source/blender/blenkernel/intern/scene.c

   1 /*
   2  * ***** BEGIN GPL LICENSE BLOCK *****
   3  *
   4  * This program is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU General Public License
   6  * as published by the Free Software Foundation; either version 2
   7  * of the License, or (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software Foundation,
  16  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  17  *
  18  * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
  19  * All rights reserved.
  20  *
  21  * The Original Code is: all of this file.
  22  *
  23  * Contributor(s): none yet.
  24  *
  25  * ***** END GPL LICENSE BLOCK *****
  26  */
  27
  28 /** \file blender/blenkernel/intern/scene.c
  29  *  \ingroup bke
  30  */
  31
  32
  33 #include <stddef.h>
  34 #include <stdio.h>
  35 #include <string.h>
  36
  37 #ifndef WIN32
  38 #include <unistd.h>
  39 #else
  40 #include <io.h>
  41 #endif
  42
  43 #include "MEM_guardedalloc.h"
  44
  45 #include "DNA_anim_types.h"
  46 #include "DNA_group_types.h"
  47 #include "DNA_node_types.h"
  48 #include "DNA_object_types.h"
  49 #include "DNA_scene_types.h"
  50 #include "DNA_screen_types.h"
  51 #include "DNA_sequence_types.h"
  52
  53 #include "BLI_math.h"
  54 #include "BLI_blenlib.h"
  55 #include "BLI_utildefines.h"
  56 #include "BLI_callbacks.h"
  57
  58 #include "BKE_anim.h"
  59 #include "BKE_animsys.h"
  60 #include "BKE_depsgraph.h"
  61 #include "BKE_global.h"
  62 #include "BKE_group.h"
  63 #include "BKE_idprop.h"
  64 #include "BKE_library.h"
  65 #include "BKE_main.h"
  66 #include "BKE_node.h"
  67 #include "BKE_object.h"
  68 #include "BKE_paint.h"
  69 #include "BKE_pointcache.h"
  70 #include "BKE_scene.h"
  71 #include "BKE_sequencer.h"
  72 #include "BKE_world.h"
  73
  74 #include "BKE_sound.h"
  75
  76 #include "RE_engine.h"
  77
  78 //XXX #include "BIF_previewrender.h"
  79 //XXX #include "BIF_editseq.h"
  80
  81 #ifdef WIN32
  82 #else
  83 #include <sys/time.h>
  84 #endif
  85
  86 void free_avicodecdata(AviCodecData *acd)
  87 {
  88         if (acd) {
  89                 if (acd->lpFormat) {
  90                         MEM_freeN(acd->lpFormat);
  91                         acd->lpFormat = NULL;
  92                         acd->cbFormat = 0;
  93                 }
  94                 if (acd->lpParms) {
  95                         MEM_freeN(acd->lpParms);
  96                         acd->lpParms = NULL;
  97                         acd->cbParms = 0;
  98                 }
  99         }
 100 }
 101
 102 void free_qtcodecdata(QuicktimeCodecData *qcd)
 103 {
 104         if (qcd) {
 105                 if (qcd->cdParms) {
 106                         MEM_freeN(qcd->cdParms);
 107                         qcd->cdParms = NULL;
 108                         qcd->cdSize = 0;
 109                 }
 110         }
 111 }
 112
 113 Scene *copy_scene(Scene *sce, int type)
 114 {
 115         Scene *scen;
 116         ToolSettings *ts;
 117         Base *base, *obase;
 118
 119         if (type == SCE_COPY_EMPTY) {
 120                 ListBase lb;
 121                 scen= add_scene(sce->id.name+2);
 122
 123                 lb= scen->r.layers;
 124                 scen->r= sce->r;
 125                 scen->r.layers= lb;
 126         }
 127         else {
 128                 scen= copy_libblock(&sce->id);
 129                 BLI_duplicatelist(&(scen->base), &(sce->base));
 130
 131                 clear_id_newpoins();
 132
 133                 id_us_plus((ID *)scen->world);
 134                 id_us_plus((ID *)scen->set);
 135                 id_us_plus((ID *)scen->gm.dome.warptext);
 136
 137                 scen->ed= NULL;
 138                 scen->theDag= NULL;
 139                 scen->obedit= NULL;
 140                 scen->toolsettings= MEM_dupallocN(sce->toolsettings);
 141                 scen->stats= NULL;
 142                 scen->fps_info= NULL;
 143
 144                 ts= scen->toolsettings;
 145                 if (ts) {
 146                         if (ts->vpaint) {
 147                                 ts->vpaint= MEM_dupallocN(ts->vpaint);
 148                                 ts->vpaint->paintcursor= NULL;
 149                                 ts->vpaint->vpaint_prev= NULL;
 150                                 ts->vpaint->wpaint_prev= NULL;
 151                                 copy_paint(&ts->vpaint->paint, &ts->vpaint->paint);
 152                         }
 153                         if (ts->wpaint) {
 154                                 ts->wpaint= MEM_dupallocN(ts->wpaint);
 155                                 ts->wpaint->paintcursor= NULL;
 156                                 ts->wpaint->vpaint_prev= NULL;
 157                                 ts->wpaint->wpaint_prev= NULL;
 158                                 copy_paint(&ts->wpaint->paint, &ts->wpaint->paint);
 159                         }
 160                         if (ts->sculpt) {
 161                                 ts->sculpt= MEM_dupallocN(ts->sculpt);
 162                                 copy_paint(&ts->sculpt->paint, &ts->sculpt->paint);
 163                         }
 164
 165                         copy_paint(&ts->imapaint.paint, &ts->imapaint.paint);
 166                         ts->imapaint.paintcursor= NULL;
 167
 168                         ts->particle.paintcursor= NULL;
 169                 }
 170
 171                 BLI_duplicatelist(&(scen->markers), &(sce->markers));
 172                 BLI_duplicatelist(&(scen->transform_spaces), &(sce->transform_spaces));
 173                 BLI_duplicatelist(&(scen->r.layers), &(sce->r.layers));
 174                 BKE_keyingsets_copy(&(scen->keyingsets), &(sce->keyingsets));
 175
 176                 if (sce->nodetree) {
 177                         scen->nodetree= ntreeCopyTree(sce->nodetree); /* copies actions */
 178                         ntreeSwitchID(scen->nodetree, &sce->id, &scen->id);
 179                 }
 180
 181                 obase= sce->base.first;
 182                 base= scen->base.first;
 183                 while (base) {
 184                         id_us_plus(&base->object->id);
 185                         if (obase==sce->basact) scen->basact= base;
 186
 187                         obase= obase->next;
 188                         base= base->next;
 189                 }
 190         }
 191
 192         /* make a private copy of the avicodecdata */
 193         if (sce->r.avicodecdata) {
 194                 scen->r.avicodecdata = MEM_dupallocN(sce->r.avicodecdata);
 195                 scen->r.avicodecdata->lpFormat = MEM_dupallocN(scen->r.avicodecdata->lpFormat);
 196                 scen->r.avicodecdata->lpParms = MEM_dupallocN(scen->r.avicodecdata->lpParms);
 197         }
 198
 199         /* make a private copy of the qtcodecdata */
 200         if (sce->r.qtcodecdata) {
 201                 scen->r.qtcodecdata = MEM_dupallocN(sce->r.qtcodecdata);
 202                 scen->r.qtcodecdata->cdParms = MEM_dupallocN(scen->r.qtcodecdata->cdParms);
 203         }
 204
 205         if (sce->r.ffcodecdata.properties) { /* intentionally check scen not sce. */
 206                 scen->r.ffcodecdata.properties= IDP_CopyProperty(sce->r.ffcodecdata.properties);
 207         }
 208
 209         /* NOTE: part of SCE_COPY_LINK_DATA and SCE_COPY_FULL operations
 210          * are done outside of blenkernel with ED_objects_single_users! */
 211
 212         /*  camera */
 213         if (type == SCE_COPY_LINK_DATA || type == SCE_COPY_FULL) {
 214                 ID_NEW(scen->camera);
 215         }
 216
 217         /* before scene copy */
 218         sound_create_scene(scen);
 219
 220         /* world */
 221         if (type == SCE_COPY_FULL) {
 222                 BKE_copy_animdata_id_action((ID *)scen);
 223                 if (scen->world) {
 224                         id_us_plus((ID *)scen->world);
 225                         scen->world= copy_world(scen->world);
 226                         BKE_copy_animdata_id_action((ID *)scen->world);
 227                 }
 228
 229                 if (sce->ed) {
 230                         scen->ed= MEM_callocN( sizeof(Editing), "addseq");
 231                         scen->ed->seqbasep= &scen->ed->seqbase;
 232                         seqbase_dupli_recursive(sce, scen, &scen->ed->seqbase, &sce->ed->seqbase, SEQ_DUPE_ALL);
 233                 }
 234         }
 235
 236         return scen;
 237 }
 238
 239 /* do not free scene itself */
 240 void free_scene(Scene *sce)
 241 {
 242         Base *base;
 243
 244         base= sce->base.first;
 245         while (base) {
 246                 base->object->id.us--;
 247                 base= base->next;
 248         }
 249         /* do not free objects! */
 250
 251         if (sce->gpd) {
 252 #if 0   // removed since this can be invalid memory when freeing everything
 253                 // since the grease pencil data is freed before the scene.
 254                 // since grease pencil data is not (yet?), shared between objects
 255                 // its probably safe not to do this, some save and reload will free this.
 256                 sce->gpd->id.us--;
 257 #endif
 258                 sce->gpd= NULL;
 259         }
 260
 261         BLI_freelistN(&sce->base);
 262         seq_free_editing(sce);
 263
 264         BKE_free_animdata((ID *)sce);
 265         BKE_keyingsets_free(&sce->keyingsets);
 266
 267         if (sce->r.avicodecdata) {
 268                 free_avicodecdata(sce->r.avicodecdata);
 269                 MEM_freeN(sce->r.avicodecdata);
 270                 sce->r.avicodecdata = NULL;
 271         }
 272         if (sce->r.qtcodecdata) {
 273                 free_qtcodecdata(sce->r.qtcodecdata);
 274                 MEM_freeN(sce->r.qtcodecdata);
 275                 sce->r.qtcodecdata = NULL;
 276         }
 277         if (sce->r.ffcodecdata.properties) {
 278                 IDP_FreeProperty(sce->r.ffcodecdata.properties);
 279                 MEM_freeN(sce->r.ffcodecdata.properties);
 280                 sce->r.ffcodecdata.properties = NULL;
 281         }
 282
 283         BLI_freelistN(&sce->markers);
 284         BLI_freelistN(&sce->transform_spaces);
 285         BLI_freelistN(&sce->r.layers);
 286
 287         if (sce->toolsettings) {
 288                 if (sce->toolsettings->vpaint) {
 289                         free_paint(&sce->toolsettings->vpaint->paint);
 290                         MEM_freeN(sce->toolsettings->vpaint);
 291                 }
 292                 if (sce->toolsettings->wpaint) {
 293                         free_paint(&sce->toolsettings->wpaint->paint);
 294                         MEM_freeN(sce->toolsettings->wpaint);
 295                 }
 296                 if (sce->toolsettings->sculpt) {
 297                         free_paint(&sce->toolsettings->sculpt->paint);
 298                         MEM_freeN(sce->toolsettings->sculpt);
 299                 }
 300                 if (sce->toolsettings->uvsculpt) {
 301                         free_paint(&sce->toolsettings->uvsculpt->paint);
 302                         MEM_freeN(sce->toolsettings->uvsculpt);
 303                 }
 304                 free_paint(&sce->toolsettings->imapaint.paint);
 305
 306                 MEM_freeN(sce->toolsettings);
 307                 sce->toolsettings = NULL;
 308         }
 309
 310         if (sce->theDag) {
 311                 free_forest(sce->theDag);
 312                 MEM_freeN(sce->theDag);
 313         }
 314
 315         if (sce->nodetree) {
 316                 ntreeFreeTree(sce->nodetree);
 317                 MEM_freeN(sce->nodetree);
 318         }
 319
 320         if (sce->stats)
 321                 MEM_freeN(sce->stats);
 322         if (sce->fps_info)
 323                 MEM_freeN(sce->fps_info);
 324
 325         sound_destroy_scene(sce);
 326 }
 327
 328 Scene *add_scene(const char *name)
 329 {
 330         Main *bmain= G.main;
 331         Scene *sce;
 332         ParticleEditSettings *pset;
 333         int a;
 334
 335         sce= alloc_libblock(&bmain->scene, ID_SCE, name);
 336         sce->lay= sce->layact= 1;
 337
 338         sce->r.mode= R_GAMMA|R_OSA|R_SHADOW|R_SSS|R_ENVMAP|R_RAYTRACE;
 339         sce->r.cfra= 1;
 340         sce->r.sfra= 1;
 341         sce->r.efra= 250;
 342         sce->r.frame_step= 1;
 343         sce->r.xsch= 1920;
 344         sce->r.ysch= 1080;
 345         sce->r.xasp= 1;
 346         sce->r.yasp= 1;
 347         sce->r.xparts= 8;
 348         sce->r.yparts= 8;
 349         sce->r.mblur_samples= 1;
 350         sce->r.filtertype= R_FILTER_MITCH;
 351         sce->r.size= 50;
 352
 353         sce->r.im_format.planes= R_IMF_PLANES_RGB;
 354         sce->r.im_format.imtype= R_IMF_IMTYPE_PNG;
 355         sce->r.im_format.quality= 90;
 356
 357         sce->r.displaymode= R_OUTPUT_AREA;
 358         sce->r.framapto= 100;
 359         sce->r.images= 100;
 360         sce->r.framelen= 1.0;
 361         sce->r.blurfac= 0.5;
 362         sce->r.frs_sec= 24;
 363         sce->r.frs_sec_base= 1;
 364         sce->r.edgeint= 10;
 365         sce->r.ocres = 128;
 366         sce->r.color_mgt_flag |= R_COLOR_MANAGEMENT;
 367         sce->r.gauss= 1.0;
 368
 369         /* deprecated but keep for upwards compat */
 370         sce->r.postgamma= 1.0;
 371         sce->r.posthue= 0.0;
 372         sce->r.postsat= 1.0;
 373
 374         sce->r.bake_mode= 1;    /* prevent to include render stuff here */
 375         sce->r.bake_filter= 2;
 376         sce->r.bake_osa= 5;
 377         sce->r.bake_flag= R_BAKE_CLEAR;
 378         sce->r.bake_normal_space= R_BAKE_SPACE_TANGENT;
 379         sce->r.scemode= R_DOCOMP|R_DOSEQ|R_EXTENSION;
 380         sce->r.stamp= R_STAMP_TIME|R_STAMP_FRAME|R_STAMP_DATE|R_STAMP_CAMERA|R_STAMP_SCENE|R_STAMP_FILENAME|R_STAMP_RENDERTIME;
 381         sce->r.stamp_font_id= 12;
 382         sce->r.fg_stamp[0]= sce->r.fg_stamp[1]= sce->r.fg_stamp[2]= 0.8f;
 383         sce->r.fg_stamp[3]= 1.0f;
 384         sce->r.bg_stamp[0]= sce->r.bg_stamp[1]= sce->r.bg_stamp[2]= 0.0f;
 385         sce->r.bg_stamp[3]= 0.25f;
 386         sce->r.raytrace_options = R_RAYTRACE_USE_INSTANCES;
 387
 388         sce->r.seq_prev_type= OB_SOLID;
 389         sce->r.seq_rend_type= OB_SOLID;
 390         sce->r.seq_flag= R_SEQ_GL_PREV;
 391
 392         sce->r.threads= 1;
 393
 394         sce->r.simplify_subsurf= 6;
 395         sce->r.simplify_particles= 1.0f;
 396         sce->r.simplify_shadowsamples= 16;
 397         sce->r.simplify_aosss= 1.0f;
 398
 399         sce->r.border.xmin = 0.0f;
 400         sce->r.border.ymin = 0.0f;
 401         sce->r.border.xmax = 1.0f;
 402         sce->r.border.ymax = 1.0f;
 403
 404         sce->toolsettings = MEM_callocN(sizeof(struct ToolSettings),"Tool Settings Struct");
 405         sce->toolsettings->cornertype=1;
 406         sce->toolsettings->degr = 90;
 407         sce->toolsettings->step = 9;
 408         sce->toolsettings->turn = 1;
 409         sce->toolsettings->extr_offs = 1;
 410         sce->toolsettings->doublimit = 0.001;
 411         sce->toolsettings->segments = 32;
 412         sce->toolsettings->rings = 32;
 413         sce->toolsettings->vertices = 32;
 414         sce->toolsettings->editbutflag = 1;
 415         sce->toolsettings->uvcalc_radius = 1.0f;
 416         sce->toolsettings->uvcalc_cubesize = 1.0f;
 417         sce->toolsettings->uvcalc_mapdir = 1;
 418         sce->toolsettings->uvcalc_mapalign = 1;
 419         sce->toolsettings->unwrapper = 1;
 420         sce->toolsettings->select_thresh= 0.01f;
 421         sce->toolsettings->jointrilimit = 0.8f;
 422
 423         sce->toolsettings->selectmode= SCE_SELECT_VERTEX;
 424         sce->toolsettings->uv_selectmode= UV_SELECT_VERTEX;
 425         sce->toolsettings->normalsize= 0.1;
 426         sce->toolsettings->autokey_mode= U.autokey_mode;
 427
 428         sce->toolsettings->skgen_resolution = 100;
 429         sce->toolsettings->skgen_threshold_internal     = 0.01f;
 430         sce->toolsettings->skgen_threshold_external     = 0.01f;
 431         sce->toolsettings->skgen_angle_limit                    = 45.0f;
 432         sce->toolsettings->skgen_length_ratio                   = 1.3f;
 433         sce->toolsettings->skgen_length_limit                   = 1.5f;
 434         sce->toolsettings->skgen_correlation_limit              = 0.98f;
 435         sce->toolsettings->skgen_symmetry_limit                 = 0.1f;
 436         sce->toolsettings->skgen_postpro = SKGEN_SMOOTH;
 437         sce->toolsettings->skgen_postpro_passes = 1;
 438         sce->toolsettings->skgen_options = SKGEN_FILTER_INTERNAL|SKGEN_FILTER_EXTERNAL|SKGEN_FILTER_SMART|SKGEN_HARMONIC|SKGEN_SUB_CORRELATION|SKGEN_STICK_TO_EMBEDDING;
 439         sce->toolsettings->skgen_subdivisions[0] = SKGEN_SUB_CORRELATION;
 440         sce->toolsettings->skgen_subdivisions[1] = SKGEN_SUB_LENGTH;
 441         sce->toolsettings->skgen_subdivisions[2] = SKGEN_SUB_ANGLE;
 442
 443         sce->toolsettings->proportional_size = 1.0f;
 444
 445         sce->physics_settings.gravity[0] = 0.0f;
 446         sce->physics_settings.gravity[1] = 0.0f;
 447         sce->physics_settings.gravity[2] = -9.81f;
 448         sce->physics_settings.flag = PHYS_GLOBAL_GRAVITY;
 449
 450         sce->unit.scale_length = 1.0f;
 451
 452         pset= &sce->toolsettings->particle;
 453         pset->flag= PE_KEEP_LENGTHS|PE_LOCK_FIRST|PE_DEFLECT_EMITTER|PE_AUTO_VELOCITY;
 454         pset->emitterdist= 0.25f;
 455         pset->totrekey= 5;
 456         pset->totaddkey= 5;
 457         pset->brushtype= PE_BRUSH_NONE;
 458         pset->draw_step= 2;
 459         pset->fade_frames= 2;
 460         pset->selectmode= SCE_SELECT_PATH;
 461         for (a=0; a<PE_TOT_BRUSH; a++) {
 462                 pset->brush[a].strength= 0.5;
 463                 pset->brush[a].size= 50;
 464                 pset->brush[a].step= 10;
 465                 pset->brush[a].count= 10;
 466         }
 467         pset->brush[PE_BRUSH_CUT].strength= 100;
 468
 469         sce->r.ffcodecdata.audio_mixrate = 44100;
 470         sce->r.ffcodecdata.audio_volume = 1.0f;
 471         sce->r.ffcodecdata.audio_bitrate = 192;
 472         sce->r.ffcodecdata.audio_channels = 2;
 473
 474         BLI_strncpy(sce->r.engine, "BLENDER_RENDER", sizeof(sce->r.engine));
 475
 476         sce->audio.distance_model = 2.0f;
 477         sce->audio.doppler_factor = 1.0f;
 478         sce->audio.speed_of_sound = 343.3f;
 479         sce->audio.volume = 1.0f;
 480
 481         BLI_strncpy(sce->r.pic, U.renderdir, sizeof(sce->r.pic));
 482
 483         BLI_init_rctf(&sce->r.safety, 0.1f, 0.9f, 0.1f, 0.9f);
 484         sce->r.osa= 8;
 485
 486         /* note; in header_info.c the scene copy happens..., if you add more to renderdata it has to be checked there */
 487         scene_add_render_layer(sce, NULL);
 488
 489         /* game data */
 490         sce->gm.stereoflag = STEREO_NOSTEREO;
 491         sce->gm.stereomode = STEREO_ANAGLYPH;
 492         sce->gm.eyeseparation = 0.10;
 493
 494         sce->gm.dome.angle = 180;
 495         sce->gm.dome.mode = DOME_FISHEYE;
 496         sce->gm.dome.res = 4;
 497         sce->gm.dome.resbuf = 1.0f;
 498         sce->gm.dome.tilt = 0;
 499
 500         sce->gm.xplay= 640;
 501         sce->gm.yplay= 480;
 502         sce->gm.freqplay= 60;
 503         sce->gm.depth= 32;
 504
 505         sce->gm.gravity= 9.8f;
 506         sce->gm.physicsEngine= WOPHY_BULLET;
 507         sce->gm.mode = 32; //XXX ugly harcoding, still not sure we should drop mode. 32 == 1 << 5 == use_occlusion_culling
 508         sce->gm.occlusionRes = 128;
 509         sce->gm.ticrate = 60;
 510         sce->gm.maxlogicstep = 5;
 511         sce->gm.physubstep = 1;
 512         sce->gm.maxphystep = 5;
 513
 514         sce->gm.flag = GAME_DISPLAY_LISTS;
 515         sce->gm.matmode = GAME_MAT_MULTITEX;
 516
 517         sce->gm.obstacleSimulation= OBSTSIMULATION_NONE;
 518         sce->gm.levelHeight = 2.f;
 519
 520         sce->gm.recastData.cellsize = 0.3f;
 521         sce->gm.recastData.cellheight = 0.2f;
 522         sce->gm.recastData.agentmaxslope = M_PI/2;
 523         sce->gm.recastData.agentmaxclimb = 0.9f;
 524         sce->gm.recastData.agentheight = 2.0f;
 525         sce->gm.recastData.agentradius = 0.6f;
 526         sce->gm.recastData.edgemaxlen = 12.0f;
 527         sce->gm.recastData.edgemaxerror = 1.3f;
 528         sce->gm.recastData.regionminsize = 8.f;
 529         sce->gm.recastData.regionmergesize = 20.f;
 530         sce->gm.recastData.vertsperpoly = 6;
 531         sce->gm.recastData.detailsampledist = 6.0f;
 532         sce->gm.recastData.detailsamplemaxerror = 1.0f;
 533
 534         sce->gm.exitkey = 218; // Blender key code for ESC
 535
 536         sound_create_scene(sce);
 537
 538         return sce;
 539 }
 540
 541 Base *object_in_scene(Object *ob, Scene *sce)
 542 {
 543         Base *base;
 544
 545         base= sce->base.first;
 546         while (base) {
 547                 if (base->object == ob) return base;
 548                 base= base->next;
 549         }
 550         return NULL;
 551 }
 552
 553 void set_scene_bg(Main *bmain, Scene *scene)
 554 {
 555         Scene *sce;
 556         Base *base;
 557         Object *ob;
 558         Group *group;
 559         GroupObject *go;
 560         int flag;
 561
 562         /* check for cyclic sets, for reading old files but also for definite security (py?) */
 563         scene_check_setscene(bmain, scene);
 564
 565         /* can happen when switching modes in other scenes */
 566         if (scene->obedit && !(scene->obedit->mode & OB_MODE_EDIT))
 567                 scene->obedit= NULL;
 568
 569         /* deselect objects (for dataselect) */
 570         for (ob= bmain->object.first; ob; ob= ob->id.next)
 571                 ob->flag &= ~(SELECT|OB_FROMGROUP);
 572
 573         /* group flags again */
 574         for (group= bmain->group.first; group; group= group->id.next) {
 575                 go= group->gobject.first;
 576                 while (go) {
 577                         if (go->ob) go->ob->flag |= OB_FROMGROUP;
 578                         go= go->next;
 579                 }
 580         }
 581
 582         /* sort baselist */
 583         DAG_scene_sort(bmain, scene);
 584
 585         /* ensure dags are built for sets */
 586         for (sce= scene->set; sce; sce= sce->set)
 587                 if (sce->theDag==NULL)
 588                         DAG_scene_sort(bmain, sce);
 589
 590         /* copy layers and flags from bases to objects */
 591         for (base= scene->base.first; base; base= base->next) {
 592                 ob= base->object;
 593                 ob->lay= base->lay;
 594
 595                 /* group patch... */
 596                 base->flag &= ~(OB_FROMGROUP);
 597                 flag= ob->flag & (OB_FROMGROUP);
 598                 base->flag |= flag;
 599
 600                 /* not too nice... for recovering objects with lost data */
 601                 //if (ob->pose==NULL) base->flag &= ~OB_POSEMODE;
 602                 ob->flag= base->flag;
 603
 604                 ob->ctime= -1234567.0;  /* force ipo to be calculated later */
 605         }
 606         /* no full animation update, this to enable render code to work (render code calls own animation updates) */
 607 }
 608
 609 /* called from creator.c */
 610 Scene *set_scene_name(Main *bmain, const char *name)
 611 {
 612         Scene *sce= (Scene *)find_id("SC", name);
 613         if (sce) {
 614                 set_scene_bg(bmain, sce);
 615                 printf("Scene switch: '%s' in file: '%s'\n", name, G.main->name);
 616                 return sce;
 617         }
 618
 619         printf("Can't find scene: '%s' in file: '%s'\n", name, G.main->name);
 620         return NULL;
 621 }
 622
 623 void unlink_scene(Main *bmain, Scene *sce, Scene *newsce)
 624 {
 625         Scene *sce1;
 626         bScreen *sc;
 627
 628         /* check all sets */
 629         for (sce1= bmain->scene.first; sce1; sce1= sce1->id.next)
 630                 if (sce1->set == sce)
 631                         sce1->set= NULL;
 632
 633         /* check all sequences */
 634         clear_scene_in_allseqs(bmain, sce);
 635
 636         /* check render layer nodes in other scenes */
 637         clear_scene_in_nodes(bmain, sce);
 638
 639         /* al screens */
 640         for (sc= bmain->screen.first; sc; sc= sc->id.next)
 641                 if (sc->scene == sce)
 642                         sc->scene= newsce;
 643
 644         free_libblock(&bmain->scene, sce);
 645 }
 646
 647 /* used by metaballs
 648  * doesnt return the original duplicated object, only dupli's
 649  */
 650 int next_object(Scene **scene, int val, Base **base, Object **ob)
 651 {
 652         static ListBase *duplilist= NULL;
 653         static DupliObject *dupob;
 654         static int fase= F_START, in_next_object= 0;
 655         int run_again=1;
 656
 657         /* init */
 658         if (val==0) {
 659                 fase= F_START;
 660                 dupob= NULL;
 661
 662                 /* XXX particle systems with metas+dupligroups call this recursively */
 663                 /* see bug #18725 */
 664                 if (in_next_object) {
 665                         printf("ERROR: Metaball generation called recursively, not supported\n");
 666
 667                         return F_ERROR;
 668                 }
 669         }
 670         else {
 671                 in_next_object= 1;
 672
 673                 /* run_again is set when a duplilist has been ended */
 674                 while (run_again) {
 675                         run_again= 0;
 676
 677                         /* the first base */
 678                         if (fase==F_START) {
 679                                 *base= (*scene)->base.first;
 680                                 if (*base) {
 681                                         *ob= (*base)->object;
 682                                         fase= F_SCENE;
 683                                 }
 684                                 else {
 685                                         /* exception: empty scene */
 686                                         while ((*scene)->set) {
 687                                                 (*scene)= (*scene)->set;
 688                                                 if ((*scene)->base.first) {
 689                                                         *base= (*scene)->base.first;
 690                                                         *ob= (*base)->object;
 691                                                         fase= F_SCENE;
 692                                                         break;
 693                                                 }
 694                                         }
 695                                 }
 696                         }
 697                         else {
 698                                 if (*base && fase!=F_DUPLI) {
 699                                         *base= (*base)->next;
 700                                         if (*base) *ob= (*base)->object;
 701                                         else {
 702                                                 if (fase==F_SCENE) {
 703                                                         /* (*scene) is finished, now do the set */
 704                                                         while ((*scene)->set) {
 705                                                                 (*scene)= (*scene)->set;
 706                                                                 if ((*scene)->base.first) {
 707                                                                         *base= (*scene)->base.first;
 708                                                                         *ob= (*base)->object;
 709                                                                         break;
 710                                                                 }
 711                                                         }
 712                                                 }
 713                                         }
 714                                 }
 715                         }
 716
 717                         if (*base == NULL) fase= F_START;
 718                         else {
 719                                 if (fase!=F_DUPLI) {
 720                                         if ( (*base)->object->transflag & OB_DUPLI) {
 721                                                 /* groups cannot be duplicated for mballs yet,
 722                                                  * this enters eternal loop because of
 723                                                  * makeDispListMBall getting called inside of group_duplilist */
 724                                                 if ((*base)->object->dup_group == NULL) {
 725                                                         duplilist= object_duplilist((*scene), (*base)->object);
 726
 727                                                         dupob= duplilist->first;
 728
 729                                                         if (!dupob)
 730                                                                 free_object_duplilist(duplilist);
 731                                                 }
 732                                         }
 733                                 }
 734                                 /* handle dupli's */
 735                                 if (dupob) {
 736
 737                                         copy_m4_m4(dupob->ob->obmat, dupob->mat);
 738
 739                                         (*base)->flag |= OB_FROMDUPLI;
 740                                         *ob= dupob->ob;
 741                                         fase= F_DUPLI;
 742
 743                                         dupob= dupob->next;
 744                                 }
 745                                 else if (fase==F_DUPLI) {
 746                                         fase= F_SCENE;
 747                                         (*base)->flag &= ~OB_FROMDUPLI;
 748
 749                                         for (dupob= duplilist->first; dupob; dupob= dupob->next) {
 750                                                 copy_m4_m4(dupob->ob->obmat, dupob->omat);
 751                                         }
 752
 753                                         free_object_duplilist(duplilist);
 754                                         duplilist= NULL;
 755                                         run_again= 1;
 756                                 }
 757                         }
 758                 }
 759         }
 760
 761 #if 0
 762         if (ob && *ob) {
 763                 printf("Scene: '%s', '%s'\n", (*scene)->id.name+2, (*ob)->id.name+2);
 764         }
 765 #endif
 766
 767         /* reset recursion test */
 768         in_next_object= 0;
 769
 770         return fase;
 771 }
 772
 773 Object *scene_find_camera(Scene *sc)
 774 {
 775         Base *base;
 776
 777         for (base= sc->base.first; base; base= base->next)
 778                 if (base->object->type==OB_CAMERA)
 779                         return base->object;
 780
 781         return NULL;
 782 }
 783
 784 #ifdef DURIAN_CAMERA_SWITCH
 785 Object *scene_camera_switch_find(Scene *scene)
 786 {
 787         TimeMarker *m;
 788         int cfra = scene->r.cfra;
 789         int frame = -(MAXFRAME + 1);
 790         Object *camera= NULL;
 791
 792         for (m= scene->markers.first; m; m= m->next) {
 793                 if (m->camera && (m->camera->restrictflag & OB_RESTRICT_RENDER)==0 && (m->frame <= cfra) && (m->frame > frame)) {
 794                         camera= m->camera;
 795                         frame= m->frame;
 796
 797                         if (frame == cfra)
 798                                 break;
 799
 800                 }
 801         }
 802         return camera;
 803 }
 804 #endif
 805
 806 int scene_camera_switch_update(Scene *scene)
 807 {
 808 #ifdef DURIAN_CAMERA_SWITCH
 809         Object *camera= scene_camera_switch_find(scene);
 810         if (camera) {
 811                 scene->camera= camera;
 812                 return 1;
 813         }
 814 #else
 815         (void)scene;
 816 #endif
 817         return 0;
 818 }
 819
 820 char *scene_find_marker_name(Scene *scene, int frame)
 821 {
 822         ListBase *markers= &scene->markers;
 823         TimeMarker *m1, *m2;
 824
 825         /* search through markers for match */
 826         for (m1=markers->first, m2=markers->last; m1 && m2; m1=m1->next, m2=m2->prev) {
 827                 if (m1->frame==frame)
 828                         return m1->name;
 829
 830                 if (m1 == m2)
 831                         break;
 832
 833                 if (m2->frame==frame)
 834                         return m2->name;
 835         }
 836
 837         return NULL;
 838 }
 839
 840 /* return the current marker for this frame,
 841  * we can have more then 1 marker per frame, this just returns the first :/ */
 842 char *scene_find_last_marker_name(Scene *scene, int frame)
 843 {
 844         TimeMarker *marker, *best_marker = NULL;
 845         int best_frame = -MAXFRAME*2;
 846         for (marker= scene->markers.first; marker; marker= marker->next) {
 847                 if (marker->frame==frame) {
 848                         return marker->name;
 849                 }
 850
 851                 if ( marker->frame > best_frame && marker->frame < frame) {
 852                         best_marker = marker;
 853                         best_frame = marker->frame;
 854                 }
 855         }
 856
 857         return best_marker ? best_marker->name : NULL;
 858 }
 859
 860
 861 Base *scene_add_base(Scene *sce, Object *ob)
 862 {
 863         Base *b= MEM_callocN(sizeof(*b), "scene_add_base");
 864         BLI_addhead(&sce->base, b);
 865
 866         b->object= ob;
 867         b->flag= ob->flag;
 868         b->lay= ob->lay;
 869
 870         return b;
 871 }
 872
 873 void scene_deselect_all(Scene *sce)
 874 {
 875         Base *b;
 876
 877         for (b= sce->base.first; b; b= b->next) {
 878                 b->flag&= ~SELECT;
 879                 b->object->flag= b->flag;
 880         }
 881 }
 882
 883 void scene_select_base(Scene *sce, Base *selbase)
 884 {
 885         scene_deselect_all(sce);
 886
 887         selbase->flag |= SELECT;
 888         selbase->object->flag= selbase->flag;
 889
 890         sce->basact= selbase;
 891 }
 892
 893 /* checks for cycle, returns 1 if it's all OK */
 894 int scene_check_setscene(Main *bmain, Scene *sce)
 895 {
 896         Scene *scene;
 897         int a, totscene;
 898
 899         if (sce->set==NULL) return 1;
 900
 901         totscene= 0;
 902         for (scene= bmain->scene.first; scene; scene= scene->id.next)
 903                 totscene++;
 904
 905         for (a=0, scene=sce; scene->set; scene=scene->set, a++) {
 906                 /* more iterations than scenes means we have a cycle */
 907                 if (a > totscene) {
 908                         /* the tested scene gets zero'ed, that's typically current scene */
 909                         sce->set= NULL;
 910                         return 0;
 911                 }
 912         }
 913
 914         return 1;
 915 }
 916
 917 /* This function is needed to cope with fractional frames - including two Blender rendering features
 918  * mblur (motion blur that renders 'subframes' and blurs them together), and fields rendering.
 919  */
 920 float BKE_curframe(Scene *scene)
 921 {
 922         return BKE_frame_to_ctime(scene, scene->r.cfra);
 923 }
 924
 925 /* This function is used to obtain arbitrary fractional frames */
 926 float BKE_frame_to_ctime(Scene *scene, const float frame)
 927 {
 928         float ctime = frame;
 929         ctime += scene->r.subframe;
 930         ctime *= scene->r.framelen;
 931
 932         return ctime;
 933 }
 934
 935 /* drivers support/hacks
 936  *      - this method is called from scene_update_tagged_recursive(), so gets included in viewport + render
 937  *      - these are always run since the depsgraph can't handle non-object data
 938  *      - these happen after objects are all done so that we can read in their final transform values,
 939  *        though this means that objects can't refer to scene info for guidance...
 940  */
 941 static void scene_update_drivers(Main *UNUSED(bmain), Scene *scene)
 942 {
 943         float ctime = BKE_curframe(scene);
 944
 945         /* scene itself */
 946         if (scene->adt && scene->adt->drivers.first) {
 947                 BKE_animsys_evaluate_animdata(scene, &scene->id, scene->adt, ctime, ADT_RECALC_DRIVERS);
 948         }
 949
 950         /* world */
 951         // TODO: what about world textures? but then those have nodes too...
 952         if (scene->world) {
 953                 ID *wid = (ID *)scene->world;
 954                 AnimData *adt= BKE_animdata_from_id(wid);
 955
 956                 if (adt && adt->drivers.first)
 957                         BKE_animsys_evaluate_animdata(scene, wid, adt, ctime, ADT_RECALC_DRIVERS);
 958         }
 959
 960         /* nodes */
 961         if (scene->nodetree) {
 962                 ID *nid = (ID *)scene->nodetree;
 963                 AnimData *adt= BKE_animdata_from_id(nid);
 964
 965                 if (adt && adt->drivers.first)
 966                         BKE_animsys_evaluate_animdata(scene, nid, adt, ctime, ADT_RECALC_DRIVERS);
 967         }
 968 }
 969
 970 static void scene_update_tagged_recursive(Main *bmain, Scene *scene, Scene *scene_parent)
 971 {
 972         Base *base;
 973
 974
 975         scene->customdata_mask= scene_parent->customdata_mask;
 976
 977         /* sets first, we allow per definition current scene to have
 978          * dependencies on sets, but not the other way around. */
 979         if (scene->set)
 980                 scene_update_tagged_recursive(bmain, scene->set, scene_parent);
 981
 982         /* scene objects */
 983         for (base= scene->base.first; base; base= base->next) {
 984                 Object *ob= base->object;
 985
 986                 object_handle_update(scene_parent, ob);
 987
 988                 if (ob->dup_group && (ob->transflag & OB_DUPLIGROUP))
 989                         group_handle_recalc_and_update(scene_parent, ob, ob->dup_group);
 990
 991                 /* always update layer, so that animating layers works */
 992                 base->lay= ob->lay;
 993         }
 994
 995         /* scene drivers... */
 996         scene_update_drivers(bmain, scene);
 997
 998         /* update sound system animation */
 999         sound_update_scene(scene);
1000 }
1001
1002 /* this is called in main loop, doing tagged updates before redraw */
1003 void scene_update_tagged(Main *bmain, Scene *scene)
1004 {
1005         /* keep this first */
1006         BLI_exec_cb(bmain, &scene->id, BLI_CB_EVT_SCENE_UPDATE_PRE);
1007
1008         /* flush recalc flags to dependencies */
1009         DAG_ids_flush_tagged(bmain);
1010
1011         scene->physics_settings.quick_cache_step= 0;
1012
1013         /* update all objects: drivers, matrices, displists, etc. flags set
1014          * by depgraph or manual, no layer check here, gets correct flushed
1015          *
1016          * in the future this should handle updates for all datablocks, not
1017          * only objects and scenes. - brecht */
1018         scene_update_tagged_recursive(bmain, scene, scene);
1019
1020         /* extra call here to recalc scene animation (for sequencer) */
1021         {
1022                 AnimData *adt= BKE_animdata_from_id(&scene->id);
1023                 float ctime = BKE_curframe(scene);
1024
1025                 if (adt && (adt->recalc & ADT_RECALC_ANIM))
1026                         BKE_animsys_evaluate_animdata(scene, &scene->id, adt, ctime, 0);
1027         }
1028
1029         /* quick point cache updates */
1030         if (scene->physics_settings.quick_cache_step)
1031                 BKE_ptcache_quick_cache_all(bmain, scene);
1032
1033         /* notify editors and python about recalc */
1034         BLI_exec_cb(bmain, &scene->id, BLI_CB_EVT_SCENE_UPDATE_POST);
1035         DAG_ids_check_recalc(bmain, scene, FALSE);
1036
1037         /* clear recalc flags */
1038         DAG_ids_clear_recalc(bmain);
1039 }
1040
1041 /* applies changes right away, does all sets too */
1042 void scene_update_for_newframe(Main *bmain, Scene *sce, unsigned int lay)
1043 {
1044         float ctime = BKE_curframe(sce);
1045         Scene *sce_iter;
1046
1047         /* keep this first */
1048         BLI_exec_cb(bmain, &sce->id, BLI_CB_EVT_FRAME_CHANGE_PRE);
1049         BLI_exec_cb(bmain, &sce->id, BLI_CB_EVT_SCENE_UPDATE_PRE);
1050
1051         sound_set_cfra(sce->r.cfra);
1052
1053         /* clear animation overrides */
1054         // XXX TODO...
1055
1056         for (sce_iter= sce; sce_iter; sce_iter= sce_iter->set) {
1057                 if (sce_iter->theDag==NULL)
1058                         DAG_scene_sort(bmain, sce_iter);
1059         }
1060
1061         /* flush recalc flags to dependencies, if we were only changing a frame
1062          * this would not be necessary, but if a user or a script has modified
1063          * some datablock before scene_update_tagged was called, we need the flush */
1064         DAG_ids_flush_tagged(bmain);
1065
1066         /* Following 2 functions are recursive
1067          * so don't call within 'scene_update_tagged_recursive' */
1068         DAG_scene_update_flags(bmain, sce, lay, TRUE);   // only stuff that moves or needs display still
1069
1070         /* All 'standard' (i.e. without any dependencies) animation is handled here,
1071          * with an 'local' to 'macro' order of evaluation. This should ensure that
1072          * settings stored nestled within a hierarchy (i.e. settings in a Texture block
1073          * can be overridden by settings from Scene, which owns the Texture through a hierarchy
1074          * such as Scene->World->MTex/Texture) can still get correctly overridden.
1075          */
1076         BKE_animsys_evaluate_all_animation(bmain, sce, ctime);
1077         /*...done with recusrive funcs */
1078
1079         /* object_handle_update() on all objects, groups and sets */
1080         scene_update_tagged_recursive(bmain, sce, sce);
1081
1082         /* notify editors and python about recalc */
1083         BLI_exec_cb(bmain, &sce->id, BLI_CB_EVT_SCENE_UPDATE_POST);
1084         BLI_exec_cb(bmain, &sce->id, BLI_CB_EVT_FRAME_CHANGE_POST);
1085
1086         DAG_ids_check_recalc(bmain, sce, TRUE);
1087
1088         /* clear recalc flags */
1089         DAG_ids_clear_recalc(bmain);
1090 }
1091
1092 /* return default layer, also used to patch old files */
1093 SceneRenderLayer *scene_add_render_layer(Scene *sce, const char *name)
1094 {
1095         SceneRenderLayer *srl;
1096
1097         if (!name)
1098                 name= "RenderLayer";
1099
1100         srl= MEM_callocN(sizeof(SceneRenderLayer), "new render layer");
1101         BLI_strncpy(srl->name, name, sizeof(srl->name));
1102         BLI_uniquename(&sce->r.layers, srl, "RenderLayer", '.', offsetof(SceneRenderLayer, name), sizeof(srl->name));
1103         BLI_addtail(&sce->r.layers, srl);
1104
1105         /* note, this is also in render, pipeline.c, to make layer when scenedata doesnt have it */
1106         srl->lay= (1<<20) -1;
1107         srl->layflag= 0x7FFF;   /* solid ztra halo edge strand */
1108         srl->passflag= SCE_PASS_COMBINED|SCE_PASS_Z;
1109
1110         return srl;
1111 }
1112
1113 int scene_remove_render_layer(Main *bmain, Scene *scene, SceneRenderLayer *srl)
1114 {
1115         const int act= BLI_findindex(&scene->r.layers, srl);
1116         Scene *sce;
1117
1118         if (act == -1) {
1119                 return 0;
1120         }
1121         else if ( (scene->r.layers.first == scene->r.layers.last) &&
1122                   (scene->r.layers.first == srl))
1123         {
1124                 /* ensure 1 layer is kept */
1125                 return 0;
1126         }
1127
1128         BLI_remlink(&scene->r.layers, srl);
1129         MEM_freeN(srl);
1130
1131         scene->r.actlay= 0;
1132
1133         for (sce = bmain->scene.first; sce; sce = sce->id.next) {
1134                 if (sce->nodetree) {
1135                         bNode *node;
1136                         for (node = sce->nodetree->nodes.first; node; node = node->next) {
1137                                 if (node->type==CMP_NODE_R_LAYERS && (Scene*)node->id==scene) {
1138                                         if (node->custom1==act)
1139                                                 node->custom1= 0;
1140                                         else if (node->custom1>act)
1141                                                 node->custom1--;
1142                                 }
1143                         }
1144                 }
1145         }
1146
1147         return 1;
1148 }
1149
1150 /* render simplification */
1151
1152 int get_render_subsurf_level(RenderData *r, int lvl)
1153 {
1154         if (r->mode & R_SIMPLIFY)
1155                 return MIN2(r->simplify_subsurf, lvl);
1156         else
1157                 return lvl;
1158 }
1159
1160 int get_render_child_particle_number(RenderData *r, int num)
1161 {
1162         if (r->mode & R_SIMPLIFY)
1163                 return (int)(r->simplify_particles*num);
1164         else
1165                 return num;
1166 }
1167
1168 int get_render_shadow_samples(RenderData *r, int samples)
1169 {
1170         if ((r->mode & R_SIMPLIFY) && samples > 0)
1171                 return MIN2(r->simplify_shadowsamples, samples);
1172         else
1173                 return samples;
1174 }
1175
1176 float get_render_aosss_error(RenderData *r, float error)
1177 {
1178         if (r->mode & R_SIMPLIFY)
1179                 return ((1.0f-r->simplify_aosss)*10.0f + 1.0f)*error;
1180         else
1181                 return error;
1182 }
1183
1184 /* helper function for the SETLOOPER macro */
1185 Base *_setlooper_base_step(Scene **sce_iter, Base *base)
1186 {
1187         if (base && base->next) {
1188                 /* common case, step to the next */
1189                 return base->next;
1190         }
1191         else if (base==NULL && (*sce_iter)->base.first) {
1192                 /* first time looping, return the scenes first base */
1193                 return (Base *)(*sce_iter)->base.first;
1194         }
1195         else {
1196                 /* reached the end, get the next base in the set */
1197                 while ((*sce_iter= (*sce_iter)->set)) {
1198                         base= (Base *)(*sce_iter)->base.first;
1199                         if (base) {
1200                                 return base;
1201                         }
1202                 }
1203         }
1204
1205         return NULL;
1206 }
1207
1208 int scene_use_new_shading_nodes(Scene *scene)
1209 {
1210         RenderEngineType *type= RE_engines_find(scene->r.engine);
1211         return (type && type->flag & RE_USE_SHADING_NODES);
1212 }
1213