Merging fluidcontrol to trunk from rev16649 fluidcontrol branch. Code provided by...
[blender-staging.git] / source / blender / blenkernel / intern / object.c
1 /* object.c
2  *
3  * 
4  * $Id$
5  *
6  * ***** BEGIN GPL LICENSE BLOCK *****
7  *
8  * This program is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU General Public License
10  * as published by the Free Software Foundation; either version 2
11  * of the License, or (at your option) any later version.
12  *
13  * This program is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16  * GNU General Public License for more details.
17  *
18  * You should have received a copy of the GNU General Public License
19  * along with this program; if not, write to the Free Software Foundation,
20  * Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
21  *
22  * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
23  * All rights reserved.
24  *
25  * The Original Code is: all of this file.
26  *
27  * Contributor(s): none yet.
28  *
29  * ***** END GPL LICENSE BLOCK *****
30  */
31
32 #include <string.h>
33 #include <math.h>
34 #include <stdio.h>                      
35
36 #ifdef HAVE_CONFIG_H
37 #include <config.h>
38 #endif
39
40 #include "MEM_guardedalloc.h"
41
42 #include "DNA_action_types.h"
43 #include "DNA_armature_types.h"
44 #include "DNA_camera_types.h"
45 #include "DNA_constraint_types.h"
46 #include "DNA_curve_types.h"
47 #include "DNA_group_types.h"
48 #include "DNA_ipo_types.h"
49 #include "DNA_lamp_types.h"
50 #include "DNA_lattice_types.h"
51 #include "DNA_material_types.h"
52 #include "DNA_mesh_types.h"
53 #include "DNA_meta_types.h"
54 #include "DNA_curve_types.h"
55 #include "DNA_meshdata_types.h"
56 #include "DNA_modifier_types.h"
57 #include "DNA_nla_types.h"
58 #include "DNA_object_types.h"
59 #include "DNA_object_force.h"
60 #include "DNA_object_fluidsim.h"
61 #include "DNA_oops_types.h"
62 #include "DNA_particle_types.h"
63 #include "DNA_scene_types.h"
64 #include "DNA_screen_types.h"
65 #include "DNA_space_types.h"
66 #include "DNA_texture_types.h"
67 #include "DNA_userdef_types.h"
68 #include "DNA_view3d_types.h"
69 #include "DNA_world_types.h"
70
71 #include "BKE_armature.h"
72 #include "BKE_action.h"
73 #include "BKE_colortools.h"
74 #include "BKE_deform.h"
75 #include "BKE_DerivedMesh.h"
76 #include "BKE_nla.h"
77
78 #include "BLI_blenlib.h"
79 #include "BLI_arithb.h"
80 #include "BLI_editVert.h"
81
82 #include "BKE_utildefines.h"
83 #include "BKE_bad_level_calls.h"
84
85 #include "BKE_main.h"
86 #include "BKE_global.h"
87
88 #include "BKE_anim.h"
89 #include "BKE_blender.h"
90 #include "BKE_constraint.h"
91 #include "BKE_curve.h"
92 #include "BKE_displist.h"
93 #include "BKE_group.h"
94 #include "BKE_icons.h"
95 #include "BKE_ipo.h"
96 #include "BKE_key.h"
97 #include "BKE_lattice.h"
98 #include "BKE_library.h"
99 #include "BKE_mesh.h"
100 #include "BKE_mball.h"
101 #include "BKE_modifier.h"
102 #include "BKE_object.h"
103 #include "BKE_particle.h"
104 #include "BKE_pointcache.h"
105 #include "BKE_property.h"
106 #include "BKE_sca.h"
107 #include "BKE_scene.h"
108 #include "BKE_screen.h"
109 #include "BKE_softbody.h"
110
111 #include "LBM_fluidsim.h"
112
113 #include "BPY_extern.h"
114
115 #include "GPU_material.h"
116
117 #include "blendef.h"
118
119 /* Local function protos */
120 static void solve_parenting (Object *ob, Object *par, float obmat[][4], float slowmat[][4], int simul);
121
122 float originmat[3][3];  /* after where_is_object(), can be used in other functions (bad!) */
123 Object workob;
124
125 void clear_workob(void)
126 {
127         memset(&workob, 0, sizeof(Object));
128         
129         workob.size[0]= workob.size[1]= workob.size[2]= 1.0;
130         
131 }
132
133 void copy_baseflags()
134 {
135         Base *base= G.scene->base.first;
136         
137         while(base) {
138                 base->object->flag= base->flag;
139                 base= base->next;
140         }
141 }
142
143 void copy_objectflags()
144 {
145         Base *base= G.scene->base.first;
146         
147         while(base) {
148                 base->flag= base->object->flag;
149                 base= base->next;
150         }
151 }
152
153 void update_base_layer(Object *ob)
154 {
155         Base *base= G.scene->base.first;
156
157         while (base) {
158                 if (base->object == ob) base->lay= ob->lay;
159                 base= base->next;
160         }
161 }
162
163 void object_free_particlesystems(Object *ob)
164 {
165         while(ob->particlesystem.first){
166                 ParticleSystem *psys = ob->particlesystem.first;
167
168                 BLI_remlink(&ob->particlesystem,psys);
169
170                 psys_free(ob,psys);
171         }
172 }
173
174 void object_free_softbody(Object *ob)
175 {
176         if(ob->soft) {
177                 sbFree(ob->soft);
178                 ob->soft= NULL;
179         }
180 }
181
182 void object_free_modifiers(Object *ob)
183 {
184         while (ob->modifiers.first) {
185                 ModifierData *md = ob->modifiers.first;
186
187                 BLI_remlink(&ob->modifiers, md);
188
189                 modifier_free(md);
190         }
191
192         /* particle modifiers were freed, so free the particlesystems as well */
193         object_free_particlesystems(ob);
194
195         /* same for softbody */
196         object_free_softbody(ob);
197 }
198
199 /* here we will collect all local displist stuff */
200 /* also (ab)used in depsgraph */
201 void object_free_display(Object *ob)
202 {
203         if(ob->derivedDeform) {
204                 ob->derivedDeform->needsFree = 1;
205                 ob->derivedDeform->release(ob->derivedDeform);
206                 ob->derivedDeform= NULL;
207         }
208         if(ob->derivedFinal) {
209                 ob->derivedFinal->needsFree = 1;
210                 ob->derivedFinal->release(ob->derivedFinal);
211                 ob->derivedFinal= NULL;
212         }
213         
214         freedisplist(&ob->disp);
215 }
216
217 /* do not free object itself */
218 void free_object(Object *ob)
219 {
220         int a;
221         
222         object_free_display(ob);
223         
224         /* disconnect specific data */
225         if(ob->data) {
226                 ID *id= ob->data;
227                 id->us--;
228                 if(id->us==0) {
229                         if(ob->type==OB_MESH) unlink_mesh(ob->data);
230                         else if(ob->type==OB_CURVE) unlink_curve(ob->data);
231                         else if(ob->type==OB_MBALL) unlink_mball(ob->data);
232                 }
233                 ob->data= 0;
234         }
235         
236         for(a=0; a<ob->totcol; a++) {
237                 if(ob->mat[a]) ob->mat[a]->id.us--;
238         }
239         if(ob->mat) MEM_freeN(ob->mat);
240         ob->mat= 0;
241         if(ob->bb) MEM_freeN(ob->bb); 
242         ob->bb= 0;
243         if(ob->path) free_path(ob->path); 
244         ob->path= 0;
245         if(ob->ipo) ob->ipo->id.us--;
246         if(ob->action) ob->action->id.us--;
247         if(ob->poselib) ob->poselib->id.us--;
248         if(ob->dup_group) ob->dup_group->id.us--;
249         if(ob->defbase.first)
250                 BLI_freelistN(&ob->defbase);
251         if(ob->pose)
252                 free_pose(ob->pose);
253         free_properties(&ob->prop);
254         object_free_modifiers(ob);
255         
256         free_sensors(&ob->sensors);
257         free_controllers(&ob->controllers);
258         free_actuators(&ob->actuators);
259         
260         free_constraints(&ob->constraints);
261         free_constraint_channels(&ob->constraintChannels);
262         free_nlastrips(&ob->nlastrips);
263         
264         BPY_free_scriptlink(&ob->scriptlink);
265         
266         if(ob->pd){
267                 if(ob->pd->tex)
268                         ob->pd->tex->id.us--;
269                 MEM_freeN(ob->pd);
270         }
271         if(ob->soft) sbFree(ob->soft);
272         if(ob->gpulamp.first) GPU_lamp_free(ob);
273 }
274
275 static void unlink_object__unlinkModifierLinks(void *userData, Object *ob, Object **obpoin)
276 {
277         Object *unlinkOb = userData;
278
279         if (*obpoin==unlinkOb) {
280                 *obpoin = NULL;
281                 ob->recalc |= OB_RECALC;
282         }
283 }
284 void unlink_object(Object *ob)
285 {
286         Object *obt;
287         Material *mat;
288         World *wrld;
289         bScreen *sc;
290         Scene *sce;
291         Curve *cu;
292         Tex *tex;
293         Ipo *ipo;
294         Group *group;
295         Camera *camera;
296         bConstraint *con;
297         bActionStrip *strip;
298         ModifierData *md;
299         int a;
300         
301         unlink_controllers(&ob->controllers);
302         unlink_actuators(&ob->actuators);
303         
304         /* check all objects: parents en bevels and fields, also from libraries */
305         obt= G.main->object.first;
306         while(obt) {
307                 if(obt->proxy==ob)
308                         obt->proxy= NULL;
309                 if(obt->proxy_from==ob) {
310                         obt->proxy_from= NULL;
311                         obt->recalc |= OB_RECALC_OB;
312                 }
313                 if(obt->proxy_group==ob)
314                         obt->proxy_group= NULL;
315                 
316                 if(obt->parent==ob) {
317                         obt->parent= NULL;
318                         obt->recalc |= OB_RECALC;
319                 }
320                 
321                 if(obt->track==ob) {
322                         obt->track= NULL;
323                         obt->recalc |= OB_RECALC_OB;
324                 }
325                 
326                 modifiers_foreachObjectLink(obt, unlink_object__unlinkModifierLinks, ob);
327                 
328                 if ELEM(obt->type, OB_CURVE, OB_FONT) {
329                         cu= obt->data;
330
331                         if(cu->bevobj==ob) {
332                                 cu->bevobj= NULL;
333                                 obt->recalc |= OB_RECALC;
334                         }
335                         if(cu->taperobj==ob) {
336                                 cu->taperobj= NULL;
337                                 obt->recalc |= OB_RECALC;
338                         }
339                         if(cu->textoncurve==ob) {
340                                 cu->textoncurve= NULL;
341                                 obt->recalc |= OB_RECALC;
342                         }
343                 }
344                 else if(obt->type==OB_ARMATURE && obt->pose) {
345                         bPoseChannel *pchan;
346                         for(pchan= obt->pose->chanbase.first; pchan; pchan= pchan->next) {
347                                 for (con = pchan->constraints.first; con; con=con->next) {
348                                         bConstraintTypeInfo *cti= constraint_get_typeinfo(con);
349                                         ListBase targets = {NULL, NULL};
350                                         bConstraintTarget *ct;
351                                         
352                                         if (cti && cti->get_constraint_targets) {
353                                                 cti->get_constraint_targets(con, &targets);
354                                                 
355                                                 for (ct= targets.first; ct; ct= ct->next) {
356                                                         if (ct->tar == ob) {
357                                                                 ct->tar = NULL;
358                                                                 strcpy(ct->subtarget, "");
359                                                                 obt->recalc |= OB_RECALC_DATA;
360                                                         }
361                                                 }
362                                                 
363                                                 if (cti->flush_constraint_targets)
364                                                         cti->flush_constraint_targets(con, &targets, 0);
365                                         }
366                                 }
367                                 if(pchan->custom==ob)
368                                         pchan->custom= NULL;
369                         }
370                 }
371                 
372                 sca_remove_ob_poin(obt, ob);
373                 
374                 for (con = obt->constraints.first; con; con=con->next) {
375                         bConstraintTypeInfo *cti= constraint_get_typeinfo(con);
376                         ListBase targets = {NULL, NULL};
377                         bConstraintTarget *ct;
378                         
379                         if (cti && cti->get_constraint_targets) {
380                                 cti->get_constraint_targets(con, &targets);
381                                 
382                                 for (ct= targets.first; ct; ct= ct->next) {
383                                         if (ct->tar == ob) {
384                                                 ct->tar = NULL;
385                                                 strcpy(ct->subtarget, "");
386                                                 obt->recalc |= OB_RECALC_DATA;
387                                         }
388                                 }
389                                 
390                                 if (cti->flush_constraint_targets)
391                                         cti->flush_constraint_targets(con, &targets, 0);
392                         }
393                 }
394                 
395                 /* object is deflector or field */
396                 if(ob->pd) {
397                         if(obt->soft)
398                                 obt->recalc |= OB_RECALC_DATA;
399
400                         /* cloth */
401                         for(md=obt->modifiers.first; md; md=md->next)
402                                 if(md->type == eModifierType_Cloth)
403                                         obt->recalc |= OB_RECALC_DATA;
404                 }
405                 
406                 /* strips */
407                 for(strip= obt->nlastrips.first; strip; strip= strip->next) {
408                         if(strip->object==ob)
409                                 strip->object= NULL;
410                         
411                         if(strip->modifiers.first) {
412                                 bActionModifier *amod;
413                                 for(amod= strip->modifiers.first; amod; amod= amod->next)
414                                         if(amod->ob==ob)
415                                                 amod->ob= NULL;
416                         }
417                 }
418
419                 /* particle systems */
420                 if(obt->particlesystem.first) {
421                         ParticleSystem *tpsys= obt->particlesystem.first;
422                         for(; tpsys; tpsys=tpsys->next) {
423                                 if(tpsys->keyed_ob==ob) {
424                                         ParticleSystem *psys= BLI_findlink(&ob->particlesystem,tpsys->keyed_psys-1);
425
426                                         if(psys && psys->keyed_ob) {
427                                                 tpsys->keyed_ob= psys->keyed_ob;
428                                                 tpsys->keyed_psys= psys->keyed_psys;
429                                         }
430                                         else
431                                                 tpsys->keyed_ob= NULL;
432
433                                         obt->recalc |= OB_RECALC_DATA;
434                                 }
435
436                                 if(tpsys->target_ob==ob) {
437                                         tpsys->target_ob= NULL;
438                                         obt->recalc |= OB_RECALC_DATA;
439                                 }
440
441                                 if(tpsys->part->dup_ob==ob)
442                                         tpsys->part->dup_ob= NULL;
443
444                                 if(tpsys->part->flag&PART_STICKY) {
445                                         ParticleData *pa;
446                                         int p;
447
448                                         for(p=0,pa=tpsys->particles; p<tpsys->totpart; p++,pa++) {
449                                                 if(pa->stick_ob==ob) {
450                                                         pa->stick_ob= 0;
451                                                         pa->flag &= ~PARS_STICKY;
452                                                 }
453                                         }
454                                 }
455                         }
456                         if(ob->pd)
457                                 obt->recalc |= OB_RECALC_DATA;
458                 }
459
460                 obt= obt->id.next;
461         }
462         
463         /* materials */
464         mat= G.main->mat.first;
465         while(mat) {
466         
467                 for(a=0; a<MAX_MTEX; a++) {
468                         if(mat->mtex[a] && ob==mat->mtex[a]->object) {
469                                 /* actually, test for lib here... to do */
470                                 mat->mtex[a]->object= NULL;
471                         }
472                 }
473
474                 mat= mat->id.next;
475         }
476         
477         /* textures */
478         tex= G.main->tex.first;
479         while(tex) {
480                 if(tex->env) {
481                         if(tex->env->object == ob) tex->env->object= NULL;
482                 }
483                 tex= tex->id.next;
484         }
485         
486         /* mballs */
487         if(ob->type==OB_MBALL) {
488                 obt= find_basis_mball(ob);
489                 if(obt) freedisplist(&obt->disp);
490         }
491         
492         /* worlds */
493         wrld= G.main->world.first;
494         while(wrld) {
495                 if(wrld->id.lib==NULL) {
496                         for(a=0; a<MAX_MTEX; a++) {
497                                 if(wrld->mtex[a] && ob==wrld->mtex[a]->object)
498                                         wrld->mtex[a]->object= NULL;
499                         }
500                 }
501                 
502                 wrld= wrld->id.next;
503         }
504                 
505         /* scenes */
506         sce= G.main->scene.first;
507         while(sce) {
508                 if(sce->id.lib==NULL) {
509                         if(sce->camera==ob) sce->camera= NULL;
510                 }
511                 sce= sce->id.next;
512         }
513         /* ipos */
514         ipo= G.main->ipo.first;
515         while(ipo) {
516                 if(ipo->id.lib==NULL) {
517                         IpoCurve *icu;
518                         for(icu= ipo->curve.first; icu; icu= icu->next) {
519                                 if(icu->driver && icu->driver->ob==ob)
520                                         icu->driver->ob= NULL;
521                         }
522                 }
523                 ipo= ipo->id.next;
524         }
525         
526         /* screens */
527         sc= G.main->screen.first;
528         while(sc) {
529                 ScrArea *sa= sc->areabase.first;
530                 while(sa) {
531                         SpaceLink *sl;
532
533                         for (sl= sa->spacedata.first; sl; sl= sl->next) {
534                                 if(sl->spacetype==SPACE_VIEW3D) {
535                                         View3D *v3d= (View3D*) sl;
536
537                                         if(v3d->camera==ob) {
538                                                 v3d->camera= NULL;
539                                                 if(v3d->persp==V3D_CAMOB) v3d->persp= V3D_PERSP;
540                                         }
541                                         if(v3d->localvd && v3d->localvd->camera==ob ) {
542                                                 v3d->localvd->camera= NULL;
543                                                 if(v3d->localvd->persp==V3D_CAMOB) v3d->localvd->persp= V3D_PERSP;
544                                         }
545                                 }
546                                 else if(sl->spacetype==SPACE_IPO) {
547                                         SpaceIpo *sipo= (SpaceIpo *)sl;
548                                         if(sipo->from == (ID *)ob) sipo->from= NULL;
549                                 }
550                                 else if(sl->spacetype==SPACE_OOPS) {
551                                         SpaceOops *so= (SpaceOops *)sl;
552                                         Oops *oops;
553
554                                         oops= so->oops.first;
555                                         while(oops) {
556                                                 if(oops->id==(ID *)ob) oops->id= NULL;
557                                                 oops= oops->next;
558                                         }
559                                         if(so->treestore) {
560                                                 TreeStoreElem *tselem= so->treestore->data;
561                                                 int a;
562                                                 for(a=0; a<so->treestore->usedelem; a++, tselem++) {
563                                                         if(tselem->id==(ID *)ob) tselem->id= NULL;
564                                                 }
565                                         }
566                                         so->lockpoin= NULL;
567                                 }
568                         }
569
570                         sa= sa->next;
571                 }
572                 sc= sc->id.next;
573         }
574
575         /* groups */
576         group= G.main->group.first;
577         while(group) {
578                 rem_from_group(group, ob);
579                 group= group->id.next;
580         }
581         
582         /* cameras */
583         camera= G.main->camera.first;
584         while(camera) {
585                 if (camera->dof_ob==ob) {
586                         camera->dof_ob = NULL;
587                 }
588                 camera= camera->id.next;
589         }
590 }
591
592 int exist_object(Object *obtest)
593 {
594         Object *ob;
595         
596         if(obtest==NULL) return 0;
597         
598         ob= G.main->object.first;
599         while(ob) {
600                 if(ob==obtest) return 1;
601                 ob= ob->id.next;
602         }
603         return 0;
604 }
605
606 void *add_camera(char *name)
607 {
608         Camera *cam;
609         
610         cam=  alloc_libblock(&G.main->camera, ID_CA, name);
611
612         cam->lens= 35.0f;
613         cam->angle= 49.14f;
614         cam->clipsta= 0.1f;
615         cam->clipend= 100.0f;
616         cam->drawsize= 0.5f;
617         cam->ortho_scale= 6.0;
618         cam->flag |= CAM_SHOWTITLESAFE;
619         cam->passepartalpha = 0.2f;
620         
621         return cam;
622 }
623
624 Camera *copy_camera(Camera *cam)
625 {
626         Camera *camn;
627         
628         camn= copy_libblock(cam);
629         id_us_plus((ID *)camn->ipo);
630
631         BPY_copy_scriptlink(&camn->scriptlink);
632         
633         return camn;
634 }
635
636
637
638 void make_local_camera(Camera *cam)
639 {
640         Object *ob;
641         Camera *camn;
642         int local=0, lib=0;
643
644         /* - only lib users: do nothing
645             * - only local users: set flag
646             * - mixed: make copy
647             */
648         
649         if(cam->id.lib==0) return;
650         if(cam->id.us==1) {
651                 cam->id.lib= 0;
652                 cam->id.flag= LIB_LOCAL;
653                 new_id(0, (ID *)cam, 0);
654                 return;
655         }
656         
657         ob= G.main->object.first;
658         while(ob) {
659                 if(ob->data==cam) {
660                         if(ob->id.lib) lib= 1;
661                         else local= 1;
662                 }
663                 ob= ob->id.next;
664         }
665         
666         if(local && lib==0) {
667                 cam->id.lib= 0;
668                 cam->id.flag= LIB_LOCAL;
669                 new_id(0, (ID *)cam, 0);
670         }
671         else if(local && lib) {
672                 camn= copy_camera(cam);
673                 camn->id.us= 0;
674                 
675                 ob= G.main->object.first;
676                 while(ob) {
677                         if(ob->data==cam) {
678                                 
679                                 if(ob->id.lib==0) {
680                                         ob->data= camn;
681                                         camn->id.us++;
682                                         cam->id.us--;
683                                 }
684                         }
685                         ob= ob->id.next;
686                 }
687         }
688 }
689
690 /* get the camera's dof value, takes the dof object into account */
691 float dof_camera(Object *ob)
692 {
693         Camera *cam = (Camera *)ob->data; 
694         if (ob->type != OB_CAMERA)
695                 return 0.0;
696         if (cam->dof_ob) {      
697                 /* too simple, better to return the distance on the view axis only
698                  * return VecLenf(ob->obmat[3], cam->dof_ob->obmat[3]); */
699                 float mat[4][4], obmat[4][4];
700                 
701                 Mat4CpyMat4(obmat, ob->obmat);
702                 Mat4Ortho(obmat);
703                 Mat4Invert(ob->imat, obmat);
704                 Mat4MulMat4(mat, cam->dof_ob->obmat, ob->imat);
705                 return fabs(mat[3][2]);
706         }
707         return cam->YF_dofdist;
708 }
709
710 void *add_lamp(char *name)
711 {
712         Lamp *la;
713         
714         la=  alloc_libblock(&G.main->lamp, ID_LA, name);
715         
716         la->r= la->g= la->b= la->k= 1.0;
717         la->haint= la->energy= 1.0;
718         la->dist= 20.0;
719         la->spotsize= 45.0;
720         la->spotblend= 0.15;
721         la->att2= 1.0;
722         la->mode= LA_SHAD_BUF;
723         la->bufsize= 512;
724         la->clipsta= 0.5;
725         la->clipend= 40.0;
726         la->shadspotsize= 45.0;
727         la->samp= 3;
728         la->bias= 1.0;
729         la->soft= 3.0;
730         la->ray_samp= la->ray_sampy= la->ray_sampz= 1; 
731         la->area_size=la->area_sizey=la->area_sizez= 1.0; 
732         la->buffers= 1;
733         la->buftype= LA_SHADBUF_HALFWAY;
734         la->ray_samp_method = LA_SAMP_HALTON;
735         la->adapt_thresh = 0.001;
736         la->preview=NULL;
737         la->falloff_type = LA_FALLOFF_INVLINEAR;
738         la->curfalloff = curvemapping_add(1, 0.0f, 1.0f, 1.0f, 0.0f);
739         la->sun_effect_type = 0;
740         la->horizon_brightness = 1.0;
741         la->spread = 1.0;
742         la->sun_brightness = 1.0;
743         la->sun_size = 1.0;
744         la->backscattered_light = 1.0;
745         la->atm_turbidity = 2.0;
746         la->atm_inscattering_factor = 1.0;
747         la->atm_extinction_factor = 1.0;
748         la->atm_distance_factor = 1.0;
749         la->sun_intensity = 1.0;
750         la->skyblendtype= MA_RAMP_ADD;
751         la->skyblendfac= 1.0f;
752
753         curvemapping_initialize(la->curfalloff);
754         return la;
755 }
756
757 Lamp *copy_lamp(Lamp *la)
758 {
759         Lamp *lan;
760         int a;
761         
762         lan= copy_libblock(la);
763
764         for(a=0; a<MAX_MTEX; a++) {
765                 if(lan->mtex[a]) {
766                         lan->mtex[a]= MEM_mallocN(sizeof(MTex), "copylamptex");
767                         memcpy(lan->mtex[a], la->mtex[a], sizeof(MTex));
768                         id_us_plus((ID *)lan->mtex[a]->tex);
769                 }
770         }
771         
772         lan->curfalloff = curvemapping_copy(la->curfalloff);
773         
774         id_us_plus((ID *)lan->ipo);
775
776         if (la->preview) lan->preview = BKE_previewimg_copy(la->preview);
777
778         BPY_copy_scriptlink(&la->scriptlink);
779         
780         return lan;
781 }
782
783 void make_local_lamp(Lamp *la)
784 {
785         Object *ob;
786         Lamp *lan;
787         int local=0, lib=0;
788
789         /* - only lib users: do nothing
790             * - only local users: set flag
791             * - mixed: make copy
792             */
793         
794         if(la->id.lib==0) return;
795         if(la->id.us==1) {
796                 la->id.lib= 0;
797                 la->id.flag= LIB_LOCAL;
798                 new_id(0, (ID *)la, 0);
799                 return;
800         }
801         
802         ob= G.main->object.first;
803         while(ob) {
804                 if(ob->data==la) {
805                         if(ob->id.lib) lib= 1;
806                         else local= 1;
807                 }
808                 ob= ob->id.next;
809         }
810         
811         if(local && lib==0) {
812                 la->id.lib= 0;
813                 la->id.flag= LIB_LOCAL;
814                 new_id(0, (ID *)la, 0);
815         }
816         else if(local && lib) {
817                 lan= copy_lamp(la);
818                 lan->id.us= 0;
819                 
820                 ob= G.main->object.first;
821                 while(ob) {
822                         if(ob->data==la) {
823                                 
824                                 if(ob->id.lib==0) {
825                                         ob->data= lan;
826                                         lan->id.us++;
827                                         la->id.us--;
828                                 }
829                         }
830                         ob= ob->id.next;
831                 }
832         }
833 }
834
835 void free_camera(Camera *ca)
836 {
837         BPY_free_scriptlink(&ca->scriptlink);
838 }
839
840 void free_lamp(Lamp *la)
841 {
842         MTex *mtex;
843         int a;
844
845         /* scriptlinks */
846                 
847         BPY_free_scriptlink(&la->scriptlink);
848
849         for(a=0; a<MAX_MTEX; a++) {
850                 mtex= la->mtex[a];
851                 if(mtex && mtex->tex) mtex->tex->id.us--;
852                 if(mtex) MEM_freeN(mtex);
853         }
854         la->ipo= 0;
855
856         curvemapping_free(la->curfalloff);
857         
858         BKE_previewimg_free(&la->preview);
859         BKE_icon_delete(&la->id);
860         la->id.icon_id = 0;
861 }
862
863 void *add_wave()
864 {
865         return 0;
866 }
867
868
869 /* *************************************************** */
870
871 static void *add_obdata_from_type(int type)
872 {
873         switch (type) {
874         case OB_MESH: G.totmesh++; return add_mesh("Mesh");
875         case OB_CURVE: G.totcurve++; return add_curve("Curve", OB_CURVE);
876         case OB_SURF: G.totcurve++; return add_curve("Surf", OB_SURF);
877         case OB_FONT: return add_curve("Text", OB_FONT);
878         case OB_MBALL: return add_mball("Meta");
879         case OB_CAMERA: return add_camera("Camera");
880         case OB_LAMP: G.totlamp++; return add_lamp("Lamp");
881         case OB_LATTICE: return add_lattice("Lattice");
882         case OB_WAVE: return add_wave();
883         case OB_ARMATURE: return add_armature("Armature");
884         case OB_EMPTY: return NULL;
885         default:
886                 printf("add_obdata_from_type: Internal error, bad type: %d\n", type);
887                 return NULL;
888         }
889 }
890
891 static char *get_obdata_defname(int type)
892 {
893         switch (type) {
894         case OB_MESH: return "Mesh";
895         case OB_CURVE: return "Curve";
896         case OB_SURF: return "Surf";
897         case OB_FONT: return "Font";
898         case OB_MBALL: return "Mball";
899         case OB_CAMERA: return "Camera";
900         case OB_LAMP: return "Lamp";
901         case OB_LATTICE: return "Lattice";
902         case OB_WAVE: return "Wave";
903         case OB_ARMATURE: return "Armature";
904         case OB_EMPTY: return "Empty";
905         default:
906                 printf("get_obdata_defname: Internal error, bad type: %d\n", type);
907                 return "Empty";
908         }
909 }
910
911 /* more general add: creates minimum required data, but without vertices etc. */
912 Object *add_only_object(int type, char *name)
913 {
914         Object *ob;
915
916         ob= alloc_libblock(&G.main->object, ID_OB, name);
917         G.totobj++;
918
919         /* default object vars */
920         ob->type= type;
921         /* ob->transflag= OB_QUAT; */
922
923 #if 0 /* not used yet */
924         QuatOne(ob->quat);
925         QuatOne(ob->dquat);
926 #endif 
927
928         ob->col[0]= ob->col[1]= ob->col[2]= 1.0;
929         ob->col[3]= 1.0;
930
931         ob->loc[0]= ob->loc[1]= ob->loc[2]= 0.0;
932         ob->rot[0]= ob->rot[1]= ob->rot[2]= 0.0;
933         ob->size[0]= ob->size[1]= ob->size[2]= 1.0;
934
935         Mat4One(ob->constinv);
936         Mat4One(ob->parentinv);
937         Mat4One(ob->obmat);
938         ob->dt= OB_SHADED;
939         if(U.flag & USER_MAT_ON_OB) ob->colbits= -1;
940         ob->empty_drawtype= OB_ARROWS;
941         ob->empty_drawsize= 1.0;
942
943         if(type==OB_CAMERA || type==OB_LAMP) {
944                 ob->trackflag= OB_NEGZ;
945                 ob->upflag= OB_POSY;
946         }
947         else {
948                 ob->trackflag= OB_POSY;
949                 ob->upflag= OB_POSZ;
950         }
951         ob->ipoflag = OB_OFFS_OB+OB_OFFS_PARENT;
952         ob->ipowin= ID_OB;      /* the ipowin shown */
953         ob->dupon= 1; ob->dupoff= 0;
954         ob->dupsta= 1; ob->dupend= 100;
955         ob->dupfacesca = 1.0;
956
957         /* Game engine defaults*/
958         ob->mass= ob->inertia= 1.0f;
959         ob->formfactor= 0.4f;
960         ob->damping= 0.04f;
961         ob->rdamping= 0.1f;
962         ob->anisotropicFriction[0] = 1.0f;
963         ob->anisotropicFriction[1] = 1.0f;
964         ob->anisotropicFriction[2] = 1.0f;
965         ob->gameflag= OB_PROP|OB_COLLISION;
966         ob->margin = 0.0;
967
968         /* NT fluid sim defaults */
969         ob->fluidsimFlag = 0;
970         ob->fluidsimSettings = NULL;
971
972         return ob;
973 }
974
975 /* general add: to G.scene, with layer from area and default name */
976 /* creates minimum required data, but without vertices etc. */
977 Object *add_object(int type)
978 {
979         Object *ob;
980         Base *base;
981         char name[32];
982
983         strcpy(name, get_obdata_defname(type));
984         ob = add_only_object(type, name);
985
986         ob->data= add_obdata_from_type(type);
987
988         ob->lay= G.scene->lay;
989
990         base= scene_add_base(G.scene, ob);
991         scene_select_base(G.scene, base);
992         ob->recalc |= OB_RECALC;
993
994         return ob;
995 }
996
997 void base_init_from_view3d(Base *base, View3D *v3d)
998 {
999         Object *ob= base->object;
1000         
1001         if (!v3d) {
1002                 /* no 3d view, this wont happen often */
1003                 base->lay = 1;
1004                 VECCOPY(ob->loc, G.scene->cursor);
1005                 
1006                 /* return now because v3d->viewquat isnt available */
1007                 return;
1008         } else if (v3d->localview) {
1009                 base->lay= ob->lay= v3d->layact + v3d->lay;
1010                 VECCOPY(ob->loc, v3d->cursor);
1011         } else {
1012                 base->lay= ob->lay= v3d->layact;
1013                 VECCOPY(ob->loc, G.scene->cursor);
1014         }
1015
1016         if (U.flag & USER_ADD_VIEWALIGNED) {
1017                 v3d->viewquat[0]= -v3d->viewquat[0];
1018
1019                 /* Quats arnt used yet */
1020                 /*if (ob->transflag & OB_QUAT) {
1021                         QUATCOPY(ob->quat, v3d->viewquat);
1022                 } else {*/
1023                         QuatToEul(v3d->viewquat, ob->rot);
1024                 /*}*/
1025                 v3d->viewquat[0]= -v3d->viewquat[0];
1026         }
1027 }
1028
1029 SoftBody *copy_softbody(SoftBody *sb)
1030 {
1031         SoftBody *sbn;
1032         
1033         if (sb==NULL) return(NULL);
1034         
1035         sbn= MEM_dupallocN(sb);
1036         sbn->totspring= sbn->totpoint= 0;
1037         sbn->bpoint= NULL;
1038         sbn->bspring= NULL;
1039         
1040         sbn->keys= NULL;
1041         sbn->totkey= sbn->totpointkey= 0;
1042         
1043         sbn->scratch= NULL;
1044
1045         sbn->pointcache= BKE_ptcache_copy(sb->pointcache);
1046
1047         return sbn;
1048 }
1049
1050 ParticleSystem *copy_particlesystem(ParticleSystem *psys)
1051 {
1052         ParticleSystem *psysn;
1053         ParticleData *pa;
1054         int a;
1055
1056         psysn= MEM_dupallocN(psys);
1057         psysn->particles= MEM_dupallocN(psys->particles);
1058         psysn->child= MEM_dupallocN(psys->child);
1059
1060         for(a=0, pa=psysn->particles; a<psysn->totpart; a++, pa++) {
1061                 if(pa->hair)
1062                         pa->hair= MEM_dupallocN(pa->hair);
1063                 if(pa->keys)
1064                         pa->keys= MEM_dupallocN(pa->keys);
1065         }
1066
1067         if(psys->soft) {
1068                 psysn->soft= copy_softbody(psys->soft);
1069                 psysn->soft->particles = psysn;
1070         }
1071         
1072         psysn->pathcache= NULL;
1073         psysn->childcache= NULL;
1074         psysn->edit= NULL;
1075         psysn->effectors.first= psysn->effectors.last= 0;
1076         
1077         psysn->pathcachebufs.first = psysn->pathcachebufs.last = NULL;
1078         psysn->childcachebufs.first = psysn->childcachebufs.last = NULL;
1079         psysn->reactevents.first = psysn->reactevents.last = NULL;
1080         psysn->renderdata = NULL;
1081         
1082         psysn->pointcache= BKE_ptcache_copy(psys->pointcache);
1083
1084         id_us_plus((ID *)psysn->part);
1085
1086         return psysn;
1087 }
1088
1089 void copy_object_particlesystems(Object *obn, Object *ob)
1090 {
1091         ParticleSystemModifierData *psmd;
1092         ParticleSystem *psys, *npsys;
1093         ModifierData *md;
1094
1095         obn->particlesystem.first= obn->particlesystem.last= NULL;
1096         for(psys=ob->particlesystem.first; psys; psys=psys->next) {
1097                 npsys= copy_particlesystem(psys);
1098
1099                 BLI_addtail(&obn->particlesystem, npsys);
1100
1101                 /* need to update particle modifiers too */
1102                 for(md=obn->modifiers.first; md; md=md->next) {
1103                         if(md->type==eModifierType_ParticleSystem) {
1104                                 psmd= (ParticleSystemModifierData*)md;
1105                                 if(psmd->psys==psys)
1106                                         psmd->psys= npsys;
1107                         }
1108                 }
1109         }
1110 }
1111
1112 void copy_object_softbody(Object *obn, Object *ob)
1113 {
1114         if(ob->soft)
1115                 obn->soft= copy_softbody(ob->soft);
1116 }
1117
1118 static void copy_object_pose(Object *obn, Object *ob)
1119 {
1120         bPoseChannel *chan;
1121         
1122         /* note: need to clear obn->pose pointer first, so that copy_pose works (otherwise there's a crash) */
1123         obn->pose= NULL;
1124         copy_pose(&obn->pose, ob->pose, 1);     /* 1 = copy constraints */
1125
1126         for (chan = obn->pose->chanbase.first; chan; chan=chan->next){
1127                 bConstraint *con;
1128                 
1129                 chan->flag &= ~(POSE_LOC|POSE_ROT|POSE_SIZE);
1130                 
1131                 for (con= chan->constraints.first; con; con= con->next) {
1132                         bConstraintTypeInfo *cti= constraint_get_typeinfo(con);
1133                         ListBase targets = {NULL, NULL};
1134                         bConstraintTarget *ct;
1135                         
1136                         if(con->ipo) {
1137                                 IpoCurve *icu;
1138                                 for(icu= con->ipo->curve.first; icu; icu= icu->next) {
1139                                         if(icu->driver && icu->driver->ob==ob)
1140                                                 icu->driver->ob= obn;
1141                                 }
1142                         }
1143                         
1144                         if (cti && cti->get_constraint_targets) {
1145                                 cti->get_constraint_targets(con, &targets);
1146                                 
1147                                 for (ct= targets.first; ct; ct= ct->next) {
1148                                         if (ct->tar == ob)
1149                                                 ct->tar = obn;
1150                                 }
1151                                 
1152                                 if (cti->flush_constraint_targets)
1153                                         cti->flush_constraint_targets(con, &targets, 0);
1154                         }
1155                 }
1156         }
1157 }
1158
1159 Object *copy_object(Object *ob)
1160 {
1161         Object *obn;
1162         ModifierData *md;
1163         int a;
1164
1165         obn= copy_libblock(ob);
1166         
1167         if(ob->totcol) {
1168                 obn->mat= MEM_dupallocN(ob->mat);
1169         }
1170         
1171         if(ob->bb) obn->bb= MEM_dupallocN(ob->bb);
1172         obn->path= NULL;
1173         obn->flag &= ~OB_FROMGROUP;
1174         
1175         obn->modifiers.first = obn->modifiers.last= NULL;
1176         
1177         for (md=ob->modifiers.first; md; md=md->next) {
1178                 ModifierData *nmd = modifier_new(md->type);
1179                 modifier_copyData(md, nmd);
1180                 BLI_addtail(&obn->modifiers, nmd);
1181         }
1182         
1183         BPY_copy_scriptlink(&ob->scriptlink);
1184         
1185         copy_properties(&obn->prop, &ob->prop);
1186         copy_sensors(&obn->sensors, &ob->sensors);
1187         copy_controllers(&obn->controllers, &ob->controllers);
1188         copy_actuators(&obn->actuators, &ob->actuators);
1189         
1190         if(ob->pose) {
1191                 copy_object_pose(obn, ob);
1192                 /* backwards compat... non-armatures can get poses in older files? */
1193                 if(ob->type==OB_ARMATURE)
1194                         armature_rebuild_pose(obn, obn->data);
1195         }
1196         copy_defgroups(&obn->defbase, &ob->defbase);
1197         copy_nlastrips(&obn->nlastrips, &ob->nlastrips);
1198         copy_constraints (&obn->constraints, &ob->constraints);
1199
1200         clone_constraint_channels (&obn->constraintChannels, &ob->constraintChannels);
1201
1202         /* increase user numbers */
1203         id_us_plus((ID *)obn->data);
1204         id_us_plus((ID *)obn->ipo);
1205         id_us_plus((ID *)obn->action);
1206         id_us_plus((ID *)obn->dup_group);
1207
1208         for(a=0; a<obn->totcol; a++) id_us_plus((ID *)obn->mat[a]);
1209         
1210         obn->disp.first= obn->disp.last= NULL;
1211         
1212         if(ob->pd){
1213                 obn->pd= MEM_dupallocN(ob->pd);
1214                 if(obn->pd->tex)
1215                         id_us_plus(&(obn->pd->tex->id));
1216         }
1217         obn->soft= copy_softbody(ob->soft);
1218
1219         copy_object_particlesystems(obn, ob);
1220         
1221         obn->derivedDeform = NULL;
1222         obn->derivedFinal = NULL;
1223
1224 #ifdef WITH_VERSE
1225         obn->vnode = NULL;
1226 #endif
1227
1228         obn->gpulamp.first = obn->gpulamp.last = NULL;
1229
1230         return obn;
1231 }
1232
1233 void expand_local_object(Object *ob)
1234 {
1235         bActionStrip *strip;
1236         ParticleSystem *psys;
1237         int a;
1238         
1239         id_lib_extern((ID *)ob->action);
1240         id_lib_extern((ID *)ob->ipo);
1241         id_lib_extern((ID *)ob->data);
1242         id_lib_extern((ID *)ob->dup_group);
1243         
1244         for(a=0; a<ob->totcol; a++) {
1245                 id_lib_extern((ID *)ob->mat[a]);
1246         }
1247         for (strip=ob->nlastrips.first; strip; strip=strip->next) {
1248                 id_lib_extern((ID *)strip->act);
1249         }
1250         for(psys=ob->particlesystem.first; psys; psys=psys->next)
1251                 id_lib_extern((ID *)psys->part);
1252 }
1253
1254 void make_local_object(Object *ob)
1255 {
1256         Object *obn;
1257         Scene *sce;
1258         Base *base;
1259         int local=0, lib=0;
1260
1261         /* - only lib users: do nothing
1262             * - only local users: set flag
1263             * - mixed: make copy
1264             */
1265         
1266         if(ob->id.lib==NULL) return;
1267         
1268         ob->proxy= ob->proxy_from= NULL;
1269         
1270         if(ob->id.us==1) {
1271                 ob->id.lib= NULL;
1272                 ob->id.flag= LIB_LOCAL;
1273                 new_id(0, (ID *)ob, 0);
1274
1275         }
1276         else {
1277                 sce= G.main->scene.first;
1278                 while(sce) {
1279                         base= sce->base.first;
1280                         while(base) {
1281                                 if(base->object==ob) {
1282                                         if(sce->id.lib) lib++;
1283                                         else local++;
1284                                         break;
1285                                 }
1286                                 base= base->next;
1287                         }
1288                         sce= sce->id.next;
1289                 }
1290                 
1291                 if(local && lib==0) {
1292                         ob->id.lib= 0;
1293                         ob->id.flag= LIB_LOCAL;
1294                         new_id(0, (ID *)ob, 0);
1295                 }
1296                 else if(local && lib) {
1297                         obn= copy_object(ob);
1298                         obn->id.us= 0;
1299                         
1300                         sce= G.main->scene.first;
1301                         while(sce) {
1302                                 if(sce->id.lib==0) {
1303                                         base= sce->base.first;
1304                                         while(base) {
1305                                                 if(base->object==ob) {
1306                                                         base->object= obn;
1307                                                         obn->id.us++;
1308                                                         ob->id.us--;
1309                                                 }
1310                                                 base= base->next;
1311                                         }
1312                                 }
1313                                 sce= sce->id.next;
1314                         }
1315                 }
1316         }
1317         
1318         expand_local_object(ob);
1319 }
1320
1321 /* *************** PROXY **************** */
1322
1323 /* when you make proxy, ensure the exposed layers are extern */
1324 void armature_set_id_extern(Object *ob)
1325 {
1326         bArmature *arm= ob->data;
1327         bPoseChannel *pchan;
1328         int lay= arm->layer_protected;
1329         
1330         for (pchan = ob->pose->chanbase.first; pchan; pchan=pchan->next) {
1331                 if(!(pchan->bone->layer & lay))
1332                         id_lib_extern((ID *)pchan->custom);
1333         }
1334                         
1335 }
1336
1337 /* proxy rule: lib_object->proxy_from == the one we borrow from, set temporally while object_update */
1338 /*             local_object->proxy == pointer to library object, saved in files and read */
1339 /*             local_object->proxy_group == pointer to group dupli-object, saved in files and read */
1340
1341 void object_make_proxy(Object *ob, Object *target, Object *gob)
1342 {
1343         /* paranoia checks */
1344         if(ob->id.lib || target->id.lib==NULL) {
1345                 printf("cannot make proxy\n");
1346                 return;
1347         }
1348         
1349         ob->proxy= target;
1350         ob->proxy_group= gob;
1351         id_lib_extern(&target->id);
1352         
1353         ob->recalc= target->recalc= OB_RECALC;
1354         
1355         /* copy transform */
1356         if(gob) {
1357                 VECCOPY(ob->loc, gob->loc);
1358                 VECCOPY(ob->rot, gob->rot);
1359                 VECCOPY(ob->size, gob->size);
1360                 
1361                 group_tag_recalc(gob->dup_group);
1362         }
1363         else {
1364                 VECCOPY(ob->loc, target->loc);
1365                 VECCOPY(ob->rot, target->rot);
1366                 VECCOPY(ob->size, target->size);
1367         }
1368         
1369         ob->parent= target->parent;     /* libdata */
1370         Mat4CpyMat4(ob->parentinv, target->parentinv);
1371         ob->ipo= target->ipo;           /* libdata */
1372         
1373         /* skip constraints, constraintchannels, nla? */
1374         
1375         /* set object type and link to data */
1376         ob->type= target->type;
1377         ob->data= target->data;
1378         id_us_plus((ID *)ob->data);             /* ensures lib data becomes LIB_EXTERN */
1379         
1380         /* copy material and index information */
1381         ob->actcol= ob->totcol= 0;
1382         if(ob->mat) MEM_freeN(ob->mat);
1383         ob->mat = NULL;
1384         if ((target->totcol) && (target->mat) && OB_SUPPORT_MATERIAL(ob)) {
1385                 int i;
1386                 ob->colbits = target->colbits;
1387                 
1388                 ob->actcol= target->actcol;
1389                 ob->totcol= target->totcol;
1390                 
1391                 ob->mat = MEM_dupallocN(target->mat);
1392                 for(i=0; i<target->totcol; i++) {
1393                         /* dont need to run test_object_materials since we know this object is new and not used elsewhere */
1394                         id_us_plus((ID *)ob->mat[i]); 
1395                 }
1396         }
1397         
1398         /* type conversions */
1399         if(target->type == OB_ARMATURE) {
1400                 copy_object_pose(ob, target);   /* data copy, object pointers in constraints */
1401                 rest_pose(ob->pose);                    /* clear all transforms in channels */
1402                 armature_rebuild_pose(ob, ob->data);    /* set all internal links */
1403                 
1404                 armature_set_id_extern(ob);
1405         }
1406 }
1407
1408
1409 /* *************** CALC ****************** */
1410
1411 /* there is also a timing calculation in drawobject() */
1412
1413 float bluroffs= 0.0f, fieldoffs= 0.0f;
1414 int no_speed_curve= 0;
1415
1416 /* ugly calls from render */
1417 void set_mblur_offs(float blur)
1418 {
1419         bluroffs= blur;
1420 }
1421
1422 void set_field_offs(float field)
1423 {
1424         fieldoffs= field;
1425 }
1426
1427 void disable_speed_curve(int val)
1428 {
1429         no_speed_curve= val;
1430 }
1431
1432 /* ob can be NULL */
1433 float bsystem_time(Object *ob, float cfra, float ofs)
1434 {
1435         /* returns float ( see frame_to_float in ipo.c) */
1436         
1437         /* bluroffs and fieldoffs are ugly globals that are set by render */
1438         cfra+= bluroffs+fieldoffs;
1439
1440         /* global time */
1441         cfra*= G.scene->r.framelen;     
1442         
1443         if (ob) {
1444                 if (no_speed_curve==0 && ob->ipo)
1445                         cfra= calc_ipo_time(ob->ipo, cfra);
1446                 
1447                 /* ofset frames */
1448                 if ((ob->ipoflag & OB_OFFS_PARENT) && (ob->partype & PARSLOW)==0) 
1449                         cfra-= give_timeoffset(ob);
1450         }
1451         
1452         cfra-= ofs;
1453
1454         return cfra;
1455 }
1456
1457 void object_to_mat3(Object *ob, float mat[][3]) /* no parent */
1458 {
1459         float smat[3][3], vec[3];
1460         float rmat[3][3];
1461         /*float q1[4];*/
1462         
1463         /* size */
1464         if(ob->ipo) {
1465                 vec[0]= ob->size[0]+ob->dsize[0];
1466                 vec[1]= ob->size[1]+ob->dsize[1];
1467                 vec[2]= ob->size[2]+ob->dsize[2];
1468                 SizeToMat3(vec, smat);
1469         }
1470         else {
1471                 SizeToMat3(ob->size, smat);
1472         }
1473
1474         /* rot */
1475         /* Quats arnt used yet */
1476         /*if(ob->transflag & OB_QUAT) {
1477                 if(ob->ipo) {
1478                         QuatMul(q1, ob->quat, ob->dquat);
1479                         QuatToMat3(q1, rmat);
1480                 }
1481                 else {
1482                         QuatToMat3(ob->quat, rmat);
1483                 }
1484         }
1485         else {*/
1486                 if(ob->ipo) {
1487                         vec[0]= ob->rot[0]+ob->drot[0];
1488                         vec[1]= ob->rot[1]+ob->drot[1];
1489                         vec[2]= ob->rot[2]+ob->drot[2];
1490                         EulToMat3(vec, rmat);
1491                 }
1492                 else {
1493                         EulToMat3(ob->rot, rmat);
1494                 }
1495         /*}*/
1496         Mat3MulMat3(mat, rmat, smat);
1497 }
1498
1499 void object_to_mat4(Object *ob, float mat[][4])
1500 {
1501         float tmat[3][3];
1502         
1503         object_to_mat3(ob, tmat);
1504         
1505         Mat4CpyMat3(mat, tmat);
1506         
1507         VECCOPY(mat[3], ob->loc);
1508         if(ob->ipo) {
1509                 mat[3][0]+= ob->dloc[0];
1510                 mat[3][1]+= ob->dloc[1];
1511                 mat[3][2]+= ob->dloc[2];
1512         }
1513 }
1514
1515 int enable_cu_speed= 1;
1516
1517 static void ob_parcurve(Object *ob, Object *par, float mat[][4])
1518 {
1519         Curve *cu;
1520         float q[4], vec[4], dir[3], quat[4], x1, ctime;
1521         float timeoffs = 0.0, sf_orig = 0.0;
1522         
1523         Mat4One(mat);
1524         
1525         cu= par->data;
1526         if(cu->path==NULL || cu->path->data==NULL) /* only happens on reload file, but violates depsgraph still... fix! */
1527                 makeDispListCurveTypes(par, 0);
1528         if(cu->path==NULL) return;
1529         
1530         /* exception, timeoffset is regarded as distance offset */
1531         if(cu->flag & CU_OFFS_PATHDIST) {
1532                 timeoffs = give_timeoffset(ob);
1533                 SWAP(float, sf_orig, ob->sf);
1534         }
1535         
1536         /* catch exceptions: feature for nla stride editing */
1537         if(ob->ipoflag & OB_DISABLE_PATH) {
1538                 ctime= 0.0f;
1539         }
1540         /* catch exceptions: curve paths used as a duplicator */
1541         else if(enable_cu_speed) {
1542                 ctime= bsystem_time(ob, (float)G.scene->r.cfra, 0.0);
1543                 
1544                 if(calc_ipo_spec(cu->ipo, CU_SPEED, &ctime)==0) {
1545                         ctime /= cu->pathlen;
1546                         CLAMP(ctime, 0.0, 1.0);
1547                 }
1548         }
1549         else {
1550                 ctime= G.scene->r.cfra - give_timeoffset(ob);
1551                 ctime /= cu->pathlen;
1552                 
1553                 CLAMP(ctime, 0.0, 1.0);
1554         }
1555         
1556         /* time calculus is correct, now apply distance offset */
1557         if(cu->flag & CU_OFFS_PATHDIST) {
1558                 ctime += timeoffs/cu->path->totdist;
1559
1560                 /* restore */
1561                 SWAP(float, sf_orig, ob->sf);
1562         }
1563         
1564         
1565         /* vec: 4 items! */
1566         if( where_on_path(par, ctime, vec, dir) ) {
1567
1568                 if(cu->flag & CU_FOLLOW) {
1569                         vectoquat(dir, ob->trackflag, ob->upflag, quat);
1570                         
1571                         /* the tilt */
1572                         Normalize(dir);
1573                         q[0]= (float)cos(0.5*vec[3]);
1574                         x1= (float)sin(0.5*vec[3]);
1575                         q[1]= -x1*dir[0];
1576                         q[2]= -x1*dir[1];
1577                         q[3]= -x1*dir[2];
1578                         QuatMul(quat, q, quat);
1579                         
1580                         QuatToMat4(quat, mat);
1581                 }
1582                 
1583                 VECCOPY(mat[3], vec);
1584                 
1585         }
1586 }
1587
1588 static void ob_parbone(Object *ob, Object *par, float mat[][4])
1589 {       
1590         bPoseChannel *pchan;
1591         bArmature *arm;
1592         float vec[3];
1593         
1594         arm=get_armature(par);
1595         if (!arm) {
1596                 Mat4One(mat);
1597                 return;
1598         }
1599         
1600         /* Make sure the bone is still valid */
1601         pchan= get_pose_channel(par->pose, ob->parsubstr);
1602         if (!pchan){
1603                 printf ("Object %s with Bone parent: bone %s doesn't exist\n", ob->id.name+2, ob->parsubstr);
1604                 Mat4One(mat);
1605                 return;
1606         }
1607
1608         /* get bone transform */
1609         Mat4CpyMat4(mat, pchan->pose_mat);
1610
1611         /* but for backwards compatibility, the child has to move to the tail */
1612         VECCOPY(vec, mat[1]);
1613         VecMulf(vec, pchan->bone->length);
1614         VecAddf(mat[3], mat[3], vec);
1615 }
1616
1617 static void give_parvert(Object *par, int nr, float *vec)
1618 {
1619         int a, count;
1620         
1621         vec[0]=vec[1]=vec[2]= 0.0f;
1622         
1623         if(par->type==OB_MESH) {
1624                 if(G.obedit && (par->data==G.obedit->data)) {
1625                         EditMesh *em = G.editMesh;
1626                         EditVert *eve;
1627                         
1628                         for(eve= em->verts.first; eve; eve= eve->next) {
1629                                 if(eve->keyindex==nr) {
1630                                         memcpy(vec, eve->co, sizeof(float)*3);
1631                                         break;
1632                                 }
1633                         }
1634                 }
1635                 else {
1636                         DerivedMesh *dm = par->derivedFinal;
1637                         
1638                         if(dm) {
1639                                 int i, count = 0, numVerts = dm->getNumVerts(dm);
1640                                 int *index = (int *)dm->getVertDataArray(dm, CD_ORIGINDEX);
1641                                 float co[3];
1642
1643                                 /* get the average of all verts with (original index == nr) */
1644                                 for(i = 0; i < numVerts; ++i, ++index) {
1645                                         if(*index == nr) {
1646                                                 dm->getVertCo(dm, i, co);
1647                                                 VecAddf(vec, vec, co);
1648                                                 count++;
1649                                         }
1650                                 }
1651
1652                                 if (count==0) {
1653                                         /* keep as 0,0,0 */
1654                                 } else if(count > 0) {
1655                                         VecMulf(vec, 1.0f / count);
1656                                 } else {
1657                                         /* use first index if its out of range */
1658                                         dm->getVertCo(dm, 0, vec);
1659                                 }
1660                         }
1661                 }
1662         }
1663         else if ELEM(par->type, OB_CURVE, OB_SURF) {
1664                 Nurb *nu;
1665                 Curve *cu;
1666                 BPoint *bp;
1667                 BezTriple *bezt;
1668                 int found= 0;
1669                 
1670                 cu= par->data;
1671                 nu= cu->nurb.first;
1672                 if(par==G.obedit) nu= editNurb.first;
1673                 
1674                 count= 0;
1675                 while(nu && !found) {
1676                         if((nu->type & 7)==CU_BEZIER) {
1677                                 bezt= nu->bezt;
1678                                 a= nu->pntsu;
1679                                 while(a--) {
1680                                         if(count==nr) {
1681                                                 found= 1;
1682                                                 VECCOPY(vec, bezt->vec[1]);
1683                                                 break;
1684                                         }
1685                                         count++;
1686                                         bezt++;
1687                                 }
1688                         }
1689                         else {
1690                                 bp= nu->bp;
1691                                 a= nu->pntsu*nu->pntsv;
1692                                 while(a--) {
1693                                         if(count==nr) {
1694                                                 found= 1;
1695                                                 memcpy(vec, bp->vec, sizeof(float)*3);
1696                                                 break;
1697                                         }
1698                                         count++;
1699                                         bp++;
1700                                 }
1701                         }
1702                         nu= nu->next;
1703                 }
1704
1705         }
1706         else if(par->type==OB_LATTICE) {
1707                 Lattice *latt= par->data;
1708                 BPoint *bp;
1709                 DispList *dl = find_displist(&par->disp, DL_VERTS);
1710                 float *co = dl?dl->verts:NULL;
1711                 
1712                 if(par==G.obedit) latt= editLatt;
1713                 
1714                 a= latt->pntsu*latt->pntsv*latt->pntsw;
1715                 count= 0;
1716                 bp= latt->def;
1717                 while(a--) {
1718                         if(count==nr) {
1719                                 if(co)
1720                                         memcpy(vec, co, 3*sizeof(float));
1721                                 else
1722                                         memcpy(vec, bp->vec, 3*sizeof(float));
1723                                 break;
1724                         }
1725                         count++;
1726                         if(co) co+= 3;
1727                         else bp++;
1728                 }
1729         }
1730 }
1731
1732 static void ob_parvert3(Object *ob, Object *par, float mat[][4])
1733 {
1734         float cmat[3][3], v1[3], v2[3], v3[3], q[4];
1735
1736         /* in local ob space */
1737         Mat4One(mat);
1738         
1739         if ELEM4(par->type, OB_MESH, OB_SURF, OB_CURVE, OB_LATTICE) {
1740                 
1741                 give_parvert(par, ob->par1, v1);
1742                 give_parvert(par, ob->par2, v2);
1743                 give_parvert(par, ob->par3, v3);
1744                                 
1745                 triatoquat(v1, v2, v3, q);
1746                 QuatToMat3(q, cmat);
1747                 Mat4CpyMat3(mat, cmat);
1748                 
1749                 if(ob->type==OB_CURVE) {
1750                         VECCOPY(mat[3], v1);
1751                 }
1752                 else {
1753                         VecAddf(mat[3], v1, v2);
1754                         VecAddf(mat[3], mat[3], v3);
1755                         VecMulf(mat[3], 0.3333333f);
1756                 }
1757         }
1758 }
1759
1760 static int no_parent_ipo=0;
1761 void set_no_parent_ipo(int val)
1762 {
1763         no_parent_ipo= val;
1764 }
1765
1766 static int during_script_flag=0;
1767 void disable_where_script(short on)
1768 {
1769         during_script_flag= on;
1770 }
1771
1772 int during_script(void) {
1773         return during_script_flag;
1774 }
1775
1776 static int during_scriptlink_flag=0;
1777 void disable_where_scriptlink(short on)
1778 {
1779         during_scriptlink_flag= on;
1780 }
1781
1782 int during_scriptlink(void) {
1783         return during_scriptlink_flag;
1784 }
1785
1786 void where_is_object_time(Object *ob, float ctime)
1787 {
1788         float *fp1, *fp2, slowmat[4][4] = MAT4_UNITY;
1789         float stime, fac1, fac2, vec[3];
1790         int a;
1791         int pop; 
1792         
1793         /* new version: correct parent+vertexparent and track+parent */
1794         /* this one only calculates direct attached parent and track */
1795         /* is faster, but should keep track of timeoffs */
1796         
1797         if(ob==NULL) return;
1798         
1799         /* this is needed to be able to grab objects with ipos, otherwise it always freezes them */
1800         stime= bsystem_time(ob, ctime, 0.0);
1801         if(stime != ob->ctime) {
1802                 
1803                 ob->ctime= stime;
1804                 
1805                 if(ob->ipo) {
1806                         calc_ipo(ob->ipo, stime);
1807                         execute_ipo((ID *)ob, ob->ipo);
1808                 }
1809                 else 
1810                         do_all_object_actions(ob);
1811                 
1812                 /* do constraint ipos ..., note it needs stime (0 = all ipos) */
1813                 do_constraint_channels(&ob->constraints, &ob->constraintChannels, stime, 0);
1814         }
1815         else {
1816                 /* but, the drivers have to be done */
1817                 if(ob->ipo) do_ob_ipodrivers(ob, ob->ipo, stime);
1818                 /* do constraint ipos ..., note it needs stime (1 = only drivers ipos) */
1819                 do_constraint_channels(&ob->constraints, &ob->constraintChannels, stime, 1);
1820         }
1821         
1822         if(ob->parent) {
1823                 Object *par= ob->parent;
1824                 
1825                 if(ob->ipoflag & OB_OFFS_PARENT) ctime-= give_timeoffset(ob);
1826                 
1827                 /* hurms, code below conflicts with depgraph... (ton) */
1828                 /* and even worse, it gives bad effects for NLA stride too (try ctime != par->ctime, with MBlur) */
1829                 pop= 0;
1830                 if(no_parent_ipo==0 && stime != par->ctime) {
1831                 
1832                         // only for ipo systems? 
1833                         pushdata(par, sizeof(Object));
1834                         pop= 1;
1835                         
1836                         if(par->proxy_from);    // was a copied matrix, no where_is! bad...
1837                         else where_is_object_time(par, ctime);
1838                 }
1839                 
1840                 solve_parenting(ob, par, ob->obmat, slowmat, 0);
1841
1842                 if(pop) {
1843                         poplast(par);
1844                 }
1845                 
1846                 if(ob->partype & PARSLOW) {
1847                         // include framerate
1848
1849                         fac1= (1.0f/(1.0f+ fabs(give_timeoffset(ob))));
1850                         if(fac1>=1.0) return;
1851                         fac2= 1.0f-fac1;
1852                         
1853                         fp1= ob->obmat[0];
1854                         fp2= slowmat[0];
1855                         for(a=0; a<16; a++, fp1++, fp2++) {
1856                                 fp1[0]= fac1*fp1[0] + fac2*fp2[0];
1857                         }
1858                 }
1859         
1860         }
1861         else {
1862                 object_to_mat4(ob, ob->obmat);
1863         }
1864
1865         /* Handle tracking */
1866         if(ob->track) {
1867                 if( ctime != ob->track->ctime) where_is_object_time(ob->track, ctime);
1868                 solve_tracking (ob, ob->track->obmat);
1869                 
1870         }
1871
1872         /* solve constraints */
1873         if (ob->constraints.first) {
1874                 bConstraintOb *cob;
1875                 
1876                 cob= constraints_make_evalob(ob, NULL, CONSTRAINT_OBTYPE_OBJECT);
1877                 
1878                 /* constraints need ctime, not stime. Some call where_is_object_time and bsystem_time */
1879                 solve_constraints (&ob->constraints, cob, ctime);
1880                 
1881                 constraints_clear_evalob(cob);
1882         }
1883         
1884         if(ob->scriptlink.totscript && !during_script()) {
1885                 if (G.f & G_DOSCRIPTLINKS) BPY_do_pyscript((ID *)ob, SCRIPT_REDRAW);
1886         }
1887         
1888         /* set negative scale flag in object */
1889         Crossf(vec, ob->obmat[0], ob->obmat[1]);
1890         if( Inpf(vec, ob->obmat[2]) < 0.0 ) ob->transflag |= OB_NEG_SCALE;
1891         else ob->transflag &= ~OB_NEG_SCALE;
1892 }
1893
1894 static void solve_parenting (Object *ob, Object *par, float obmat[][4], float slowmat[][4], int simul)
1895 {
1896         float totmat[4][4];
1897         float tmat[4][4];
1898         float locmat[4][4];
1899         float vec[3];
1900         int ok;
1901
1902         object_to_mat4(ob, locmat);
1903         
1904         if(ob->partype & PARSLOW) Mat4CpyMat4(slowmat, obmat);
1905         
1906
1907         switch(ob->partype & PARTYPE) {
1908         case PAROBJECT:
1909                 ok= 0;
1910                 if(par->type==OB_CURVE) {
1911                         if( ((Curve *)par->data)->flag & CU_PATH ) {
1912                                 ob_parcurve(ob, par, tmat);
1913                                 ok= 1;
1914                         }
1915                 }
1916                 
1917                 if(ok) Mat4MulSerie(totmat, par->obmat, tmat, 
1918                         NULL, NULL, NULL, NULL, NULL, NULL);
1919                 else Mat4CpyMat4(totmat, par->obmat);
1920                 
1921                 break;
1922         case PARBONE:
1923                 ob_parbone(ob, par, tmat);
1924                 Mat4MulSerie(totmat, par->obmat, tmat,         
1925                         NULL, NULL, NULL, NULL, NULL, NULL);
1926                 break;
1927                 
1928         case PARVERT1:
1929                 Mat4One(totmat);
1930                 if (simul){
1931                         VECCOPY(totmat[3], par->obmat[3]);
1932                 }
1933                 else{
1934                         give_parvert(par, ob->par1, vec);
1935                         VecMat4MulVecfl(totmat[3], par->obmat, vec);
1936                 }
1937                 break;
1938         case PARVERT3:
1939                 ob_parvert3(ob, par, tmat);
1940                 
1941                 Mat4MulSerie(totmat, par->obmat, tmat,         
1942                         NULL, NULL, NULL, NULL, NULL, NULL);
1943                 break;
1944                 
1945         case PARSKEL:
1946                 Mat4CpyMat4(totmat, par->obmat);
1947                 break;
1948         }
1949         
1950         // total 
1951         Mat4MulSerie(tmat, totmat, ob->parentinv,         
1952                 NULL, NULL, NULL, NULL, NULL, NULL);
1953         Mat4MulSerie(obmat, tmat, locmat,         
1954                 NULL, NULL, NULL, NULL, NULL, NULL);
1955         
1956         if (simul) {
1957
1958         }
1959         else{
1960                 // external usable originmat 
1961                 Mat3CpyMat4(originmat, tmat);
1962                 
1963                 // origin, voor help line
1964                 if( (ob->partype & 15)==PARSKEL ) {
1965                         VECCOPY(ob->orig, par->obmat[3]);
1966                 }
1967                 else {
1968                         VECCOPY(ob->orig, totmat[3]);
1969                 }
1970         }
1971
1972 }
1973 void solve_tracking (Object *ob, float targetmat[][4])
1974 {
1975         float quat[4];
1976         float vec[3];
1977         float totmat[3][3];
1978         float tmat[4][4];
1979         
1980         VecSubf(vec, ob->obmat[3], targetmat[3]);
1981         vectoquat(vec, ob->trackflag, ob->upflag, quat);
1982         QuatToMat3(quat, totmat);
1983         
1984         if(ob->parent && (ob->transflag & OB_POWERTRACK)) {
1985                 /* 'temporal' : clear parent info */
1986                 object_to_mat4(ob, tmat);
1987                 tmat[0][3]= ob->obmat[0][3];
1988                 tmat[1][3]= ob->obmat[1][3];
1989                 tmat[2][3]= ob->obmat[2][3];
1990                 tmat[3][0]= ob->obmat[3][0];
1991                 tmat[3][1]= ob->obmat[3][1];
1992                 tmat[3][2]= ob->obmat[3][2];
1993                 tmat[3][3]= ob->obmat[3][3];
1994         }
1995         else Mat4CpyMat4(tmat, ob->obmat);
1996         
1997         Mat4MulMat34(ob->obmat, totmat, tmat);
1998
1999 }
2000
2001 void where_is_object(Object *ob)
2002 {
2003         where_is_object_time(ob, (float)G.scene->r.cfra);
2004 }
2005
2006
2007 void where_is_object_simul(Object *ob)
2008 /* was written for the old game engine (until 2.04) */
2009 /* It seems that this function is only called
2010 for a lamp that is the child of another object */
2011 {
2012         Object *par;
2013         Ipo *ipo;
2014         float *fp1, *fp2;
2015         float slowmat[4][4];
2016         float fac1, fac2;
2017         int a;
2018         
2019         /* NO TIMEOFFS */
2020         
2021         /* no ipo! (because of dloc and realtime-ipos) */
2022         ipo= ob->ipo;
2023         ob->ipo= NULL;
2024
2025         if(ob->parent) {
2026                 par= ob->parent;
2027                 
2028                 solve_parenting(ob, par, ob->obmat, slowmat, 1);
2029
2030                 if(ob->partype & PARSLOW) {
2031
2032                         fac1= (float)(1.0/(1.0+ fabs(give_timeoffset(ob))));
2033                         fac2= 1.0f-fac1;
2034                         fp1= ob->obmat[0];
2035                         fp2= slowmat[0];
2036                         for(a=0; a<16; a++, fp1++, fp2++) {
2037                                 fp1[0]= fac1*fp1[0] + fac2*fp2[0];
2038                         }
2039                 }
2040                 
2041         }
2042         else {
2043                 object_to_mat4(ob, ob->obmat);
2044         }
2045         
2046         if(ob->track) 
2047                 solve_tracking(ob, ob->track->obmat);
2048
2049         /* solve constraints */
2050         if (ob->constraints.first) {
2051                 bConstraintOb *cob;
2052                 
2053                 cob= constraints_make_evalob(ob, NULL, CONSTRAINT_OBTYPE_OBJECT);
2054                 solve_constraints (&ob->constraints, cob, G.scene->r.cfra);
2055                 constraints_clear_evalob(cob);
2056         }
2057         
2058         /*  WATCH IT!!! */
2059         ob->ipo= ipo;
2060 }
2061
2062 /* for calculation of the inverse parent transform, only used for editor */
2063 void what_does_parent(Object *ob)
2064 {
2065         clear_workob();
2066         Mat4One(workob.obmat);
2067         Mat4One(workob.parentinv);
2068         Mat4One(workob.constinv);
2069         workob.parent= ob->parent;
2070         workob.track= ob->track;
2071
2072         workob.trackflag= ob->trackflag;
2073         workob.upflag= ob->upflag;
2074         
2075         workob.partype= ob->partype;
2076         workob.par1= ob->par1;
2077         workob.par2= ob->par2;
2078         workob.par3= ob->par3;
2079
2080         workob.constraints.first = ob->constraints.first;
2081         workob.constraints.last = ob->constraints.last;
2082
2083         strcpy(workob.parsubstr, ob->parsubstr); 
2084
2085         where_is_object(&workob);
2086 }
2087
2088 BoundBox *unit_boundbox()
2089 {
2090         BoundBox *bb;
2091         float min[3] = {-1,-1,-1}, max[3] = {-1,-1,-1};
2092
2093         bb= MEM_callocN(sizeof(BoundBox), "bb");
2094         boundbox_set_from_min_max(bb, min, max);
2095         
2096         return bb;
2097 }
2098
2099 void boundbox_set_from_min_max(BoundBox *bb, float min[3], float max[3])
2100 {
2101         bb->vec[0][0]=bb->vec[1][0]=bb->vec[2][0]=bb->vec[3][0]= min[0];
2102         bb->vec[4][0]=bb->vec[5][0]=bb->vec[6][0]=bb->vec[7][0]= max[0];
2103         
2104         bb->vec[0][1]=bb->vec[1][1]=bb->vec[4][1]=bb->vec[5][1]= min[1];
2105         bb->vec[2][1]=bb->vec[3][1]=bb->vec[6][1]=bb->vec[7][1]= max[1];
2106
2107         bb->vec[0][2]=bb->vec[3][2]=bb->vec[4][2]=bb->vec[7][2]= min[2];
2108         bb->vec[1][2]=bb->vec[2][2]=bb->vec[5][2]=bb->vec[6][2]= max[2];
2109 }
2110
2111 BoundBox *object_get_boundbox(Object *ob)
2112 {
2113         BoundBox *bb= NULL;
2114         
2115         if(ob->type==OB_MESH) {
2116                 bb = mesh_get_bb(ob);
2117         }
2118         else if ELEM3(ob->type, OB_CURVE, OB_SURF, OB_FONT) {
2119                 bb= ( (Curve *)ob->data )->bb;
2120         }
2121         else if(ob->type==OB_MBALL) {
2122                 bb= ob->bb;
2123         }
2124         return bb;
2125 }
2126
2127 /* used to temporally disable/enable boundbox */
2128 void object_boundbox_flag(Object *ob, int flag, int set)
2129 {
2130         BoundBox *bb= object_get_boundbox(ob);
2131         if(bb) {
2132                 if(set) bb->flag |= flag;
2133                 else bb->flag &= ~flag;
2134         }
2135 }
2136
2137 void minmax_object(Object *ob, float *min, float *max)
2138 {
2139         BoundBox bb;
2140         Mesh *me;
2141         Curve *cu;
2142         float vec[3];
2143         int a;
2144         
2145         switch(ob->type) {
2146                 
2147         case OB_CURVE:
2148         case OB_FONT:
2149         case OB_SURF:
2150                 cu= ob->data;
2151                 
2152                 if(cu->bb==NULL) tex_space_curve(cu);
2153                 bb= *(cu->bb);
2154                 
2155                 for(a=0; a<8; a++) {
2156                         Mat4MulVecfl(ob->obmat, bb.vec[a]);
2157                         DO_MINMAX(bb.vec[a], min, max);
2158                 }
2159                 break;
2160         case OB_ARMATURE:
2161                 if(ob->pose) {
2162                         bPoseChannel *pchan;
2163                         for(pchan= ob->pose->chanbase.first; pchan; pchan= pchan->next) {
2164                                 VECCOPY(vec, pchan->pose_head);
2165                                 Mat4MulVecfl(ob->obmat, vec);
2166                                 DO_MINMAX(vec, min, max);
2167                                 VECCOPY(vec, pchan->pose_tail);
2168                                 Mat4MulVecfl(ob->obmat, vec);
2169                                 DO_MINMAX(vec, min, max);
2170                         }
2171                         break;
2172                 }
2173                 /* no break, get_mesh will give NULL and it passes on to default */
2174         case OB_MESH:
2175                 me= get_mesh(ob);
2176                 
2177                 if(me) {
2178                         bb = *mesh_get_bb(ob);
2179                         
2180                         for(a=0; a<8; a++) {
2181                                 Mat4MulVecfl(ob->obmat, bb.vec[a]);
2182                                 DO_MINMAX(bb.vec[a], min, max);
2183                         }
2184                 }
2185                 if(min[0] < max[0] ) break;
2186                 
2187                 /* else here no break!!!, mesh can be zero sized */
2188                 
2189         default:
2190                 DO_MINMAX(ob->obmat[3], min, max);
2191
2192                 VECCOPY(vec, ob->obmat[3]);
2193                 VecAddf(vec, vec, ob->size);
2194                 DO_MINMAX(vec, min, max);
2195
2196                 VECCOPY(vec, ob->obmat[3]);
2197                 VecSubf(vec, vec, ob->size);
2198                 DO_MINMAX(vec, min, max);
2199                 break;
2200         }
2201 }
2202
2203 /* TODO - use dupli objects bounding boxes */
2204 void minmax_object_duplis(Object *ob, float *min, float *max)
2205 {
2206         if ((ob->transflag & OB_DUPLI)==0) {
2207                 return;
2208         } else {
2209                 ListBase *lb;
2210                 DupliObject *dob;
2211                 
2212                 lb= object_duplilist(G.scene, ob);
2213                 for(dob= lb->first; dob; dob= dob->next) {
2214                         if(dob->no_draw);
2215                         else {
2216                                 /* should really use bound box of dup object */
2217                                 DO_MINMAX(dob->mat[3], min, max);
2218                         }
2219                 }
2220                 free_object_duplilist(lb);      /* does restore */
2221         }
2222 }
2223
2224
2225 /* proxy rule: lib_object->proxy_from == the one we borrow from, only set temporal and cleared here */
2226 /*           local_object->proxy      == pointer to library object, saved in files and read */
2227
2228 /* function below is polluted with proxy exceptions, cleanup will follow! */
2229
2230 /* the main object update call, for object matrix, constraints, keys and displist (modifiers) */
2231 /* requires flags to be set! */
2232 void object_handle_update(Object *ob)
2233 {
2234         if(ob->recalc & OB_RECALC) {
2235                 
2236                 if(ob->recalc & OB_RECALC_OB) {
2237
2238                         // printf("recalcob %s\n", ob->id.name+2);
2239                         
2240                         /* handle proxy copy for target */
2241                         if(ob->id.lib && ob->proxy_from) {
2242                                 // printf("ob proxy copy, lib ob %s proxy %s\n", ob->id.name, ob->proxy_from->id.name);
2243                                 if(ob->proxy_from->proxy_group) {/* transform proxy into group space */
2244                                         Object *obg= ob->proxy_from->proxy_group;
2245                                         Mat4Invert(obg->imat, obg->obmat);
2246                                         Mat4MulMat4(ob->obmat, ob->proxy_from->obmat, obg->imat);
2247                                 }
2248                                 else
2249                                         Mat4CpyMat4(ob->obmat, ob->proxy_from->obmat);
2250                         }
2251                         else
2252                                 where_is_object(ob);
2253                         if (G.f & G_DOSCRIPTLINKS) BPY_do_pyscript((ID *)ob, SCRIPT_OBJECTUPDATE);
2254                 }
2255                 
2256                 if(ob->recalc & OB_RECALC_DATA) {
2257                         
2258                         // printf("recalcdata %s\n", ob->id.name+2);
2259                         
2260                         /* includes all keys and modifiers */
2261                         if(ob->type==OB_MESH) {
2262                                 makeDerivedMesh(ob, get_viewedit_datamask());
2263                         }
2264                         else if(ob->type==OB_MBALL) {
2265                                 makeDispListMBall(ob);
2266                         } 
2267                         else if(ELEM3(ob->type, OB_CURVE, OB_SURF, OB_FONT)) {
2268                                 makeDispListCurveTypes(ob, 0);
2269                         }
2270                         else if(ob->type==OB_LATTICE) {
2271                                 lattice_calc_modifiers(ob);
2272                         }
2273                         else if(ob->type==OB_CAMERA) {
2274                                 Camera *cam = (Camera *)ob->data;
2275                                 calc_ipo(cam->ipo, frame_to_float(G.scene->r.cfra));
2276                                 execute_ipo(&cam->id, cam->ipo);
2277                         }
2278                         else if(ob->type==OB_LAMP) {
2279                                 Lamp *la = (Lamp *)ob->data;
2280                                 calc_ipo(la->ipo, frame_to_float(G.scene->r.cfra));
2281                                 execute_ipo(&la->id, la->ipo);
2282                         }
2283                         else if(ob->type==OB_ARMATURE) {
2284                                 /* this happens for reading old files and to match library armatures with poses */
2285                                 if(ob->pose==NULL || (ob->pose->flag & POSE_RECALC))
2286                                         armature_rebuild_pose(ob, ob->data);
2287                                 
2288                                 if(ob->id.lib && ob->proxy_from) {
2289                                         copy_pose_result(ob->pose, ob->proxy_from->pose);
2290                                         // printf("pose proxy copy, lib ob %s proxy %s\n", ob->id.name, ob->proxy_from->id.name);
2291                                 }
2292                                 else {
2293                                         do_all_pose_actions(ob);
2294                                         where_is_pose(ob);
2295                                 }
2296                         }
2297
2298                         if(ob->particlesystem.first) {
2299                                 ParticleSystem *tpsys, *psys;
2300                                 DerivedMesh *dm;
2301                                 
2302                                 psys= ob->particlesystem.first;
2303                                 while(psys) {
2304                                         if(psys_check_enabled(ob, psys)) {
2305                                                 particle_system_update(ob, psys);
2306                                                 psys= psys->next;
2307                                         }
2308                                         else if(psys->flag & PSYS_DELETE) {
2309                                                 tpsys=psys->next;
2310                                                 BLI_remlink(&ob->particlesystem, psys);
2311                                                 psys_free(ob,psys);
2312                                                 psys= tpsys;
2313                                         }
2314                                         else
2315                                                 psys= psys->next;
2316                                 }
2317
2318                                 if(G.rendering && ob->transflag & OB_DUPLIPARTS) {
2319                                         /* this is to make sure we get render level duplis in groups:
2320                                          * the derivedmesh must be created before init_render_mesh,
2321                                          * since object_duplilist does dupliparticles before that */
2322                                         dm = mesh_create_derived_render(ob, CD_MASK_BAREMESH|CD_MASK_MTFACE|CD_MASK_MCOL);
2323                                         dm->release(dm);
2324
2325                                         for(psys=ob->particlesystem.first; psys; psys=psys->next)
2326                                                 psys_get_modifier(ob, psys)->flag &= ~eParticleSystemFlag_psys_updated;
2327                                 }
2328                         }
2329                         if (G.f & G_DOSCRIPTLINKS) BPY_do_pyscript((ID *)ob, SCRIPT_OBDATAUPDATE);
2330                 }
2331
2332                 /* the no-group proxy case, we call update */
2333                 if(ob->proxy && ob->proxy_group==NULL) {
2334                         /* set pointer in library proxy target, for copying, but restore it */
2335                         ob->proxy->proxy_from= ob;
2336                         // printf("call update, lib ob %s proxy %s\n", ob->proxy->id.name, ob->id.name);
2337                         object_handle_update(ob->proxy);
2338                 }
2339         
2340                 ob->recalc &= ~OB_RECALC;
2341         }
2342
2343         /* the case when this is a group proxy, object_update is called in group.c */
2344         if(ob->proxy) {
2345                 ob->proxy->proxy_from= ob;
2346                 // printf("set proxy pointer for later group stuff %s\n", ob->id.name);
2347         }
2348 }
2349
2350 float give_timeoffset(Object *ob) {
2351         if ((ob->ipoflag & OB_OFFS_PARENTADD) && ob->parent) {
2352                 return ob->sf + give_timeoffset(ob->parent);
2353         } else {
2354                 return ob->sf;
2355         }
2356 }
2357
2358 int give_obdata_texspace(Object *ob, int **texflag, float **loc, float **size, float **rot) {
2359         
2360         if (ob->data==NULL)
2361                 return 0;
2362         
2363         switch (GS(((ID *)ob->data)->name)) {
2364         case ID_ME:
2365         {
2366                 Mesh *me= ob->data;
2367                 if (texflag)    *texflag = &me->texflag;
2368                 if (loc)                *loc = me->loc;
2369                 if (size)               *size = me->size;
2370                 if (rot)                *rot = me->rot;
2371                 break;
2372         }
2373         case ID_CU:
2374         {
2375                 Curve *cu= ob->data;
2376                 if (texflag)    *texflag = &cu->texflag;
2377                 if (loc)                *loc = cu->loc;
2378                 if (size)               *size = cu->size;
2379                 if (rot)                *rot = cu->rot;
2380                 break;
2381         }
2382         case ID_MB:
2383         {
2384                 MetaBall *mb= ob->data;
2385                 if (texflag)    *texflag = &mb->texflag;
2386                 if (loc)                *loc = mb->loc;
2387                 if (size)               *size = mb->size;
2388                 if (rot)                *rot = mb->rot;
2389                 break;
2390         }
2391         default:
2392                 return 0;
2393         }
2394         return 1;
2395 }
2396
2397 /*
2398  * Test a bounding box for ray intersection
2399  * assumes the ray is already local to the boundbox space
2400  */
2401 int ray_hit_boundbox(struct BoundBox *bb, float ray_start[3], float ray_normal[3])
2402 {
2403         static int triangle_indexes[12][3] = {{0, 1, 2}, {0, 2, 3},
2404                                                                                   {3, 2, 6}, {3, 6, 7},
2405                                                                                   {1, 2, 6}, {1, 6, 5}, 
2406                                                                                   {5, 6, 7}, {4, 5, 7},
2407                                                                                   {0, 3, 7}, {0, 4, 7},
2408                                                                                   {0, 1, 5}, {0, 4, 5}};
2409         int result = 0;
2410         int i;
2411         
2412         for (i = 0; i < 12 && result == 0; i++)
2413         {
2414                 float lambda;
2415                 int v1, v2, v3;
2416                 v1 = triangle_indexes[i][0];
2417                 v2 = triangle_indexes[i][1];
2418                 v3 = triangle_indexes[i][2];
2419                 result = RayIntersectsTriangle(ray_start, ray_normal, bb->vec[v1], bb->vec[v2], bb->vec[v3], &lambda, NULL);
2420         }
2421         
2422         return result;
2423 }