Patch #18462: Fisheye (Dome) and Spherical Panoramic mode in BGE.
[blender-staging.git] / source / blender / blenkernel / intern / scene.c
1 /*  scene.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 <stdio.h>
33 #include <string.h>
34
35 #ifdef HAVE_CONFIG_H
36 #include <config.h>
37 #endif
38
39 #ifndef WIN32 
40 #include <unistd.h>
41 #else
42 #include <io.h>
43 #endif
44 #include "MEM_guardedalloc.h"
45
46 #include "DNA_armature_types.h" 
47 #include "DNA_color_types.h"
48 #include "DNA_constraint_types.h"
49 #include "DNA_curve_types.h"
50 #include "DNA_group_types.h"
51 #include "DNA_lamp_types.h"
52 #include "DNA_material_types.h"
53 #include "DNA_meta_types.h"
54 #include "DNA_object_types.h"
55 #include "DNA_scene_types.h"
56 #include "DNA_scriptlink_types.h"
57 #include "DNA_texture_types.h"
58 #include "DNA_userdef_types.h"
59
60 #include "BKE_action.h"                 
61 #include "BKE_anim.h"
62 #include "BKE_armature.h"               
63 #include "BKE_bad_level_calls.h"
64 #include "BKE_colortools.h"
65 #include "BKE_constraint.h"
66 #include "BKE_depsgraph.h"
67 #include "BKE_global.h"
68 #include "BKE_group.h"
69 #include "BKE_ipo.h"
70 #include "BKE_idprop.h"
71 #include "BKE_image.h"
72 #include "BKE_key.h"
73 #include "BKE_library.h"
74 #include "BKE_main.h"
75 #include "BKE_node.h"
76 #include "BKE_object.h"
77 #include "BKE_scene.h"
78 #include "BKE_sculpt.h"
79 #include "BKE_world.h"
80 #include "BKE_utildefines.h"
81
82 #include "BIF_previewrender.h"
83 #include "BIF_editseq.h"
84
85 #ifndef DISABLE_PYTHON
86 #include "BPY_extern.h"
87 #endif
88
89 #include "BLI_arithb.h"
90 #include "BLI_blenlib.h"
91
92 #include "nla.h"
93
94 #ifdef WIN32
95 #else
96 #include <sys/time.h>
97 #endif
98
99 void free_avicodecdata(AviCodecData *acd)
100 {
101         if (acd) {
102                 if (acd->lpFormat){
103                         MEM_freeN(acd->lpFormat);
104                         acd->lpFormat = NULL;
105                         acd->cbFormat = 0;
106                 }
107                 if (acd->lpParms){
108                         MEM_freeN(acd->lpParms);
109                         acd->lpParms = NULL;
110                         acd->cbParms = 0;
111                 }
112         }
113 }
114
115 void free_qtcodecdata(QuicktimeCodecData *qcd)
116 {
117         if (qcd) {
118                 if (qcd->cdParms){
119                         MEM_freeN(qcd->cdParms);
120                         qcd->cdParms = NULL;
121                         qcd->cdSize = 0;
122                 }
123         }
124 }
125
126 /* copy_scene moved to src/header_info.c... should be back */
127
128 /* do not free scene itself */
129 void free_scene(Scene *sce)
130 {
131         Base *base;
132
133         base= sce->base.first;
134         while(base) {
135                 base->object->id.us--;
136                 base= base->next;
137         }
138         /* do not free objects! */
139
140         BLI_freelistN(&sce->base);
141         free_editing(sce->ed);
142         if(sce->radio) MEM_freeN(sce->radio);
143         sce->radio= 0;
144         
145 #ifndef DISABLE_PYTHON
146         BPY_free_scriptlink(&sce->scriptlink);
147 #endif
148         
149         if (sce->r.avicodecdata) {
150                 free_avicodecdata(sce->r.avicodecdata);
151                 MEM_freeN(sce->r.avicodecdata);
152                 sce->r.avicodecdata = NULL;
153         }
154         if (sce->r.qtcodecdata) {
155                 free_qtcodecdata(sce->r.qtcodecdata);
156                 MEM_freeN(sce->r.qtcodecdata);
157                 sce->r.qtcodecdata = NULL;
158         }
159         if (sce->r.ffcodecdata.properties) {
160                 IDP_FreeProperty(sce->r.ffcodecdata.properties);
161                 MEM_freeN(sce->r.ffcodecdata.properties);
162                 sce->r.ffcodecdata.properties = NULL;
163         }
164         
165         BLI_freelistN(&sce->markers);
166         BLI_freelistN(&sce->transform_spaces);
167         BLI_freelistN(&sce->r.layers);
168         
169         if(sce->toolsettings){
170                 MEM_freeN(sce->toolsettings);
171                 sce->toolsettings = NULL;       
172         }
173         
174         if (sce->theDag) {
175                 free_forest(sce->theDag);
176                 MEM_freeN(sce->theDag);
177         }
178         
179         if(sce->nodetree) {
180                 ntreeFreeTree(sce->nodetree);
181                 MEM_freeN(sce->nodetree);
182         }
183
184         sculptdata_free(sce);
185 }
186
187 Scene *add_scene(char *name)
188 {
189         Scene *sce;
190         ParticleEditSettings *pset;
191         int a;
192
193         sce= alloc_libblock(&G.main->scene, ID_SCE, name);
194         sce->lay= 1;
195         sce->selectmode= SCE_SELECT_VERTEX;
196         sce->editbutsize= 0.1;
197         sce->autokey_mode= U.autokey_mode;
198         
199         sce->r.mode= R_GAMMA;
200         sce->r.cfra= 1;
201         sce->r.sfra= 1;
202         sce->r.efra= 250;
203         sce->r.xsch= 320;
204         sce->r.ysch= 256;
205         sce->r.xasp= 1;
206         sce->r.yasp= 1;
207         sce->r.xparts= 4;
208         sce->r.yparts= 4;
209         sce->r.size= 100;
210         sce->r.planes= 24;
211         sce->r.quality= 90;
212         sce->r.framapto= 100;
213         sce->r.images= 100;
214         sce->r.framelen= 1.0;
215         sce->r.frs_sec= 25;
216         sce->r.frs_sec_base= 1;
217         sce->r.ocres = 128;
218         
219         sce->r.bake_mode= 1;    /* prevent to include render stuff here */
220         sce->r.bake_filter= 2;
221         sce->r.bake_osa= 5;
222         sce->r.bake_flag= R_BAKE_CLEAR;
223         sce->r.bake_normal_space= R_BAKE_SPACE_TANGENT;
224         
225         sce->r.xplay= 640;
226         sce->r.yplay= 480;
227         sce->r.freqplay= 60;
228         sce->r.depth= 32;
229         
230         sce->r.threads= 1;
231         
232         sce->r.stereomode = 1;  // no stereo
233         sce->r.domeangle = 180;
234         sce->r.domemode = 1;
235         sce->r.domesize = 1.0f;
236         sce->r.domeres = 4;
237         sce->r.domeresbuf = 1.0f;
238
239         sce->r.simplify_subsurf= 6;
240         sce->r.simplify_particles= 1.0f;
241         sce->r.simplify_shadowsamples= 16;
242         sce->r.simplify_aosss= 1.0f;
243
244         sce->r.cineonblack= 95;
245         sce->r.cineonwhite= 685;
246         sce->r.cineongamma= 1.7f;
247         
248         sce->toolsettings = MEM_callocN(sizeof(struct ToolSettings),"Tool Settings Struct");
249         sce->toolsettings->cornertype=1;
250         sce->toolsettings->degr = 90; 
251         sce->toolsettings->step = 9;
252         sce->toolsettings->turn = 1;                            
253         sce->toolsettings->extr_offs = 1; 
254         sce->toolsettings->doublimit = 0.001;
255         sce->toolsettings->segments = 32;
256         sce->toolsettings->rings = 32;
257         sce->toolsettings->vertices = 32;
258         sce->toolsettings->editbutflag = 1;
259         sce->toolsettings->uvcalc_radius = 1.0f;
260         sce->toolsettings->uvcalc_cubesize = 1.0f;
261         sce->toolsettings->uvcalc_mapdir = 1;
262         sce->toolsettings->uvcalc_mapalign = 1;
263         sce->toolsettings->unwrapper = 1;
264         sce->toolsettings->select_thresh= 0.01f;
265         sce->toolsettings->jointrilimit = 0.8f;
266
267         sce->toolsettings->skgen_resolution = 100;
268         sce->toolsettings->skgen_threshold_internal     = 0.01f;
269         sce->toolsettings->skgen_threshold_external     = 0.01f;
270         sce->toolsettings->skgen_angle_limit                    = 45.0f;
271         sce->toolsettings->skgen_length_ratio                   = 1.3f;
272         sce->toolsettings->skgen_length_limit                   = 1.5f;
273         sce->toolsettings->skgen_correlation_limit              = 0.98f;
274         sce->toolsettings->skgen_symmetry_limit                 = 0.1f;
275         sce->toolsettings->skgen_postpro = SKGEN_SMOOTH;
276         sce->toolsettings->skgen_postpro_passes = 1;
277         sce->toolsettings->skgen_options = SKGEN_FILTER_INTERNAL|SKGEN_FILTER_EXTERNAL|SKGEN_FILTER_SMART|SKGEN_HARMONIC|SKGEN_SUB_CORRELATION|SKGEN_STICK_TO_EMBEDDING;
278         sce->toolsettings->skgen_subdivisions[0] = SKGEN_SUB_CORRELATION;
279         sce->toolsettings->skgen_subdivisions[1] = SKGEN_SUB_LENGTH;
280         sce->toolsettings->skgen_subdivisions[2] = SKGEN_SUB_ANGLE;
281
282         pset= &sce->toolsettings->particle;
283         pset->flag= PE_KEEP_LENGTHS|PE_LOCK_FIRST|PE_DEFLECT_EMITTER;
284         pset->emitterdist= 0.25f;
285         pset->totrekey= 5;
286         pset->totaddkey= 5;
287         pset->brushtype= PE_BRUSH_NONE;
288         for(a=0; a<PE_TOT_BRUSH; a++) {
289                 pset->brush[a].strength= 50;
290                 pset->brush[a].size= 50;
291                 pset->brush[a].step= 10;
292         }
293         pset->brush[PE_BRUSH_CUT].strength= 100;
294         
295         sce->jumpframe = 10;
296         sce->audio.mixrate = 44100;
297
298         strcpy(sce->r.backbuf, "//backbuf");
299         strcpy(sce->r.pic, U.renderdir);
300
301         BLI_init_rctf(&sce->r.safety, 0.1f, 0.9f, 0.1f, 0.9f);
302         sce->r.osa= 8;
303
304         sculptdata_init(sce);
305
306         /* note; in header_info.c the scene copy happens..., if you add more to renderdata it has to be checked there */
307         scene_add_render_layer(sce);
308         
309         return sce;
310 }
311
312 Base *object_in_scene(Object *ob, Scene *sce)
313 {
314         Base *base;
315         
316         base= sce->base.first;
317         while(base) {
318                 if(base->object == ob) return base;
319                 base= base->next;
320         }
321         return NULL;
322 }
323
324 void set_scene_bg(Scene *sce)
325 {
326         Base *base;
327         Object *ob;
328         Group *group;
329         GroupObject *go;
330         int flag;
331         
332         // Note: this here is defined in editseq.c (BIF_editseq.h), NOT in blenkernel! 
333         clear_last_seq();
334         
335         G.scene= sce;
336         
337         /* check for cyclic sets, for reading old files but also for definite security (py?) */
338         scene_check_setscene(G.scene);
339         
340         /* deselect objects (for dataselect) */
341         for(ob= G.main->object.first; ob; ob= ob->id.next)
342                 ob->flag &= ~(SELECT|OB_FROMGROUP);
343
344         /* group flags again */
345         for(group= G.main->group.first; group; group= group->id.next) {
346                 go= group->gobject.first;
347                 while(go) {
348                         if(go->ob) go->ob->flag |= OB_FROMGROUP;
349                         go= go->next;
350                 }
351         }
352
353         /* sort baselist */
354         DAG_scene_sort(sce);
355         
356         /* ensure dags are built for sets */
357         for(sce= sce->set; sce; sce= sce->set)
358                 if(sce->theDag==NULL)
359                         DAG_scene_sort(sce);
360
361         /* copy layers and flags from bases to objects */
362         for(base= G.scene->base.first; base; base= base->next) {
363                 ob= base->object;
364                 ob->lay= base->lay;
365                 
366                 /* group patch... */
367                 base->flag &= ~(OB_FROMGROUP);
368                 flag= ob->flag & (OB_FROMGROUP);
369                 base->flag |= flag;
370                 
371                 /* not too nice... for recovering objects with lost data */
372                 if(ob->pose==NULL) base->flag &= ~OB_POSEMODE;
373                 ob->flag= base->flag;
374                 
375                 ob->ctime= -1234567.0;  /* force ipo to be calculated later */
376         }
377         /* no full animation update, this to enable render code to work (render code calls own animation updates) */
378         
379         /* do we need FRAMECHANGED in set_scene? */
380 //      if (G.f & G_DOSCRIPTLINKS) BPY_do_all_scripts(SCRIPT_FRAMECHANGED, 0);
381 }
382
383 /* called from creator.c */
384 void set_scene_name(char *name)
385 {
386         Scene *sce;
387
388         for (sce= G.main->scene.first; sce; sce= sce->id.next) {
389                 if (BLI_streq(name, sce->id.name+2)) {
390                         set_scene_bg(sce);
391                         return;
392                 }
393         }
394         
395         error("Can't find scene: %s", name);
396 }
397
398 /* used by metaballs
399  * doesnt return the original duplicated object, only dupli's
400  */
401 int next_object(int val, Base **base, Object **ob)
402 {
403         static ListBase *duplilist= NULL;
404         static DupliObject *dupob;
405         static int fase;
406         int run_again=1;
407         
408         /* init */
409         if(val==0) {
410                 fase= F_START;
411                 dupob= NULL;
412         }
413         else {
414
415                 /* run_again is set when a duplilist has been ended */
416                 while(run_again) {
417                         run_again= 0;
418
419                         /* the first base */
420                         if(fase==F_START) {
421                                 *base= G.scene->base.first;
422                                 if(*base) {
423                                         *ob= (*base)->object;
424                                         fase= F_SCENE;
425                                 }
426                                 else {
427                                     /* exception: empty scene */
428                                         if(G.scene->set && G.scene->set->base.first) {
429                                                 *base= G.scene->set->base.first;
430                                                 *ob= (*base)->object;
431                                                 fase= F_SET;
432                                         }
433                                 }
434                         }
435                         else {
436                                 if(*base && fase!=F_DUPLI) {
437                                         *base= (*base)->next;
438                                         if(*base) *ob= (*base)->object;
439                                         else {
440                                                 if(fase==F_SCENE) {
441                                                         /* scene is finished, now do the set */
442                                                         if(G.scene->set && G.scene->set->base.first) {
443                                                                 *base= G.scene->set->base.first;
444                                                                 *ob= (*base)->object;
445                                                                 fase= F_SET;
446                                                         }
447                                                 }
448                                         }
449                                 }
450                         }
451                         
452                         if(*base == NULL) fase= F_START;
453                         else {
454                                 if(fase!=F_DUPLI) {
455                                         if( (*base)->object->transflag & OB_DUPLI) {
456                                                 /* groups cannot be duplicated for mballs yet, 
457                                                 this enters eternal loop because of 
458                                                 makeDispListMBall getting called inside of group_duplilist */
459                                                 if((*base)->object->dup_group == NULL) {
460                                                         duplilist= object_duplilist(G.scene, (*base)->object);
461                                                         
462                                                         dupob= duplilist->first;
463
464                                                         if(!dupob)
465                                                                 free_object_duplilist(duplilist);
466                                                 }
467                                         }
468                                 }
469                                 /* handle dupli's */
470                                 if(dupob) {
471                                         
472                                         Mat4CpyMat4(dupob->ob->obmat, dupob->mat);
473                                         
474                                         (*base)->flag |= OB_FROMDUPLI;
475                                         *ob= dupob->ob;
476                                         fase= F_DUPLI;
477                                         
478                                         dupob= dupob->next;
479                                 }
480                                 else if(fase==F_DUPLI) {
481                                         fase= F_SCENE;
482                                         (*base)->flag &= ~OB_FROMDUPLI;
483                                         
484                                         for(dupob= duplilist->first; dupob; dupob= dupob->next) {
485                                                 Mat4CpyMat4(dupob->ob->obmat, dupob->omat);
486                                         }
487                                         
488                                         free_object_duplilist(duplilist);
489                                         duplilist= NULL;
490                                         run_again= 1;
491                                 }
492                         }
493                 }
494         }
495         
496         return fase;
497 }
498
499 Object *scene_find_camera(Scene *sc)
500 {
501         Base *base;
502         
503         for (base= sc->base.first; base; base= base->next)
504                 if (base->object->type==OB_CAMERA)
505                         return base->object;
506
507         return NULL;
508 }
509
510
511 Base *scene_add_base(Scene *sce, Object *ob)
512 {
513         Base *b= MEM_callocN(sizeof(*b), "scene_add_base");
514         BLI_addhead(&sce->base, b);
515
516         b->object= ob;
517         b->flag= ob->flag;
518         b->lay= ob->lay;
519
520         return b;
521 }
522
523 void scene_deselect_all(Scene *sce)
524 {
525         Base *b;
526
527         for (b= sce->base.first; b; b= b->next) {
528                 b->flag&= ~SELECT;
529                 b->object->flag= b->flag;
530         }
531 }
532
533 void scene_select_base(Scene *sce, Base *selbase)
534 {
535         scene_deselect_all(sce);
536
537         selbase->flag |= SELECT;
538         selbase->object->flag= selbase->flag;
539
540         sce->basact= selbase;
541 }
542
543 /* checks for cycle, returns 1 if it's all OK */
544 int scene_check_setscene(Scene *sce)
545 {
546         Scene *scene;
547         int a, totscene;
548         
549         if(sce->set==NULL) return 1;
550         
551         totscene= 0;
552         for(scene= G.main->scene.first; scene; scene= scene->id.next)
553                 totscene++;
554         
555         for(a=0, scene=sce; scene->set; scene=scene->set, a++) {
556                 /* more iterations than scenes means we have a cycle */
557                 if(a > totscene) {
558                         /* the tested scene gets zero'ed, that's typically current scene */
559                         sce->set= NULL;
560                         return 0;
561                 }
562         }
563
564         return 1;
565 }
566
567 static void scene_update(Scene *sce, unsigned int lay)
568 {
569         Base *base;
570         Object *ob;
571         
572         if(sce->theDag==NULL)
573                 DAG_scene_sort(sce);
574         
575         DAG_scene_update_flags(sce, lay);   // only stuff that moves or needs display still
576         
577         for(base= sce->base.first; base; base= base->next) {
578                 ob= base->object;
579                 
580                 object_handle_update(ob);   // bke_object.h
581                 
582                 /* only update layer when an ipo */
583                 if(ob->ipo && has_ipo_code(ob->ipo, OB_LAY) ) {
584                         base->lay= ob->lay;
585                 }
586         }
587 }
588
589 /* applies changes right away, does all sets too */
590 void scene_update_for_newframe(Scene *sce, unsigned int lay)
591 {
592         Scene *scene= sce;
593         
594         /* clears all BONE_UNKEYED flags for every pose's pchans */
595         framechange_poses_clear_unkeyed();
596         
597         /* object ipos are calculated in where_is_object */
598         do_all_data_ipos();
599 #ifndef DISABLE_PYTHON
600         if (G.f & G_DOSCRIPTLINKS) BPY_do_all_scripts(SCRIPT_FRAMECHANGED, 0);
601 #endif
602         /* sets first, we allow per definition current scene to have dependencies on sets */
603         for(sce= sce->set; sce; sce= sce->set)
604                 scene_update(sce, lay);
605
606         scene_update(scene, lay);
607 }
608
609 /* return default layer, also used to patch old files */
610 void scene_add_render_layer(Scene *sce)
611 {
612         SceneRenderLayer *srl;
613         int tot= 1 + BLI_countlist(&sce->r.layers);
614         
615         srl= MEM_callocN(sizeof(SceneRenderLayer), "new render layer");
616         sprintf(srl->name, "%d RenderLayer", tot);
617         BLI_addtail(&sce->r.layers, srl);
618
619         /* note, this is also in render, pipeline.c, to make layer when scenedata doesnt have it */
620         srl->lay= (1<<20) -1;
621         srl->layflag= 0x7FFF;   /* solid ztra halo edge strand */
622         srl->passflag= SCE_PASS_COMBINED|SCE_PASS_Z;
623 }
624
625 /* Initialize 'permanent' sculpt data that is saved with file kept after
626    switching out of sculptmode. */
627 void sculptdata_init(Scene *sce)
628 {
629         SculptData *sd;
630
631         if(!sce)
632                 return;
633
634         sd= &sce->sculptdata;
635
636         if(sd->cumap) {
637                 curvemapping_free(sd->cumap);
638                 sd->cumap = NULL;
639         }
640
641         memset(sd, 0, sizeof(SculptData));
642
643         sd->drawbrush.size = sd->smoothbrush.size = sd->pinchbrush.size =
644                 sd->inflatebrush.size = sd->grabbrush.size =
645                 sd->layerbrush.size = sd->flattenbrush.size = 50;
646         sd->drawbrush.strength = sd->smoothbrush.strength =
647                 sd->pinchbrush.strength = sd->inflatebrush.strength =
648                 sd->grabbrush.strength = sd->layerbrush.strength =
649                 sd->flattenbrush.strength = 25;
650         sd->drawbrush.dir = sd->pinchbrush.dir = sd->inflatebrush.dir = sd->layerbrush.dir= 1;
651         sd->drawbrush.flag = sd->smoothbrush.flag =
652                 sd->pinchbrush.flag = sd->inflatebrush.flag =
653                 sd->layerbrush.flag = sd->flattenbrush.flag = 0;
654         sd->drawbrush.view= 0;
655         sd->brush_type= DRAW_BRUSH;
656         sd->texact= -1;
657         sd->texfade= 1;
658         sd->averaging= 1;
659         sd->texsep= 0;
660         sd->texrept= SCULPTREPT_DRAG;
661         sd->flags= SCULPT_DRAW_BRUSH;
662         sd->tablet_size=3;
663         sd->tablet_strength=10;
664         sd->rake=0;
665         sculpt_reset_curve(sd);
666 }
667
668 void sculptdata_free(Scene *sce)
669 {
670         SculptData *sd= &sce->sculptdata;
671         int a;
672
673         sculptsession_free(sce);
674
675         for(a=0; a<MAX_MTEX; a++) {
676                 MTex *mtex= sd->mtex[a];
677                 if(mtex) {
678                         if(mtex->tex) mtex->tex->id.us--;
679                         MEM_freeN(mtex);
680                 }
681         }
682
683         curvemapping_free(sd->cumap);
684         sd->cumap = NULL;
685 }
686
687 void sculpt_vertexusers_free(SculptSession *ss)
688 {
689         if(ss && ss->vertex_users){
690                 MEM_freeN(ss->vertex_users);
691                 MEM_freeN(ss->vertex_users_mem);
692                 ss->vertex_users= NULL;
693                 ss->vertex_users_mem= NULL;
694                 ss->vertex_users_size= 0;
695         }
696 }
697
698 void sculptsession_free(Scene *sce)
699 {
700         SculptSession *ss= sce->sculptdata.session;
701         if(ss) {
702                 if(ss->projverts)
703                         MEM_freeN(ss->projverts);
704                 if(ss->mats)
705                         MEM_freeN(ss->mats);
706
707                 if(ss->radialcontrol)
708                         MEM_freeN(ss->radialcontrol);
709
710                 sculpt_vertexusers_free(ss);
711                 if(ss->texcache)
712                         MEM_freeN(ss->texcache);
713                 MEM_freeN(ss);
714                 sce->sculptdata.session= NULL;
715         }
716 }
717
718 /*  Default curve approximates 0.5 * (cos(pi * x) + 1), with 0 <= x <= 1 */
719 void sculpt_reset_curve(SculptData *sd)
720 {
721         CurveMap *cm = NULL;
722
723         if(!sd->cumap)
724                 sd->cumap = curvemapping_add(1, 0, 0, 1, 1);
725
726         cm = sd->cumap->cm;
727
728         if(cm->curve)
729                 MEM_freeN(cm->curve);
730         cm->curve= MEM_callocN(6*sizeof(CurveMapPoint), "curve points");
731         cm->flag &= ~CUMA_EXTEND_EXTRAPOLATE;
732         cm->totpoint= 6;
733         cm->curve[0].x= 0;
734         cm->curve[0].y= 1;
735         cm->curve[1].x= 0.1;
736         cm->curve[1].y= 0.97553;
737         cm->curve[2].x= 0.3;
738         cm->curve[2].y= 0.79389;
739         cm->curve[3].x= 0.9;
740         cm->curve[3].y= 0.02447;
741         cm->curve[4].x= 0.7;
742         cm->curve[4].y= 0.20611;
743         cm->curve[5].x= 1;
744         cm->curve[5].y= 0;
745
746         curvemapping_changed(sd->cumap, 0);
747 }
748
749 /* render simplification */
750
751 int get_render_subsurf_level(RenderData *r, int lvl)
752 {
753         if(G.rt == 1 && (r->mode & R_SIMPLIFY))
754                 return MIN2(r->simplify_subsurf, lvl);
755         else
756                 return lvl;
757 }
758
759 int get_render_child_particle_number(RenderData *r, int num)
760 {
761         if(G.rt == 1 && (r->mode & R_SIMPLIFY))
762                 return (int)(r->simplify_particles*num);
763         else
764                 return num;
765 }
766
767 int get_render_shadow_samples(RenderData *r, int samples)
768 {
769         if(G.rt == 1 && (r->mode & R_SIMPLIFY) && samples > 0)
770                 return MIN2(r->simplify_shadowsamples, samples);
771         else
772                 return samples;
773 }
774
775 float get_render_aosss_error(RenderData *r, float error)
776 {
777         if(G.rt == 1 && (r->mode & R_SIMPLIFY))
778                 return ((1.0f-r->simplify_aosss)*10.0f + 1.0f)*error;
779         else
780                 return error;
781 }
782
783 void free_dome_warp_text(struct Text *txt)
784 {
785         Scene *scene;
786
787         scene = G.main->scene.first;
788         while(scene) {
789                 if (scene->r.dometext == txt)
790                         scene->r.dometext = NULL;
791                 scene = scene->id.next;
792         }
793 }