svn merge -r 16320:16369 https://svn.blender.org/svnroot/bf-blender/trunk/blender
[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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
21  *
22  * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
23  * All rights reserved.
24  *
25  * The Original Code is: all of this file.
26  *
27  * Contributor(s): none yet.
28  *
29  * ***** END GPL LICENSE BLOCK *****
30  */
31
32 #include <string.h>
33 #include <math.h>
34 #include <stdio.h>                      
35
36 #ifdef HAVE_CONFIG_H
37 #include <config.h>
38 #endif
39
40 #include "MEM_guardedalloc.h"
41
42 #include "DNA_action_types.h"
43 #include "DNA_armature_types.h"
44 #include "DNA_camera_types.h"
45 #include "DNA_constraint_types.h"
46 #include "DNA_curve_types.h"
47 #include "DNA_group_types.h"
48 #include "DNA_ipo_types.h"
49 #include "DNA_lamp_types.h"
50 #include "DNA_lattice_types.h"
51 #include "DNA_material_types.h"
52 #include "DNA_mesh_types.h"
53 #include "DNA_meta_types.h"
54 #include "DNA_curve_types.h"
55 #include "DNA_meshdata_types.h"
56 #include "DNA_modifier_types.h"
57 #include "DNA_nla_types.h"
58 #include "DNA_object_types.h"
59 #include "DNA_object_force.h"
60 #include "DNA_object_fluidsim.h"
61 #include "DNA_oops_types.h"
62 #include "DNA_particle_types.h"
63 #include "DNA_scene_types.h"
64 #include "DNA_screen_types.h"
65 #include "DNA_space_types.h"
66 #include "DNA_texture_types.h"
67 #include "DNA_userdef_types.h"
68 #include "DNA_view3d_types.h"
69 #include "DNA_world_types.h"
70
71 #include "BKE_armature.h"
72 #include "BKE_action.h"
73 #include "BKE_colortools.h"
74 #include "BKE_deform.h"
75 #include "BKE_DerivedMesh.h"
76 #include "BKE_nla.h"
77
78 #include "BLI_blenlib.h"
79 #include "BLI_arithb.h"
80 #include "BLI_editVert.h"
81
82 #include "BKE_utildefines.h"
83 #include "BKE_bad_level_calls.h"
84
85 #include "BKE_main.h"
86 #include "BKE_global.h"
87
88 #include "BKE_anim.h"
89 #include "BKE_blender.h"
90 #include "BKE_constraint.h"
91 #include "BKE_curve.h"
92 #include "BKE_displist.h"
93 #include "BKE_group.h"
94 #include "BKE_icons.h"
95 #include "BKE_ipo.h"
96 #include "BKE_key.h"
97 #include "BKE_lattice.h"
98 #include "BKE_library.h"
99 #include "BKE_mesh.h"
100 #include "BKE_mball.h"
101 #include "BKE_modifier.h"
102 #include "BKE_object.h"
103 #include "BKE_particle.h"
104 #include "BKE_pointcache.h"
105 #include "BKE_property.h"
106 #include "BKE_sca.h"
107 #include "BKE_scene.h"
108 #include "BKE_screen.h"
109 #include "BKE_softbody.h"
110
111 #include "LBM_fluidsim.h"
112
113 #include "BPY_extern.h"
114
115 #include "GPU_material.h"
116
117 #include "blendef.h"
118
119 /* Local function protos */
120 static void solve_parenting (Object *ob, Object *par, float obmat[][4], float slowmat[][4], int simul);
121
122 float originmat[3][3];  /* after where_is_object(), can be used in other functions (bad!) */
123 Object workob;
124
125 void clear_workob(void)
126 {
127         memset(&workob, 0, sizeof(Object));
128         
129         workob.size[0]= workob.size[1]= workob.size[2]= 1.0;
130         
131 }
132
133 void copy_baseflags()
134 {
135         Base *base= G.scene->base.first;
136         
137         while(base) {
138                 base->object->flag= base->flag;
139                 base= base->next;
140         }
141 }
142
143 void copy_objectflags()
144 {
145         Base *base= G.scene->base.first;
146         
147         while(base) {
148                 base->flag= base->object->flag;
149                 base= base->next;
150         }
151 }
152
153 void update_base_layer(Object *ob)
154 {
155         Base *base= G.scene->base.first;
156
157         while (base) {
158                 if (base->object == ob) base->lay= ob->lay;
159                 base= base->next;
160         }
161 }
162
163 void object_free_particlesystems(Object *ob)
164 {
165         while(ob->particlesystem.first){
166                 ParticleSystem *psys = ob->particlesystem.first;
167
168                 BLI_remlink(&ob->particlesystem,psys);
169
170                 psys_free(ob,psys);
171         }
172 }
173
174 void object_free_softbody(Object *ob)
175 {
176         if(ob->soft) {
177                 sbFree(ob->soft);
178                 ob->soft= NULL;
179         }
180 }
181
182 void object_free_modifiers(Object *ob)
183 {
184         while (ob->modifiers.first) {
185                 ModifierData *md = ob->modifiers.first;
186
187                 BLI_remlink(&ob->modifiers, md);
188
189                 modifier_free(md);
190         }
191
192         /* particle modifiers were freed, so free the particlesystems as well */
193         object_free_particlesystems(ob);
194
195         /* same for softbody */
196         object_free_softbody(ob);
197 }
198
199 /* here we will collect all local displist stuff */
200 /* also (ab)used in depsgraph */
201 void object_free_display(Object *ob)
202 {
203         if(ob->derivedDeform) {
204                 ob->derivedDeform->needsFree = 1;
205                 ob->derivedDeform->release(ob->derivedDeform);
206                 ob->derivedDeform= NULL;
207         }
208         if(ob->derivedFinal) {
209                 ob->derivedFinal->needsFree = 1;
210                 ob->derivedFinal->release(ob->derivedFinal);
211                 ob->derivedFinal= NULL;
212         }
213         
214         freedisplist(&ob->disp);
215 }
216
217 /* do not free object itself */
218 void free_object(Object *ob)
219 {
220         int a;
221         
222         object_free_display(ob);
223         
224         /* disconnect specific data */
225         if(ob->data) {
226                 ID *id= ob->data;
227                 id->us--;
228                 if(id->us==0) {
229                         if(ob->type==OB_MESH) unlink_mesh(ob->data);
230                         else if(ob->type==OB_CURVE) unlink_curve(ob->data);
231                         else if(ob->type==OB_MBALL) unlink_mball(ob->data);
232                 }
233                 ob->data= 0;
234         }
235         
236         for(a=0; a<ob->totcol; a++) {
237                 if(ob->mat[a]) ob->mat[a]->id.us--;
238         }
239         if(ob->mat) MEM_freeN(ob->mat);
240         ob->mat= 0;
241         if(ob->bb) MEM_freeN(ob->bb); 
242         ob->bb= 0;
243         if(ob->path) free_path(ob->path); 
244         ob->path= 0;
245         if(ob->ipo) ob->ipo->id.us--;
246         if(ob->action) ob->action->id.us--;
247         if(ob->poselib) ob->poselib->id.us--;
248         if(ob->dup_group) ob->dup_group->id.us--;
249         if(ob->defbase.first)
250                 BLI_freelistN(&ob->defbase);
251         if(ob->pose)
252                 free_pose(ob->pose);
253         free_properties(&ob->prop);
254         object_free_modifiers(ob);
255         
256         free_sensors(&ob->sensors);
257         free_controllers(&ob->controllers);
258         free_actuators(&ob->actuators);
259         
260         free_constraints(&ob->constraints);
261         free_constraint_channels(&ob->constraintChannels);
262         free_nlastrips(&ob->nlastrips);
263         
264         BPY_free_scriptlink(&ob->scriptlink);
265         
266         if(ob->pd){
267                 if(ob->pd->tex)
268                         ob->pd->tex->id.us--;
269                 MEM_freeN(ob->pd);
270         }
271         if(ob->soft) sbFree(ob->soft);
272         if(ob->gpulamp.first) GPU_lamp_free(ob);
273 }
274
275 static void unlink_object__unlinkModifierLinks(void *userData, Object *ob, Object **obpoin)
276 {
277         Object *unlinkOb = userData;
278
279         if (*obpoin==unlinkOb) {
280                 *obpoin = NULL;
281                 ob->recalc |= OB_RECALC;
282         }
283 }
284 void unlink_object(Object *ob)
285 {
286         Object *obt;
287         Material *mat;
288         World *wrld;
289         bScreen *sc;
290         Scene *sce;
291         Curve *cu;
292         Tex *tex;
293         Ipo *ipo;
294         Group *group;
295         Camera *camera;
296         bConstraint *con;
297         bActionStrip *strip;
298         ModifierData *md;
299         int a;
300         
301         unlink_controllers(&ob->controllers);
302         unlink_actuators(&ob->actuators);
303         
304         /* check all objects: parents en bevels and fields, also from libraries */
305         obt= G.main->object.first;
306         while(obt) {
307                 if(obt->proxy==ob)
308                         obt->proxy= NULL;
309                 if(obt->proxy_from==ob) {
310                         obt->proxy_from= NULL;
311                         obt->recalc |= OB_RECALC_OB;
312                 }
313                 if(obt->proxy_group==ob)
314                         obt->proxy_group= NULL;
315                 
316                 if(obt->parent==ob) {
317                         obt->parent= NULL;
318                         obt->recalc |= OB_RECALC;
319                 }
320                 
321                 if(obt->track==ob) {
322                         obt->track= NULL;
323                         obt->recalc |= OB_RECALC_OB;
324                 }
325                 
326                 modifiers_foreachObjectLink(obt, unlink_object__unlinkModifierLinks, ob);
327                 
328                 if ELEM(obt->type, OB_CURVE, OB_FONT) {
329                         cu= obt->data;
330
331                         if(cu->bevobj==ob) {
332                                 cu->bevobj= NULL;
333                                 obt->recalc |= OB_RECALC;
334                         }
335                         if(cu->taperobj==ob) {
336                                 cu->taperobj= NULL;
337                                 obt->recalc |= OB_RECALC;
338                         }
339                         if(cu->textoncurve==ob) {
340                                 cu->textoncurve= NULL;
341                                 obt->recalc |= OB_RECALC;
342                         }
343                 }
344                 else if(obt->type==OB_ARMATURE && obt->pose) {
345                         bPoseChannel *pchan;
346                         for(pchan= obt->pose->chanbase.first; pchan; pchan= pchan->next) {
347                                 for (con = pchan->constraints.first; con; con=con->next) {
348                                         bConstraintTypeInfo *cti= constraint_get_typeinfo(con);
349                                         ListBase targets = {NULL, NULL};
350                                         bConstraintTarget *ct;
351                                         
352                                         if (cti && cti->get_constraint_targets) {
353                                                 cti->get_constraint_targets(con, &targets);
354                                                 
355                                                 for (ct= targets.first; ct; ct= ct->next) {
356                                                         if (ct->tar == ob) {
357                                                                 ct->tar = NULL;
358                                                                 strcpy(ct->subtarget, "");
359                                                                 obt->recalc |= OB_RECALC_DATA;
360                                                         }
361                                                 }
362                                                 
363                                                 if (cti->flush_constraint_targets)
364                                                         cti->flush_constraint_targets(con, &targets, 0);
365                                         }
366                                 }
367                                 if(pchan->custom==ob)
368                                         pchan->custom= NULL;
369                         }
370                 }
371                 
372                 sca_remove_ob_poin(obt, ob);
373                 
374                 for (con = obt->constraints.first; con; con=con->next) {
375                         bConstraintTypeInfo *cti= constraint_get_typeinfo(con);
376                         ListBase targets = {NULL, NULL};
377                         bConstraintTarget *ct;
378                         
379                         if (cti && cti->get_constraint_targets) {
380                                 cti->get_constraint_targets(con, &targets);
381                                 
382                                 for (ct= targets.first; ct; ct= ct->next) {
383                                         if (ct->tar == ob) {
384                                                 ct->tar = NULL;
385                                                 strcpy(ct->subtarget, "");
386                                                 obt->recalc |= OB_RECALC_DATA;
387                                         }
388                                 }
389                                 
390                                 if (cti->flush_constraint_targets)
391                                         cti->flush_constraint_targets(con, &targets, 0);
392                         }
393                 }
394                 
395                 /* object is deflector or field */
396                 if(ob->pd) {
397                         if(obt->soft)
398                                 obt->recalc |= OB_RECALC_DATA;
399
400                         /* cloth */
401                         for(md=obt->modifiers.first; md; md=md->next)
402                                 if(md->type == eModifierType_Cloth)
403                                         obt->recalc |= OB_RECALC_DATA;
404                 }
405                 
406                 /* strips */
407                 for(strip= obt->nlastrips.first; strip; strip= strip->next) {
408                         if(strip->object==ob)
409                                 strip->object= NULL;
410                         
411                         if(strip->modifiers.first) {
412                                 bActionModifier *amod;
413                                 for(amod= strip->modifiers.first; amod; amod= amod->next)
414                                         if(amod->ob==ob)
415                                                 amod->ob= NULL;
416                         }
417                 }
418
419                 /* particle systems */
420                 if(obt->particlesystem.first) {
421                         ParticleSystem *tpsys= obt->particlesystem.first;
422                         for(; tpsys; tpsys=tpsys->next) {
423                                 if(tpsys->keyed_ob==ob) {
424                                         ParticleSystem *psys= BLI_findlink(&ob->particlesystem,tpsys->keyed_psys-1);
425
426                                         if(psys && psys->keyed_ob) {
427                                                 tpsys->keyed_ob= psys->keyed_ob;
428                                                 tpsys->keyed_psys= psys->keyed_psys;
429                                         }
430                                         else
431                                                 tpsys->keyed_ob= NULL;
432
433                                         obt->recalc |= OB_RECALC_DATA;
434                                 }
435
436                                 if(tpsys->target_ob==ob) {
437                                         tpsys->target_ob= NULL;
438                                         obt->recalc |= OB_RECALC_DATA;
439                                 }
440
441                                 if(tpsys->part->dup_ob==ob)
442                                         tpsys->part->dup_ob= NULL;
443
444                                 if(tpsys->part->flag&PART_STICKY) {
445                                         ParticleData *pa;
446                                         int p;
447
448                                         for(p=0,pa=tpsys->particles; p<tpsys->totpart; p++,pa++) {
449                                                 if(pa->stick_ob==ob) {
450                                                         pa->stick_ob= 0;
451                                                         pa->flag &= ~PARS_STICKY;
452                                                 }
453                                         }
454                                 }
455                         }
456                         if(ob->pd)
457                                 obt->recalc |= OB_RECALC_DATA;
458                 }
459
460                 obt= obt->id.next;
461         }
462         
463         /* materials */
464         mat= G.main->mat.first;
465         while(mat) {
466         
467                 for(a=0; a<MAX_MTEX; a++) {
468                         if(mat->mtex[a] && ob==mat->mtex[a]->object) {
469                                 /* actually, test for lib here... to do */
470                                 mat->mtex[a]->object= NULL;
471                         }
472                 }
473
474                 mat= mat->id.next;
475         }
476         
477         /* textures */
478         tex= G.main->tex.first;
479         while(tex) {
480                 if(tex->env) {
481                         if(tex->env->object == ob) tex->env->object= NULL;
482                 }
483                 tex= tex->id.next;
484         }
485         
486         /* mballs */
487         if(ob->type==OB_MBALL) {
488                 obt= find_basis_mball(ob);
489                 if(obt) freedisplist(&obt->disp);
490         }
491         
492         /* worlds */
493         wrld= G.main->world.first;
494         while(wrld) {
495                 if(wrld->id.lib==NULL) {
496                         for(a=0; a<MAX_MTEX; a++) {
497                                 if(wrld->mtex[a] && ob==wrld->mtex[a]->object)
498                                         wrld->mtex[a]->object= NULL;
499                         }
500                 }
501                 
502                 wrld= wrld->id.next;
503         }
504                 
505         /* scenes */
506         sce= G.main->scene.first;
507         while(sce) {
508                 if(sce->id.lib==NULL) {
509                         if(sce->camera==ob) sce->camera= NULL;
510                 }
511                 sce= sce->id.next;
512         }
513         /* ipos */
514         ipo= G.main->ipo.first;
515         while(ipo) {
516                 if(ipo->id.lib==NULL) {
517                         IpoCurve *icu;
518                         for(icu= ipo->curve.first; icu; icu= icu->next) {
519                                 if(icu->driver && icu->driver->ob==ob)
520                                         icu->driver->ob= NULL;
521                         }
522                 }
523                 ipo= ipo->id.next;
524         }
525         
526         /* screens */
527         sc= G.main->screen.first;
528         while(sc) {
529                 ScrArea *sa= sc->areabase.first;
530                 while(sa) {
531                         SpaceLink *sl;
532
533                         for (sl= sa->spacedata.first; sl; sl= sl->next) {
534                                 if(sl->spacetype==SPACE_VIEW3D) {
535                                         View3D *v3d= (View3D*) sl;
536
537                                         if(v3d->camera==ob) {
538                                                 v3d->camera= NULL;
539                                                 if(v3d->persp==V3D_CAMOB) v3d->persp= V3D_PERSP;
540                                         }
541                                         if(v3d->localvd && v3d->localvd->camera==ob ) {
542                                                 v3d->localvd->camera= NULL;
543                                                 if(v3d->localvd->persp==V3D_CAMOB) v3d->localvd->persp= V3D_PERSP;
544                                         }
545                                 }
546                                 else if(sl->spacetype==SPACE_IPO) {
547                                         SpaceIpo *sipo= (SpaceIpo *)sl;
548                                         if(sipo->from == (ID *)ob) sipo->from= NULL;
549                                 }
550                                 else if(sl->spacetype==SPACE_OOPS) {
551                                         SpaceOops *so= (SpaceOops *)sl;
552                                         Oops *oops;
553
554                                         oops= so->oops.first;
555                                         while(oops) {
556                                                 if(oops->id==(ID *)ob) oops->id= NULL;
557                                                 oops= oops->next;
558                                         }
559                                         if(so->treestore) {
560                                                 TreeStoreElem *tselem= so->treestore->data;
561                                                 int a;
562                                                 for(a=0; a<so->treestore->usedelem; a++, tselem++) {
563                                                         if(tselem->id==(ID *)ob) tselem->id= NULL;
564                                                 }
565                                         }
566                                         so->lockpoin= NULL;
567                                 }
568                         }
569
570                         sa= sa->next;
571                 }
572                 sc= sc->id.next;
573         }
574
575         /* groups */
576         group= G.main->group.first;
577         while(group) {
578                 rem_from_group(group, ob);
579                 group= group->id.next;
580         }
581         
582         /* cameras */
583         camera= G.main->camera.first;
584         while(camera) {
585                 if (camera->dof_ob==ob) {
586                         camera->dof_ob = NULL;
587                 }
588                 camera= camera->id.next;
589         }
590 }
591
592 int exist_object(Object *obtest)
593 {
594         Object *ob;
595         
596         if(obtest==NULL) return 0;
597         
598         ob= G.main->object.first;
599         while(ob) {
600                 if(ob==obtest) return 1;
601                 ob= ob->id.next;
602         }
603         return 0;
604 }
605
606 void *add_camera(char *name)
607 {
608         Camera *cam;
609         
610         cam=  alloc_libblock(&G.main->camera, ID_CA, name);
611
612         cam->lens= 35.0f;
613         cam->angle= 49.14f;
614         cam->clipsta= 0.1f;
615         cam->clipend= 100.0f;
616         cam->drawsize= 0.5f;
617         cam->ortho_scale= 6.0;
618         cam->flag |= CAM_SHOWTITLESAFE;
619         cam->passepartalpha = 0.2f;
620         
621         return cam;
622 }
623
624 Camera *copy_camera(Camera *cam)
625 {
626         Camera *camn;
627         
628         camn= copy_libblock(cam);
629         id_us_plus((ID *)camn->ipo);
630
631         BPY_copy_scriptlink(&camn->scriptlink);
632         
633         return camn;
634 }
635
636
637
638 void make_local_camera(Camera *cam)
639 {
640         Object *ob;
641         Camera *camn;
642         int local=0, lib=0;
643
644         /* - only lib users: do nothing
645             * - only local users: set flag
646             * - mixed: make copy
647             */
648         
649         if(cam->id.lib==0) return;
650         if(cam->id.us==1) {
651                 cam->id.lib= 0;
652                 cam->id.flag= LIB_LOCAL;
653                 new_id(0, (ID *)cam, 0);
654                 return;
655         }
656         
657         ob= G.main->object.first;
658         while(ob) {
659                 if(ob->data==cam) {
660                         if(ob->id.lib) lib= 1;
661                         else local= 1;
662                 }
663                 ob= ob->id.next;
664         }
665         
666         if(local && lib==0) {
667                 cam->id.lib= 0;
668                 cam->id.flag= LIB_LOCAL;
669                 new_id(0, (ID *)cam, 0);
670         }
671         else if(local && lib) {
672                 camn= copy_camera(cam);
673                 camn->id.us= 0;
674                 
675                 ob= G.main->object.first;
676                 while(ob) {
677                         if(ob->data==cam) {
678                                 
679                                 if(ob->id.lib==0) {
680                                         ob->data= camn;
681                                         camn->id.us++;
682                                         cam->id.us--;
683                                 }
684                         }
685                         ob= ob->id.next;
686                 }
687         }
688 }
689
690 /* get the camera's dof value, takes the dof object into account */
691 float dof_camera(Object *ob)
692 {
693         Camera *cam = (Camera *)ob->data; 
694         if (ob->type != OB_CAMERA)
695                 return 0.0;
696         if (cam->dof_ob) {      
697                 /* too simple, better to return the distance on the view axis only
698                  * return VecLenf(ob->obmat[3], cam->dof_ob->obmat[3]); */
699                 
700                 float mat[4][4];
701                 Mat4Invert(ob->imat, ob->obmat);
702                 Mat4MulMat4(mat, cam->dof_ob->obmat, ob->imat);
703                 return fabs(mat[3][2]);
704         }
705         return cam->YF_dofdist;
706 }
707
708 void *add_lamp(char *name)
709 {
710         Lamp *la;
711         
712         la=  alloc_libblock(&G.main->lamp, ID_LA, name);
713         
714         la->r= la->g= la->b= la->k= 1.0;
715         la->haint= la->energy= 1.0;
716         la->dist= 20.0;
717         la->spotsize= 45.0;
718         la->spotblend= 0.15;
719         la->att2= 1.0;
720         la->mode= LA_SHAD_BUF;
721         la->bufsize= 512;
722         la->clipsta= 0.5;
723         la->clipend= 40.0;
724         la->shadspotsize= 45.0;
725         la->samp= 3;
726         la->bias= 1.0;
727         la->soft= 3.0;
728         la->ray_samp= la->ray_sampy= la->ray_sampz= 1; 
729         la->area_size=la->area_sizey=la->area_sizez= 1.0; 
730         la->buffers= 1;
731         la->buftype= LA_SHADBUF_HALFWAY;
732         la->ray_samp_method = LA_SAMP_HALTON;
733         la->adapt_thresh = 0.001;
734         la->preview=NULL;
735         la->falloff_type = LA_FALLOFF_INVLINEAR;
736         la->curfalloff = curvemapping_add(1, 0.0f, 1.0f, 1.0f, 0.0f);
737         la->sun_effect_type = 0;
738         la->horizon_brightness = 1.0;
739         la->spread = 1.0;
740         la->sun_brightness = 1.0;
741         la->sun_size = 1.0;
742         la->backscattered_light = 1.0;
743         la->atm_turbidity = 2.0;
744         la->atm_inscattering_factor = 1.0;
745         la->atm_extinction_factor = 1.0;
746         la->atm_distance_factor = 1.0;
747         la->sun_intensity = 1.0;
748         curvemapping_initialize(la->curfalloff);
749         return la;
750 }
751
752 Lamp *copy_lamp(Lamp *la)
753 {
754         Lamp *lan;
755         int a;
756         
757         lan= copy_libblock(la);
758
759         for(a=0; a<MAX_MTEX; a++) {
760                 if(lan->mtex[a]) {
761                         lan->mtex[a]= MEM_mallocN(sizeof(MTex), "copylamptex");
762                         memcpy(lan->mtex[a], la->mtex[a], sizeof(MTex));
763                         id_us_plus((ID *)lan->mtex[a]->tex);
764                 }
765         }
766         
767         lan->curfalloff = curvemapping_copy(la->curfalloff);
768         
769         id_us_plus((ID *)lan->ipo);
770
771         if (la->preview) lan->preview = BKE_previewimg_copy(la->preview);
772
773         BPY_copy_scriptlink(&la->scriptlink);
774         
775         return lan;
776 }
777
778 void make_local_lamp(Lamp *la)
779 {
780         Object *ob;
781         Lamp *lan;
782         int local=0, lib=0;
783
784         /* - only lib users: do nothing
785             * - only local users: set flag
786             * - mixed: make copy
787             */
788         
789         if(la->id.lib==0) return;
790         if(la->id.us==1) {
791                 la->id.lib= 0;
792                 la->id.flag= LIB_LOCAL;
793                 new_id(0, (ID *)la, 0);
794                 return;
795         }
796         
797         ob= G.main->object.first;
798         while(ob) {
799                 if(ob->data==la) {
800                         if(ob->id.lib) lib= 1;
801                         else local= 1;
802                 }
803                 ob= ob->id.next;
804         }
805         
806         if(local && lib==0) {
807                 la->id.lib= 0;
808                 la->id.flag= LIB_LOCAL;
809                 new_id(0, (ID *)la, 0);
810         }
811         else if(local && lib) {
812                 lan= copy_lamp(la);
813                 lan->id.us= 0;
814                 
815                 ob= G.main->object.first;
816                 while(ob) {
817                         if(ob->data==la) {
818                                 
819                                 if(ob->id.lib==0) {
820                                         ob->data= lan;
821                                         lan->id.us++;
822                                         la->id.us--;
823                                 }
824                         }
825                         ob= ob->id.next;
826                 }
827         }
828 }
829
830 void free_camera(Camera *ca)
831 {
832         BPY_free_scriptlink(&ca->scriptlink);
833 }
834
835 void free_lamp(Lamp *la)
836 {
837         MTex *mtex;
838         int a;
839
840         /* scriptlinks */
841                 
842         BPY_free_scriptlink(&la->scriptlink);
843
844         for(a=0; a<MAX_MTEX; a++) {
845                 mtex= la->mtex[a];
846                 if(mtex && mtex->tex) mtex->tex->id.us--;
847                 if(mtex) MEM_freeN(mtex);
848         }
849         la->ipo= 0;
850
851         curvemapping_free(la->curfalloff);
852         
853         BKE_previewimg_free(&la->preview);
854         BKE_icon_delete(&la->id);
855         la->id.icon_id = 0;
856 }
857
858 void *add_wave()
859 {
860         return 0;
861 }
862
863
864 /* *************************************************** */
865
866 static void *add_obdata_from_type(int type)
867 {
868         switch (type) {
869         case OB_MESH: G.totmesh++; return add_mesh("Mesh");
870         case OB_CURVE: G.totcurve++; return add_curve("Curve", OB_CURVE);
871         case OB_SURF: G.totcurve++; return add_curve("Surf", OB_SURF);
872         case OB_FONT: return add_curve("Text", OB_FONT);
873         case OB_MBALL: return add_mball("Meta");
874         case OB_CAMERA: return add_camera("Camera");
875         case OB_LAMP: G.totlamp++; return add_lamp("Lamp");
876         case OB_LATTICE: return add_lattice("Lattice");
877         case OB_WAVE: return add_wave();
878         case OB_ARMATURE: return add_armature("Armature");
879         case OB_EMPTY: return NULL;
880         default:
881                 printf("add_obdata_from_type: Internal error, bad type: %d\n", type);
882                 return NULL;
883         }
884 }
885
886 static char *get_obdata_defname(int type)
887 {
888         switch (type) {
889         case OB_MESH: return "Mesh";
890         case OB_CURVE: return "Curve";
891         case OB_SURF: return "Surf";
892         case OB_FONT: return "Font";
893         case OB_MBALL: return "Mball";
894         case OB_CAMERA: return "Camera";
895         case OB_LAMP: return "Lamp";
896         case OB_LATTICE: return "Lattice";
897         case OB_WAVE: return "Wave";
898         case OB_ARMATURE: return "Armature";
899         case OB_EMPTY: return "Empty";
900         default:
901                 printf("get_obdata_defname: Internal error, bad type: %d\n", type);
902                 return "Empty";
903         }
904 }
905
906 /* more general add: creates minimum required data, but without vertices etc. */
907 Object *add_only_object(int type, char *name)
908 {
909         Object *ob;
910
911         ob= alloc_libblock(&G.main->object, ID_OB, name);
912         G.totobj++;
913
914         /* default object vars */
915         ob->type= type;
916         /* ob->transflag= OB_QUAT; */
917
918 #if 0 /* not used yet */
919         QuatOne(ob->quat);
920         QuatOne(ob->dquat);
921 #endif 
922
923         ob->col[0]= ob->col[1]= ob->col[2]= 1.0;
924         ob->col[3]= 1.0;
925
926         ob->loc[0]= ob->loc[1]= ob->loc[2]= 0.0;
927         ob->rot[0]= ob->rot[1]= ob->rot[2]= 0.0;
928         ob->size[0]= ob->size[1]= ob->size[2]= 1.0;
929
930         Mat4One(ob->constinv);
931         Mat4One(ob->parentinv);
932         Mat4One(ob->obmat);
933         ob->dt= OB_SHADED;
934         if(U.flag & USER_MAT_ON_OB) ob->colbits= -1;
935         ob->empty_drawtype= OB_ARROWS;
936         ob->empty_drawsize= 1.0;
937
938         if(type==OB_CAMERA || type==OB_LAMP) {
939                 ob->trackflag= OB_NEGZ;
940                 ob->upflag= OB_POSY;
941         }
942         else {
943                 ob->trackflag= OB_POSY;
944                 ob->upflag= OB_POSZ;
945         }
946         ob->ipoflag = OB_OFFS_OB+OB_OFFS_PARENT;
947         ob->ipowin= ID_OB;      /* the ipowin shown */
948         ob->dupon= 1; ob->dupoff= 0;
949         ob->dupsta= 1; ob->dupend= 100;
950         ob->dupfacesca = 1.0;
951
952         /* Game engine defaults*/
953         ob->mass= ob->inertia= 1.0f;
954         ob->formfactor= 0.4f;
955         ob->damping= 0.04f;
956         ob->rdamping= 0.1f;
957         ob->anisotropicFriction[0] = 1.0f;
958         ob->anisotropicFriction[1] = 1.0f;
959         ob->anisotropicFriction[2] = 1.0f;
960         ob->gameflag= OB_PROP;
961
962         /* NT fluid sim defaults */
963         ob->fluidsimFlag = 0;
964         ob->fluidsimSettings = NULL;
965
966         return ob;
967 }
968
969 /* general add: to G.scene, with layer from area and default name */
970 /* creates minimum required data, but without vertices etc. */
971 Object *add_object(int type)
972 {
973         Object *ob;
974         Base *base;
975         char name[32];
976
977         strcpy(name, get_obdata_defname(type));
978         ob = add_only_object(type, name);
979
980         ob->data= add_obdata_from_type(type);
981
982         ob->lay= G.scene->lay;
983
984         base= scene_add_base(G.scene, ob);
985         scene_select_base(G.scene, base);
986         ob->recalc |= OB_RECALC;
987
988         return ob;
989 }
990
991 void base_init_from_view3d(Base *base, View3D *v3d)
992 {
993         Object *ob= base->object;
994         
995         if (!v3d) {
996                 /* no 3d view, this wont happen often */
997                 base->lay = 1;
998                 VECCOPY(ob->loc, G.scene->cursor);
999                 
1000                 /* return now because v3d->viewquat isnt available */
1001                 return;
1002         } else if (v3d->localview) {
1003                 base->lay= ob->lay= v3d->layact + v3d->lay;
1004                 VECCOPY(ob->loc, v3d->cursor);
1005         } else {
1006                 base->lay= ob->lay= v3d->layact;
1007                 VECCOPY(ob->loc, G.scene->cursor);
1008         }
1009
1010         if (U.flag & USER_ADD_VIEWALIGNED) {
1011                 v3d->viewquat[0]= -v3d->viewquat[0];
1012
1013                 /* Quats arnt used yet */
1014                 /*if (ob->transflag & OB_QUAT) {
1015                         QUATCOPY(ob->quat, v3d->viewquat);
1016                 } else {*/
1017                         QuatToEul(v3d->viewquat, ob->rot);
1018                 /*}*/
1019                 v3d->viewquat[0]= -v3d->viewquat[0];
1020         }
1021 }
1022
1023 SoftBody *copy_softbody(SoftBody *sb)
1024 {
1025         SoftBody *sbn;
1026         
1027         if (sb==NULL) return(NULL);
1028         
1029         sbn= MEM_dupallocN(sb);
1030         sbn->totspring= sbn->totpoint= 0;
1031         sbn->bpoint= NULL;
1032         sbn->bspring= NULL;
1033         
1034         sbn->keys= NULL;
1035         sbn->totkey= sbn->totpointkey= 0;
1036         
1037         sbn->scratch= NULL;
1038
1039         sbn->pointcache= BKE_ptcache_copy(sb->pointcache);
1040
1041         return sbn;
1042 }
1043
1044 ParticleSystem *copy_particlesystem(ParticleSystem *psys)
1045 {
1046         ParticleSystem *psysn;
1047         ParticleData *pa;
1048         int a;
1049
1050         psysn= MEM_dupallocN(psys);
1051         psysn->particles= MEM_dupallocN(psys->particles);
1052         psysn->child= MEM_dupallocN(psys->child);
1053
1054         for(a=0, pa=psysn->particles; a<psysn->totpart; a++, pa++) {
1055                 if(pa->hair)
1056                         pa->hair= MEM_dupallocN(pa->hair);
1057                 if(pa->keys)
1058                         pa->keys= MEM_dupallocN(pa->keys);
1059         }
1060
1061         if(psys->soft) {
1062                 psysn->soft= copy_softbody(psys->soft);
1063                 psysn->soft->particles = psysn;
1064         }
1065         
1066         psysn->pathcache= NULL;
1067         psysn->childcache= NULL;
1068         psysn->edit= NULL;
1069         psysn->effectors.first= psysn->effectors.last= 0;
1070         
1071         psysn->pathcachebufs.first = psysn->pathcachebufs.last = NULL;
1072         psysn->childcachebufs.first = psysn->childcachebufs.last = NULL;
1073         psysn->reactevents.first = psysn->reactevents.last = NULL;
1074         psysn->renderdata = NULL;
1075         
1076         psysn->pointcache= BKE_ptcache_copy(psys->pointcache);
1077
1078         id_us_plus((ID *)psysn->part);
1079
1080         return psysn;
1081 }
1082
1083 void copy_object_particlesystems(Object *obn, Object *ob)
1084 {
1085         ParticleSystemModifierData *psmd;
1086         ParticleSystem *psys, *npsys;
1087         ModifierData *md;
1088
1089         obn->particlesystem.first= obn->particlesystem.last= NULL;
1090         for(psys=ob->particlesystem.first; psys; psys=psys->next) {
1091                 npsys= copy_particlesystem(psys);
1092
1093                 BLI_addtail(&obn->particlesystem, npsys);
1094
1095                 /* need to update particle modifiers too */
1096                 for(md=obn->modifiers.first; md; md=md->next) {
1097                         if(md->type==eModifierType_ParticleSystem) {
1098                                 psmd= (ParticleSystemModifierData*)md;
1099                                 if(psmd->psys==psys)
1100                                         psmd->psys= npsys;
1101                         }
1102                 }
1103         }
1104 }
1105
1106 void copy_object_softbody(Object *obn, Object *ob)
1107 {
1108         if(ob->soft)
1109                 obn->soft= copy_softbody(ob->soft);
1110 }
1111
1112 static void copy_object_pose(Object *obn, Object *ob)
1113 {
1114         bPoseChannel *chan;
1115         
1116         /* note: need to clear obn->pose pointer first, so that copy_pose works (otherwise there's a crash) */
1117         obn->pose= NULL;
1118         copy_pose(&obn->pose, ob->pose, 1);     /* 1 = copy constraints */
1119
1120         for (chan = obn->pose->chanbase.first; chan; chan=chan->next){
1121                 bConstraint *con;
1122                 
1123                 chan->flag &= ~(POSE_LOC|POSE_ROT|POSE_SIZE);
1124                 
1125                 for (con= chan->constraints.first; con; con= con->next) {
1126                         bConstraintTypeInfo *cti= constraint_get_typeinfo(con);
1127                         ListBase targets = {NULL, NULL};
1128                         bConstraintTarget *ct;
1129                         
1130                         if(con->ipo) {
1131                                 IpoCurve *icu;
1132                                 for(icu= con->ipo->curve.first; icu; icu= icu->next) {
1133                                         if(icu->driver && icu->driver->ob==ob)
1134                                                 icu->driver->ob= obn;
1135                                 }
1136                         }
1137                         
1138                         if (cti && cti->get_constraint_targets) {
1139                                 cti->get_constraint_targets(con, &targets);
1140                                 
1141                                 for (ct= targets.first; ct; ct= ct->next) {
1142                                         if (ct->tar == ob)
1143                                                 ct->tar = obn;
1144                                 }
1145                                 
1146                                 if (cti->flush_constraint_targets)
1147                                         cti->flush_constraint_targets(con, &targets, 0);
1148                         }
1149                 }
1150         }
1151 }
1152
1153 Object *copy_object(Object *ob)
1154 {
1155         Object *obn;
1156         ModifierData *md;
1157         int a;
1158
1159         obn= copy_libblock(ob);
1160         
1161         if(ob->totcol) {
1162                 obn->mat= MEM_dupallocN(ob->mat);
1163         }
1164         
1165         if(ob->bb) obn->bb= MEM_dupallocN(ob->bb);
1166         obn->path= NULL;
1167         obn->flag &= ~OB_FROMGROUP;
1168         
1169         obn->modifiers.first = obn->modifiers.last= NULL;
1170         
1171         for (md=ob->modifiers.first; md; md=md->next) {
1172                 ModifierData *nmd = modifier_new(md->type);
1173                 modifier_copyData(md, nmd);
1174                 BLI_addtail(&obn->modifiers, nmd);
1175         }
1176         
1177         BPY_copy_scriptlink(&ob->scriptlink);
1178         
1179         copy_properties(&obn->prop, &ob->prop);
1180         copy_sensors(&obn->sensors, &ob->sensors);
1181         copy_controllers(&obn->controllers, &ob->controllers);
1182         copy_actuators(&obn->actuators, &ob->actuators);
1183         
1184         if(ob->pose) {
1185                 copy_object_pose(obn, ob);
1186                 /* backwards compat... non-armatures can get poses in older files? */
1187                 if(ob->type==OB_ARMATURE)
1188                         armature_rebuild_pose(obn, obn->data);
1189         }
1190         copy_defgroups(&obn->defbase, &ob->defbase);
1191         copy_nlastrips(&obn->nlastrips, &ob->nlastrips);
1192         copy_constraints (&obn->constraints, &ob->constraints);
1193
1194         clone_constraint_channels (&obn->constraintChannels, &ob->constraintChannels);
1195
1196         /* increase user numbers */
1197         id_us_plus((ID *)obn->data);
1198         id_us_plus((ID *)obn->ipo);
1199         id_us_plus((ID *)obn->action);
1200         id_us_plus((ID *)obn->dup_group);
1201
1202         for(a=0; a<obn->totcol; a++) id_us_plus((ID *)obn->mat[a]);
1203         
1204         obn->disp.first= obn->disp.last= NULL;
1205         
1206         if(ob->pd){
1207                 obn->pd= MEM_dupallocN(ob->pd);
1208                 if(obn->pd->tex)
1209                         id_us_plus(&(obn->pd->tex->id));
1210         }
1211         obn->soft= copy_softbody(ob->soft);
1212
1213         copy_object_particlesystems(obn, ob);
1214         
1215         obn->derivedDeform = NULL;
1216         obn->derivedFinal = NULL;
1217
1218 #ifdef WITH_VERSE
1219         obn->vnode = NULL;
1220 #endif
1221
1222         obn->gpulamp.first = obn->gpulamp.last = NULL;
1223
1224         return obn;
1225 }
1226
1227 void expand_local_object(Object *ob)
1228 {
1229         bActionStrip *strip;
1230         ParticleSystem *psys;
1231         int a;
1232         
1233         id_lib_extern((ID *)ob->action);
1234         id_lib_extern((ID *)ob->ipo);
1235         id_lib_extern((ID *)ob->data);
1236         id_lib_extern((ID *)ob->dup_group);
1237         
1238         for(a=0; a<ob->totcol; a++) {
1239                 id_lib_extern((ID *)ob->mat[a]);
1240         }
1241         for (strip=ob->nlastrips.first; strip; strip=strip->next) {
1242                 id_lib_extern((ID *)strip->act);
1243         }
1244         for(psys=ob->particlesystem.first; psys; psys=psys->next)
1245                 id_lib_extern((ID *)psys->part);
1246 }
1247
1248 void make_local_object(Object *ob)
1249 {
1250         Object *obn;
1251         Scene *sce;
1252         Base *base;
1253         int local=0, lib=0;
1254
1255         /* - only lib users: do nothing
1256             * - only local users: set flag
1257             * - mixed: make copy
1258             */
1259         
1260         if(ob->id.lib==NULL) return;
1261         
1262         ob->proxy= ob->proxy_from= NULL;
1263         
1264         if(ob->id.us==1) {
1265                 ob->id.lib= NULL;
1266                 ob->id.flag= LIB_LOCAL;
1267                 new_id(0, (ID *)ob, 0);
1268
1269         }
1270         else {
1271                 sce= G.main->scene.first;
1272                 while(sce) {
1273                         base= sce->base.first;
1274                         while(base) {
1275                                 if(base->object==ob) {
1276                                         if(sce->id.lib) lib++;
1277                                         else local++;
1278                                         break;
1279                                 }
1280                                 base= base->next;
1281                         }
1282                         sce= sce->id.next;
1283                 }
1284                 
1285                 if(local && lib==0) {
1286                         ob->id.lib= 0;
1287                         ob->id.flag= LIB_LOCAL;
1288                         new_id(0, (ID *)ob, 0);
1289                 }
1290                 else if(local && lib) {
1291                         obn= copy_object(ob);
1292                         obn->id.us= 0;
1293                         
1294                         sce= G.main->scene.first;
1295                         while(sce) {
1296                                 if(sce->id.lib==0) {
1297                                         base= sce->base.first;
1298                                         while(base) {
1299                                                 if(base->object==ob) {
1300                                                         base->object= obn;
1301                                                         obn->id.us++;
1302                                                         ob->id.us--;
1303                                                 }
1304                                                 base= base->next;
1305                                         }
1306                                 }
1307                                 sce= sce->id.next;
1308                         }
1309                 }
1310         }
1311         
1312         expand_local_object(ob);
1313 }
1314
1315 /* *************** PROXY **************** */
1316
1317 /* when you make proxy, ensure the exposed layers are extern */
1318 void armature_set_id_extern(Object *ob)
1319 {
1320         bArmature *arm= ob->data;
1321         bPoseChannel *pchan;
1322         int lay= arm->layer_protected;
1323         
1324         for (pchan = ob->pose->chanbase.first; pchan; pchan=pchan->next) {
1325                 if(!(pchan->bone->layer & lay))
1326                         id_lib_extern((ID *)pchan->custom);
1327         }
1328                         
1329 }
1330
1331 /* proxy rule: lib_object->proxy_from == the one we borrow from, set temporally while object_update */
1332 /*             local_object->proxy == pointer to library object, saved in files and read */
1333 /*             local_object->proxy_group == pointer to group dupli-object, saved in files and read */
1334
1335 void object_make_proxy(Object *ob, Object *target, Object *gob)
1336 {
1337         /* paranoia checks */
1338         if(ob->id.lib || target->id.lib==NULL) {
1339                 printf("cannot make proxy\n");
1340                 return;
1341         }
1342         
1343         ob->proxy= target;
1344         ob->proxy_group= gob;
1345         id_lib_extern(&target->id);
1346         
1347         ob->recalc= target->recalc= OB_RECALC;
1348         
1349         /* copy transform */
1350         if(gob) {
1351                 VECCOPY(ob->loc, gob->loc);
1352                 VECCOPY(ob->rot, gob->rot);
1353                 VECCOPY(ob->size, gob->size);
1354                 
1355                 group_tag_recalc(gob->dup_group);
1356         }
1357         else {
1358                 VECCOPY(ob->loc, target->loc);
1359                 VECCOPY(ob->rot, target->rot);
1360                 VECCOPY(ob->size, target->size);
1361         }
1362         
1363         ob->parent= target->parent;     /* libdata */
1364         Mat4CpyMat4(ob->parentinv, target->parentinv);
1365         ob->ipo= target->ipo;           /* libdata */
1366         
1367         /* skip constraints, constraintchannels, nla? */
1368         
1369         /* set object type and link to data */
1370         ob->type= target->type;
1371         ob->data= target->data;
1372         id_us_plus((ID *)ob->data);             /* ensures lib data becomes LIB_EXTERN */
1373         
1374         /* copy material and index information */
1375         ob->actcol= ob->totcol= 0;
1376         if(ob->mat) MEM_freeN(ob->mat);
1377         ob->mat = NULL;
1378         if ((target->totcol) && (target->mat) && OB_SUPPORT_MATERIAL(ob)) {
1379                 int i;
1380                 ob->colbits = target->colbits;
1381                 
1382                 ob->actcol= target->actcol;
1383                 ob->totcol= target->totcol;
1384                 
1385                 ob->mat = MEM_dupallocN(target->mat);
1386                 for(i=0; i<target->totcol; i++) {
1387                         /* dont need to run test_object_materials since we know this object is new and not used elsewhere */
1388                         id_us_plus((ID *)ob->mat[i]); 
1389                 }
1390         }
1391         
1392         /* type conversions */
1393         if(target->type == OB_ARMATURE) {
1394                 copy_object_pose(ob, target);   /* data copy, object pointers in constraints */
1395                 rest_pose(ob->pose);                    /* clear all transforms in channels */
1396                 armature_rebuild_pose(ob, ob->data);    /* set all internal links */
1397                 
1398                 armature_set_id_extern(ob);
1399         }
1400 }
1401
1402
1403 /* *************** CALC ****************** */
1404
1405 /* there is also a timing calculation in drawobject() */
1406
1407 float bluroffs= 0.0f, fieldoffs= 0.0f;
1408 int no_speed_curve= 0;
1409
1410 /* ugly calls from render */
1411 void set_mblur_offs(float blur)
1412 {
1413         bluroffs= blur;
1414 }
1415
1416 void set_field_offs(float field)
1417 {
1418         fieldoffs= field;
1419 }
1420
1421 void disable_speed_curve(int val)
1422 {
1423         no_speed_curve= val;
1424 }
1425
1426 /* ob can be NULL */
1427 float bsystem_time(Object *ob, float cfra, float ofs)
1428 {
1429         /* returns float ( see frame_to_float in ipo.c) */
1430         
1431         /* bluroffs and fieldoffs are ugly globals that are set by render */
1432         cfra+= bluroffs+fieldoffs;
1433
1434         /* global time */
1435         cfra*= G.scene->r.framelen;     
1436         
1437         if (ob) {
1438                 if (no_speed_curve==0 && ob->ipo)
1439                         cfra= calc_ipo_time(ob->ipo, cfra);
1440                 
1441                 /* ofset frames */
1442                 if ((ob->ipoflag & OB_OFFS_PARENT) && (ob->partype & PARSLOW)==0) 
1443                         cfra-= give_timeoffset(ob);
1444         }
1445         
1446         cfra-= ofs;
1447
1448         return cfra;
1449 }
1450
1451 void object_to_mat3(Object *ob, float mat[][3]) /* no parent */
1452 {
1453         float smat[3][3], vec[3];
1454         float rmat[3][3];
1455         /*float q1[4];*/
1456         
1457         /* size */
1458         if(ob->ipo) {
1459                 vec[0]= ob->size[0]+ob->dsize[0];
1460                 vec[1]= ob->size[1]+ob->dsize[1];
1461                 vec[2]= ob->size[2]+ob->dsize[2];
1462                 SizeToMat3(vec, smat);
1463         }
1464         else {
1465                 SizeToMat3(ob->size, smat);
1466         }
1467
1468         /* rot */
1469         /* Quats arnt used yet */
1470         /*if(ob->transflag & OB_QUAT) {
1471                 if(ob->ipo) {
1472                         QuatMul(q1, ob->quat, ob->dquat);
1473                         QuatToMat3(q1, rmat);
1474                 }
1475                 else {
1476                         QuatToMat3(ob->quat, rmat);
1477                 }
1478         }
1479         else {*/
1480                 if(ob->ipo) {
1481                         vec[0]= ob->rot[0]+ob->drot[0];
1482                         vec[1]= ob->rot[1]+ob->drot[1];
1483                         vec[2]= ob->rot[2]+ob->drot[2];
1484                         EulToMat3(vec, rmat);
1485                 }
1486                 else {
1487                         EulToMat3(ob->rot, rmat);
1488                 }
1489         /*}*/
1490         Mat3MulMat3(mat, rmat, smat);
1491 }
1492
1493 void object_to_mat4(Object *ob, float mat[][4])
1494 {
1495         float tmat[3][3];
1496         
1497         object_to_mat3(ob, tmat);
1498         
1499         Mat4CpyMat3(mat, tmat);
1500         
1501         VECCOPY(mat[3], ob->loc);
1502         if(ob->ipo) {
1503                 mat[3][0]+= ob->dloc[0];
1504                 mat[3][1]+= ob->dloc[1];
1505                 mat[3][2]+= ob->dloc[2];
1506         }
1507 }
1508
1509 int enable_cu_speed= 1;
1510
1511 static void ob_parcurve(Object *ob, Object *par, float mat[][4])
1512 {
1513         Curve *cu;
1514         float q[4], vec[4], dir[3], quat[4], x1, ctime;
1515         float timeoffs = 0.0, sf_orig = 0.0;
1516         
1517         Mat4One(mat);
1518         
1519         cu= par->data;
1520         if(cu->path==NULL || cu->path->data==NULL) /* only happens on reload file, but violates depsgraph still... fix! */
1521                 makeDispListCurveTypes(par, 0);
1522         if(cu->path==NULL) return;
1523         
1524         /* exception, timeoffset is regarded as distance offset */
1525         if(cu->flag & CU_OFFS_PATHDIST) {
1526                 timeoffs = give_timeoffset(ob);
1527                 SWAP(float, sf_orig, ob->sf);
1528         }
1529         
1530         /* catch exceptions: feature for nla stride editing */
1531         if(ob->ipoflag & OB_DISABLE_PATH) {
1532                 ctime= 0.0f;
1533         }
1534         /* catch exceptions: curve paths used as a duplicator */
1535         else if(enable_cu_speed) {
1536                 ctime= bsystem_time(ob, (float)G.scene->r.cfra, 0.0);
1537                 
1538                 if(calc_ipo_spec(cu->ipo, CU_SPEED, &ctime)==0) {
1539                         ctime /= cu->pathlen;
1540                         CLAMP(ctime, 0.0, 1.0);
1541                 }
1542         }
1543         else {
1544                 ctime= G.scene->r.cfra - give_timeoffset(ob);
1545                 ctime /= cu->pathlen;
1546                 
1547                 CLAMP(ctime, 0.0, 1.0);
1548         }
1549         
1550         /* time calculus is correct, now apply distance offset */
1551         if(cu->flag & CU_OFFS_PATHDIST) {
1552                 ctime += timeoffs/cu->path->totdist;
1553
1554                 /* restore */
1555                 SWAP(float, sf_orig, ob->sf);
1556         }
1557         
1558         
1559         /* vec: 4 items! */
1560         if( where_on_path(par, ctime, vec, dir) ) {
1561
1562                 if(cu->flag & CU_FOLLOW) {
1563                         vectoquat(dir, ob->trackflag, ob->upflag, quat);
1564                         
1565                         /* the tilt */
1566                         Normalize(dir);
1567                         q[0]= (float)cos(0.5*vec[3]);
1568                         x1= (float)sin(0.5*vec[3]);
1569                         q[1]= -x1*dir[0];
1570                         q[2]= -x1*dir[1];
1571                         q[3]= -x1*dir[2];
1572                         QuatMul(quat, q, quat);
1573                         
1574                         QuatToMat4(quat, mat);
1575                 }
1576                 
1577                 VECCOPY(mat[3], vec);
1578                 
1579         }
1580 }
1581
1582 static void ob_parbone(Object *ob, Object *par, float mat[][4])
1583 {       
1584         bPoseChannel *pchan;
1585         bArmature *arm;
1586         float vec[3];
1587         
1588         arm=get_armature(par);
1589         if (!arm) {
1590                 Mat4One(mat);
1591                 return;
1592         }
1593         
1594         /* Make sure the bone is still valid */
1595         pchan= get_pose_channel(par->pose, ob->parsubstr);
1596         if (!pchan){
1597                 printf ("Object %s with Bone parent: bone %s doesn't exist\n", ob->id.name+2, ob->parsubstr);
1598                 Mat4One(mat);
1599                 return;
1600         }
1601
1602         /* get bone transform */
1603         Mat4CpyMat4(mat, pchan->pose_mat);
1604
1605         /* but for backwards compatibility, the child has to move to the tail */
1606         VECCOPY(vec, mat[1]);
1607         VecMulf(vec, pchan->bone->length);
1608         VecAddf(mat[3], mat[3], vec);
1609 }
1610
1611 static void give_parvert(Object *par, int nr, float *vec)
1612 {
1613         int a, count;
1614         
1615         vec[0]=vec[1]=vec[2]= 0.0f;
1616         
1617         if(par->type==OB_MESH) {
1618                 if(G.obedit && (par->data==G.obedit->data)) {
1619                         EditMesh *em = G.editMesh;
1620                         EditVert *eve;
1621                         
1622                         for(eve= em->verts.first; eve; eve= eve->next) {
1623                                 if(eve->keyindex==nr) {
1624                                         memcpy(vec, eve->co, sizeof(float)*3);
1625                                         break;
1626                                 }
1627                         }
1628                 }
1629                 else {
1630                         DerivedMesh *dm = par->derivedFinal;
1631                         
1632                         if(dm) {
1633                                 int i, count = 0, numVerts = dm->getNumVerts(dm);
1634                                 int *index = (int *)dm->getVertDataArray(dm, CD_ORIGINDEX);
1635                                 float co[3];
1636
1637                                 /* get the average of all verts with (original index == nr) */
1638                                 for(i = 0; i < numVerts; ++i, ++index) {
1639                                         if(*index == nr) {
1640                                                 dm->getVertCo(dm, i, co);
1641                                                 VecAddf(vec, vec, co);
1642                                                 count++;
1643                                         }
1644                                 }
1645
1646                                 if (count==0) {
1647                                         /* keep as 0,0,0 */
1648                                 } else if(count > 0) {
1649                                         VecMulf(vec, 1.0f / count);
1650                                 } else {
1651                                         /* use first index if its out of range */
1652                                         dm->getVertCo(dm, 0, vec);
1653                                 }
1654                         }
1655                 }
1656         }
1657         else if ELEM(par->type, OB_CURVE, OB_SURF) {
1658                 Nurb *nu;
1659                 Curve *cu;
1660                 BPoint *bp;
1661                 BezTriple *bezt;
1662                 int found= 0;
1663                 
1664                 cu= par->data;
1665                 nu= cu->nurb.first;
1666                 if(par==G.obedit) nu= editNurb.first;
1667                 
1668                 count= 0;
1669                 while(nu && !found) {
1670                         if((nu->type & 7)==CU_BEZIER) {
1671                                 bezt= nu->bezt;
1672                                 a= nu->pntsu;
1673                                 while(a--) {
1674                                         if(count==nr) {
1675                                                 found= 1;
1676                                                 VECCOPY(vec, bezt->vec[1]);
1677                                                 break;
1678                                         }
1679                                         count++;
1680                                         bezt++;
1681                                 }
1682                         }
1683                         else {
1684                                 bp= nu->bp;
1685                                 a= nu->pntsu*nu->pntsv;
1686                                 while(a--) {
1687                                         if(count==nr) {
1688                                                 found= 1;
1689                                                 memcpy(vec, bp->vec, sizeof(float)*3);
1690                                                 break;
1691                                         }
1692                                         count++;
1693                                         bp++;
1694                                 }
1695                         }
1696                         nu= nu->next;
1697                 }
1698
1699         }
1700         else if(par->type==OB_LATTICE) {
1701                 Lattice *latt= par->data;
1702                 BPoint *bp;
1703                 DispList *dl = find_displist(&par->disp, DL_VERTS);
1704                 float *co = dl?dl->verts:NULL;
1705                 
1706                 if(par==G.obedit) latt= editLatt;
1707                 
1708                 a= latt->pntsu*latt->pntsv*latt->pntsw;
1709                 count= 0;
1710                 bp= latt->def;
1711                 while(a--) {
1712                         if(count==nr) {
1713                                 if(co)
1714                                         memcpy(vec, co, 3*sizeof(float));
1715                                 else
1716                                         memcpy(vec, bp->vec, 3*sizeof(float));
1717                                 break;
1718                         }
1719                         count++;
1720                         if(co) co+= 3;
1721                         else bp++;
1722                 }
1723         }
1724 }
1725
1726 static void ob_parvert3(Object *ob, Object *par, float mat[][4])
1727 {
1728         float cmat[3][3], v1[3], v2[3], v3[3], q[4];
1729
1730         /* in local ob space */
1731         Mat4One(mat);
1732         
1733         if ELEM4(par->type, OB_MESH, OB_SURF, OB_CURVE, OB_LATTICE) {
1734                 
1735                 give_parvert(par, ob->par1, v1);
1736                 give_parvert(par, ob->par2, v2);
1737                 give_parvert(par, ob->par3, v3);
1738                                 
1739                 triatoquat(v1, v2, v3, q);
1740                 QuatToMat3(q, cmat);
1741                 Mat4CpyMat3(mat, cmat);
1742                 
1743                 if(ob->type==OB_CURVE) {
1744                         VECCOPY(mat[3], v1);
1745                 }
1746                 else {
1747                         VecAddf(mat[3], v1, v2);
1748                         VecAddf(mat[3], mat[3], v3);
1749                         VecMulf(mat[3], 0.3333333f);
1750                 }
1751         }
1752 }
1753
1754 static int no_parent_ipo=0;
1755 void set_no_parent_ipo(int val)
1756 {
1757         no_parent_ipo= val;
1758 }
1759
1760 static int during_script_flag=0;
1761 void disable_where_script(short on)
1762 {
1763         during_script_flag= on;
1764 }
1765
1766 int during_script(void) {
1767         return during_script_flag;
1768 }
1769
1770 static int during_scriptlink_flag=0;
1771 void disable_where_scriptlink(short on)
1772 {
1773         during_scriptlink_flag= on;
1774 }
1775
1776 int during_scriptlink(void) {
1777         return during_scriptlink_flag;
1778 }
1779
1780 void where_is_object_time(Object *ob, float ctime)
1781 {
1782         float *fp1, *fp2, slowmat[4][4] = MAT4_UNITY;
1783         float stime, fac1, fac2, vec[3];
1784         int a;
1785         int pop; 
1786         
1787         /* new version: correct parent+vertexparent and track+parent */
1788         /* this one only calculates direct attached parent and track */
1789         /* is faster, but should keep track of timeoffs */
1790         
1791         if(ob==NULL) return;
1792         
1793         /* this is needed to be able to grab objects with ipos, otherwise it always freezes them */
1794         stime= bsystem_time(ob, ctime, 0.0);
1795         if(stime != ob->ctime) {
1796                 
1797                 ob->ctime= stime;
1798                 
1799                 if(ob->ipo) {
1800                         calc_ipo(ob->ipo, stime);
1801                         execute_ipo((ID *)ob, ob->ipo);
1802                 }
1803                 else 
1804                         do_all_object_actions(ob);
1805                 
1806                 /* do constraint ipos ..., note it needs stime (0 = all ipos) */
1807                 do_constraint_channels(&ob->constraints, &ob->constraintChannels, stime, 0);
1808         }
1809         else {
1810                 /* but, the drivers have to be done */
1811                 if(ob->ipo) do_ob_ipodrivers(ob, ob->ipo, stime);
1812                 /* do constraint ipos ..., note it needs stime (1 = only drivers ipos) */
1813                 do_constraint_channels(&ob->constraints, &ob->constraintChannels, stime, 1);
1814         }
1815         
1816         if(ob->parent) {
1817                 Object *par= ob->parent;
1818                 
1819                 if(ob->ipoflag & OB_OFFS_PARENT) ctime-= give_timeoffset(ob);
1820                 
1821                 /* hurms, code below conflicts with depgraph... (ton) */
1822                 /* and even worse, it gives bad effects for NLA stride too (try ctime != par->ctime, with MBlur) */
1823                 pop= 0;
1824                 if(no_parent_ipo==0 && stime != par->ctime) {
1825                 
1826                         // only for ipo systems? 
1827                         pushdata(par, sizeof(Object));
1828                         pop= 1;
1829                         
1830                         if(par->proxy_from);    // was a copied matrix, no where_is! bad...
1831                         else where_is_object_time(par, ctime);
1832                 }
1833                 
1834                 solve_parenting(ob, par, ob->obmat, slowmat, 0);
1835
1836                 if(pop) {
1837                         poplast(par);
1838                 }
1839                 
1840                 if(ob->partype & PARSLOW) {
1841                         // include framerate
1842
1843                         fac1= (1.0f/(1.0f+ fabs(give_timeoffset(ob))));
1844                         if(fac1>=1.0) return;
1845                         fac2= 1.0f-fac1;
1846                         
1847                         fp1= ob->obmat[0];
1848                         fp2= slowmat[0];
1849                         for(a=0; a<16; a++, fp1++, fp2++) {
1850                                 fp1[0]= fac1*fp1[0] + fac2*fp2[0];
1851                         }
1852                 }
1853         
1854         }
1855         else {
1856                 object_to_mat4(ob, ob->obmat);
1857         }
1858
1859         /* Handle tracking */
1860         if(ob->track) {
1861                 if( ctime != ob->track->ctime) where_is_object_time(ob->track, ctime);
1862                 solve_tracking (ob, ob->track->obmat);
1863                 
1864         }
1865
1866         /* solve constraints */
1867         if (ob->constraints.first) {
1868                 bConstraintOb *cob;
1869                 
1870                 cob= constraints_make_evalob(ob, NULL, CONSTRAINT_OBTYPE_OBJECT);
1871                 
1872                 /* constraints need ctime, not stime. Some call where_is_object_time and bsystem_time */
1873                 solve_constraints (&ob->constraints, cob, ctime);
1874                 
1875                 constraints_clear_evalob(cob);
1876         }
1877         
1878         if(ob->scriptlink.totscript && !during_script()) {
1879                 if (G.f & G_DOSCRIPTLINKS) BPY_do_pyscript((ID *)ob, SCRIPT_REDRAW);
1880         }
1881         
1882         /* set negative scale flag in object */
1883         Crossf(vec, ob->obmat[0], ob->obmat[1]);
1884         if( Inpf(vec, ob->obmat[2]) < 0.0 ) ob->transflag |= OB_NEG_SCALE;
1885         else ob->transflag &= ~OB_NEG_SCALE;
1886 }
1887
1888 static void solve_parenting (Object *ob, Object *par, float obmat[][4], float slowmat[][4], int simul)
1889 {
1890         float totmat[4][4];
1891         float tmat[4][4];
1892         float locmat[4][4];
1893         float vec[3];
1894         int ok;
1895
1896         object_to_mat4(ob, locmat);
1897         
1898         if(ob->partype & PARSLOW) Mat4CpyMat4(slowmat, obmat);
1899         
1900
1901         switch(ob->partype & PARTYPE) {
1902         case PAROBJECT:
1903                 ok= 0;
1904                 if(par->type==OB_CURVE) {
1905                         if( ((Curve *)par->data)->flag & CU_PATH ) {
1906                                 ob_parcurve(ob, par, tmat);
1907                                 ok= 1;
1908                         }
1909                 }
1910                 
1911                 if(ok) Mat4MulSerie(totmat, par->obmat, tmat, 
1912                         NULL, NULL, NULL, NULL, NULL, NULL);
1913                 else Mat4CpyMat4(totmat, par->obmat);
1914                 
1915                 break;
1916         case PARBONE:
1917                 ob_parbone(ob, par, tmat);
1918                 Mat4MulSerie(totmat, par->obmat, tmat,         
1919                         NULL, NULL, NULL, NULL, NULL, NULL);
1920                 break;
1921                 
1922         case PARVERT1:
1923                 Mat4One(totmat);
1924                 if (simul){
1925                         VECCOPY(totmat[3], par->obmat[3]);
1926                 }
1927                 else{
1928                         give_parvert(par, ob->par1, vec);
1929                         VecMat4MulVecfl(totmat[3], par->obmat, vec);
1930                 }
1931                 break;
1932         case PARVERT3:
1933                 ob_parvert3(ob, par, tmat);
1934                 
1935                 Mat4MulSerie(totmat, par->obmat, tmat,         
1936                         NULL, NULL, NULL, NULL, NULL, NULL);
1937                 break;
1938                 
1939         case PARSKEL:
1940                 Mat4CpyMat4(totmat, par->obmat);
1941                 break;
1942         }
1943         
1944         // total 
1945         Mat4MulSerie(tmat, totmat, ob->parentinv,         
1946                 NULL, NULL, NULL, NULL, NULL, NULL);
1947         Mat4MulSerie(obmat, tmat, locmat,         
1948                 NULL, NULL, NULL, NULL, NULL, NULL);
1949         
1950         if (simul) {
1951
1952         }
1953         else{
1954                 // external usable originmat 
1955                 Mat3CpyMat4(originmat, tmat);
1956                 
1957                 // origin, voor help line
1958                 if( (ob->partype & 15)==PARSKEL ) {
1959                         VECCOPY(ob->orig, par->obmat[3]);
1960                 }
1961                 else {
1962                         VECCOPY(ob->orig, totmat[3]);
1963                 }
1964         }
1965
1966 }
1967 void solve_tracking (Object *ob, float targetmat[][4])
1968 {
1969         float quat[4];
1970         float vec[3];
1971         float totmat[3][3];
1972         float tmat[4][4];
1973         
1974         VecSubf(vec, ob->obmat[3], targetmat[3]);
1975         vectoquat(vec, ob->trackflag, ob->upflag, quat);
1976         QuatToMat3(quat, totmat);
1977         
1978         if(ob->parent && (ob->transflag & OB_POWERTRACK)) {
1979                 /* 'temporal' : clear parent info */
1980                 object_to_mat4(ob, tmat);
1981                 tmat[0][3]= ob->obmat[0][3];
1982                 tmat[1][3]= ob->obmat[1][3];
1983                 tmat[2][3]= ob->obmat[2][3];
1984                 tmat[3][0]= ob->obmat[3][0];
1985                 tmat[3][1]= ob->obmat[3][1];
1986                 tmat[3][2]= ob->obmat[3][2];
1987                 tmat[3][3]= ob->obmat[3][3];
1988         }
1989         else Mat4CpyMat4(tmat, ob->obmat);
1990         
1991         Mat4MulMat34(ob->obmat, totmat, tmat);
1992
1993 }
1994
1995 void where_is_object(Object *ob)
1996 {
1997         where_is_object_time(ob, (float)G.scene->r.cfra);
1998 }
1999
2000
2001 void where_is_object_simul(Object *ob)
2002 /* was written for the old game engine (until 2.04) */
2003 /* It seems that this function is only called
2004 for a lamp that is the child of another object */
2005 {
2006         Object *par;
2007         Ipo *ipo;
2008         float *fp1, *fp2;
2009         float slowmat[4][4];
2010         float fac1, fac2;
2011         int a;
2012         
2013         /* NO TIMEOFFS */
2014         
2015         /* no ipo! (because of dloc and realtime-ipos) */
2016         ipo= ob->ipo;
2017         ob->ipo= NULL;
2018
2019         if(ob->parent) {
2020                 par= ob->parent;
2021                 
2022                 solve_parenting(ob, par, ob->obmat, slowmat, 1);
2023
2024                 if(ob->partype & PARSLOW) {
2025
2026                         fac1= (float)(1.0/(1.0+ fabs(give_timeoffset(ob))));
2027                         fac2= 1.0f-fac1;
2028                         fp1= ob->obmat[0];
2029                         fp2= slowmat[0];
2030                         for(a=0; a<16; a++, fp1++, fp2++) {
2031                                 fp1[0]= fac1*fp1[0] + fac2*fp2[0];
2032                         }
2033                 }
2034                 
2035         }
2036         else {
2037                 object_to_mat4(ob, ob->obmat);
2038         }
2039         
2040         if(ob->track) 
2041                 solve_tracking(ob, ob->track->obmat);
2042
2043         /* solve constraints */
2044         if (ob->constraints.first) {
2045                 bConstraintOb *cob;
2046                 
2047                 cob= constraints_make_evalob(ob, NULL, CONSTRAINT_OBTYPE_OBJECT);
2048                 solve_constraints (&ob->constraints, cob, G.scene->r.cfra);
2049                 constraints_clear_evalob(cob);
2050         }
2051         
2052         /*  WATCH IT!!! */
2053         ob->ipo= ipo;
2054 }
2055
2056 /* for calculation of the inverse parent transform, only used for editor */
2057 void what_does_parent(Object *ob)
2058 {
2059         clear_workob();
2060         Mat4One(workob.obmat);
2061         Mat4One(workob.parentinv);
2062         Mat4One(workob.constinv);
2063         workob.parent= ob->parent;
2064         workob.track= ob->track;
2065
2066         workob.trackflag= ob->trackflag;
2067         workob.upflag= ob->upflag;
2068         
2069         workob.partype= ob->partype;
2070         workob.par1= ob->par1;
2071         workob.par2= ob->par2;
2072         workob.par3= ob->par3;
2073
2074         workob.constraints.first = ob->constraints.first;
2075         workob.constraints.last = ob->constraints.last;
2076
2077         strcpy(workob.parsubstr, ob->parsubstr); 
2078
2079         where_is_object(&workob);
2080 }
2081
2082 BoundBox *unit_boundbox()
2083 {
2084         BoundBox *bb;
2085         float min[3] = {-1,-1,-1}, max[3] = {-1,-1,-1};
2086
2087         bb= MEM_callocN(sizeof(BoundBox), "bb");
2088         boundbox_set_from_min_max(bb, min, max);
2089         
2090         return bb;
2091 }
2092
2093 void boundbox_set_from_min_max(BoundBox *bb, float min[3], float max[3])
2094 {
2095         bb->vec[0][0]=bb->vec[1][0]=bb->vec[2][0]=bb->vec[3][0]= min[0];
2096         bb->vec[4][0]=bb->vec[5][0]=bb->vec[6][0]=bb->vec[7][0]= max[0];
2097         
2098         bb->vec[0][1]=bb->vec[1][1]=bb->vec[4][1]=bb->vec[5][1]= min[1];
2099         bb->vec[2][1]=bb->vec[3][1]=bb->vec[6][1]=bb->vec[7][1]= max[1];
2100
2101         bb->vec[0][2]=bb->vec[3][2]=bb->vec[4][2]=bb->vec[7][2]= min[2];
2102         bb->vec[1][2]=bb->vec[2][2]=bb->vec[5][2]=bb->vec[6][2]= max[2];
2103 }
2104
2105 BoundBox *object_get_boundbox(Object *ob)
2106 {
2107         BoundBox *bb= NULL;
2108         
2109         if(ob->type==OB_MESH) {
2110                 bb = mesh_get_bb(ob);
2111         }
2112         else if ELEM3(ob->type, OB_CURVE, OB_SURF, OB_FONT) {
2113                 bb= ( (Curve *)ob->data )->bb;
2114         }
2115         else if(ob->type==OB_MBALL) {
2116                 bb= ob->bb;
2117         }
2118         return bb;
2119 }
2120
2121 /* used to temporally disable/enable boundbox */
2122 void object_boundbox_flag(Object *ob, int flag, int set)
2123 {
2124         BoundBox *bb= object_get_boundbox(ob);
2125         if(bb) {
2126                 if(set) bb->flag |= flag;
2127                 else bb->flag &= ~flag;
2128         }
2129 }
2130
2131 void minmax_object(Object *ob, float *min, float *max)
2132 {
2133         BoundBox bb;
2134         Mesh *me;
2135         Curve *cu;
2136         float vec[3];
2137         int a;
2138         
2139         switch(ob->type) {
2140                 
2141         case OB_CURVE:
2142         case OB_FONT:
2143         case OB_SURF:
2144                 cu= ob->data;
2145                 
2146                 if(cu->bb==NULL) tex_space_curve(cu);
2147                 bb= *(cu->bb);
2148                 
2149                 for(a=0; a<8; a++) {
2150                         Mat4MulVecfl(ob->obmat, bb.vec[a]);
2151                         DO_MINMAX(bb.vec[a], min, max);
2152                 }
2153                 break;
2154         case OB_ARMATURE:
2155                 if(ob->pose) {
2156                         bPoseChannel *pchan;
2157                         for(pchan= ob->pose->chanbase.first; pchan; pchan= pchan->next) {
2158                                 VECCOPY(vec, pchan->pose_head);
2159                                 Mat4MulVecfl(ob->obmat, vec);
2160                                 DO_MINMAX(vec, min, max);
2161                                 VECCOPY(vec, pchan->pose_tail);
2162                                 Mat4MulVecfl(ob->obmat, vec);
2163                                 DO_MINMAX(vec, min, max);
2164                         }
2165                         break;
2166                 }
2167                 /* no break, get_mesh will give NULL and it passes on to default */
2168         case OB_MESH:
2169                 me= get_mesh(ob);
2170                 
2171                 if(me) {
2172                         bb = *mesh_get_bb(ob);
2173                         
2174                         for(a=0; a<8; a++) {
2175                                 Mat4MulVecfl(ob->obmat, bb.vec[a]);
2176                                 DO_MINMAX(bb.vec[a], min, max);
2177                         }
2178                 }
2179                 if(min[0] < max[0] ) break;
2180                 
2181                 /* else here no break!!!, mesh can be zero sized */
2182                 
2183         default:
2184                 DO_MINMAX(ob->obmat[3], min, max);
2185
2186                 VECCOPY(vec, ob->obmat[3]);
2187                 VecAddf(vec, vec, ob->size);
2188                 DO_MINMAX(vec, min, max);
2189
2190                 VECCOPY(vec, ob->obmat[3]);
2191                 VecSubf(vec, vec, ob->size);
2192                 DO_MINMAX(vec, min, max);
2193                 break;
2194         }
2195 }
2196
2197 /* TODO - use dupli objects bounding boxes */
2198 void minmax_object_duplis(Object *ob, float *min, float *max)
2199 {
2200         if ((ob->transflag & OB_DUPLI)==0) {
2201                 return;
2202         } else {
2203                 ListBase *lb;
2204                 DupliObject *dob;
2205                 
2206                 lb= object_duplilist(G.scene, ob);
2207                 for(dob= lb->first; dob; dob= dob->next) {
2208                         if(dob->no_draw);
2209                         else {
2210                                 /* should really use bound box of dup object */
2211                                 DO_MINMAX(dob->mat[3], min, max);
2212                         }
2213                 }
2214                 free_object_duplilist(lb);      /* does restore */
2215         }
2216 }
2217
2218
2219 /* proxy rule: lib_object->proxy_from == the one we borrow from, only set temporal and cleared here */
2220 /*           local_object->proxy      == pointer to library object, saved in files and read */
2221
2222 /* function below is polluted with proxy exceptions, cleanup will follow! */
2223
2224 /* the main object update call, for object matrix, constraints, keys and displist (modifiers) */
2225 /* requires flags to be set! */
2226 void object_handle_update(Object *ob)
2227 {
2228         if(ob->recalc & OB_RECALC) {
2229                 
2230                 if(ob->recalc & OB_RECALC_OB) {
2231
2232                         // printf("recalcob %s\n", ob->id.name+2);
2233                         
2234                         /* handle proxy copy for target */
2235                         if(ob->id.lib && ob->proxy_from) {
2236                                 // printf("ob proxy copy, lib ob %s proxy %s\n", ob->id.name, ob->proxy_from->id.name);
2237                                 if(ob->proxy_from->proxy_group) {/* transform proxy into group space */
2238                                         Object *obg= ob->proxy_from->proxy_group;
2239                                         Mat4Invert(obg->imat, obg->obmat);
2240                                         Mat4MulMat4(ob->obmat, ob->proxy_from->obmat, obg->imat);
2241                                 }
2242                                 else
2243                                         Mat4CpyMat4(ob->obmat, ob->proxy_from->obmat);
2244                         }
2245                         else
2246                                 where_is_object(ob);
2247                         if (G.f & G_DOSCRIPTLINKS) BPY_do_pyscript((ID *)ob, SCRIPT_OBJECTUPDATE);
2248                 }
2249                 
2250                 if(ob->recalc & OB_RECALC_DATA) {
2251                         
2252                         // printf("recalcdata %s\n", ob->id.name+2);
2253                         
2254                         /* includes all keys and modifiers */
2255                         if(ob->type==OB_MESH) {
2256                                 makeDerivedMesh(ob, get_viewedit_datamask());
2257                         }
2258                         else if(ob->type==OB_MBALL) {
2259                                 makeDispListMBall(ob);
2260                         } 
2261                         else if(ELEM3(ob->type, OB_CURVE, OB_SURF, OB_FONT)) {
2262                                 makeDispListCurveTypes(ob, 0);
2263                         }
2264                         else if(ob->type==OB_LATTICE) {
2265                                 lattice_calc_modifiers(ob);
2266                         }
2267                         else if(ob->type==OB_CAMERA) {
2268                                 Camera *cam = (Camera *)ob->data;
2269                                 calc_ipo(cam->ipo, frame_to_float(G.scene->r.cfra));
2270                                 execute_ipo(&cam->id, cam->ipo);
2271                         }
2272                         else if(ob->type==OB_LAMP) {
2273                                 Lamp *la = (Lamp *)ob->data;
2274                                 calc_ipo(la->ipo, frame_to_float(G.scene->r.cfra));
2275                                 execute_ipo(&la->id, la->ipo);
2276                         }
2277                         else if(ob->type==OB_ARMATURE) {
2278                                 /* this happens for reading old files and to match library armatures with poses */
2279                                 if(ob->pose==NULL || (ob->pose->flag & POSE_RECALC))
2280                                         armature_rebuild_pose(ob, ob->data);
2281                                 
2282                                 if(ob->id.lib && ob->proxy_from) {
2283                                         copy_pose_result(ob->pose, ob->proxy_from->pose);
2284                                         // printf("pose proxy copy, lib ob %s proxy %s\n", ob->id.name, ob->proxy_from->id.name);
2285                                 }
2286                                 else {
2287                                         do_all_pose_actions(ob);
2288                                         where_is_pose(ob);
2289                                 }
2290                         }
2291
2292                         if(ob->particlesystem.first) {
2293                                 ParticleSystem *tpsys, *psys;
2294                                 DerivedMesh *dm;
2295                                 
2296                                 psys= ob->particlesystem.first;
2297                                 while(psys) {
2298                                         if(psys_check_enabled(ob, psys)) {
2299                                                 particle_system_update(ob, psys);
2300                                                 psys= psys->next;
2301                                         }
2302                                         else if(psys->flag & PSYS_DELETE) {
2303                                                 tpsys=psys->next;
2304                                                 BLI_remlink(&ob->particlesystem, psys);
2305                                                 psys_free(ob,psys);
2306                                                 psys= tpsys;
2307                                         }
2308                                         else
2309                                                 psys= psys->next;
2310                                 }
2311
2312                                 if(G.rendering && ob->transflag & OB_DUPLIPARTS) {
2313                                         /* this is to make sure we get render level duplis in groups:
2314                                          * the derivedmesh must be created before init_render_mesh,
2315                                          * since object_duplilist does dupliparticles before that */
2316                                         dm = mesh_create_derived_render(ob, CD_MASK_BAREMESH|CD_MASK_MTFACE|CD_MASK_MCOL);
2317                                         dm->release(dm);
2318
2319                                         for(psys=ob->particlesystem.first; psys; psys=psys->next)
2320                                                 psys_get_modifier(ob, psys)->flag &= ~eParticleSystemFlag_psys_updated;
2321                                 }
2322                         }
2323                         if (G.f & G_DOSCRIPTLINKS) BPY_do_pyscript((ID *)ob, SCRIPT_OBDATAUPDATE);
2324                 }
2325
2326                 /* the no-group proxy case, we call update */
2327                 if(ob->proxy && ob->proxy_group==NULL) {
2328                         /* set pointer in library proxy target, for copying, but restore it */
2329                         ob->proxy->proxy_from= ob;
2330                         // printf("call update, lib ob %s proxy %s\n", ob->proxy->id.name, ob->id.name);
2331                         object_handle_update(ob->proxy);
2332                 }
2333         
2334                 ob->recalc &= ~OB_RECALC;
2335         }
2336
2337         /* the case when this is a group proxy, object_update is called in group.c */
2338         if(ob->proxy) {
2339                 ob->proxy->proxy_from= ob;
2340                 // printf("set proxy pointer for later group stuff %s\n", ob->id.name);
2341         }
2342 }
2343
2344 float give_timeoffset(Object *ob) {
2345         if ((ob->ipoflag & OB_OFFS_PARENTADD) && ob->parent) {
2346                 return ob->sf + give_timeoffset(ob->parent);
2347         } else {
2348                 return ob->sf;
2349         }
2350 }
2351
2352 int give_obdata_texspace(Object *ob, int **texflag, float **loc, float **size, float **rot) {
2353         
2354         if (ob->data==NULL)
2355                 return 0;
2356         
2357         switch (GS(((ID *)ob->data)->name)) {
2358         case ID_ME:
2359         {
2360                 Mesh *me= ob->data;
2361                 if (texflag)    *texflag = &me->texflag;
2362                 if (loc)                *loc = me->loc;
2363                 if (size)               *size = me->size;
2364                 if (rot)                *rot = me->rot;
2365                 break;
2366         }
2367         case ID_CU:
2368         {
2369                 Curve *cu= ob->data;
2370                 if (texflag)    *texflag = &cu->texflag;
2371                 if (loc)                *loc = cu->loc;
2372                 if (size)               *size = cu->size;
2373                 if (rot)                *rot = cu->rot;
2374                 break;
2375         }
2376         case ID_MB:
2377         {
2378                 MetaBall *mb= ob->data;
2379                 if (texflag)    *texflag = &mb->texflag;
2380                 if (loc)                *loc = mb->loc;
2381                 if (size)               *size = mb->size;
2382                 if (rot)                *rot = mb->rot;
2383                 break;
2384         }
2385         default:
2386                 return 0;
2387         }
2388         return 1;
2389 }
2390
2391 /*
2392  * Test a bounding box for ray intersection
2393  * assumes the ray is already local to the boundbox space
2394  */
2395 int ray_hit_boundbox(struct BoundBox *bb, float ray_start[3], float ray_normal[3])
2396 {
2397         static int triangle_indexes[12][3] = {{0, 1, 2}, {0, 2, 3},
2398                                                                                   {3, 2, 6}, {3, 6, 7},
2399                                                                                   {1, 2, 6}, {1, 6, 5}, 
2400                                                                                   {5, 6, 7}, {4, 5, 7},
2401                                                                                   {0, 3, 7}, {0, 4, 7},
2402                                                                                   {0, 1, 5}, {0, 4, 5}};
2403         int result = 0;
2404         int i;
2405         
2406         for (i = 0; i < 12 && result == 0; i++)
2407         {
2408                 float lambda;
2409                 int v1, v2, v3;
2410                 v1 = triangle_indexes[i][0];
2411                 v2 = triangle_indexes[i][1];
2412                 v3 = triangle_indexes[i][2];
2413                 result = RayIntersectsTriangle(ray_start, ray_normal, bb->vec[v1], bb->vec[v2], bb->vec[v3], &lambda, NULL);
2414         }
2415         
2416         return result;
2417 }