMEOFFS */
2158         if(ob->parent) {
2159                 par= ob->parent;
2160                 
2161                 solve_parenting(scene, ob, par, ob->obmat, slowmat, 1);
2162
2163                 if(ob->partype & PARSLOW) {
2164
2165                         fac1= (float)(1.0/(1.0+ fabs(give_timeoffset(ob))));
2166                         fac2= 1.0f-fac1;
2167                         fp1= ob->obmat[0];
2168                         fp2= slowmat[0];
2169                         for(a=0; a<16; a++, fp1++, fp2++) {
2170                                 fp1[0]= fac1*fp1[0] + fac2*fp2[0];
2171                         }
2172                 }
2173                 
2174         }
2175         else {
2176                 object_to_mat4(ob, ob->obmat);
2177         }
2178         
2179         /* solve constraints */
2180         if (ob->constraints.first) {
2181                 bConstraintOb *cob;
2182                 
2183                 cob= constraints_make_evalob(scene, ob, NULL, CONSTRAINT_OBTYPE_OBJECT);
2184                 solve_constraints(&ob->constraints, cob, (float)scene->r.cfra);
2185                 constraints_clear_evalob(cob);
2186         }
2187 }
2188
2189 /* for calculation of the inverse parent transform, only used for editor */
2190 void what_does_parent(Scene *scene, Object *ob, Object *workob)
2191 {
2192         clear_workob(workob);
2193         
2194         unit_m4(workob->obmat);
2195         unit_m4(workob->parentinv);
2196         unit_m4(workob->constinv);
2197         workob->parent= ob->parent;
2198
2199         workob->trackflag= ob->trackflag;
2200         workob->upflag= ob->upflag;
2201         
2202         workob->partype= ob->partype;
2203         workob->par1= ob->par1;
2204         workob->par2= ob->par2;
2205         workob->par3= ob->par3;
2206
2207         workob->constraints.first = ob->constraints.first;
2208         workob->constraints.last = ob->constraints.last;
2209
2210         strcpy(workob->parsubstr, ob->parsubstr); 
2211
2212         where_is_object(scene, workob);
2213 }
2214
2215 BoundBox *unit_boundbox()
2216 {
2217         BoundBox *bb;
2218         float min[3] = {-1.0f,-1.0f,-1.0f}, max[3] = {-1.0f,-1.0f,-1.0f};
2219
2220         bb= MEM_callocN(sizeof(BoundBox), "bb");
2221         boundbox_set_from_min_max(bb, min, max);
2222         
2223         return bb;
2224 }
2225
2226 void boundbox_set_from_min_max(BoundBox *bb, float min[3], float max[3])
2227 {
2228         bb->vec[0][0]=bb->vec[1][0]=bb->vec[2][0]=bb->vec[3][0]= min[0];
2229         bb->vec[4][0]=bb->vec[5][0]=bb->vec[6][0]=bb->vec[7][0]= max[0];
2230         
2231         bb->vec[0][1]=bb->vec[1][1]=bb->vec[4][1]=bb->vec[5][1]= min[1];
2232         bb->vec[2][1]=bb->vec[3][1]=bb->vec[6][1]=bb->vec[7][1]= max[1];
2233
2234         bb->vec[0][2]=bb->vec[3][2]=bb->vec[4][2]=bb->vec[7][2]= min[2];
2235         bb->vec[1][2]=bb->vec[2][2]=bb->vec[5][2]=bb->vec[6][2]= max[2];
2236 }
2237
2238 BoundBox *object_get_boundbox(Object *ob)
2239 {
2240         BoundBox *bb= NULL;
2241         
2242         if(ob->type==OB_MESH) {
2243                 bb = mesh_get_bb(ob);
2244         }
2245         else if (ELEM3(ob->type, OB_CURVE, OB_SURF, OB_FONT)) {
2246                 bb= ob->bb ? ob->bb : ( (Curve *)ob->data )->bb;
2247         }
2248         else if(ob->type==OB_MBALL) {
2249                 bb= ob->bb;
2250         }
2251         return bb;
2252 }
2253
2254 /* used to temporally disable/enable boundbox */
2255 void object_boundbox_flag(Object *ob, int flag, int set)
2256 {
2257         BoundBox *bb= object_get_boundbox(ob);
2258         if(bb) {
2259                 if(set) bb->flag |= flag;
2260                 else bb->flag &= ~flag;
2261         }
2262 }
2263
2264 void object_get_dimensions(Object *ob, float *value)
2265 {
2266         BoundBox *bb = NULL;
2267         
2268         bb= object_get_boundbox(ob);
2269         if (bb) {
2270                 float scale[3];
2271                 
2272                 mat4_to_size( scale,ob->obmat);
2273                 
2274                 value[0] = fabs(scale[0]) * (bb->vec[4][0] - bb->vec[0][0]);
2275                 value[1] = fabs(scale[1]) * (bb->vec[2][1] - bb->vec[0][1]);
2276                 value[2] = fabs(scale[2]) * (bb->vec[1][2] - bb->vec[0][2]);
2277         } else {
2278                 value[0] = value[1] = value[2] = 0.f;
2279         }
2280 }
2281
2282 void object_set_dimensions(Object *ob, const float *value)
2283 {
2284         BoundBox *bb = NULL;
2285         
2286         bb= object_get_boundbox(ob);
2287         if (bb) {
2288                 float scale[3], len[3];
2289                 
2290                 mat4_to_size( scale,ob->obmat);
2291                 
2292                 len[0] = bb->vec[4][0] - bb->vec[0][0];
2293                 len[1] = bb->vec[2][1] - bb->vec[0][1];
2294                 len[2] = bb->vec[1][2] - bb->vec[0][2];
2295                 
2296                 if (len[0] > 0.f) ob->size[0] = value[0] / len[0];
2297                 if (len[1] > 0.f) ob->size[1] = value[1] / len[1];
2298                 if (len[2] > 0.f) ob->size[2] = value[2] / len[2];
2299         }
2300 }
2301
2302 void minmax_object(Object *ob, float *min, float *max)
2303 {
2304         BoundBox bb;
2305         Mesh *me;
2306         Curve *cu;
2307         float vec[3];
2308         int a;
2309         
2310         switch(ob->type) {
2311                 
2312         case OB_CURVE:
2313         case OB_FONT:
2314         case OB_SURF:
2315                 cu= ob->data;
2316                 
2317                 if(cu->bb==NULL) tex_space_curve(cu);
2318                 bb= *(cu->bb);
2319                 
2320                 for(a=0; a<8; a++) {
2321                         mul_m4_v3(ob->obmat, bb.vec[a]);
2322                         DO_MINMAX(bb.vec[a], min, max);
2323                 }
2324                 break;
2325         case OB_ARMATURE:
2326                 if(ob->pose) {
2327                         bPoseChannel *pchan;
2328                         for(pchan= ob->pose->chanbase.first; pchan; pchan= pchan->next) {
2329                                 VECCOPY(vec, pchan->pose_head);
2330                                 mul_m4_v3(ob->obmat, vec);
2331                                 DO_MINMAX(vec, min, max);
2332                                 VECCOPY(vec, pchan->pose_tail);
2333                                 mul_m4_v3(ob->obmat, vec);
2334                                 DO_MINMAX(vec, min, max);
2335                         }
2336                         break;
2337                 }
2338                 /* no break, get_mesh will give NULL and it passes on to default */
2339         case OB_MESH:
2340                 me= get_mesh(ob);
2341                 
2342                 if(me) {
2343                         bb = *mesh_get_bb(ob);
2344                         
2345                         for(a=0; a<8; a++) {
2346                                 mul_m4_v3(ob->obmat, bb.vec[a]);
2347                                 DO_MINMAX(bb.vec[a], min, max);
2348                         }
2349                 }
2350                 if(min[0] < max[0] ) break;
2351                 
2352                 /* else here no break!!!, mesh can be zero sized */
2353                 
2354         default:
2355                 DO_MINMAX(ob->obmat[3], min, max);
2356
2357                 copy_v3_v3(vec, ob->obmat[3]);
2358                 add_v3_v3(vec, ob->size);
2359                 DO_MINMAX(vec, min, max);
2360
2361                 copy_v3_v3(vec, ob->obmat[3]);
2362                 sub_v3_v3(vec, ob->size);
2363                 DO_MINMAX(vec, min, max);
2364                 break;
2365         }
2366 }
2367
2368 int minmax_object_duplis(Scene *scene, Object *ob, float *min, float *max)
2369 {
2370         int ok= 0;
2371         if ((ob->transflag & OB_DUPLI)==0) {
2372                 return ok;
2373         } else {
2374                 ListBase *lb;
2375                 DupliObject *dob;
2376                 
2377                 lb= object_duplilist(scene, ob);
2378                 for(dob= lb->first; dob; dob= dob->next) {
2379                         if(dob->no_draw == 0) {
2380                                 BoundBox *bb= object_get_boundbox(dob->ob);
2381
2382                                 if(bb) {
2383                                         int i;
2384                                         for(i=0; i<8; i++) {
2385                                                 float vec[3];
2386                                                 mul_v3_m4v3(vec, dob->mat, bb->vec[i]);
2387                                                 DO_MINMAX(vec, min, max);
2388                                         }
2389
2390                                         ok= 1;
2391                                 }
2392                         }
2393                 }
2394                 free_object_duplilist(lb);      /* does restore */
2395         }
2396
2397         return ok;
2398 }
2399
2400 /* copied from DNA_object_types.h */
2401 typedef struct ObTfmBack {
2402         float loc[3], dloc[3], orig[3];
2403         float size[3], dsize[3];        /* scale and delta scale */
2404         float rot[3], drot[3];          /* euler rotation */
2405         float quat[4], dquat[4];        /* quaternion rotation */
2406         float rotAxis[3], drotAxis[3];  /* axis angle rotation - axis part */
2407         float rotAngle, drotAngle;      /* axis angle rotation - angle part */
2408         float obmat[4][4];              /* final worldspace matrix with constraints & animsys applied */
2409         float parentinv[4][4]; /* inverse result of parent, so that object doesn't 'stick' to parent */
2410         float constinv[4][4]; /* inverse result of constraints. doesn't include effect of parent or object local transform */
2411         float imat[4][4];       /* inverse matrix of 'obmat' for during render, old game engine, temporally: ipokeys of transform  */
2412 } ObTfmBack;
2413
2414 void *object_tfm_backup(Object *ob)
2415 {
2416         ObTfmBack *obtfm= MEM_mallocN(sizeof(ObTfmBack), "ObTfmBack");
2417         copy_v3_v3(obtfm->loc, ob->loc);
2418         copy_v3_v3(obtfm->dloc, ob->dloc);
2419         copy_v3_v3(obtfm->orig, ob->orig);
2420         copy_v3_v3(obtfm->size, ob->size);
2421         copy_v3_v3(obtfm->dsize, ob->dsize);
2422         copy_v3_v3(obtfm->rot, ob->rot);
2423         copy_v3_v3(obtfm->drot, ob->drot);
2424         copy_qt_qt(obtfm->quat, ob->quat);
2425         copy_qt_qt(obtfm->dquat, ob->dquat);
2426         copy_v3_v3(obtfm->rotAxis, ob->rotAxis);
2427         copy_v3_v3(obtfm->drotAxis, ob->drotAxis);
2428         obtfm->rotAngle= ob->rotAngle;
2429         obtfm->drotAngle= ob->drotAngle;
2430         copy_m4_m4(obtfm->obmat, ob->obmat);
2431         copy_m4_m4(obtfm->parentinv, ob->parentinv);
2432         copy_m4_m4(obtfm->constinv, ob->constinv);
2433         copy_m4_m4(obtfm->imat, ob->imat);
2434
2435         return (void *)obtfm;
2436 }
2437
2438 void object_tfm_restore(Object *ob, void *obtfm_pt)
2439 {
2440         ObTfmBack *obtfm= (ObTfmBack *)obtfm_pt;
2441         copy_v3_v3(ob->loc, obtfm->loc);
2442         copy_v3_v3(ob->dloc, obtfm->dloc);
2443         copy_v3_v3(ob->orig, obtfm->orig);
2444         copy_v3_v3(ob->size, obtfm->size);
2445         copy_v3_v3(ob->dsize, obtfm->dsize);
2446         copy_v3_v3(ob->rot, obtfm->rot);
2447         copy_v3_v3(ob->drot, obtfm->drot);
2448         copy_qt_qt(ob->quat, obtfm->quat);
2449         copy_qt_qt(ob->dquat, obtfm->dquat);
2450         copy_v3_v3(ob->rotAxis, obtfm->rotAxis);
2451         copy_v3_v3(ob->drotAxis, obtfm->drotAxis);
2452         ob->rotAngle= obtfm->rotAngle;
2453         ob->drotAngle= obtfm->drotAngle;
2454         copy_m4_m4(ob->obmat, obtfm->obmat);
2455         copy_m4_m4(ob->parentinv, obtfm->parentinv);
2456         copy_m4_m4(ob->constinv, obtfm->constinv);
2457         copy_m4_m4(ob->imat, obtfm->imat);
2458 }
2459
2460 /* proxy rule: lib_object->proxy_from == the one we borrow from, only set temporal and cleared here */
2461 /*           local_object->proxy      == pointer to library object, saved in files and read */
2462
2463 /* function below is polluted with proxy exceptions, cleanup will follow! */
2464
2465 /* the main object update call, for object matrix, constraints, keys and displist (modifiers) */
2466 /* requires flags to be set! */
2467 void object_handle_update(Scene *scene, Object *ob)
2468 {
2469         if(ob->recalc & OB_RECALC_ALL) {
2470                 /* speed optimization for animation lookups */
2471                 if(ob->pose)
2472                         make_pose_channels_hash(ob->pose);
2473
2474                 if(ob->recalc & OB_RECALC_DATA) {
2475                         if(ob->type==OB_ARMATURE) {
2476                                 /* this happens for reading old files and to match library armatures
2477                                    with poses we do it ahead of where_is_object to ensure animation
2478                                    is evaluated on the rebuilt pose, otherwise we get incorrect poses
2479                                    on file load */
2480                                 if(ob->pose==NULL || (ob->pose->flag & POSE_RECALC))
2481                                         armature_rebuild_pose(ob, ob->data);
2482                         }
2483                 }
2484
2485                 /* XXX new animsys warning: depsgraph tag OB_RECALC_DATA should not skip drivers, 
2486                    which is only in where_is_object now */
2487                 // XXX: should this case be OB_RECALC_OB instead?
2488                 if(ob->recalc & OB_RECALC_ALL) {
2489                         
2490                         if (G.f & G_DEBUG)
2491                                 printf("recalcob %s\n", ob->id.name+2);
2492                         
2493                         /* handle proxy copy for target */
2494                         if(ob->id.lib && ob->proxy_from) {
2495                                 // printf("ob proxy copy, lib ob %s proxy %s\n", ob->id.name, ob->proxy_from->id.name);
2496                                 if(ob->proxy_from->proxy_group) {/* transform proxy into group space */
2497                                         Object *obg= ob->proxy_from->proxy_group;
2498                                         invert_m4_m4(obg->imat, obg->obmat);
2499                                         mul_m4_m4m4(ob->obmat, ob->proxy_from->obmat, obg->imat);
2500                                 }
2501                                 else
2502                                         copy_m4_m4(ob->obmat, ob->proxy_from->obmat);
2503                         }
2504                         else
2505                                 where_is_object(scene, ob);
2506                 }
2507                 
2508                 if(ob->recalc & OB_RECALC_DATA) {
2509                         ID *data_id= (ID *)ob->data;
2510                         AnimData *adt= BKE_animdata_from_id(data_id);
2511                         float ctime= (float)scene->r.cfra; // XXX this is bad...
2512                         ListBase pidlist;
2513                         PTCacheID *pid;
2514                         
2515                         if (G.f & G_DEBUG)
2516                                 printf("recalcdata %s\n", ob->id.name+2);
2517                         
2518                         /* includes all keys and modifiers */
2519                         if(ob->type==OB_MESH) {
2520                                 EditMesh *em = BKE_mesh_get_editmesh(ob->data);
2521                                 
2522                                 /* evaluate drivers */
2523                                 // XXX: should we push this to derivedmesh instead?
2524                                 BKE_animsys_evaluate_animdata(data_id, adt, ctime, ADT_RECALC_DRIVERS);
2525                                 
2526                                         // here was vieweditdatamask? XXX
2527                                 if(em) {
2528                                         makeDerivedMesh(scene, ob, em, CD_MASK_BAREMESH);
2529                                         BKE_mesh_end_editmesh(ob->data, em);
2530                                 } else
2531                                         makeDerivedMesh(scene, ob, NULL, CD_MASK_BAREMESH);
2532                         }
2533                         else if(ob->type==OB_MBALL) {
2534                                 makeDispListMBall(scene, ob);
2535                         } 
2536                         else if(ELEM3(ob->type, OB_CURVE, OB_SURF, OB_FONT)) {
2537                                 makeDispListCurveTypes(scene, ob, 0);
2538                         }
2539                         else if(ELEM(ob->type, OB_CAMERA, OB_LAMP)) {
2540                                 /* evaluate drivers */
2541                                 BKE_animsys_evaluate_animdata(data_id, adt, ctime, ADT_RECALC_DRIVERS);
2542                         }
2543                         else if(ob->type==OB_LATTICE) {
2544                                 lattice_calc_modifiers(scene, ob);
2545                         }
2546                         else if(ob->type==OB_ARMATURE) {
2547                                 /* evaluate drivers */
2548                                 BKE_animsys_evaluate_animdata(data_id, adt, ctime, ADT_RECALC_DRIVERS);
2549                                 
2550                                 if(ob->id.lib && ob->proxy_from) {
2551                                         copy_pose_result(ob->pose, ob->proxy_from->pose);
2552                                         // printf("pose proxy copy, lib ob %s proxy %s\n", ob->id.name, ob->proxy_from->id.name);
2553                                 }
2554                                 else {
2555                                         where_is_pose(scene, ob);
2556                                 }
2557                         }
2558
2559                         if(ob->particlesystem.first) {
2560                                 ParticleSystem *tpsys, *psys;
2561                                 DerivedMesh *dm;
2562                                 ob->transflag &= ~OB_DUPLIPARTS;
2563                                 
2564                                 psys= ob->particlesystem.first;
2565                                 while(psys) {
2566                                         if(psys_check_enabled(ob, psys)) {
2567                                                 /* check use of dupli objects here */
2568                                                 if(psys->part && psys->part->draw_as == PART_DRAW_REND &&
2569                                                         ((psys->part->ren_as == PART_DRAW_OB && psys->part->dup_ob)
2570                                                         || (psys->part->ren_as == PART_DRAW_GR && psys->part->dup_group)))
2571                                                         ob->transflag |= OB_DUPLIPARTS;
2572
2573                                                 particle_system_update(scene, ob, psys);
2574                                                 psys= psys->next;
2575                                         }
2576                                         else if(psys->flag & PSYS_DELETE) {
2577                                                 tpsys=psys->next;
2578                                                 BLI_remlink(&ob->particlesystem, psys);
2579                                                 psys_free(ob,psys);
2580                                                 psys= tpsys;
2581                                         }
2582                                         else
2583                                                 psys= psys->next;
2584                                 }
2585
2586                                 if(G.rendering && ob->transflag & OB_DUPLIPARTS) {
2587                                         /* this is to make sure we get render level duplis in groups:
2588                                          * the derivedmesh must be created before init_render_mesh,
2589                                          * since object_duplilist does dupliparticles before that */
2590                                         dm = mesh_create_derived_render(scene, ob, CD_MASK_BAREMESH|CD_MASK_MTFACE|CD_MASK_MCOL);
2591                                         dm->release(dm);
2592
2593                                         for(psys=ob->particlesystem.first; psys; psys=psys->next)
2594                                                 psys_get_modifier(ob, psys)->flag &= ~eParticleSystemFlag_psys_updated;
2595                                 }
2596                         }
2597
2598                         /* check if quick cache is needed */
2599                         BKE_ptcache_ids_from_object(&pidlist, ob, scene, MAX_DUPLI_RECUR);
2600
2601                         for(pid=pidlist.first; pid; pid=pid->next) {
2602                                 if((pid->cache->flag & PTCACHE_BAKED)
2603                                         || (pid->cache->flag & PTCACHE_QUICK_CACHE)==0)
2604                                         continue;
2605
2606                                 if(pid->cache->flag & PTCACHE_OUTDATED || (pid->cache->flag & PTCACHE_SIMULATION_VALID)==0) {
2607                                         scene->physics_settings.quick_cache_step =
2608                                                 scene->physics_settings.quick_cache_step ?
2609                                                 MIN2(scene->physics_settings.quick_cache_step, pid->cache->step) :
2610                                                 pid->cache->step;
2611                                 }
2612                         }
2613
2614                         BLI_freelistN(&pidlist);
2615                 }
2616
2617                 /* the no-group proxy case, we call update */
2618                 if(ob->proxy && ob->proxy_group==NULL) {
2619                         /* set pointer in library proxy target, for copying, but restore it */
2620                         ob->proxy->proxy_from= ob;
2621                         // printf("call update, lib ob %s proxy %s\n", ob->proxy->id.name, ob->id.name);
2622                         object_handle_update(scene, ob->proxy);
2623                 }
2624         
2625                 ob->recalc &= ~OB_RECALC_ALL;
2626         }
2627
2628         /* the case when this is a group proxy, object_update is called in group.c */
2629         if(ob->proxy) {
2630                 ob->proxy->proxy_from= ob;
2631                 // printf("set proxy pointer for later group stuff %s\n", ob->id.name);
2632         }
2633 }
2634
2635 float give_timeoffset(Object *ob) {
2636         if ((ob->ipoflag & OB_OFFS_PARENTADD) && ob->parent) {
2637                 return ob->sf + give_timeoffset(ob->parent);
2638         } else {
2639                 return ob->sf;
2640         }
2641 }
2642
2643 int give_obdata_texspace(Object *ob, short **texflag, float **loc, float **size, float **rot) {
2644         
2645         if (ob->data==NULL)
2646                 return 0;
2647         
2648         switch (GS(((ID *)ob->data)->name)) {
2649         case ID_ME:
2650         {
2651                 Mesh *me= ob->data;
2652                 if (texflag)    *texflag = &me->texflag;
2653                 if (loc)                *loc = me->loc;
2654                 if (size)               *size = me->size;
2655                 if (rot)                *rot = me->rot;
2656                 break;
2657         }
2658         case ID_CU:
2659         {
2660                 Curve *cu= ob->data;
2661                 if (texflag)    *texflag = &cu->texflag;
2662                 if (loc)                *loc = cu->loc;
2663                 if (size)               *size = cu->size;
2664                 if (rot)                *rot = cu->rot;
2665                 break;
2666         }
2667         case ID_MB:
2668         {
2669                 MetaBall *mb= ob->data;
2670                 if (texflag)    *texflag = &mb->texflag;
2671                 if (loc)                *loc = mb->loc;
2672                 if (size)               *size = mb->size;
2673                 if (rot)                *rot = mb->rot;
2674                 break;
2675         }
2676         default:
2677                 return 0;
2678         }
2679         return 1;
2680 }
2681
2682 /*
2683  * Test a bounding box for ray intersection
2684  * assumes the ray is already local to the boundbox space
2685  */
2686 int ray_hit_boundbox(struct BoundBox *bb, float ray_start[3], float ray_normal[3])
2687 {
2688         static int triangle_indexes[12][3] = {{0, 1, 2}, {0, 2, 3},
2689                                                                                   {3, 2, 6}, {3, 6, 7},
2690                                                                                   {1, 2, 6}, {1, 6, 5}, 
2691                                                                                   {5, 6, 7}, {4, 5, 7},
2692                                                                                   {0, 3, 7}, {0, 4, 7},
2693                                                                                   {0, 1, 5}, {0, 4, 5}};
2694         int result = 0;
2695         int i;
2696         
2697         for (i = 0; i < 12 && result == 0; i++)
2698         {
2699                 float lambda;
2700                 int v1, v2, v3;
2701                 v1 = triangle_indexes[i][0];
2702                 v2 = triangle_indexes[i][1];
2703                 v3 = triangle_indexes[i][2];
2704                 result = isect_ray_tri_v3(ray_start, ray_normal, bb->vec[v1], bb->vec[v2], bb->vec[v3], &lambda, NULL);
2705         }
2706         
2707         return result;
2708 }
2709
2710 static int pc_cmp(void *a, void *b)
2711 {
2712         LinkData *ad = a, *bd = b;
2713         if(GET_INT_FROM_POINTER(ad->data) > GET_INT_FROM_POINTER(bd->data))
2714                 return 1;
2715         else return 0;
2716 }
2717
2718 int object_insert_ptcache(Object *ob) 
2719 {
2720         LinkData *link = NULL;
2721         int i = 0;
2722
2723         BLI_sortlist(&ob->pc_ids, pc_cmp);
2724
2725         for(link=ob->pc_ids.first, i = 0; link; link=link->next, i++) 
2726         {
2727                 int index = GET_INT_FROM_POINTER(link->data);
2728
2729                 if(i < index)
2730                         break;
2731         }
2732
2733         link = MEM_callocN(sizeof(LinkData), "PCLink");
2734         link->data = SET_INT_IN_POINTER(i);
2735         BLI_addtail(&ob->pc_ids, link);
2736
2737         return i;
2738 }
2739
2740 /* 'lens' may be set for envmap only */
2741 void object_camera_matrix(
2742                 RenderData *rd, Object *camera, int winx, int winy, short field_second,
2743                 float winmat[][4], rctf *viewplane, float *clipsta, float *clipend, float *lens, float *ycor,
2744                 float *viewdx, float *viewdy
2745 ) {
2746         Camera *cam=NULL;
2747         float pixsize;
2748         float shiftx=0.0, shifty=0.0, winside, viewfac;
2749
2750         rd->mode &= ~(R_ORTHO|R_PANORAMA);
2751
2752         /* question mark */
2753         (*ycor)= rd->yasp / rd->xasp;
2754         if(rd->mode & R_FIELDS)
2755                 (*ycor) *= 2.0f;
2756
2757         if(camera->type==OB_CAMERA) {
2758                 cam= camera->data;
2759
2760                 if(cam->type==CAM_ORTHO) rd->mode |= R_ORTHO;
2761                 if(cam->flag & CAM_PANORAMA) rd->mode |= R_PANORAMA;
2762
2763                 /* solve this too... all time depending stuff is in convertblender.c?
2764                  * Need to update the camera early because it's used for projection matrices
2765                  * and other stuff BEFORE the animation update loop is done
2766                  * */
2767 #if 0 // XXX old animation system
2768                 if(cam->ipo) {
2769                         calc_ipo(cam->ipo, frame_to_float(re->scene, re->r.cfra));
2770                         execute_ipo(&cam->id, cam->ipo);
2771                 }
2772 #endif // XXX old animation system
2773                 shiftx=cam->shiftx;
2774                 shifty=cam->shifty;
2775                 (*lens)= cam->lens;
2776                 (*clipsta)= cam->clipsta;
2777                 (*clipend)= cam->clipend;
2778         }
2779         else if(camera->type==OB_LAMP) {
2780                 Lamp *la= camera->data;
2781                 float fac= cos( M_PI*la->spotsize/360.0 );
2782                 float phi= acos(fac);
2783
2784                 (*lens)= 16.0*fac/sin(phi);
2785                 if((*lens)==0.0f)
2786                         (*lens)= 35.0;
2787                 (*clipsta)= la->clipsta;
2788                 (*clipend)= la->clipend;
2789         }
2790         else {  /* envmap exception... */;
2791                 if((*lens)==0.0f)
2792                         (*lens)= 16.0;
2793
2794                 if((*clipsta)==0.0f || (*clipend)==0.0f) {
2795                         (*clipsta)= 0.1f;
2796                         (*clipend)= 1000.0f;
2797                 }
2798         }
2799
2800         /* ortho only with camera available */
2801         if(cam && rd->mode & R_ORTHO) {
2802                 if(rd->xasp*winx >= rd->yasp*winy) {
2803                         viewfac= winx;
2804                 }
2805                 else {
2806                         viewfac= (*ycor) * winy;
2807                 }
2808                 /* ortho_scale == 1.0 means exact 1 to 1 mapping */
2809                 pixsize= cam->ortho_scale/viewfac;
2810         }
2811         else {
2812                 if(rd->xasp*winx >= rd->yasp*winy)      viewfac= ((*lens) * winx)/32.0;
2813                 else                                                            viewfac= (*ycor) * ((*lens) * winy)/32.0;
2814                 pixsize= (*clipsta) / viewfac;
2815         }
2816
2817         /* viewplane fully centered, zbuffer fills in jittered between -.5 and +.5 */
2818         winside= MAX2(winx, winy);
2819         viewplane->xmin= -0.5f*(float)winx + shiftx*winside;
2820         viewplane->ymin= -0.5f*(*ycor)*(float)winy + shifty*winside;
2821         viewplane->xmax=  0.5f*(float)winx + shiftx*winside;
2822         viewplane->ymax=  0.5f*(*ycor)*(float)winy + shifty*winside;
2823
2824         if(field_second) {
2825                 if(rd->mode & R_ODDFIELD) {
2826                         viewplane->ymin-= 0.5 * (*ycor);
2827                         viewplane->ymax-= 0.5 * (*ycor);
2828                 }
2829                 else {
2830                         viewplane->ymin+= 0.5 * (*ycor);
2831                         viewplane->ymax+= 0.5 * (*ycor);
2832                 }
2833         }
2834         /* the window matrix is used for clipping, and not changed during OSA steps */
2835         /* using an offset of +0.5 here would give clip errors on edges */
2836         viewplane->xmin *= pixsize;
2837         viewplane->xmax *= pixsize;
2838         viewplane->ymin *= pixsize;
2839         viewplane->ymax *= pixsize;
2840
2841         (*viewdx)= pixsize;
2842         (*viewdy)= (*ycor) * pixsize;
2843
2844         if(rd->mode & R_ORTHO)
2845                 orthographic_m4(winmat, viewplane->xmin, viewplane->xmax, viewplane->ymin, viewplane->ymax, *clipsta, *clipend);
2846         else
2847                 perspective_m4(winmat, viewplane->xmin, viewplane->xmax, viewplane->ymin, viewplane->ymax, *clipsta, *clipend);
2848
2849 }
2850
2851 #if 0
2852 static int pc_findindex(ListBase *listbase, int index)
2853 {
2854         LinkData *link= NULL;
2855         int number= 0;
2856         
2857         if (listbase == NULL) return -1;
2858         
2859         link= listbase->first;
2860         while (link) {
2861                 if ((int)link->data == index)
2862                         return number;
2863                 
2864                 number++;
2865                 link= link->next;
2866         }
2867         
2868         return -1;
2869 }
2870
2871 void object_delete_ptcache(Object *ob, int index) 
2872 {
2873         int list_index = pc_findindex(&ob->pc_ids, index);
2874         LinkData *link = BLI_findlink(&ob->pc_ids, list_index);
2875         BLI_freelinkN(&ob->pc_ids, link);
2876 }
2877 #endif
2878
2879 /* shape key utility function */
2880
2881 /************************* Mesh ************************/
2882 static KeyBlock *insert_meshkey(Scene *scene, Object *ob, char *name, int from_mix)
2883 {
2884         Mesh *me= ob->data;
2885         Key *key= me->key;
2886         KeyBlock *kb;
2887         int newkey= 0;
2888
2889         if(key == NULL) {
2890                 key= me->key= add_key((ID *)me);
2891                 key->type= KEY_RELATIVE;
2892                 newkey= 1;
2893         }
2894
2895         if(newkey || from_mix==FALSE) {
2896                 /* create from mesh */
2897                 kb= add_keyblock(key, name);
2898                 mesh_to_key(me, kb);
2899         }
2900         else {
2901                 /* copy from current values */
2902                 float *data= do_ob_key(scene, ob);
2903
2904                 /* create new block with prepared data */
2905                 kb= add_keyblock(key, name);
2906                 kb->data= data;
2907                 kb->totelem= me->totvert;
2908         }
2909
2910         return kb;
2911 }
2912 /************************* Lattice ************************/
2913 static KeyBlock *insert_lattkey(Scene *scene, Object *ob, char *name, int from_mix)
2914 {
2915         Lattice *lt= ob->data;
2916         Key *key= lt->key;
2917         KeyBlock *kb;
2918         int newkey= 0;
2919
2920         if(key==NULL) {
2921                 key= lt->key= add_key( (ID *)lt);
2922                 key->type= KEY_RELATIVE;
2923                 newkey= 1;
2924         }
2925
2926         if(newkey || from_mix==FALSE) {
2927                 kb= add_keyblock(key, name);
2928
2929                 /* create from lattice */
2930                 latt_to_key(lt, kb);
2931         }
2932         else {
2933                 /* copy from current values */
2934                 float *data= do_ob_key(scene, ob);
2935
2936                 /* create new block with prepared data */
2937                 kb= add_keyblock(key, name);
2938                 kb->totelem= lt->pntsu*lt->pntsv*lt->pntsw;
2939                 kb->data= data;
2940         }
2941
2942         return kb;
2943 }
2944 /************************* Curve ************************/
2945 static KeyBlock *insert_curvekey(Scene *scene, Object *ob, char *name, int from_mix)
2946 {
2947         Curve *cu= ob->data;
2948         Key *key= cu->key;
2949         KeyBlock *kb;
2950         ListBase *lb= (cu->editnurb)? cu->editnurb: &cu->nurb;
2951         int newkey= 0;
2952
2953         if(key==NULL) {
2954                 key= cu->key= add_key( (ID *)cu);
2955                 key->type = KEY_RELATIVE;
2956                 newkey= 1;
2957         }
2958
2959         if(newkey || from_mix==FALSE) {
2960                 /* create from curve */
2961                 kb= add_keyblock(key, name);
2962                 curve_to_key(cu, kb, lb);
2963         }
2964         else {
2965                 /* copy from current values */
2966                 float *data= do_ob_key(scene, ob);
2967
2968                 /* create new block with prepared data */
2969                 kb= add_keyblock(key, name);
2970                 kb->totelem= count_curveverts(lb);
2971                 kb->data= data;
2972         }
2973
2974         return kb;
2975 }
2976
2977 KeyBlock *object_insert_shape_key(Scene *scene, Object *ob, char *name, int from_mix)
2978 {
2979         if(ob->type==OB_MESH)                                    return insert_meshkey(scene, ob, name, from_mix);
2980         else if ELEM(ob->type, OB_CURVE, OB_SURF)return insert_curvekey(scene, ob, name, from_mix);
2981         else if(ob->type==OB_LATTICE)                    return insert_lattkey(scene, ob, name, from_mix);
2982         else                                                                     return NULL;
2983 }
2984