e63d6047cc63d55afa005b089227a7ce2d5aefe1
[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->fluidsimSettings) fluidsimSettingsFree(ob->fluidsimSettings);
273         if(ob->gpulamp.first) GPU_lamp_free(ob);
274 }
275
276 static void unlink_object__unlinkModifierLinks(void *userData, Object *ob, Object **obpoin)
277 {
278         Object *unlinkOb = userData;
279
280         if (*obpoin==unlinkOb) {
281                 *obpoin = NULL;
282                 ob->recalc |= OB_RECALC;
283         }
284 }
285 void unlink_object(Object *ob)
286 {
287         Object *obt;
288         Material *mat;
289         World *wrld;
290         bScreen *sc;
291         Scene *sce;
292         Curve *cu;
293         Tex *tex;
294         Ipo *ipo;
295         Group *group;
296         Camera *camera;
297         bConstraint *con;
298         bActionStrip *strip;
299         ModifierData *md;
300         int a;
301         
302         unlink_controllers(&ob->controllers);
303         unlink_actuators(&ob->actuators);
304         
305         /* check all objects: parents en bevels and fields, also from libraries */
306         obt= G.main->object.first;
307         while(obt) {
308                 if(obt->proxy==ob)
309                         obt->proxy= NULL;
310                 if(obt->proxy_from==ob) {
311                         obt->proxy_from= NULL;
312                         obt->recalc |= OB_RECALC_OB;
313                 }
314                 if(obt->proxy_group==ob)
315                         obt->proxy_group= NULL;
316                 
317                 if(obt->parent==ob) {
318                         obt->parent= NULL;
319                         obt->recalc |= OB_RECALC;
320                 }
321                 
322                 if(obt->track==ob) {
323                         obt->track= NULL;
324                         obt->recalc |= OB_RECALC_OB;
325                 }
326                 
327                 modifiers_foreachObjectLink(obt, unlink_object__unlinkModifierLinks, ob);
328                 
329                 if ELEM(obt->type, OB_CURVE, OB_FONT) {
330                         cu= obt->data;
331
332                         if(cu->bevobj==ob) {
333                                 cu->bevobj= NULL;
334                                 obt->recalc |= OB_RECALC;
335                         }
336                         if(cu->taperobj==ob) {
337                                 cu->taperobj= NULL;
338                                 obt->recalc |= OB_RECALC;
339                         }
340                         if(cu->textoncurve==ob) {
341                                 cu->textoncurve= NULL;
342                                 obt->recalc |= OB_RECALC;
343                         }
344                 }
345                 else if(obt->type==OB_ARMATURE && obt->pose) {
346                         bPoseChannel *pchan;
347                         for(pchan= obt->pose->chanbase.first; pchan; pchan= pchan->next) {
348                                 for (con = pchan->constraints.first; con; con=con->next) {
349                                         bConstraintTypeInfo *cti= constraint_get_typeinfo(con);
350                                         ListBase targets = {NULL, NULL};
351                                         bConstraintTarget *ct;
352                                         
353                                         if (cti && cti->get_constraint_targets) {
354                                                 cti->get_constraint_targets(con, &targets);
355                                                 
356                                                 for (ct= targets.first; ct; ct= ct->next) {
357                                                         if (ct->tar == ob) {
358                                                                 ct->tar = NULL;
359                                                                 strcpy(ct->subtarget, "");
360                                                                 obt->recalc |= OB_RECALC_DATA;
361                                                         }
362                                                 }
363                                                 
364                                                 if (cti->flush_constraint_targets)
365                                                         cti->flush_constraint_targets(con, &targets, 0);
366                                         }
367                                 }
368                                 if(pchan->custom==ob)
369                                         pchan->custom= NULL;
370                         }
371                 }
372                 
373                 sca_remove_ob_poin(obt, ob);
374                 
375                 for (con = obt->constraints.first; con; con=con->next) {
376                         bConstraintTypeInfo *cti= constraint_get_typeinfo(con);
377                         ListBase targets = {NULL, NULL};
378                         bConstraintTarget *ct;
379                         
380                         if (cti && cti->get_constraint_targets) {
381                                 cti->get_constraint_targets(con, &targets);
382                                 
383                                 for (ct= targets.first; ct; ct= ct->next) {
384                                         if (ct->tar == ob) {
385                                                 ct->tar = NULL;
386                                                 strcpy(ct->subtarget, "");
387                                                 obt->recalc |= OB_RECALC_DATA;
388                                         }
389                                 }
390                                 
391                                 if (cti->flush_constraint_targets)
392                                         cti->flush_constraint_targets(con, &targets, 0);
393                         }
394                 }
395                 
396                 /* object is deflector or field */
397                 if(ob->pd) {
398                         if(obt->soft)
399                                 obt->recalc |= OB_RECALC_DATA;
400
401                         /* cloth */
402                         for(md=obt->modifiers.first; md; md=md->next)
403                                 if(md->type == eModifierType_Cloth)
404                                         obt->recalc |= OB_RECALC_DATA;
405                 }
406                 
407                 /* strips */
408                 for(strip= obt->nlastrips.first; strip; strip= strip->next) {
409                         if(strip->object==ob)
410                                 strip->object= NULL;
411                         
412                         if(strip->modifiers.first) {
413                                 bActionModifier *amod;
414                                 for(amod= strip->modifiers.first; amod; amod= amod->next)
415                                         if(amod->ob==ob)
416                                                 amod->ob= NULL;
417                         }
418                 }
419
420                 /* particle systems */
421                 if(obt->particlesystem.first) {
422                         ParticleSystem *tpsys= obt->particlesystem.first;
423                         for(; tpsys; tpsys=tpsys->next) {
424                                 if(tpsys->keyed_ob==ob) {
425                                         ParticleSystem *psys= BLI_findlink(&ob->particlesystem,tpsys->keyed_psys-1);
426
427                                         if(psys && psys->keyed_ob) {
428                                                 tpsys->keyed_ob= psys->keyed_ob;
429                                                 tpsys->keyed_psys= psys->keyed_psys;
430                                         }
431                                         else
432                                                 tpsys->keyed_ob= NULL;
433
434                                         obt->recalc |= OB_RECALC_DATA;
435                                 }
436
437                                 if(tpsys->target_ob==ob) {
438                                         tpsys->target_ob= NULL;
439                                         obt->recalc |= OB_RECALC_DATA;
440                                 }
441
442                                 if(tpsys->part->dup_ob==ob)
443                                         tpsys->part->dup_ob= NULL;
444
445                                 if(tpsys->part->flag&PART_STICKY) {
446                                         ParticleData *pa;
447                                         int p;
448
449                                         for(p=0,pa=tpsys->particles; p<tpsys->totpart; p++,pa++) {
450                                                 if(pa->stick_ob==ob) {
451                                                         pa->stick_ob= 0;
452                                                         pa->flag &= ~PARS_STICKY;
453                                                 }
454                                         }
455                                 }
456                         }
457                         if(ob->pd)
458                                 obt->recalc |= OB_RECALC_DATA;
459                 }
460
461                 obt= obt->id.next;
462         }
463         
464         /* materials */
465         mat= G.main->mat.first;
466         while(mat) {
467         
468                 for(a=0; a<MAX_MTEX; a++) {
469                         if(mat->mtex[a] && ob==mat->mtex[a]->object) {
470                                 /* actually, test for lib here... to do */
471                                 mat->mtex[a]->object= NULL;
472                         }
473                 }
474
475                 mat= mat->id.next;
476         }
477         
478         /* textures */
479         tex= G.main->tex.first;
480         while(tex) {
481                 if(tex->env) {
482                         if(tex->env->object == ob) tex->env->object= NULL;
483                 }
484                 tex= tex->id.next;
485         }
486         
487         /* mballs */
488         if(ob->type==OB_MBALL) {
489                 obt= find_basis_mball(ob);
490                 if(obt) freedisplist(&obt->disp);
491         }
492         
493         /* worlds */
494         wrld= G.main->world.first;
495         while(wrld) {
496                 if(wrld->id.lib==NULL) {
497                         for(a=0; a<MAX_MTEX; a++) {
498                                 if(wrld->mtex[a] && ob==wrld->mtex[a]->object)
499                                         wrld->mtex[a]->object= NULL;
500                         }
501                 }
502                 
503                 wrld= wrld->id.next;
504         }
505                 
506         /* scenes */
507         sce= G.main->scene.first;
508         while(sce) {
509                 if(sce->id.lib==NULL) {
510                         if(sce->camera==ob) sce->camera= NULL;
511                 }
512                 sce= sce->id.next;
513         }
514         /* ipos */
515         ipo= G.main->ipo.first;
516         while(ipo) {
517                 if(ipo->id.lib==NULL) {
518                         IpoCurve *icu;
519                         for(icu= ipo->curve.first; icu; icu= icu->next) {
520                                 if(icu->driver && icu->driver->ob==ob)
521                                         icu->driver->ob= NULL;
522                         }
523                 }
524                 ipo= ipo->id.next;
525         }
526         
527         /* screens */
528         sc= G.main->screen.first;
529         while(sc) {
530                 ScrArea *sa= sc->areabase.first;
531                 while(sa) {
532                         SpaceLink *sl;
533
534                         for (sl= sa->spacedata.first; sl; sl= sl->next) {
535                                 if(sl->spacetype==SPACE_VIEW3D) {
536                                         View3D *v3d= (View3D*) sl;
537
538                                         if(v3d->camera==ob) {
539                                                 v3d->camera= NULL;
540                                                 if(v3d->persp==V3D_CAMOB) v3d->persp= V3D_PERSP;
541                                         }
542                                         if(v3d->localvd && v3d->localvd->camera==ob ) {
543                                                 v3d->localvd->camera= NULL;
544                                                 if(v3d->localvd->persp==V3D_CAMOB) v3d->localvd->persp= V3D_PERSP;
545                                         }
546                                 }
547                                 else if(sl->spacetype==SPACE_IPO) {
548                                         SpaceIpo *sipo= (SpaceIpo *)sl;
549                                         if(sipo->from == (ID *)ob) sipo->from= NULL;
550                                 }
551                                 else if(sl->spacetype==SPACE_OOPS) {
552                                         SpaceOops *so= (SpaceOops *)sl;
553                                         Oops *oops;
554
555                                         oops= so->oops.first;
556                                         while(oops) {
557                                                 if(oops->id==(ID *)ob) oops->id= NULL;
558                                                 oops= oops->next;
559                                         }
560                                         if(so->treestore) {
561                                                 TreeStoreElem *tselem= so->treestore->data;
562                                                 int a;
563                                                 for(a=0; a<so->treestore->usedelem; a++, tselem++) {
564                                                         if(tselem->id==(ID *)ob) tselem->id= NULL;
565                                                 }
566                                         }
567                                         so->lockpoin= NULL;
568                                 }
569                         }
570
571                         sa= sa->next;
572                 }
573                 sc= sc->id.next;
574         }
575
576         /* groups */
577         group= G.main->group.first;
578         while(group) {
579                 rem_from_group(group, ob);
580                 group= group->id.next;
581         }
582         
583         /* cameras */
584         camera= G.main->camera.first;
585         while(camera) {
586                 if (camera->dof_ob==ob) {
587                         camera->dof_ob = NULL;
588                 }
589                 camera= camera->id.next;
590         }
591 }
592
593 int exist_object(Object *obtest)
594 {
595         Object *ob;
596         
597         if(obtest==NULL) return 0;
598         
599         ob= G.main->object.first;
600         while(ob) {
601                 if(ob==obtest) return 1;
602                 ob= ob->id.next;
603         }
604         return 0;
605 }
606
607 void *add_camera(char *name)
608 {
609         Camera *cam;
610         
611         cam=  alloc_libblock(&G.main->camera, ID_CA, name);
612
613         cam->lens= 35.0f;
614         cam->angle= 49.14f;
615         cam->clipsta= 0.1f;
616         cam->clipend= 100.0f;
617         cam->drawsize= 0.5f;
618         cam->ortho_scale= 6.0;
619         cam->flag |= CAM_SHOWTITLESAFE;
620         cam->passepartalpha = 0.2f;
621         
622         return cam;
623 }
624
625 Camera *copy_camera(Camera *cam)
626 {
627         Camera *camn;
628         
629         camn= copy_libblock(cam);
630         id_us_plus((ID *)camn->ipo);
631
632         BPY_copy_scriptlink(&camn->scriptlink);
633         
634         return camn;
635 }
636
637
638
639 void make_local_camera(Camera *cam)
640 {
641         Object *ob;
642         Camera *camn;
643         int local=0, lib=0;
644
645         /* - only lib users: do nothing
646             * - only local users: set flag
647             * - mixed: make copy
648             */
649         
650         if(cam->id.lib==0) return;
651         if(cam->id.us==1) {
652                 cam->id.lib= 0;
653                 cam->id.flag= LIB_LOCAL;
654                 new_id(0, (ID *)cam, 0);
655                 return;
656         }
657         
658         ob= G.main->object.first;
659         while(ob) {
660                 if(ob->data==cam) {
661                         if(ob->id.lib) lib= 1;
662                         else local= 1;
663                 }
664                 ob= ob->id.next;
665         }
666         
667         if(local && lib==0) {
668                 cam->id.lib= 0;
669                 cam->id.flag= LIB_LOCAL;
670                 new_id(0, (ID *)cam, 0);
671         }
672         else if(local && lib) {
673                 camn= copy_camera(cam);
674                 camn->id.us= 0;
675                 
676                 ob= G.main->object.first;
677                 while(ob) {
678                         if(ob->data==cam) {
679                                 
680                                 if(ob->id.lib==0) {
681                                         ob->data= camn;
682                                         camn->id.us++;
683                                         cam->id.us--;
684                                 }
685                         }
686                         ob= ob->id.next;
687                 }
688         }
689 }
690
691 /* get the camera's dof value, takes the dof object into account */
692 float dof_camera(Object *ob)
693 {
694         Camera *cam = (Camera *)ob->data; 
695         if (ob->type != OB_CAMERA)
696                 return 0.0;
697         if (cam->dof_ob) {      
698                 /* too simple, better to return the distance on the view axis only
699                  * return VecLenf(ob->obmat[3], cam->dof_ob->obmat[3]); */
700                 float mat[4][4], obmat[4][4];
701                 
702                 Mat4CpyMat4(obmat, ob->obmat);
703                 Mat4Ortho(obmat);
704                 Mat4Invert(ob->imat, obmat);
705                 Mat4MulMat4(mat, cam->dof_ob->obmat, ob->imat);
706                 return fabs(mat[3][2]);
707         }
708         return cam->YF_dofdist;
709 }
710
711 void *add_lamp(char *name)
712 {
713         Lamp *la;
714         
715         la=  alloc_libblock(&G.main->lamp, ID_LA, name);
716         
717         la->r= la->g= la->b= la->k= 1.0;
718         la->haint= la->energy= 1.0;
719         la->dist= 20.0;
720         la->spotsize= 45.0;
721         la->spotblend= 0.15;
722         la->att2= 1.0;
723         la->mode= LA_SHAD_BUF;
724         la->bufsize= 512;
725         la->clipsta= 0.5;
726         la->clipend= 40.0;
727         la->shadspotsize= 45.0;
728         la->samp= 3;
729         la->bias= 1.0;
730         la->soft= 3.0;
731         la->ray_samp= la->ray_sampy= la->ray_sampz= 1; 
732         la->area_size=la->area_sizey=la->area_sizez= 1.0; 
733         la->buffers= 1;
734         la->buftype= LA_SHADBUF_HALFWAY;
735         la->ray_samp_method = LA_SAMP_HALTON;
736         la->adapt_thresh = 0.001;
737         la->preview=NULL;
738         la->falloff_type = LA_FALLOFF_INVLINEAR;
739         la->curfalloff = curvemapping_add(1, 0.0f, 1.0f, 1.0f, 0.0f);
740         la->sun_effect_type = 0;
741         la->horizon_brightness = 1.0;
742         la->spread = 1.0;
743         la->sun_brightness = 1.0;
744         la->sun_size = 1.0;
745         la->backscattered_light = 1.0;
746         la->atm_turbidity = 2.0;
747         la->atm_inscattering_factor = 1.0;
748         la->atm_extinction_factor = 1.0;
749         la->atm_distance_factor = 1.0;
750         la->sun_intensity = 1.0;
751         curvemapping_initialize(la->curfalloff);
752         return la;
753 }
754
755 Lamp *copy_lamp(Lamp *la)
756 {
757         Lamp *lan;
758         int a;
759         
760         lan= copy_libblock(la);
761
762         for(a=0; a<MAX_MTEX; a++) {
763                 if(lan->mtex[a]) {
764                         lan->mtex[a]= MEM_mallocN(sizeof(MTex), "copylamptex");
765                         memcpy(lan->mtex[a], la->mtex[a], sizeof(MTex));
766                         id_us_plus((ID *)lan->mtex[a]->tex);
767                 }
768         }
769         
770         lan->curfalloff = curvemapping_copy(la->curfalloff);
771         
772         id_us_plus((ID *)lan->ipo);
773
774         if (la->preview) lan->preview = BKE_previewimg_copy(la->preview);
775
776         BPY_copy_scriptlink(&la->scriptlink);
777         
778         return lan;
779 }
780
781 void make_local_lamp(Lamp *la)
782 {
783         Object *ob;
784         Lamp *lan;
785         int local=0, lib=0;
786
787         /* - only lib users: do nothing
788             * - only local users: set flag
789             * - mixed: make copy
790             */
791         
792         if(la->id.lib==0) return;
793         if(la->id.us==1) {
794                 la->id.lib= 0;
795                 la->id.flag= LIB_LOCAL;
796                 new_id(0, (ID *)la, 0);
797                 return;
798         }
799         
800         ob= G.main->object.first;
801         while(ob) {
802                 if(ob->data==la) {
803                         if(ob->id.lib) lib= 1;
804                         else local= 1;
805                 }
806                 ob= ob->id.next;
807         }
808         
809         if(local && lib==0) {
810                 la->id.lib= 0;
811                 la->id.flag= LIB_LOCAL;
812                 new_id(0, (ID *)la, 0);
813         }
814         else if(local && lib) {
815                 lan= copy_lamp(la);
816                 lan->id.us= 0;
817                 
818                 ob= G.main->object.first;
819                 while(ob) {
820                         if(ob->data==la) {
821                                 
822                                 if(ob->id.lib==0) {
823                                         ob->data= lan;
824                                         lan->id.us++;
825                                         la->id.us--;
826                                 }
827                         }
828                         ob= ob->id.next;
829                 }
830         }
831 }
832
833 void free_camera(Camera *ca)
834 {
835         BPY_free_scriptlink(&ca->scriptlink);
836 }
837
838 void free_lamp(Lamp *la)
839 {
840         MTex *mtex;
841         int a;
842
843         /* scriptlinks */
844                 
845         BPY_free_scriptlink(&la->scriptlink);
846
847         for(a=0; a<MAX_MTEX; a++) {
848                 mtex= la->mtex[a];
849                 if(mtex && mtex->tex) mtex->tex->id.us--;
850                 if(mtex) MEM_freeN(mtex);
851         }
852         la->ipo= 0;
853
854         curvemapping_free(la->curfalloff);
855         
856         BKE_previewimg_free(&la->preview);
857         BKE_icon_delete(&la->id);
858         la->id.icon_id = 0;
859 }
860
861 void *add_wave()
862 {
863         return 0;
864 }
865
866
867 /* *************************************************** */
868
869 static void *add_obdata_from_type(int type)
870 {
871         switch (type) {
872         case OB_MESH: G.totmesh++; return add_mesh("Mesh");
873         case OB_CURVE: G.totcurve++; return add_curve("Curve", OB_CURVE);
874         case OB_SURF: G.totcurve++; return add_curve("Surf", OB_SURF);
875         case OB_FONT: return add_curve("Text", OB_FONT);
876         case OB_MBALL: return add_mball("Meta");
877         case OB_CAMERA: return add_camera("Camera");
878         case OB_LAMP: G.totlamp++; return add_lamp("Lamp");
879         case OB_LATTICE: return add_lattice("Lattice");
880         case OB_WAVE: return add_wave();
881         case OB_ARMATURE: return add_armature("Armature");
882         case OB_EMPTY: return NULL;
883         default:
884                 printf("add_obdata_from_type: Internal error, bad type: %d\n", type);
885                 return NULL;
886         }
887 }
888
889 static char *get_obdata_defname(int type)
890 {
891         switch (type) {
892         case OB_MESH: return "Mesh";
893         case OB_CURVE: return "Curve";
894         case OB_SURF: return "Surf";
895         case OB_FONT: return "Font";
896         case OB_MBALL: return "Mball";
897         case OB_CAMERA: return "Camera";
898         case OB_LAMP: return "Lamp";
899         case OB_LATTICE: return "Lattice";
900         case OB_WAVE: return "Wave";
901         case OB_ARMATURE: return "Armature";
902         case OB_EMPTY: return "Empty";
903         default:
904                 printf("get_obdata_defname: Internal error, bad type: %d\n", type);
905                 return "Empty";
906         }
907 }
908
909 /* more general add: creates minimum required data, but without vertices etc. */
910 Object *add_only_object(int type, char *name)
911 {
912         Object *ob;
913
914         ob= alloc_libblock(&G.main->object, ID_OB, name);
915         G.totobj++;
916
917         /* default object vars */
918         ob->type= type;
919         /* ob->transflag= OB_QUAT; */
920
921 #if 0 /* not used yet */
922         QuatOne(ob->quat);
923         QuatOne(ob->dquat);
924 #endif 
925
926         ob->col[0]= ob->col[1]= ob->col[2]= 1.0;
927         ob->col[3]= 1.0;
928
929         ob->loc[0]= ob->loc[1]= ob->loc[2]= 0.0;
930         ob->rot[0]= ob->rot[1]= ob->rot[2]= 0.0;
931         ob->size[0]= ob->size[1]= ob->size[2]= 1.0;
932
933         Mat4One(ob->constinv);
934         Mat4One(ob->parentinv);
935         Mat4One(ob->obmat);
936         ob->dt= OB_SHADED;
937         if(U.flag & USER_MAT_ON_OB) ob->colbits= -1;
938         ob->empty_drawtype= OB_ARROWS;
939         ob->empty_drawsize= 1.0;
940
941         if(type==OB_CAMERA || type==OB_LAMP) {
942                 ob->trackflag= OB_NEGZ;
943                 ob->upflag= OB_POSY;
944         }
945         else {
946                 ob->trackflag= OB_POSY;
947                 ob->upflag= OB_POSZ;
948         }
949         ob->ipoflag = OB_OFFS_OB+OB_OFFS_PARENT;
950         ob->ipowin= ID_OB;      /* the ipowin shown */
951         ob->dupon= 1; ob->dupoff= 0;
952         ob->dupsta= 1; ob->dupend= 100;
953         ob->dupfacesca = 1.0;
954
955         /* Game engine defaults*/
956         ob->mass= ob->inertia= 1.0f;
957         ob->formfactor= 0.4f;
958         ob->damping= 0.04f;
959         ob->rdamping= 0.1f;
960         ob->anisotropicFriction[0] = 1.0f;
961         ob->anisotropicFriction[1] = 1.0f;
962         ob->anisotropicFriction[2] = 1.0f;
963         ob->gameflag= OB_PROP|OB_PHYSICS;
964         ob->margin = 0.0;
965
966         /* NT fluid sim defaults */
967         ob->fluidsimFlag = 0;
968         ob->fluidsimSettings = NULL;
969
970         return ob;
971 }
972
973 /* general add: to G.scene, with layer from area and default name */
974 /* creates minimum required data, but without vertices etc. */
975 Object *add_object(int type)
976 {
977         Object *ob;
978         Base *base;
979         char name[32];
980
981         strcpy(name, get_obdata_defname(type));
982         ob = add_only_object(type, name);
983
984         ob->data= add_obdata_from_type(type);
985
986         ob->lay= G.scene->lay;
987
988         base= scene_add_base(G.scene, ob);
989         scene_select_base(G.scene, base);
990         ob->recalc |= OB_RECALC;
991
992         return ob;
993 }
994
995 void base_init_from_view3d(Base *base, View3D *v3d)
996 {
997         Object *ob= base->object;
998         
999         if (!v3d) {
1000                 /* no 3d view, this wont happen often */
1001                 base->lay = 1;
1002                 VECCOPY(ob->loc, G.scene->cursor);
1003                 
1004                 /* return now because v3d->viewquat isnt available */
1005                 return;
1006         } else if (v3d->localview) {
1007                 base->lay= ob->lay= v3d->layact + v3d->lay;
1008                 VECCOPY(ob->loc, v3d->cursor);
1009         } else {
1010                 base->lay= ob->lay= v3d->layact;
1011                 VECCOPY(ob->loc, G.scene->cursor);
1012         }
1013
1014         if (U.flag & USER_ADD_VIEWALIGNED) {
1015                 v3d->viewquat[0]= -v3d->viewquat[0];
1016
1017                 /* Quats arnt used yet */
1018                 /*if (ob->transflag & OB_QUAT) {
1019                         QUATCOPY(ob->quat, v3d->viewquat);
1020                 } else {*/
1021                         QuatToEul(v3d->viewquat, ob->rot);
1022                 /*}*/
1023                 v3d->viewquat[0]= -v3d->viewquat[0];
1024         }
1025 }
1026
1027 SoftBody *copy_softbody(SoftBody *sb)
1028 {
1029         SoftBody *sbn;
1030         
1031         if (sb==NULL) return(NULL);
1032         
1033         sbn= MEM_dupallocN(sb);
1034         sbn->totspring= sbn->totpoint= 0;
1035         sbn->bpoint= NULL;
1036         sbn->bspring= NULL;
1037         
1038         sbn->keys= NULL;
1039         sbn->totkey= sbn->totpointkey= 0;
1040         
1041         sbn->scratch= NULL;
1042
1043         sbn->pointcache= BKE_ptcache_copy(sb->pointcache);
1044
1045         return sbn;
1046 }
1047
1048 ParticleSystem *copy_particlesystem(ParticleSystem *psys)
1049 {
1050         ParticleSystem *psysn;
1051         ParticleData *pa;
1052         int a;
1053
1054         psysn= MEM_dupallocN(psys);
1055         psysn->particles= MEM_dupallocN(psys->particles);
1056         psysn->child= MEM_dupallocN(psys->child);
1057
1058         for(a=0, pa=psysn->particles; a<psysn->totpart; a++, pa++) {
1059                 if(pa->hair)
1060                         pa->hair= MEM_dupallocN(pa->hair);
1061                 if(pa->keys)
1062                         pa->keys= MEM_dupallocN(pa->keys);
1063         }
1064
1065         if(psys->soft) {
1066                 psysn->soft= copy_softbody(psys->soft);
1067                 psysn->soft->particles = psysn;
1068         }
1069         
1070         psysn->pathcache= NULL;
1071         psysn->childcache= NULL;
1072         psysn->edit= NULL;
1073         psysn->effectors.first= psysn->effectors.last= 0;
1074         
1075         psysn->pathcachebufs.first = psysn->pathcachebufs.last = NULL;
1076         psysn->childcachebufs.first = psysn->childcachebufs.last = NULL;
1077         psysn->reactevents.first = psysn->reactevents.last = NULL;
1078         psysn->renderdata = NULL;
1079         
1080         psysn->pointcache= BKE_ptcache_copy(psys->pointcache);
1081
1082         id_us_plus((ID *)psysn->part);
1083
1084         return psysn;
1085 }
1086
1087 void copy_object_particlesystems(Object *obn, Object *ob)
1088 {
1089         ParticleSystemModifierData *psmd;
1090         ParticleSystem *psys, *npsys;
1091         ModifierData *md;
1092
1093         obn->particlesystem.first= obn->particlesystem.last= NULL;
1094         for(psys=ob->particlesystem.first; psys; psys=psys->next) {
1095                 npsys= copy_particlesystem(psys);
1096
1097                 BLI_addtail(&obn->particlesystem, npsys);
1098
1099                 /* need to update particle modifiers too */
1100                 for(md=obn->modifiers.first; md; md=md->next) {
1101                         if(md->type==eModifierType_ParticleSystem) {
1102                                 psmd= (ParticleSystemModifierData*)md;
1103                                 if(psmd->psys==psys)
1104                                         psmd->psys= npsys;
1105                         }
1106                 }
1107         }
1108 }
1109
1110 void copy_object_softbody(Object *obn, Object *ob)
1111 {
1112         if(ob->soft)
1113                 obn->soft= copy_softbody(ob->soft);
1114 }
1115
1116 static void copy_object_pose(Object *obn, Object *ob)
1117 {
1118         bPoseChannel *chan;
1119         
1120         /* note: need to clear obn->pose pointer first, so that copy_pose works (otherwise there's a crash) */
1121         obn->pose= NULL;
1122         copy_pose(&obn->pose, ob->pose, 1);     /* 1 = copy constraints */
1123
1124         for (chan = obn->pose->chanbase.first; chan; chan=chan->next){
1125                 bConstraint *con;
1126                 
1127                 chan->flag &= ~(POSE_LOC|POSE_ROT|POSE_SIZE);
1128                 
1129                 for (con= chan->constraints.first; con; con= con->next) {
1130                         bConstraintTypeInfo *cti= constraint_get_typeinfo(con);
1131                         ListBase targets = {NULL, NULL};
1132                         bConstraintTarget *ct;
1133                         
1134                         if(con->ipo) {
1135                                 IpoCurve *icu;
1136                                 for(icu= con->ipo->curve.first; icu; icu= icu->next) {
1137                                         if(icu->driver && icu->driver->ob==ob)
1138                                                 icu->driver->ob= obn;
1139                                 }
1140                         }
1141                         
1142                         if (cti && cti->get_constraint_targets) {
1143                                 cti->get_constraint_targets(con, &targets);
1144                                 
1145                                 for (ct= targets.first; ct; ct= ct->next) {
1146                                         if (ct->tar == ob)
1147                                                 ct->tar = obn;
1148                                 }
1149                                 
1150                                 if (cti->flush_constraint_targets)
1151                                         cti->flush_constraint_targets(con, &targets, 0);
1152                         }
1153                 }
1154         }
1155 }
1156
1157 Object *copy_object(Object *ob)
1158 {
1159         Object *obn;
1160         ModifierData *md;
1161         int a;
1162
1163         obn= copy_libblock(ob);
1164         
1165         if(ob->totcol) {
1166                 obn->mat= MEM_dupallocN(ob->mat);
1167         }
1168         
1169         if(ob->bb) obn->bb= MEM_dupallocN(ob->bb);
1170         obn->path= NULL;
1171         obn->flag &= ~OB_FROMGROUP;
1172         
1173         obn->modifiers.first = obn->modifiers.last= NULL;
1174         
1175         for (md=ob->modifiers.first; md; md=md->next) {
1176                 ModifierData *nmd = modifier_new(md->type);
1177                 modifier_copyData(md, nmd);
1178                 BLI_addtail(&obn->modifiers, nmd);
1179         }
1180         
1181         BPY_copy_scriptlink(&ob->scriptlink);
1182         
1183         copy_properties(&obn->prop, &ob->prop);
1184         copy_sensors(&obn->sensors, &ob->sensors);
1185         copy_controllers(&obn->controllers, &ob->controllers);
1186         copy_actuators(&obn->actuators, &ob->actuators);
1187         
1188         if(ob->pose) {
1189                 copy_object_pose(obn, ob);
1190                 /* backwards compat... non-armatures can get poses in older files? */
1191                 if(ob->type==OB_ARMATURE)
1192                         armature_rebuild_pose(obn, obn->data);
1193         }
1194         copy_defgroups(&obn->defbase, &ob->defbase);
1195         copy_nlastrips(&obn->nlastrips, &ob->nlastrips);
1196         copy_constraints (&obn->constraints, &ob->constraints);
1197
1198         clone_constraint_channels (&obn->constraintChannels, &ob->constraintChannels);
1199
1200         /* increase user numbers */
1201         id_us_plus((ID *)obn->data);
1202         id_us_plus((ID *)obn->ipo);
1203         id_us_plus((ID *)obn->action);
1204         id_us_plus((ID *)obn->dup_group);
1205
1206         for(a=0; a<obn->totcol; a++) id_us_plus((ID *)obn->mat[a]);
1207         
1208         obn->disp.first= obn->disp.last= NULL;
1209         
1210         if(ob->pd){
1211                 obn->pd= MEM_dupallocN(ob->pd);
1212                 if(obn->pd->tex)
1213                         id_us_plus(&(obn->pd->tex->id));
1214         }
1215         obn->soft= copy_softbody(ob->soft);
1216
1217         /* NT copy fluid sim setting memory */
1218         if(obn->fluidsimSettings) {
1219                 obn->fluidsimSettings = fluidsimSettingsCopy(ob->fluidsimSettings);
1220                 /* copying might fail... */
1221                 if(obn->fluidsimSettings) {
1222                         obn->fluidsimSettings->orgMesh = (Mesh *)obn->data;
1223                 }
1224         }
1225
1226         copy_object_particlesystems(obn, ob);
1227         
1228         obn->derivedDeform = NULL;
1229         obn->derivedFinal = NULL;
1230
1231 #ifdef WITH_VERSE
1232         obn->vnode = NULL;
1233 #endif
1234
1235         obn->gpulamp.first = obn->gpulamp.last = NULL;
1236
1237         return obn;
1238 }
1239
1240 void expand_local_object(Object *ob)
1241 {
1242         bActionStrip *strip;
1243         ParticleSystem *psys;
1244         int a;
1245         
1246         id_lib_extern((ID *)ob->action);
1247         id_lib_extern((ID *)ob->ipo);
1248         id_lib_extern((ID *)ob->data);
1249         id_lib_extern((ID *)ob->dup_group);
1250         
1251         for(a=0; a<ob->totcol; a++) {
1252                 id_lib_extern((ID *)ob->mat[a]);
1253         }
1254         for (strip=ob->nlastrips.first; strip; strip=strip->next) {
1255                 id_lib_extern((ID *)strip->act);
1256         }
1257         for(psys=ob->particlesystem.first; psys; psys=psys->next)
1258                 id_lib_extern((ID *)psys->part);
1259 }
1260
1261 void make_local_object(Object *ob)
1262 {
1263         Object *obn;
1264         Scene *sce;
1265         Base *base;
1266         int local=0, lib=0;
1267
1268         /* - only lib users: do nothing
1269             * - only local users: set flag
1270             * - mixed: make copy
1271             */
1272         
1273         if(ob->id.lib==NULL) return;
1274         
1275         ob->proxy= ob->proxy_from= NULL;
1276         
1277         if(ob->id.us==1) {
1278                 ob->id.lib= NULL;
1279                 ob->id.flag= LIB_LOCAL;
1280                 new_id(0, (ID *)ob, 0);
1281
1282         }
1283         else {
1284                 sce= G.main->scene.first;
1285                 while(sce) {
1286                         base= sce->base.first;
1287                         while(base) {
1288                                 if(base->object==ob) {
1289                                         if(sce->id.lib) lib++;
1290                                         else local++;
1291                                         break;
1292                                 }
1293                                 base= base->next;
1294                         }
1295                         sce= sce->id.next;
1296                 }
1297                 
1298                 if(local && lib==0) {
1299                         ob->id.lib= 0;
1300                         ob->id.flag= LIB_LOCAL;
1301                         new_id(0, (ID *)ob, 0);
1302                 }
1303                 else if(local && lib) {
1304                         obn= copy_object(ob);
1305                         obn->id.us= 0;
1306                         
1307                         sce= G.main->scene.first;
1308                         while(sce) {
1309                                 if(sce->id.lib==0) {
1310                                         base= sce->base.first;
1311                                         while(base) {
1312                                                 if(base->object==ob) {
1313                                                         base->object= obn;
1314                                                         obn->id.us++;
1315                                                         ob->id.us--;
1316                                                 }
1317                                                 base= base->next;
1318                                         }
1319                                 }
1320                                 sce= sce->id.next;
1321                         }
1322                 }
1323         }
1324         
1325         expand_local_object(ob);
1326 }
1327
1328 /* *************** PROXY **************** */
1329
1330 /* when you make proxy, ensure the exposed layers are extern */
1331 void armature_set_id_extern(Object *ob)
1332 {
1333         bArmature *arm= ob->data;
1334         bPoseChannel *pchan;
1335         int lay= arm->layer_protected;
1336         
1337         for (pchan = ob->pose->chanbase.first; pchan; pchan=pchan->next) {
1338                 if(!(pchan->bone->layer & lay))
1339                         id_lib_extern((ID *)pchan->custom);
1340         }
1341                         
1342 }
1343
1344 /* proxy rule: lib_object->proxy_from == the one we borrow from, set temporally while object_update */
1345 /*             local_object->proxy == pointer to library object, saved in files and read */
1346 /*             local_object->proxy_group == pointer to group dupli-object, saved in files and read */
1347
1348 void object_make_proxy(Object *ob, Object *target, Object *gob)
1349 {
1350         /* paranoia checks */
1351         if(ob->id.lib || target->id.lib==NULL) {
1352                 printf("cannot make proxy\n");
1353                 return;
1354         }
1355         
1356         ob->proxy= target;
1357         ob->proxy_group= gob;
1358         id_lib_extern(&target->id);
1359         
1360         ob->recalc= target->recalc= OB_RECALC;
1361         
1362         /* copy transform */
1363         if(gob) {
1364                 VECCOPY(ob->loc, gob->loc);
1365                 VECCOPY(ob->rot, gob->rot);
1366                 VECCOPY(ob->size, gob->size);
1367                 
1368                 group_tag_recalc(gob->dup_group);
1369         }
1370         else {
1371                 VECCOPY(ob->loc, target->loc);
1372                 VECCOPY(ob->rot, target->rot);
1373                 VECCOPY(ob->size, target->size);
1374         }
1375         
1376         ob->parent= target->parent;     /* libdata */
1377         Mat4CpyMat4(ob->parentinv, target->parentinv);
1378         ob->ipo= target->ipo;           /* libdata */
1379         
1380         /* skip constraints, constraintchannels, nla? */
1381         
1382         /* set object type and link to data */
1383         ob->type= target->type;
1384         ob->data= target->data;
1385         id_us_plus((ID *)ob->data);             /* ensures lib data becomes LIB_EXTERN */
1386         
1387         /* copy material and index information */
1388         ob->actcol= ob->totcol= 0;
1389         if(ob->mat) MEM_freeN(ob->mat);
1390         ob->mat = NULL;
1391         if ((target->totcol) && (target->mat) && OB_SUPPORT_MATERIAL(ob)) {
1392                 int i;
1393                 ob->colbits = target->colbits;
1394                 
1395                 ob->actcol= target->actcol;
1396                 ob->totcol= target->totcol;
1397                 
1398                 ob->mat = MEM_dupallocN(target->mat);
1399                 for(i=0; i<target->totcol; i++) {
1400                         /* dont need to run test_object_materials since we know this object is new and not used elsewhere */
1401                         id_us_plus((ID *)ob->mat[i]); 
1402                 }
1403         }
1404         
1405         /* type conversions */
1406         if(target->type == OB_ARMATURE) {
1407                 copy_object_pose(ob, target);   /* data copy, object pointers in constraints */
1408                 rest_pose(ob->pose);                    /* clear all transforms in channels */
1409                 armature_rebuild_pose(ob, ob->data);    /* set all internal links */
1410                 
1411                 armature_set_id_extern(ob);
1412         }
1413 }
1414
1415
1416 /* *************** CALC ****************** */
1417
1418 /* there is also a timing calculation in drawobject() */
1419
1420 float bluroffs= 0.0f, fieldoffs= 0.0f;
1421 int no_speed_curve= 0;
1422
1423 /* ugly calls from render */
1424 void set_mblur_offs(float blur)
1425 {
1426         bluroffs= blur;
1427 }
1428
1429 void set_field_offs(float field)
1430 {
1431         fieldoffs= field;
1432 }
1433
1434 void disable_speed_curve(int val)
1435 {
1436         no_speed_curve= val;
1437 }
1438
1439 /* ob can be NULL */
1440 float bsystem_time(Object *ob, float cfra, float ofs)
1441 {
1442         /* returns float ( see frame_to_float in ipo.c) */
1443         
1444         /* bluroffs and fieldoffs are ugly globals that are set by render */
1445         cfra+= bluroffs+fieldoffs;
1446
1447         /* global time */
1448         cfra*= G.scene->r.framelen;     
1449         
1450         if (ob) {
1451                 if (no_speed_curve==0 && ob->ipo)
1452                         cfra= calc_ipo_time(ob->ipo, cfra);
1453                 
1454                 /* ofset frames */
1455                 if ((ob->ipoflag & OB_OFFS_PARENT) && (ob->partype & PARSLOW)==0) 
1456                         cfra-= give_timeoffset(ob);
1457         }
1458         
1459         cfra-= ofs;
1460
1461         return cfra;
1462 }
1463
1464 void object_to_mat3(Object *ob, float mat[][3]) /* no parent */
1465 {
1466         float smat[3][3], vec[3];
1467         float rmat[3][3];
1468         /*float q1[4];*/
1469         
1470         /* size */
1471         if(ob->ipo) {
1472                 vec[0]= ob->size[0]+ob->dsize[0];
1473                 vec[1]= ob->size[1]+ob->dsize[1];
1474                 vec[2]= ob->size[2]+ob->dsize[2];
1475                 SizeToMat3(vec, smat);
1476         }
1477         else {
1478                 SizeToMat3(ob->size, smat);
1479         }
1480
1481         /* rot */
1482         /* Quats arnt used yet */
1483         /*if(ob->transflag & OB_QUAT) {
1484                 if(ob->ipo) {
1485                         QuatMul(q1, ob->quat, ob->dquat);
1486                         QuatToMat3(q1, rmat);
1487                 }
1488                 else {
1489                         QuatToMat3(ob->quat, rmat);
1490                 }
1491         }
1492         else {*/
1493                 if(ob->ipo) {
1494                         vec[0]= ob->rot[0]+ob->drot[0];
1495                         vec[1]= ob->rot[1]+ob->drot[1];
1496                         vec[2]= ob->rot[2]+ob->drot[2];
1497                         EulToMat3(vec, rmat);
1498                 }
1499                 else {
1500                         EulToMat3(ob->rot, rmat);
1501                 }
1502         /*}*/
1503         Mat3MulMat3(mat, rmat, smat);
1504 }
1505
1506 void object_to_mat4(Object *ob, float mat[][4])
1507 {
1508         float tmat[3][3];
1509         
1510         object_to_mat3(ob, tmat);
1511         
1512         Mat4CpyMat3(mat, tmat);
1513         
1514         VECCOPY(mat[3], ob->loc);
1515         if(ob->ipo) {
1516                 mat[3][0]+= ob->dloc[0];
1517                 mat[3][1]+= ob->dloc[1];
1518                 mat[3][2]+= ob->dloc[2];
1519         }
1520 }
1521
1522 int enable_cu_speed= 1;
1523
1524 static void ob_parcurve(Object *ob, Object *par, float mat[][4])
1525 {
1526         Curve *cu;
1527         float q[4], vec[4], dir[3], quat[4], x1, ctime;
1528         float timeoffs = 0.0, sf_orig = 0.0;
1529         
1530         Mat4One(mat);
1531         
1532         cu= par->data;
1533         if(cu->path==NULL || cu->path->data==NULL) /* only happens on reload file, but violates depsgraph still... fix! */
1534                 makeDispListCurveTypes(par, 0);
1535         if(cu->path==NULL) return;
1536         
1537         /* exception, timeoffset is regarded as distance offset */
1538         if(cu->flag & CU_OFFS_PATHDIST) {
1539                 timeoffs = give_timeoffset(ob);
1540                 SWAP(float, sf_orig, ob->sf);
1541         }
1542         
1543         /* catch exceptions: feature for nla stride editing */
1544         if(ob->ipoflag & OB_DISABLE_PATH) {
1545                 ctime= 0.0f;
1546         }
1547         /* catch exceptions: curve paths used as a duplicator */
1548         else if(enable_cu_speed) {
1549                 ctime= bsystem_time(ob, (float)G.scene->r.cfra, 0.0);
1550                 
1551                 if(calc_ipo_spec(cu->ipo, CU_SPEED, &ctime)==0) {
1552                         ctime /= cu->pathlen;
1553                         CLAMP(ctime, 0.0, 1.0);
1554                 }
1555         }
1556         else {
1557                 ctime= G.scene->r.cfra - give_timeoffset(ob);
1558                 ctime /= cu->pathlen;
1559                 
1560                 CLAMP(ctime, 0.0, 1.0);
1561         }
1562         
1563         /* time calculus is correct, now apply distance offset */
1564         if(cu->flag & CU_OFFS_PATHDIST) {
1565                 ctime += timeoffs/cu->path->totdist;
1566
1567                 /* restore */
1568                 SWAP(float, sf_orig, ob->sf);
1569         }
1570         
1571         
1572         /* vec: 4 items! */
1573         if( where_on_path(par, ctime, vec, dir) ) {
1574
1575                 if(cu->flag & CU_FOLLOW) {
1576                         vectoquat(dir, ob->trackflag, ob->upflag, quat);
1577                         
1578                         /* the tilt */
1579                         Normalize(dir);
1580                         q[0]= (float)cos(0.5*vec[3]);
1581                         x1= (float)sin(0.5*vec[3]);
1582                         q[1]= -x1*dir[0];
1583                         q[2]= -x1*dir[1];
1584                         q[3]= -x1*dir[2];
1585                         QuatMul(quat, q, quat);
1586                         
1587                         QuatToMat4(quat, mat);
1588                 }
1589                 
1590                 VECCOPY(mat[3], vec);
1591                 
1592         }
1593 }
1594
1595 static void ob_parbone(Object *ob, Object *par, float mat[][4])
1596 {       
1597         bPoseChannel *pchan;
1598         bArmature *arm;
1599         float vec[3];
1600         
1601         arm=get_armature(par);
1602         if (!arm) {
1603                 Mat4One(mat);
1604                 return;
1605         }
1606         
1607         /* Make sure the bone is still valid */
1608         pchan= get_pose_channel(par->pose, ob->parsubstr);
1609         if (!pchan){
1610                 printf ("Object %s with Bone parent: bone %s doesn't exist\n", ob->id.name+2, ob->parsubstr);
1611                 Mat4One(mat);
1612                 return;
1613         }
1614
1615         /* get bone transform */
1616         Mat4CpyMat4(mat, pchan->pose_mat);
1617
1618         /* but for backwards compatibility, the child has to move to the tail */
1619         VECCOPY(vec, mat[1]);
1620         VecMulf(vec, pchan->bone->length);
1621         VecAddf(mat[3], mat[3], vec);
1622 }
1623
1624 static void give_parvert(Object *par, int nr, float *vec)
1625 {
1626         int a, count;
1627         
1628         vec[0]=vec[1]=vec[2]= 0.0f;
1629         
1630         if(par->type==OB_MESH) {
1631                 if(G.obedit && (par->data==G.obedit->data)) {
1632                         EditMesh *em = G.editMesh;
1633                         EditVert *eve;
1634                         
1635                         for(eve= em->verts.first; eve; eve= eve->next) {
1636                                 if(eve->keyindex==nr) {
1637                                         memcpy(vec, eve->co, sizeof(float)*3);
1638                                         break;
1639                                 }
1640                         }
1641                 }
1642                 else {
1643                         DerivedMesh *dm = par->derivedFinal;
1644                         
1645                         if(dm) {
1646                                 int i, count = 0, numVerts = dm->getNumVerts(dm);
1647                                 int *index = (int *)dm->getVertDataArray(dm, CD_ORIGINDEX);
1648                                 float co[3];
1649
1650                                 /* get the average of all verts with (original index == nr) */
1651                                 for(i = 0; i < numVerts; ++i, ++index) {
1652                                         if(*index == nr) {
1653                                                 dm->getVertCo(dm, i, co);
1654                                                 VecAddf(vec, vec, co);
1655                                                 count++;
1656                                         }
1657                                 }
1658
1659                                 if (count==0) {
1660                                         /* keep as 0,0,0 */
1661                                 } else if(count > 0) {
1662                                         VecMulf(vec, 1.0f / count);
1663                                 } else {
1664                                         /* use first index if its out of range */
1665                                         dm->getVertCo(dm, 0, vec);
1666                                 }
1667                         }
1668                 }
1669         }
1670         else if ELEM(par->type, OB_CURVE, OB_SURF) {
1671                 Nurb *nu;
1672                 Curve *cu;
1673                 BPoint *bp;
1674                 BezTriple *bezt;
1675                 int found= 0;
1676                 
1677                 cu= par->data;
1678                 nu= cu->nurb.first;
1679                 if(par==G.obedit) nu= editNurb.first;
1680                 
1681                 count= 0;
1682                 while(nu && !found) {
1683                         if((nu->type & 7)==CU_BEZIER) {
1684                                 bezt= nu->bezt;
1685                                 a= nu->pntsu;
1686                                 while(a--) {
1687                                         if(count==nr) {
1688                                                 found= 1;
1689                                                 VECCOPY(vec, bezt->vec[1]);
1690                                                 break;
1691                                         }
1692                                         count++;
1693                                         bezt++;
1694                                 }
1695                         }
1696                         else {
1697                                 bp= nu->bp;
1698                                 a= nu->pntsu*nu->pntsv;
1699                                 while(a--) {
1700                                         if(count==nr) {
1701                                                 found= 1;
1702                                                 memcpy(vec, bp->vec, sizeof(float)*3);
1703                                                 break;
1704                                         }
1705                                         count++;
1706                                         bp++;
1707                                 }
1708                         }
1709                         nu= nu->next;
1710                 }
1711
1712         }
1713         else if(par->type==OB_LATTICE) {
1714                 Lattice *latt= par->data;
1715                 BPoint *bp;
1716                 DispList *dl = find_displist(&par->disp, DL_VERTS);
1717                 float *co = dl?dl->verts:NULL;
1718                 
1719                 if(par==G.obedit) latt= editLatt;
1720                 
1721                 a= latt->pntsu*latt->pntsv*latt->pntsw;
1722                 count= 0;
1723                 bp= latt->def;
1724                 while(a--) {
1725                         if(count==nr) {
1726                                 if(co)
1727                                         memcpy(vec, co, 3*sizeof(float));
1728                                 else
1729                                         memcpy(vec, bp->vec, 3*sizeof(float));
1730                                 break;
1731                         }
1732                         count++;
1733                         if(co) co+= 3;
1734                         else bp++;
1735                 }
1736         }
1737 }
1738
1739 static void ob_parvert3(Object *ob, Object *par, float mat[][4])
1740 {
1741         float cmat[3][3], v1[3], v2[3], v3[3], q[4];
1742
1743         /* in local ob space */
1744         Mat4One(mat);
1745         
1746         if ELEM4(par->type, OB_MESH, OB_SURF, OB_CURVE, OB_LATTICE) {
1747                 
1748                 give_parvert(par, ob->par1, v1);
1749                 give_parvert(par, ob->par2, v2);
1750                 give_parvert(par, ob->par3, v3);
1751                                 
1752                 triatoquat(v1, v2, v3, q);
1753                 QuatToMat3(q, cmat);
1754                 Mat4CpyMat3(mat, cmat);
1755                 
1756                 if(ob->type==OB_CURVE) {
1757                         VECCOPY(mat[3], v1);
1758                 }
1759                 else {
1760                         VecAddf(mat[3], v1, v2);
1761                         VecAddf(mat[3], mat[3], v3);
1762                         VecMulf(mat[3], 0.3333333f);
1763                 }
1764         }
1765 }
1766
1767 static int no_parent_ipo=0;
1768 void set_no_parent_ipo(int val)
1769 {
1770         no_parent_ipo= val;
1771 }
1772
1773 static int during_script_flag=0;
1774 void disable_where_script(short on)
1775 {
1776         during_script_flag= on;
1777 }
1778
1779 int during_script(void) {
1780         return during_script_flag;
1781 }
1782
1783 static int during_scriptlink_flag=0;
1784 void disable_where_scriptlink(short on)
1785 {
1786         during_scriptlink_flag= on;
1787 }
1788
1789 int during_scriptlink(void) {
1790         return during_scriptlink_flag;
1791 }
1792
1793 void where_is_object_time(Object *ob, float ctime)
1794 {
1795         float *fp1, *fp2, slowmat[4][4] = MAT4_UNITY;
1796         float stime, fac1, fac2, vec[3];
1797         int a;
1798         int pop; 
1799         
1800         /* new version: correct parent+vertexparent and track+parent */
1801         /* this one only calculates direct attached parent and track */
1802         /* is faster, but should keep track of timeoffs */
1803         
1804         if(ob==NULL) return;
1805         
1806         /* this is needed to be able to grab objects with ipos, otherwise it always freezes them */
1807         stime= bsystem_time(ob, ctime, 0.0);
1808         if(stime != ob->ctime) {
1809                 
1810                 ob->ctime= stime;
1811                 
1812                 if(ob->ipo) {
1813                         calc_ipo(ob->ipo, stime);
1814                         execute_ipo((ID *)ob, ob->ipo);
1815                 }
1816                 else 
1817                         do_all_object_actions(ob);
1818                 
1819                 /* do constraint ipos ..., note it needs stime (0 = all ipos) */
1820                 do_constraint_channels(&ob->constraints, &ob->constraintChannels, stime, 0);
1821         }
1822         else {
1823                 /* but, the drivers have to be done */
1824                 if(ob->ipo) do_ob_ipodrivers(ob, ob->ipo, stime);
1825                 /* do constraint ipos ..., note it needs stime (1 = only drivers ipos) */
1826                 do_constraint_channels(&ob->constraints, &ob->constraintChannels, stime, 1);
1827         }
1828         
1829         if(ob->parent) {
1830                 Object *par= ob->parent;
1831                 
1832                 if(ob->ipoflag & OB_OFFS_PARENT) ctime-= give_timeoffset(ob);
1833                 
1834                 /* hurms, code below conflicts with depgraph... (ton) */
1835                 /* and even worse, it gives bad effects for NLA stride too (try ctime != par->ctime, with MBlur) */
1836                 pop= 0;
1837                 if(no_parent_ipo==0 && stime != par->ctime) {
1838                 
1839                         // only for ipo systems? 
1840                         pushdata(par, sizeof(Object));
1841                         pop= 1;
1842                         
1843                         if(par->proxy_from);    // was a copied matrix, no where_is! bad...
1844                         else where_is_object_time(par, ctime);
1845                 }
1846                 
1847                 solve_parenting(ob, par, ob->obmat, slowmat, 0);
1848
1849                 if(pop) {
1850                         poplast(par);
1851                 }
1852                 
1853                 if(ob->partype & PARSLOW) {
1854                         // include framerate
1855
1856                         fac1= (1.0f/(1.0f+ fabs(give_timeoffset(ob))));
1857                         if(fac1>=1.0) return;
1858                         fac2= 1.0f-fac1;
1859                         
1860                         fp1= ob->obmat[0];
1861                         fp2= slowmat[0];
1862                         for(a=0; a<16; a++, fp1++, fp2++) {
1863                                 fp1[0]= fac1*fp1[0] + fac2*fp2[0];
1864                         }
1865                 }
1866         
1867         }
1868         else {
1869                 object_to_mat4(ob, ob->obmat);
1870         }
1871
1872         /* Handle tracking */
1873         if(ob->track) {
1874                 if( ctime != ob->track->ctime) where_is_object_time(ob->track, ctime);
1875                 solve_tracking (ob, ob->track->obmat);
1876                 
1877         }
1878
1879         /* solve constraints */
1880         if (ob->constraints.first) {
1881                 bConstraintOb *cob;
1882                 
1883                 cob= constraints_make_evalob(ob, NULL, CONSTRAINT_OBTYPE_OBJECT);
1884                 
1885                 /* constraints need ctime, not stime. Some call where_is_object_time and bsystem_time */
1886                 solve_constraints (&ob->constraints, cob, ctime);
1887                 
1888                 constraints_clear_evalob(cob);
1889         }
1890         
1891         if(ob->scriptlink.totscript && !during_script()) {
1892                 if (G.f & G_DOSCRIPTLINKS) BPY_do_pyscript((ID *)ob, SCRIPT_REDRAW);
1893         }
1894         
1895         /* set negative scale flag in object */
1896         Crossf(vec, ob->obmat[0], ob->obmat[1]);
1897         if( Inpf(vec, ob->obmat[2]) < 0.0 ) ob->transflag |= OB_NEG_SCALE;
1898         else ob->transflag &= ~OB_NEG_SCALE;
1899 }
1900
1901 static void solve_parenting (Object *ob, Object *par, float obmat[][4], float slowmat[][4], int simul)
1902 {
1903         float totmat[4][4];
1904         float tmat[4][4];
1905         float locmat[4][4];
1906         float vec[3];
1907         int ok;
1908
1909         object_to_mat4(ob, locmat);
1910         
1911         if(ob->partype & PARSLOW) Mat4CpyMat4(slowmat, obmat);
1912         
1913
1914         switch(ob->partype & PARTYPE) {
1915         case PAROBJECT:
1916                 ok= 0;
1917                 if(par->type==OB_CURVE) {
1918                         if( ((Curve *)par->data)->flag & CU_PATH ) {
1919                                 ob_parcurve(ob, par, tmat);
1920                                 ok= 1;
1921                         }
1922                 }
1923                 
1924                 if(ok) Mat4MulSerie(totmat, par->obmat, tmat, 
1925                         NULL, NULL, NULL, NULL, NULL, NULL);
1926                 else Mat4CpyMat4(totmat, par->obmat);
1927                 
1928                 break;
1929         case PARBONE:
1930                 ob_parbone(ob, par, tmat);
1931                 Mat4MulSerie(totmat, par->obmat, tmat,         
1932                         NULL, NULL, NULL, NULL, NULL, NULL);
1933                 break;
1934                 
1935         case PARVERT1:
1936                 Mat4One(totmat);
1937                 if (simul){
1938                         VECCOPY(totmat[3], par->obmat[3]);
1939                 }
1940                 else{
1941                         give_parvert(par, ob->par1, vec);
1942                         VecMat4MulVecfl(totmat[3], par->obmat, vec);
1943                 }
1944                 break;
1945         case PARVERT3:
1946                 ob_parvert3(ob, par, tmat);
1947                 
1948                 Mat4MulSerie(totmat, par->obmat, tmat,         
1949                         NULL, NULL, NULL, NULL, NULL, NULL);
1950                 break;
1951                 
1952         case PARSKEL:
1953                 Mat4CpyMat4(totmat, par->obmat);
1954                 break;
1955         }
1956         
1957         // total 
1958         Mat4MulSerie(tmat, totmat, ob->parentinv,         
1959                 NULL, NULL, NULL, NULL, NULL, NULL);
1960         Mat4MulSerie(obmat, tmat, locmat,         
1961                 NULL, NULL, NULL, NULL, NULL, NULL);
1962         
1963         if (simul) {
1964
1965         }
1966         else{
1967                 // external usable originmat 
1968                 Mat3CpyMat4(originmat, tmat);
1969                 
1970                 // origin, voor help line
1971                 if( (ob->partype & 15)==PARSKEL ) {
1972                         VECCOPY(ob->orig, par->obmat[3]);
1973                 }
1974                 else {
1975                         VECCOPY(ob->orig, totmat[3]);
1976                 }
1977         }
1978
1979 }
1980 void solve_tracking (Object *ob, float targetmat[][4])
1981 {
1982         float quat[4];
1983         float vec[3];
1984         float totmat[3][3];
1985         float tmat[4][4];
1986         
1987         VecSubf(vec, ob->obmat[3], targetmat[3]);
1988         vectoquat(vec, ob->trackflag, ob->upflag, quat);
1989         QuatToMat3(quat, totmat);
1990         
1991         if(ob->parent && (ob->transflag & OB_POWERTRACK)) {
1992                 /* 'temporal' : clear parent info */
1993                 object_to_mat4(ob, tmat);
1994                 tmat[0][3]= ob->obmat[0][3];
1995                 tmat[1][3]= ob->obmat[1][3];
1996                 tmat[2][3]= ob->obmat[2][3];
1997                 tmat[3][0]= ob->obmat[3][0];
1998                 tmat[3][1]= ob->obmat[3][1];
1999                 tmat[3][2]= ob->obmat[3][2];
2000                 tmat[3][3]= ob->obmat[3][3];
2001         }
2002         else Mat4CpyMat4(tmat, ob->obmat);
2003         
2004         Mat4MulMat34(ob->obmat, totmat, tmat);
2005
2006 }
2007
2008 void where_is_object(Object *ob)
2009 {
2010         where_is_object_time(ob, (float)G.scene->r.cfra);
2011 }
2012
2013
2014 void where_is_object_simul(Object *ob)
2015 /* was written for the old game engine (until 2.04) */
2016 /* It seems that this function is only called
2017 for a lamp that is the child of another object */
2018 {
2019         Object *par;
2020         Ipo *ipo;
2021         float *fp1, *fp2;
2022         float slowmat[4][4];
2023         float fac1, fac2;
2024         int a;
2025         
2026         /* NO TIMEOFFS */
2027         
2028         /* no ipo! (because of dloc and realtime-ipos) */
2029         ipo= ob->ipo;
2030         ob->ipo= NULL;
2031
2032         if(ob->parent) {
2033                 par= ob->parent;
2034                 
2035                 solve_parenting(ob, par, ob->obmat, slowmat, 1);
2036
2037                 if(ob->partype & PARSLOW) {
2038
2039                         fac1= (float)(1.0/(1.0+ fabs(give_timeoffset(ob))));
2040                         fac2= 1.0f-fac1;
2041                         fp1= ob->obmat[0];
2042                         fp2= slowmat[0];
2043                         for(a=0; a<16; a++, fp1++, fp2++) {
2044                                 fp1[0]= fac1*fp1[0] + fac2*fp2[0];
2045                         }
2046                 }
2047                 
2048         }
2049         else {
2050                 object_to_mat4(ob, ob->obmat);
2051         }
2052         
2053         if(ob->track) 
2054                 solve_tracking(ob, ob->track->obmat);
2055
2056         /* solve constraints */
2057         if (ob->constraints.first) {
2058                 bConstraintOb *cob;
2059                 
2060                 cob= constraints_make_evalob(ob, NULL, CONSTRAINT_OBTYPE_OBJECT);
2061                 solve_constraints (&ob->constraints, cob, G.scene->r.cfra);
2062                 constraints_clear_evalob(cob);
2063         }
2064         
2065         /*  WATCH IT!!! */
2066         ob->ipo= ipo;
2067 }
2068
2069 /* for calculation of the inverse parent transform, only used for editor */
2070 void what_does_parent(Object *ob)
2071 {
2072         clear_workob();
2073         Mat4One(workob.obmat);
2074         Mat4One(workob.parentinv);
2075         Mat4One(workob.constinv);
2076         workob.parent= ob->parent;
2077         workob.track= ob->track;
2078
2079         workob.trackflag= ob->trackflag;
2080         workob.upflag= ob->upflag;
2081         
2082         workob.partype= ob->partype;
2083         workob.par1= ob->par1;
2084         workob.par2= ob->par2;
2085         workob.par3= ob->par3;
2086
2087         workob.constraints.first = ob->constraints.first;
2088         workob.constraints.last = ob->constraints.last;
2089
2090         strcpy(workob.parsubstr, ob->parsubstr); 
2091
2092         where_is_object(&workob);
2093 }
2094
2095 BoundBox *unit_boundbox()
2096 {
2097         BoundBox *bb;
2098         float min[3] = {-1,-1,-1}, max[3] = {-1,-1,-1};
2099
2100         bb= MEM_callocN(sizeof(BoundBox), "bb");
2101         boundbox_set_from_min_max(bb, min, max);
2102         
2103         return bb;
2104 }
2105
2106 void boundbox_set_from_min_max(BoundBox *bb, float min[3], float max[3])
2107 {
2108         bb->vec[0][0]=bb->vec[1][0]=bb->vec[2][0]=bb->vec[3][0]= min[0];
2109         bb->vec[4][0]=bb->vec[5][0]=bb->vec[6][0]=bb->vec[7][0]= max[0];
2110         
2111         bb->vec[0][1]=bb->vec[1][1]=bb->vec[4][1]=bb->vec[5][1]= min[1];
2112         bb->vec[2][1]=bb->vec[3][1]=bb->vec[6][1]=bb->vec[7][1]= max[1];
2113
2114         bb->vec[0][2]=bb->vec[3][2]=bb->vec[4][2]=bb->vec[7][2]= min[2];
2115         bb->vec[1][2]=bb->vec[2][2]=bb->vec[5][2]=bb->vec[6][2]= max[2];
2116 }
2117
2118 BoundBox *object_get_boundbox(Object *ob)
2119 {
2120         BoundBox *bb= NULL;
2121         
2122         if(ob->type==OB_MESH) {
2123                 bb = mesh_get_bb(ob);
2124         }
2125         else if ELEM3(ob->type, OB_CURVE, OB_SURF, OB_FONT) {
2126                 bb= ( (Curve *)ob->data )->bb;
2127         }
2128         else if(ob->type==OB_MBALL) {
2129                 bb= ob->bb;
2130         }
2131         return bb;
2132 }
2133
2134 /* used to temporally disable/enable boundbox */
2135 void object_boundbox_flag(Object *ob, int flag, int set)
2136 {
2137         BoundBox *bb= object_get_boundbox(ob);
2138         if(bb) {
2139                 if(set) bb->flag |= flag;
2140                 else bb->flag &= ~flag;
2141         }
2142 }
2143
2144 void minmax_object(Object *ob, float *min, float *max)
2145 {
2146         BoundBox bb;
2147         Mesh *me;
2148         Curve *cu;
2149         float vec[3];
2150         int a;
2151         
2152         switch(ob->type) {
2153                 
2154         case OB_CURVE:
2155         case OB_FONT:
2156         case OB_SURF:
2157                 cu= ob->data;
2158                 
2159                 if(cu->bb==NULL) tex_space_curve(cu);
2160                 bb= *(cu->bb);
2161                 
2162                 for(a=0; a<8; a++) {
2163                         Mat4MulVecfl(ob->obmat, bb.vec[a]);
2164                         DO_MINMAX(bb.vec[a], min, max);
2165                 }
2166                 break;
2167         case OB_ARMATURE:
2168                 if(ob->pose) {
2169                         bPoseChannel *pchan;
2170                         for(pchan= ob->pose->chanbase.first; pchan; pchan= pchan->next) {
2171                                 VECCOPY(vec, pchan->pose_head);
2172                                 Mat4MulVecfl(ob->obmat, vec);
2173                                 DO_MINMAX(vec, min, max);
2174                                 VECCOPY(vec, pchan->pose_tail);
2175                                 Mat4MulVecfl(ob->obmat, vec);
2176                                 DO_MINMAX(vec, min, max);
2177                         }
2178                         break;
2179                 }
2180                 /* no break, get_mesh will give NULL and it passes on to default */
2181         case OB_MESH:
2182                 me= get_mesh(ob);
2183                 
2184                 if(me) {
2185                         bb = *mesh_get_bb(ob);
2186                         
2187                         for(a=0; a<8; a++) {
2188                                 Mat4MulVecfl(ob->obmat, bb.vec[a]);
2189                                 DO_MINMAX(bb.vec[a], min, max);
2190                         }
2191                 }
2192                 if(min[0] < max[0] ) break;
2193                 
2194                 /* else here no break!!!, mesh can be zero sized */
2195                 
2196         default:
2197                 DO_MINMAX(ob->obmat[3], min, max);
2198
2199                 VECCOPY(vec, ob->obmat[3]);
2200                 VecAddf(vec, vec, ob->size);
2201                 DO_MINMAX(vec, min, max);
2202
2203                 VECCOPY(vec, ob->obmat[3]);
2204                 VecSubf(vec, vec, ob->size);
2205                 DO_MINMAX(vec, min, max);
2206                 break;
2207         }
2208 }
2209
2210 /* TODO - use dupli objects bounding boxes */
2211 void minmax_object_duplis(Object *ob, float *min, float *max)
2212 {
2213         if ((ob->transflag & OB_DUPLI)==0) {
2214                 return;
2215         } else {
2216                 ListBase *lb;
2217                 DupliObject *dob;
2218                 
2219                 lb= object_duplilist(G.scene, ob);
2220                 for(dob= lb->first; dob; dob= dob->next) {
2221                         if(dob->no_draw);
2222                         else {
2223                                 /* should really use bound box of dup object */
2224                                 DO_MINMAX(dob->mat[3], min, max);
2225                         }
2226                 }
2227                 free_object_duplilist(lb);      /* does restore */
2228         }
2229 }
2230
2231
2232 /* proxy rule: lib_object->proxy_from == the one we borrow from, only set temporal and cleared here */
2233 /*           local_object->proxy      == pointer to library object, saved in files and read */
2234
2235 /* function below is polluted with proxy exceptions, cleanup will follow! */
2236
2237 /* the main object update call, for object matrix, constraints, keys and displist (modifiers) */
2238 /* requires flags to be set! */
2239 void object_handle_update(Object *ob)
2240 {
2241         if(ob->recalc & OB_RECALC) {
2242                 
2243                 if(ob->recalc & OB_RECALC_OB) {
2244
2245                         // printf("recalcob %s\n", ob->id.name+2);
2246                         
2247                         /* handle proxy copy for target */
2248                         if(ob->id.lib && ob->proxy_from) {
2249                                 // printf("ob proxy copy, lib ob %s proxy %s\n", ob->id.name, ob->proxy_from->id.name);
2250                                 if(ob->proxy_from->proxy_group) {/* transform proxy into group space */
2251                                         Object *obg= ob->proxy_from->proxy_group;
2252                                         Mat4Invert(obg->imat, obg->obmat);
2253                                         Mat4MulMat4(ob->obmat, ob->proxy_from->obmat, obg->imat);
2254                                 }
2255                                 else
2256                                         Mat4CpyMat4(ob->obmat, ob->proxy_from->obmat);
2257                         }
2258                         else
2259                                 where_is_object(ob);
2260                         if (G.f & G_DOSCRIPTLINKS) BPY_do_pyscript((ID *)ob, SCRIPT_OBJECTUPDATE);
2261                 }
2262                 
2263                 if(ob->recalc & OB_RECALC_DATA) {
2264                         
2265                         // printf("recalcdata %s\n", ob->id.name+2);
2266                         
2267                         /* includes all keys and modifiers */
2268                         if(ob->type==OB_MESH) {
2269                                 makeDerivedMesh(ob, get_viewedit_datamask());
2270                         }
2271                         else if(ob->type==OB_MBALL) {
2272                                 makeDispListMBall(ob);
2273                         } 
2274                         else if(ELEM3(ob->type, OB_CURVE, OB_SURF, OB_FONT)) {
2275                                 makeDispListCurveTypes(ob, 0);
2276                         }
2277                         else if(ob->type==OB_LATTICE) {
2278                                 lattice_calc_modifiers(ob);
2279                         }
2280                         else if(ob->type==OB_CAMERA) {
2281                                 Camera *cam = (Camera *)ob->data;
2282                                 calc_ipo(cam->ipo, frame_to_float(G.scene->r.cfra));
2283                                 execute_ipo(&cam->id, cam->ipo);
2284                         }
2285                         else if(ob->type==OB_LAMP) {
2286                                 Lamp *la = (Lamp *)ob->data;
2287                                 calc_ipo(la->ipo, frame_to_float(G.scene->r.cfra));
2288                                 execute_ipo(&la->id, la->ipo);
2289                         }
2290                         else if(ob->type==OB_ARMATURE) {
2291                                 /* this happens for reading old files and to match library armatures with poses */
2292                                 if(ob->pose==NULL || (ob->pose->flag & POSE_RECALC))
2293                                         armature_rebuild_pose(ob, ob->data);
2294                                 
2295                                 if(ob->id.lib && ob->proxy_from) {
2296                                         copy_pose_result(ob->pose, ob->proxy_from->pose);
2297                                         // printf("pose proxy copy, lib ob %s proxy %s\n", ob->id.name, ob->proxy_from->id.name);
2298                                 }
2299                                 else {
2300                                         do_all_pose_actions(ob);
2301                                         where_is_pose(ob);
2302                                 }
2303                         }
2304
2305                         if(ob->particlesystem.first) {
2306                                 ParticleSystem *tpsys, *psys;
2307                                 DerivedMesh *dm;
2308                                 
2309                                 psys= ob->particlesystem.first;
2310                                 while(psys) {
2311                                         if(psys_check_enabled(ob, psys)) {
2312                                                 particle_system_update(ob, psys);
2313                                                 psys= psys->next;
2314                                         }
2315                                         else if(psys->flag & PSYS_DELETE) {
2316                                                 tpsys=psys->next;
2317                                                 BLI_remlink(&ob->particlesystem, psys);
2318                                                 psys_free(ob,psys);
2319                                                 psys= tpsys;
2320                                         }
2321                                         else
2322                                                 psys= psys->next;
2323                                 }
2324
2325                                 if(G.rendering && ob->transflag & OB_DUPLIPARTS) {
2326                                         /* this is to make sure we get render level duplis in groups:
2327                                          * the derivedmesh must be created before init_render_mesh,
2328                                          * since object_duplilist does dupliparticles before that */
2329                                         dm = mesh_create_derived_render(ob, CD_MASK_BAREMESH|CD_MASK_MTFACE|CD_MASK_MCOL);
2330                                         dm->release(dm);
2331
2332                                         for(psys=ob->particlesystem.first; psys; psys=psys->next)
2333                                                 psys_get_modifier(ob, psys)->flag &= ~eParticleSystemFlag_psys_updated;
2334                                 }
2335                         }
2336                         if (G.f & G_DOSCRIPTLINKS) BPY_do_pyscript((ID *)ob, SCRIPT_OBDATAUPDATE);
2337                 }
2338
2339                 /* the no-group proxy case, we call update */
2340                 if(ob->proxy && ob->proxy_group==NULL) {
2341                         /* set pointer in library proxy target, for copying, but restore it */
2342                         ob->proxy->proxy_from= ob;
2343                         // printf("call update, lib ob %s proxy %s\n", ob->proxy->id.name, ob->id.name);
2344                         object_handle_update(ob->proxy);
2345                 }
2346         
2347                 ob->recalc &= ~OB_RECALC;
2348         }
2349
2350         /* the case when this is a group proxy, object_update is called in group.c */
2351         if(ob->proxy) {
2352                 ob->proxy->proxy_from= ob;
2353                 // printf("set proxy pointer for later group stuff %s\n", ob->id.name);
2354         }
2355 }
2356
2357 float give_timeoffset(Object *ob) {
2358         if ((ob->ipoflag & OB_OFFS_PARENTADD) && ob->parent) {
2359                 return ob->sf + give_timeoffset(ob->parent);
2360         } else {
2361                 return ob->sf;
2362         }
2363 }
2364
2365 int give_obdata_texspace(Object *ob, int **texflag, float **loc, float **size, float **rot) {
2366         
2367         if (ob->data==NULL)
2368                 return 0;
2369         
2370         switch (GS(((ID *)ob->data)->name)) {
2371         case ID_ME:
2372         {
2373                 Mesh *me= ob->data;
2374                 if (texflag)    *texflag = &me->texflag;
2375                 if (loc)                *loc = me->loc;
2376                 if (size)               *size = me->size;
2377                 if (rot)                *rot = me->rot;
2378                 break;
2379         }
2380         case ID_CU:
2381         {
2382                 Curve *cu= ob->data;
2383                 if (texflag)    *texflag = &cu->texflag;
2384                 if (loc)                *loc = cu->loc;
2385                 if (size)               *size = cu->size;
2386                 if (rot)                *rot = cu->rot;
2387                 break;
2388         }
2389         case ID_MB:
2390         {
2391                 MetaBall *mb= ob->data;
2392                 if (texflag)    *texflag = &mb->texflag;
2393                 if (loc)                *loc = mb->loc;
2394                 if (size)               *size = mb->size;
2395                 if (rot)                *rot = mb->rot;
2396                 break;
2397         }
2398         default:
2399                 return 0;
2400         }
2401         return 1;
2402 }
2403
2404 /*
2405  * Test a bounding box for ray intersection
2406  * assumes the ray is already local to the boundbox space
2407  */
2408 int ray_hit_boundbox(struct BoundBox *bb, float ray_start[3], float ray_normal[3])
2409 {
2410         static int triangle_indexes[12][3] = {{0, 1, 2}, {0, 2, 3},
2411                                                                                   {3, 2, 6}, {3, 6, 7},
2412                                                                                   {1, 2, 6}, {1, 6, 5}, 
2413                                                                                   {5, 6, 7}, {4, 5, 7},
2414                                                                                   {0, 3, 7}, {0, 4, 7},
2415                                                                                   {0, 1, 5}, {0, 4, 5}};
2416         int result = 0;
2417         int i;
2418         
2419         for (i = 0; i < 12 && result == 0; i++)
2420         {
2421                 float lambda;
2422                 int v1, v2, v3;
2423                 v1 = triangle_indexes[i][0];
2424                 v2 = triangle_indexes[i][1];
2425                 v3 = triangle_indexes[i][2];
2426                 result = RayIntersectsTriangle(ray_start, ray_normal, bb->vec[v1], bb->vec[v2], bb->vec[v3], &lambda, NULL);
2427         }
2428         
2429         return result;
2430 }