Depsgraph: Cleanup, split build_animation
[blender.git] / source / blender / depsgraph / intern / builder / deg_builder_relations.cc
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) 2013 Blender Foundation.
19  * All rights reserved.
20  *
21  * Original Author: Joshua Leung
22  * Contributor(s): Based on original depsgraph.c code - Blender Foundation (2005-2013)
23  *
24  * ***** END GPL LICENSE BLOCK *****
25  */
26
27 /** \file blender/depsgraph/intern/builder/deg_builder_relations.cc
28  *  \ingroup depsgraph
29  *
30  * Methods for constructing depsgraph
31  */
32
33 #include "intern/builder/deg_builder_relations.h"
34
35 #include <stdio.h>
36 #include <stdlib.h>
37 #include <cstring>  /* required for STREQ later on. */
38
39 #include "MEM_guardedalloc.h"
40
41 #include "BLI_utildefines.h"
42 #include "BLI_blenlib.h"
43
44 extern "C" {
45 #include "DNA_action_types.h"
46 #include "DNA_anim_types.h"
47 #include "DNA_armature_types.h"
48 #include "DNA_camera_types.h"
49 #include "DNA_cachefile_types.h"
50 #include "DNA_constraint_types.h"
51 #include "DNA_curve_types.h"
52 #include "DNA_effect_types.h"
53 #include "DNA_gpencil_types.h"
54 #include "DNA_group_types.h"
55 #include "DNA_key_types.h"
56 #include "DNA_lamp_types.h"
57 #include "DNA_material_types.h"
58 #include "DNA_mask_types.h"
59 #include "DNA_mesh_types.h"
60 #include "DNA_meta_types.h"
61 #include "DNA_movieclip_types.h"
62 #include "DNA_node_types.h"
63 #include "DNA_particle_types.h"
64 #include "DNA_object_types.h"
65 #include "DNA_rigidbody_types.h"
66 #include "DNA_scene_types.h"
67 #include "DNA_texture_types.h"
68 #include "DNA_world_types.h"
69 #include "DNA_object_force.h"
70
71 #include "BKE_action.h"
72 #include "BKE_armature.h"
73 #include "BKE_animsys.h"
74 #include "BKE_constraint.h"
75 #include "BKE_curve.h"
76 #include "BKE_effect.h"
77 #include "BKE_collision.h"
78 #include "BKE_fcurve.h"
79 #include "BKE_group.h"
80 #include "BKE_key.h"
81 #include "BKE_library.h"
82 #include "BKE_main.h"
83 #include "BKE_material.h"
84 #include "BKE_mball.h"
85 #include "BKE_modifier.h"
86 #include "BKE_node.h"
87 #include "BKE_object.h"
88 #include "BKE_particle.h"
89 #include "BKE_rigidbody.h"
90 #include "BKE_sound.h"
91 #include "BKE_texture.h"
92 #include "BKE_tracking.h"
93 #include "BKE_world.h"
94
95 #include "RNA_access.h"
96 #include "RNA_types.h"
97 } /* extern "C" */
98
99 #include "DEG_depsgraph.h"
100 #include "DEG_depsgraph_build.h"
101
102 #include "intern/builder/deg_builder.h"
103 #include "intern/builder/deg_builder_pchanmap.h"
104
105 #include "intern/nodes/deg_node.h"
106 #include "intern/nodes/deg_node_component.h"
107 #include "intern/nodes/deg_node_operation.h"
108
109 #include "intern/depsgraph_intern.h"
110 #include "intern/depsgraph_types.h"
111
112 #include "util/deg_util_foreach.h"
113
114 namespace DEG {
115
116 namespace {
117
118 struct BuilderWalkUserData {
119         DepsgraphRelationBuilder *builder;
120 };
121
122 void modifier_walk(void *user_data,
123                    struct Object * /*object*/,
124                    struct Object **obpoin,
125                    int /*cb_flag*/)
126 {
127         BuilderWalkUserData *data = (BuilderWalkUserData *)user_data;
128         if (*obpoin) {
129                 data->builder->build_object(*obpoin);
130         }
131 }
132
133 void constraint_walk(bConstraint * /*con*/,
134                      ID **idpoin,
135                      bool /*is_reference*/,
136                      void *user_data)
137 {
138         BuilderWalkUserData *data = (BuilderWalkUserData *)user_data;
139         if (*idpoin) {
140                 ID *id = *idpoin;
141                 if (GS(id->name) == ID_OB) {
142                         data->builder->build_object((Object *)id);
143                 }
144         }
145 }
146
147 }  /* namespace */
148
149 /* ***************** */
150 /* Relations Builder */
151
152 /* TODO(sergey): This is somewhat weak, but we don't want neither false-positive
153  * time dependencies nor special exceptions in the depsgraph evaluation.
154  */
155 static bool python_driver_depends_on_time(ChannelDriver *driver)
156 {
157         if (driver->expression[0] == '\0') {
158                 /* Empty expression depends on nothing. */
159                 return false;
160         }
161         if (strchr(driver->expression, '(') != NULL) {
162                 /* Function calls are considered dependent on a time. */
163                 return true;
164         }
165         if (strstr(driver->expression, "frame") != NULL) {
166                 /* Variable `frame` depends on time. */
167                 /* TODO(sergey): This is a bit weak, but not sure about better way of
168                  * handling this.
169                  */
170                 return true;
171         }
172         /* Possible indirect time relation s should be handled via variable
173          * targets.
174          */
175         return false;
176 }
177
178 static bool particle_system_depends_on_time(ParticleSystem *psys)
179 {
180         ParticleSettings *part = psys->part;
181         /* Non-hair particles we always consider dependent on time. */
182         if (part->type != PART_HAIR) {
183                 return true;
184         }
185         /* Dynamics always depends on time. */
186         if (psys->flag & PSYS_HAIR_DYNAMICS) {
187                 return true;
188         }
189         /* TODO(sergey): Check what else makes hair dependent on time. */
190         return false;
191 }
192
193 static bool object_particles_depends_on_time(Object *object)
194 {
195         LINKLIST_FOREACH (ParticleSystem *, psys, &object->particlesystem) {
196                 if (particle_system_depends_on_time(psys)) {
197                         return true;
198                 }
199         }
200         return false;
201 }
202
203 /* **** General purpose functions ****  */
204
205 DepsgraphRelationBuilder::DepsgraphRelationBuilder(Main *bmain,
206                                                    Depsgraph *graph)
207     : bmain_(bmain),
208       graph_(graph),
209       scene_(NULL)
210 {
211 }
212
213 TimeSourceDepsNode *DepsgraphRelationBuilder::get_node(
214         const TimeSourceKey &key) const
215 {
216         if (key.id) {
217                 /* XXX TODO */
218                 return NULL;
219         }
220         else {
221                 return graph_->time_source;
222         }
223 }
224
225 ComponentDepsNode *DepsgraphRelationBuilder::get_node(
226         const ComponentKey &key) const
227 {
228         IDDepsNode *id_node = graph_->find_id_node(key.id);
229         if (!id_node) {
230                 fprintf(stderr, "find_node component: Could not find ID %s\n",
231                         (key.id != NULL) ? key.id->name : "<null>");
232                 return NULL;
233         }
234
235         ComponentDepsNode *node = id_node->find_component(key.type, key.name);
236         return node;
237 }
238
239 OperationDepsNode *DepsgraphRelationBuilder::get_node(
240         const OperationKey &key) const
241 {
242         OperationDepsNode *op_node = find_node(key);
243         if (op_node == NULL) {
244                 fprintf(stderr, "find_node_operation: Failed for (%s, '%s')\n",
245                         DEG_OPNAMES[key.opcode], key.name);
246         }
247         return op_node;
248 }
249
250 DepsNode *DepsgraphRelationBuilder::get_node(const RNAPathKey &key) const
251 {
252         return graph_->find_node_from_pointer(&key.ptr, key.prop);
253 }
254
255 OperationDepsNode *DepsgraphRelationBuilder::find_node(
256         const OperationKey &key) const
257 {
258         IDDepsNode *id_node = graph_->find_id_node(key.id);
259         if (!id_node) {
260                 return NULL;
261         }
262         ComponentDepsNode *comp_node = id_node->find_component(key.component_type,
263                                                                key.component_name);
264         if (!comp_node) {
265                 return NULL;
266         }
267         return comp_node->find_operation(key.opcode, key.name, key.name_tag);
268 }
269
270 bool DepsgraphRelationBuilder::has_node(const OperationKey &key) const
271 {
272         return find_node(key) != NULL;
273 }
274
275 void DepsgraphRelationBuilder::add_time_relation(TimeSourceDepsNode *timesrc,
276                                                  DepsNode *node_to,
277                                                  const char *description)
278 {
279         if (timesrc && node_to) {
280                 graph_->add_new_relation(timesrc, node_to, description);
281         }
282         else {
283                 DEG_DEBUG_PRINTF("add_time_relation(%p = %s, %p = %s, %s) Failed\n",
284                                  timesrc,   (timesrc) ? timesrc->identifier().c_str() : "<None>",
285                                  node_to,   (node_to) ? node_to->identifier().c_str() : "<None>",
286                                  description);
287         }
288 }
289
290 void DepsgraphRelationBuilder::add_operation_relation(
291         OperationDepsNode *node_from,
292         OperationDepsNode *node_to,
293         const char *description)
294 {
295         if (node_from && node_to) {
296                 graph_->add_new_relation(node_from, node_to, description);
297         }
298         else {
299                 DEG_DEBUG_PRINTF("add_operation_relation(%p = %s, %p = %s, %s) Failed\n",
300                                  node_from, (node_from) ? node_from->identifier().c_str() : "<None>",
301                                  node_to,   (node_to)   ? node_to->identifier().c_str() : "<None>",
302                                  description);
303         }
304 }
305
306 void DepsgraphRelationBuilder::add_collision_relations(const OperationKey &key, Scene *scene, Object *object, Group *group, int layer, bool dupli, const char *name)
307 {
308         unsigned int numcollobj;
309         Object **collobjs = get_collisionobjects_ext(scene, object, group, layer, &numcollobj, eModifierType_Collision, dupli);
310
311         for (unsigned int i = 0; i < numcollobj; i++)
312         {
313                 Object *ob1 = collobjs[i];
314
315                 ComponentKey trf_key(&ob1->id, DEG_NODE_TYPE_TRANSFORM);
316                 add_relation(trf_key, key, name);
317
318                 ComponentKey coll_key(&ob1->id, DEG_NODE_TYPE_GEOMETRY);
319                 add_relation(coll_key, key, name);
320         }
321
322         if (collobjs)
323                 MEM_freeN(collobjs);
324 }
325
326 void DepsgraphRelationBuilder::add_forcefield_relations(const OperationKey &key, Scene *scene, Object *object, ParticleSystem *psys, EffectorWeights *eff, bool add_absorption, const char *name)
327 {
328         ListBase *effectors = pdInitEffectors(scene, object, psys, eff, false);
329
330         if (effectors) {
331                 for (EffectorCache *eff = (EffectorCache *)effectors->first; eff; eff = eff->next) {
332                         if (eff->ob != object) {
333                                 ComponentKey eff_key(&eff->ob->id, DEG_NODE_TYPE_TRANSFORM);
334                                 add_relation(eff_key, key, name);
335                         }
336
337                         if (eff->psys) {
338                                 if (eff->ob != object) {
339                                         ComponentKey eff_key(&eff->ob->id, DEG_NODE_TYPE_EVAL_PARTICLES);
340                                         add_relation(eff_key, key, name);
341
342                                         /* TODO: remove this when/if EVAL_PARTICLES is sufficient for up to date particles */
343                                         ComponentKey mod_key(&eff->ob->id, DEG_NODE_TYPE_GEOMETRY);
344                                         add_relation(mod_key, key, name);
345                                 }
346                                 else if (eff->psys != psys) {
347                                         OperationKey eff_key(&eff->ob->id, DEG_NODE_TYPE_EVAL_PARTICLES, DEG_OPCODE_PARTICLE_SYSTEM_EVAL, eff->psys->name);
348                                         add_relation(eff_key, key, name);
349                                 }
350                         }
351
352                         if (eff->pd->forcefield == PFIELD_SMOKEFLOW && eff->pd->f_source) {
353                                 ComponentKey trf_key(&eff->pd->f_source->id, DEG_NODE_TYPE_TRANSFORM);
354                                 add_relation(trf_key, key, "Smoke Force Domain");
355
356                                 ComponentKey eff_key(&eff->pd->f_source->id, DEG_NODE_TYPE_GEOMETRY);
357                                 add_relation(eff_key, key, "Smoke Force Domain");
358                         }
359
360                         if (add_absorption && (eff->pd->flag & PFIELD_VISIBILITY)) {
361                                 add_collision_relations(key, scene, object, NULL, eff->ob->lay, true, "Force Absorption");
362                         }
363                 }
364         }
365
366         pdEndEffectors(&effectors);
367 }
368
369 Depsgraph *DepsgraphRelationBuilder::getGraph()
370 {
371         return graph_;
372 }
373
374 /* **** Functions to build relations between entities  **** */
375
376 void DepsgraphRelationBuilder::begin_build()
377 {
378         /* LIB_TAG_DOIT is used to indicate whether node for given ID was already
379          * created or not.
380          */
381         BKE_main_id_tag_all(bmain_, LIB_TAG_DOIT, false);
382         /* XXX nested node trees are notr included in tag-clearing above,
383          * so we need to do this manually.
384          */
385         FOREACH_NODETREE(bmain_, nodetree, id)
386         {
387                 if (id != (ID *)nodetree) {
388                         nodetree->id.tag &= ~LIB_TAG_DOIT;
389                 }
390         }
391         FOREACH_NODETREE_END;
392 }
393
394 void DepsgraphRelationBuilder::build_group(Object *object, Group *group)
395 {
396         ID *group_id = &group->id;
397         bool group_done = (group_id->tag & LIB_TAG_DOIT) != 0;
398         OperationKey object_local_transform_key(&object->id,
399                                                 DEG_NODE_TYPE_TRANSFORM,
400                                                 DEG_OPCODE_TRANSFORM_LOCAL);
401         LINKLIST_FOREACH (GroupObject *, go, &group->gobject) {
402                 if (!group_done) {
403                         build_object(go->ob);
404                 }
405                 ComponentKey dupli_transform_key(&go->ob->id, DEG_NODE_TYPE_TRANSFORM);
406                 add_relation(dupli_transform_key, object_local_transform_key, "Dupligroup");
407         }
408         group_id->tag |= LIB_TAG_DOIT;
409 }
410
411 void DepsgraphRelationBuilder::build_object(Object *object)
412 {
413         if (object->id.tag & LIB_TAG_DOIT) {
414                 return;
415         }
416         object->id.tag |= LIB_TAG_DOIT;
417         /* Object Transforms */
418         eDepsOperation_Code base_op = (object->parent) ? DEG_OPCODE_TRANSFORM_PARENT
419                                                        : DEG_OPCODE_TRANSFORM_LOCAL;
420         OperationKey base_op_key(&object->id, DEG_NODE_TYPE_TRANSFORM, base_op);
421         OperationKey local_transform_key(&object->id,
422                                          DEG_NODE_TYPE_TRANSFORM,
423                                          DEG_OPCODE_TRANSFORM_LOCAL);
424         OperationKey parent_transform_key(&object->id,
425                                           DEG_NODE_TYPE_TRANSFORM,
426                                           DEG_OPCODE_TRANSFORM_PARENT);
427         OperationKey final_transform_key(&object->id,
428                                          DEG_NODE_TYPE_TRANSFORM,
429                                          DEG_OPCODE_TRANSFORM_FINAL);
430         OperationKey ob_ubereval_key(&object->id,
431                                      DEG_NODE_TYPE_TRANSFORM,
432                                      DEG_OPCODE_TRANSFORM_OBJECT_UBEREVAL);
433         /* Parenting. */
434         if (object->parent != NULL) {
435                 /* Parent relationship. */
436                 build_object_parent(object);
437                 /* Local -> parent. */
438                 add_relation(local_transform_key,
439                              parent_transform_key,
440                              "ObLocal -> ObParent");
441         }
442         /* Modifiers. */
443         if (object->modifiers.first != NULL) {
444                 BuilderWalkUserData data;
445                 data.builder = this;
446                 modifiers_foreachObjectLink(object, modifier_walk, &data);
447         }
448         /* Constraints. */
449         if (object->constraints.first != NULL) {
450                 BuilderWalkUserData data;
451                 data.builder = this;
452                 BKE_constraints_id_loop(&object->constraints, constraint_walk, &data);
453         }
454         /* Object constraints. */
455         if (object->constraints.first != NULL) {
456                 OperationKey constraint_key(&object->id,
457                                             DEG_NODE_TYPE_TRANSFORM,
458                                             DEG_OPCODE_TRANSFORM_CONSTRAINTS);
459                 /* Constraint relations. */
460                 build_constraints(&object->id,
461                                   DEG_NODE_TYPE_TRANSFORM,
462                                   "",
463                                   &object->constraints,
464                                   NULL);
465                 /* operation order */
466                 add_relation(base_op_key, constraint_key, "ObBase-> Constraint Stack");
467                 add_relation(constraint_key, final_transform_key, "ObConstraints -> Done");
468                 // XXX
469                 add_relation(constraint_key, ob_ubereval_key, "Temp Ubereval");
470                 add_relation(ob_ubereval_key, final_transform_key, "Temp Ubereval");
471         }
472         else {
473                 /* NOTE: Keep an eye here, we skip some relations here to "streamline"
474                  * dependencies and avoid transitive relations which causes overhead.
475                  * But once we get rid of uber eval node this will need reconsideration.
476                  */
477                 if (object->rigidbody_object == NULL) {
478                         /* Rigid body will hook up another node inbetween, so skip
479                          * relation here to avoid transitive relation.
480                          */
481                         add_relation(base_op_key, ob_ubereval_key, "Temp Ubereval");
482                 }
483                 add_relation(ob_ubereval_key, final_transform_key, "Temp Ubereval");
484         }
485         /* Animation data */
486         build_animdata(&object->id);
487         // XXX: This should be hooked up by the build_animdata code
488         if (needs_animdata_node(&object->id)) {
489                 ComponentKey adt_key(&object->id, DEG_NODE_TYPE_ANIMATION);
490                 add_relation(adt_key, local_transform_key, "Object Animation");
491         }
492         /* Object data. */
493         build_object_data(object);
494         /* Particle systems. */
495         if (object->particlesystem.first != NULL) {
496                 build_particles(object);
497         }
498         /* Grease pencil. */
499         if (object->gpd != NULL) {
500                 build_gpencil(object->gpd);
501         }
502         /* Object that this is a proxy for. */
503         if (object->proxy != NULL) {
504                 object->proxy->proxy_from = object;
505                 build_object(object->proxy);
506                 /* TODO(sergey): This is an inverted relation, matches old depsgraph
507                  * behavior and need to be investigated if it still need to be inverted.
508                  */
509                 ComponentKey ob_pose_key(&object->id, DEG_NODE_TYPE_EVAL_POSE);
510                 ComponentKey proxy_pose_key(&object->proxy->id, DEG_NODE_TYPE_EVAL_POSE);
511                 add_relation(ob_pose_key, proxy_pose_key, "Proxy");
512         }
513         /* Object dupligroup. */
514         if (object->dup_group != NULL) {
515                 build_group(object, object->dup_group);
516         }
517 }
518
519 void DepsgraphRelationBuilder::build_object_data(Object *object)
520 {
521         if (object->data == NULL) {
522                 return;
523         }
524         ID *obdata_id = (ID *)object->data;
525         /* Object data animation. */
526         build_animdata(obdata_id);
527         /* type-specific data. */
528         switch (object->type) {
529                 case OB_MESH:
530                 case OB_CURVE:
531                 case OB_FONT:
532                 case OB_SURF:
533                 case OB_MBALL:
534                 case OB_LATTICE:
535                 {
536                         build_obdata_geom(object);
537                         break;
538                 }
539                 case OB_ARMATURE:
540                         if (ID_IS_LINKED(object) && object->proxy_from != NULL) {
541                                 build_proxy_rig(object);
542                         }
543                         else {
544                                 build_rig(object);
545                         }
546                         break;
547                 case OB_LAMP:
548                         build_lamp(object);
549                         break;
550                 case OB_CAMERA:
551                         build_camera(object);
552                         break;
553         }
554         Key *key = BKE_key_from_object(object);
555         if (key != NULL) {
556                 ComponentKey geometry_key((ID *)object->data, DEG_NODE_TYPE_GEOMETRY);
557                 ComponentKey key_key(&key->id, DEG_NODE_TYPE_GEOMETRY);
558                 add_relation(key_key, geometry_key, "Shapekeys");
559         }
560 }
561
562 void DepsgraphRelationBuilder::build_object_parent(Object *object)
563 {
564         /* XXX: for now, need to use the component key (not just direct to the parent op),
565          * or else the matrix doesn't get reset/
566          */
567         // XXX: @sergey - it would be good if we got that backwards flushing working
568         // when tagging for updates.
569         //OperationKey ob_key(&object->id, DEG_NODE_TYPE_TRANSFORM, DEG_OPCODE_TRANSFORM_PARENT);
570         ComponentKey ob_key(&object->id, DEG_NODE_TYPE_TRANSFORM);
571
572         /* type-specific links */
573         switch (object->partype) {
574                 case PARSKEL:  /* Armature Deform (Virtual Modifier) */
575                 {
576                         ComponentKey parent_key(&object->parent->id, DEG_NODE_TYPE_TRANSFORM);
577                         add_relation(parent_key, ob_key, "Armature Deform Parent");
578                         break;
579                 }
580
581                 case PARVERT1: /* Vertex Parent */
582                 case PARVERT3:
583                 {
584                         ComponentKey parent_key(&object->parent->id, DEG_NODE_TYPE_GEOMETRY);
585                         add_relation(parent_key, ob_key, "Vertex Parent");
586
587                         /* XXX not sure what this is for or how you could be done properly - lukas */
588                         OperationDepsNode *parent_node = find_operation_node(parent_key);
589                         if (parent_node != NULL) {
590                                 parent_node->customdata_mask |= CD_MASK_ORIGINDEX;
591                         }
592
593                         ComponentKey transform_key(&object->parent->id, DEG_NODE_TYPE_TRANSFORM);
594                         add_relation(transform_key, ob_key, "Vertex Parent TFM");
595                         break;
596                 }
597
598                 case PARBONE: /* Bone Parent */
599                 {
600                         ComponentKey parent_bone_key(&object->parent->id,
601                                                      DEG_NODE_TYPE_BONE,
602                                                      object->parsubstr);
603                         OperationKey parent_transform_key(&object->parent->id,
604                                                           DEG_NODE_TYPE_TRANSFORM,
605                                                           DEG_OPCODE_TRANSFORM_FINAL);
606                         add_relation(parent_bone_key, ob_key, "Bone Parent");
607                         add_relation(parent_transform_key, ob_key, "Armature Parent");
608                         break;
609                 }
610
611                 default:
612                 {
613                         if (object->parent->type == OB_LATTICE) {
614                                 /* Lattice Deform Parent - Virtual Modifier */
615                                 // XXX: no virtual modifiers should be left!
616                                 ComponentKey parent_key(&object->parent->id, DEG_NODE_TYPE_TRANSFORM);
617                                 ComponentKey geom_key(&object->parent->id, DEG_NODE_TYPE_GEOMETRY);
618
619                                 add_relation(parent_key, ob_key, "Lattice Deform Parent");
620                                 add_relation(geom_key, ob_key, "Lattice Deform Parent Geom");
621                         }
622                         else if (object->parent->type == OB_CURVE) {
623                                 Curve *cu = (Curve *)object->parent->data;
624
625                                 if (cu->flag & CU_PATH) {
626                                         /* Follow Path */
627                                         ComponentKey parent_key(&object->parent->id, DEG_NODE_TYPE_GEOMETRY);
628                                         add_relation(parent_key, ob_key, "Curve Follow Parent");
629
630                                         ComponentKey transform_key(&object->parent->id, DEG_NODE_TYPE_TRANSFORM);
631                                         add_relation(transform_key, ob_key, "Curve Follow TFM");
632                                 }
633                                 else {
634                                         /* Standard Parent */
635                                         ComponentKey parent_key(&object->parent->id, DEG_NODE_TYPE_TRANSFORM);
636                                         add_relation(parent_key, ob_key, "Curve Parent");
637                                 }
638                         }
639                         else {
640                                 /* Standard Parent */
641                                 ComponentKey parent_key(&object->parent->id, DEG_NODE_TYPE_TRANSFORM);
642                                 add_relation(parent_key, ob_key, "Parent");
643                         }
644                         break;
645                 }
646         }
647
648         /* exception case: parent is duplivert */
649         if ((object->type == OB_MBALL) && (object->parent->transflag & OB_DUPLIVERTS)) {
650                 //dag_add_relation(dag, node2, node, DAG_RL_DATA_DATA | DAG_RL_OB_OB, "Duplivert");
651         }
652 }
653
654 void DepsgraphRelationBuilder::build_constraints(ID *id,
655                                                  eDepsNode_Type component_type,
656                                                  const char *component_subdata,
657                                                  ListBase *constraints,
658                                                  RootPChanMap *root_map)
659 {
660         OperationKey constraint_op_key(
661                 id,
662                 component_type,
663                 component_subdata,
664                 (component_type == DEG_NODE_TYPE_BONE)
665                         ? DEG_OPCODE_BONE_CONSTRAINTS
666                         : DEG_OPCODE_TRANSFORM_CONSTRAINTS);
667         /* Add dependencies for each constraint in turn. */
668         for (bConstraint *con = (bConstraint *)constraints->first; con; con = con->next) {
669                 const bConstraintTypeInfo *cti = BKE_constraint_typeinfo_get(con);
670                 /* Invalid constraint type. */
671                 if (cti == NULL) {
672                         continue;
673                 }
674                 /* Special case for camera tracking -- it doesn't use targets to
675                  * define relations.
676                  */
677                 /* TODO: we can now represent dependencies in a much richer manner,
678                  * so review how this is done.
679                  */
680                 if (ELEM(cti->type,
681                          CONSTRAINT_TYPE_FOLLOWTRACK,
682                          CONSTRAINT_TYPE_CAMERASOLVER,
683                          CONSTRAINT_TYPE_OBJECTSOLVER))
684                 {
685                         bool depends_on_camera = false;
686                         if (cti->type == CONSTRAINT_TYPE_FOLLOWTRACK) {
687                                 bFollowTrackConstraint *data = (bFollowTrackConstraint *)con->data;
688                                 if (((data->clip) ||
689                                      (data->flag & FOLLOWTRACK_ACTIVECLIP)) && data->track[0])
690                                 {
691                                         depends_on_camera = true;
692                                 }
693                                 if (data->depth_ob) {
694                                         ComponentKey depth_transform_key(&data->depth_ob->id,
695                                                                          DEG_NODE_TYPE_TRANSFORM);
696                                         ComponentKey depth_geometry_key(&data->depth_ob->id,
697                                                                         DEG_NODE_TYPE_GEOMETRY);
698                                         add_relation(depth_transform_key, constraint_op_key, cti->name);
699                                         add_relation(depth_geometry_key, constraint_op_key, cti->name);
700                                 }
701                         }
702                         else if (cti->type == CONSTRAINT_TYPE_OBJECTSOLVER) {
703                                 depends_on_camera = true;
704                         }
705                         if (depends_on_camera && scene_->camera != NULL) {
706                                 ComponentKey camera_key(&scene_->camera->id, DEG_NODE_TYPE_TRANSFORM);
707                                 add_relation(camera_key, constraint_op_key, cti->name);
708                         }
709                         /* TODO(sergey): This is more a TimeSource -> MovieClip ->
710                          * Constraint dependency chain.
711                          */
712                         TimeSourceKey time_src_key;
713                         add_relation(time_src_key, constraint_op_key, "TimeSrc -> Animation");
714                 }
715                 else if (cti->type == CONSTRAINT_TYPE_TRANSFORM_CACHE) {
716                         /* TODO(kevin): This is more a TimeSource -> CacheFile -> Constraint
717                          * dependency chain.
718                          */
719                         TimeSourceKey time_src_key;
720                         add_relation(time_src_key, constraint_op_key, "TimeSrc -> Animation");
721                         bTransformCacheConstraint *data = (bTransformCacheConstraint *)con->data;
722                         if (data->cache_file) {
723                                 ComponentKey cache_key(&data->cache_file->id, DEG_NODE_TYPE_CACHE);
724                                 add_relation(cache_key, constraint_op_key, cti->name);
725                         }
726                 }
727                 else if (cti->get_constraint_targets) {
728                         ListBase targets = {NULL, NULL};
729                         cti->get_constraint_targets(con, &targets);
730                         LINKLIST_FOREACH (bConstraintTarget *, ct, &targets) {
731                                 if (ct->tar == NULL) {
732                                         continue;
733                                 }
734                                 if (ELEM(con->type,
735                                          CONSTRAINT_TYPE_KINEMATIC,
736                                          CONSTRAINT_TYPE_SPLINEIK))
737                                 {
738                                         /* Ignore IK constraints - these are handled separately
739                                          * (on pose level).
740                                          */
741                                 }
742                                 else if (ELEM(con->type,
743                                               CONSTRAINT_TYPE_FOLLOWPATH,
744                                               CONSTRAINT_TYPE_CLAMPTO))
745                                 {
746                                         /* These constraints require path geometry data. */
747                                         ComponentKey target_key(&ct->tar->id, DEG_NODE_TYPE_GEOMETRY);
748                                         add_relation(target_key, constraint_op_key, cti->name);
749                                         ComponentKey target_transform_key(&ct->tar->id,
750                                                                           DEG_NODE_TYPE_TRANSFORM);
751                                         add_relation(target_transform_key, constraint_op_key, cti->name);
752                                 }
753                                 else if ((ct->tar->type == OB_ARMATURE) && (ct->subtarget[0])) {
754                                         /* bone */
755                                         if (&ct->tar->id == id) {
756                                                 /* same armature  */
757                                                 eDepsOperation_Code target_key_opcode;
758                                                 /* Using "done" here breaks in-chain deps, while using
759                                                  * "ready" here breaks most production rigs instead.
760                                                  * So, we do a compromise here, and only do this when an
761                                                  * IK chain conflict may occur.
762                                                  */
763                                                 if (root_map->has_common_root(component_subdata,
764                                                                               ct->subtarget))
765                                                 {
766                                                         target_key_opcode = DEG_OPCODE_BONE_READY;
767                                                 }
768                                                 else {
769                                                         target_key_opcode = DEG_OPCODE_BONE_DONE;
770                                                 }
771                                                 OperationKey target_key(&ct->tar->id,
772                                                                         DEG_NODE_TYPE_BONE,
773                                                                         ct->subtarget,
774                                                                         target_key_opcode);
775                                                 add_relation(target_key, constraint_op_key, cti->name);
776                                         }
777                                         else {
778                                                 /* Different armature - we can safely use the result
779                                                  * of that.
780                                                  */
781                                                 OperationKey target_key(&ct->tar->id,
782                                                                         DEG_NODE_TYPE_BONE,
783                                                                         ct->subtarget,
784                                                                         DEG_OPCODE_BONE_DONE);
785                                                 add_relation(target_key, constraint_op_key, cti->name);
786                                         }
787                                 }
788                                 else if (ELEM(ct->tar->type, OB_MESH, OB_LATTICE) &&
789                                          (ct->subtarget[0]))
790                                 {
791                                         /* Vertex group. */
792                                         /* NOTE: for now, we don't need to represent vertex groups
793                                          * separately.
794                                          */
795                                         ComponentKey target_key(&ct->tar->id, DEG_NODE_TYPE_GEOMETRY);
796                                         add_relation(target_key, constraint_op_key, cti->name);
797                                         if (ct->tar->type == OB_MESH) {
798                                                 OperationDepsNode *node2 = find_operation_node(target_key);
799                                                 if (node2 != NULL) {
800                                                         node2->customdata_mask |= CD_MASK_MDEFORMVERT;
801                                                 }
802                                         }
803                                 }
804                                 else if (con->type == CONSTRAINT_TYPE_SHRINKWRAP) {
805                                         /* Constraints which requires the target object surface. */
806                                         ComponentKey target_key(&ct->tar->id, DEG_NODE_TYPE_GEOMETRY);
807                                         add_relation(target_key, constraint_op_key, cti->name);
808                                         /* NOTE: obdata eval now doesn't necessarily depend on the
809                                          * object's transform.
810                                          */
811                                         ComponentKey target_transform_key(&ct->tar->id,
812                                                                           DEG_NODE_TYPE_TRANSFORM);
813                                         add_relation(target_transform_key, constraint_op_key, cti->name);
814                                 }
815                                 else {
816                                         /* Standard object relation. */
817                                         // TODO: loc vs rot vs scale?
818                                         if (&ct->tar->id == id) {
819                                                 /* Constraint targetting own object:
820                                                  * - This case is fine IFF we're dealing with a bone
821                                                  *   constraint pointing to its own armature. In that
822                                                  *   case, it's just transform -> bone.
823                                                  * - If however it is a real self targetting case, just
824                                                  *   make it depend on the previous constraint (or the
825                                                  *   pre-constraint state).
826                                                  */
827                                                 if ((ct->tar->type == OB_ARMATURE) &&
828                                                     (component_type == DEG_NODE_TYPE_BONE))
829                                                 {
830                                                         OperationKey target_key(&ct->tar->id,
831                                                                                 DEG_NODE_TYPE_TRANSFORM,
832                                                                                 DEG_OPCODE_TRANSFORM_FINAL);
833                                                         add_relation(target_key, constraint_op_key, cti->name);
834                                                 }
835                                                 else {
836                                                         OperationKey target_key(&ct->tar->id,
837                                                                                 DEG_NODE_TYPE_TRANSFORM,
838                                                                                 DEG_OPCODE_TRANSFORM_LOCAL);
839                                                         add_relation(target_key, constraint_op_key, cti->name);
840                                                 }
841                                         }
842                                         else {
843                                                 /* Normal object dependency. */
844                                                 OperationKey target_key(&ct->tar->id,
845                                                                         DEG_NODE_TYPE_TRANSFORM,
846                                                                         DEG_OPCODE_TRANSFORM_FINAL);
847                                                 add_relation(target_key, constraint_op_key, cti->name);
848                                         }
849                                 }
850                                 /* Constraints which needs world's matrix for transform.
851                                  * TODO(sergey): More constraints here?
852                                  */
853                                 if (ELEM(con->type,
854                                          CONSTRAINT_TYPE_ROTLIKE,
855                                          CONSTRAINT_TYPE_SIZELIKE,
856                                          CONSTRAINT_TYPE_LOCLIKE,
857                                          CONSTRAINT_TYPE_TRANSLIKE))
858                                 {
859                                         /* TODO(sergey): Add used space check. */
860                                         ComponentKey target_transform_key(&ct->tar->id,
861                                                                           DEG_NODE_TYPE_TRANSFORM);
862                                         add_relation(target_transform_key, constraint_op_key, cti->name);
863                                 }
864                         }
865                         if (cti->flush_constraint_targets) {
866                                 cti->flush_constraint_targets(con, &targets, 1);
867                         }
868                 }
869         }
870 }
871
872 void DepsgraphRelationBuilder::build_animdata(ID *id)
873 {
874         /* Animation curves and NLA. */
875         build_animdata_curves(id);
876         /* Drivers. */
877         build_animdata_drievrs(id);
878 }
879
880 void DepsgraphRelationBuilder::build_animdata_curves(ID *id)
881 {
882         AnimData *adt = BKE_animdata_from_id(id);
883         if (adt == NULL) {
884                 return;
885         }
886         ComponentKey adt_key(id, DEG_NODE_TYPE_ANIMATION);
887         if (adt->action == NULL && adt->nla_tracks.first == NULL) {
888                 return;
889         }
890         /* Wire up dependency to time source. */
891         TimeSourceKey time_src_key;
892         add_relation(time_src_key, adt_key, "TimeSrc -> Animation");
893 }
894
895 void DepsgraphRelationBuilder::build_animdata_drievrs(ID *id)
896 {
897         AnimData *adt = BKE_animdata_from_id(id);
898         if (adt == NULL) {
899                 return;
900         }
901         ComponentKey adt_key(id, DEG_NODE_TYPE_ANIMATION);
902         LINKLIST_FOREACH (FCurve *, fcu, &adt->drivers) {
903                 OperationKey driver_key(id,
904                                         DEG_NODE_TYPE_PARAMETERS,
905                                         DEG_OPCODE_DRIVER,
906                                         fcu->rna_path ? fcu->rna_path : "",
907                                         fcu->array_index);
908
909                 /* create the driver's relations to targets */
910                 build_driver(id, fcu);
911
912                 /* Special case for array drivers: we can not multithread them because
913                  * of the way how they work internally: animation system will write the
914                  * whole array back to RNA even when changing individual array value.
915                  *
916                  * Some tricky things here:
917                  * - array_index is -1 for single channel drivers, meaning we only have
918                  *   to do some magic when array_index is not -1.
919                  * - We do relation from next array index to a previous one, so we don't
920                  *   have to deal with array index 0.
921                  *
922                  * TODO(sergey): Avoid liner lookup somehow.
923                  */
924                 if (fcu->array_index > 0) {
925                         FCurve *fcu_prev = NULL;
926                         LINKLIST_FOREACH (FCurve *, fcu_candidate, &adt->drivers) {
927                                 /* Writing to different RNA paths is  */
928                                 const char *rna_path = fcu->rna_path ? fcu->rna_path : "";
929                                 if (!STREQ(fcu_candidate->rna_path, rna_path)) {
930                                         continue;
931                                 }
932                                 /* We only do relation from previous fcurve to previous one. */
933                                 if (fcu_candidate->array_index >= fcu->array_index) {
934                                         continue;
935                                 }
936                                 /* Choose fcurve with highest possible array index. */
937                                 if (fcu_prev == NULL ||
938                                     fcu_candidate->array_index > fcu_prev->array_index)
939                                 {
940                                         fcu_prev = fcu_candidate;
941                                 }
942                         }
943                         if (fcu_prev != NULL) {
944                                 OperationKey prev_driver_key(id,
945                                                              DEG_NODE_TYPE_PARAMETERS,
946                                                              DEG_OPCODE_DRIVER,
947                                                              fcu_prev->rna_path ? fcu_prev->rna_path : "",
948                                                              fcu_prev->array_index);
949                                 OperationKey driver_key(id,
950                                                         DEG_NODE_TYPE_PARAMETERS,
951                                                         DEG_OPCODE_DRIVER,
952                                                         fcu->rna_path ? fcu->rna_path : "",
953                                                         fcu->array_index);
954                                 add_relation(prev_driver_key, driver_key, "Driver Order");
955                         }
956                 }
957
958                 /* prevent driver from occurring before own animation... */
959                 if (adt->action || adt->nla_tracks.first) {
960                         add_relation(adt_key, driver_key, "AnimData Before Drivers");
961                 }
962         }
963 }
964
965 void DepsgraphRelationBuilder::build_driver(ID *id, FCurve *fcu)
966 {
967         ChannelDriver *driver = fcu->driver;
968         OperationKey driver_key(id,
969                                 DEG_NODE_TYPE_PARAMETERS,
970                                 DEG_OPCODE_DRIVER,
971                                 fcu->rna_path ? fcu->rna_path : "",
972                                 fcu->array_index);
973         /* Driver -> data components (for interleaved evaluation
974          * bones/constraints/modifiers).
975          */
976         build_driver_data(id, fcu);
977         /* Loop over variables to get the target relationships. */
978         build_driver_variables(id, fcu);
979         /* It's quite tricky to detect if the driver actually depends on time or
980          * not, so for now we'll be quite conservative here about optimization and
981          * consider all python drivers to be depending on time.
982          */
983         if ((driver->type == DRIVER_TYPE_PYTHON) &&
984             python_driver_depends_on_time(driver))
985         {
986                 TimeSourceKey time_src_key;
987                 add_relation(time_src_key, driver_key, "TimeSrc -> Driver");
988         }
989 }
990
991 void DepsgraphRelationBuilder::build_driver_data(ID *id, FCurve *fcu)
992 {
993         OperationKey driver_key(id,
994                                 DEG_NODE_TYPE_PARAMETERS,
995                                 DEG_OPCODE_DRIVER,
996                                 fcu->rna_path ? fcu->rna_path : "",
997                                 fcu->array_index);
998         const char *rna_path = fcu->rna_path ? fcu->rna_path : "";
999         const RNAPathKey self_key(id, rna_path);
1000         if (GS(id->name) == ID_AR && strstr(rna_path, "bones[")) {
1001                 /* Drivers on armature-level bone settings (i.e. bbone stuff),
1002                  * which will affect the evaluation of corresponding pose bones.
1003                  */
1004                 IDDepsNode *arm_node = graph_->find_id_node(id);
1005                 char *bone_name = BLI_str_quoted_substrN(rna_path, "bones[");
1006                 if (arm_node && bone_name) {
1007                         /* Find objects which use this, and make their eval callbacks
1008                          * depend on this.
1009                          */
1010                         foreach (DepsRelation *rel, arm_node->outlinks) {
1011                                 IDDepsNode *to_node = (IDDepsNode *)rel->to;
1012                                 /* We only care about objects with pose data which use this. */
1013                                 if (GS(to_node->id->name) == ID_OB) {
1014                                         Object *object = (Object *)to_node->id;
1015                                         /* NOTE: object->pose may be NULL. */
1016                                         bPoseChannel *pchan = BKE_pose_channel_find_name(
1017                                                 object->pose, bone_name);
1018                                         if (pchan != NULL) {
1019                                                 OperationKey bone_key(&object->id,
1020                                                                       DEG_NODE_TYPE_BONE,
1021                                                                       pchan->name,
1022                                                                       DEG_OPCODE_BONE_LOCAL);
1023                                                 add_relation(driver_key,
1024                                                              bone_key,
1025                                                              "Arm Bone -> Driver -> Bone");
1026                                         }
1027                                 }
1028                         }
1029                         /* Free temp data. */
1030                         MEM_freeN(bone_name);
1031                         bone_name = NULL;
1032                 }
1033                 else {
1034                         fprintf(stderr,
1035                                 "Couldn't find armature bone name for driver path - '%s'\n",
1036                                 rna_path);
1037                 }
1038         }
1039         else {
1040                 RNAPathKey target_key(id, rna_path);
1041                 add_relation(driver_key, target_key, "Driver -> Target");
1042         }
1043 }
1044
1045 void DepsgraphRelationBuilder::build_driver_variables(ID *id, FCurve *fcu)
1046 {
1047         ChannelDriver *driver = fcu->driver;
1048         OperationKey driver_key(id,
1049                                 DEG_NODE_TYPE_PARAMETERS,
1050                                 DEG_OPCODE_DRIVER,
1051                                 fcu->rna_path ? fcu->rna_path : "",
1052                                 fcu->array_index);
1053         const char *rna_path = fcu->rna_path ? fcu->rna_path : "";
1054         const RNAPathKey self_key(id, rna_path);
1055
1056         LINKLIST_FOREACH (DriverVar *, dvar, &driver->variables) {
1057                 /* Only used targets. */
1058                 DRIVER_TARGETS_USED_LOOPER(dvar)
1059                 {
1060                         if (dtar->id == NULL) {
1061                                 continue;
1062                         }
1063                         /* Special handling for directly-named bones. */
1064                         if ((dtar->flag & DTAR_FLAG_STRUCT_REF) &&
1065                             (((Object *)dtar->id)->type == OB_ARMATURE) &&
1066                             (dtar->pchan_name[0]))
1067                         {
1068                                 Object *object = (Object *)dtar->id;
1069                                 bPoseChannel *target_pchan =
1070                                         BKE_pose_channel_find_name(object->pose,
1071                                                                    dtar->pchan_name);
1072                                 if (target_pchan == NULL) {
1073                                         continue;
1074                                 }
1075                                 OperationKey variable_key(dtar->id,
1076                                                         DEG_NODE_TYPE_BONE,
1077                                                         target_pchan->name,
1078                                                         DEG_OPCODE_BONE_DONE);
1079                                 if (is_same_bone_dependency(variable_key, self_key)) {
1080                                         continue;
1081                                 }
1082                                 add_relation(variable_key, driver_key, "Bone Target -> Driver");
1083                         }
1084                         else if (dtar->flag & DTAR_FLAG_STRUCT_REF) {
1085                                 /* Get node associated with the object's transforms. */
1086                                 if (dtar->id == id) {
1087                                         /* Ignore input dependency if we're driving properties of
1088                                          * the same ID, otherwise we'll be ending up in a cyclic
1089                                          * dependency here.
1090                                          */
1091                                         continue;
1092                                 }
1093                                 OperationKey target_key(dtar->id,
1094                                                         DEG_NODE_TYPE_TRANSFORM,
1095                                                         DEG_OPCODE_TRANSFORM_FINAL);
1096                                 add_relation(target_key, driver_key, "Target -> Driver");
1097                         }
1098                         else if (dtar->rna_path) {
1099                                 RNAPathKey variable_key(dtar->id, dtar->rna_path);
1100                                 if (RNA_pointer_is_null(&variable_key.ptr)) {
1101                                         continue;
1102                                 }
1103                                 if (is_same_bone_dependency(variable_key, self_key)) {
1104                                         continue;
1105                                 }
1106                                 add_relation(variable_key, driver_key, "RNA Bone -> Driver");
1107                         }
1108                         else {
1109                                 if (dtar->id == id) {
1110                                         /* Ignore input dependency if we're driving properties of
1111                                          * the same ID, otherwise we'll be ending up in a cyclic
1112                                          * dependency here.
1113                                          */
1114                                         continue;
1115                                 }
1116                                 /* Resolve path to get node. */
1117                                 RNAPathKey target_key(dtar->id,
1118                                                       dtar->rna_path ? dtar->rna_path : "");
1119                                 add_relation(target_key, driver_key, "RNA Target -> Driver");
1120                         }
1121                 }
1122                 DRIVER_TARGETS_LOOPER_END
1123         }
1124 }
1125
1126 void DepsgraphRelationBuilder::build_world(World *world)
1127 {
1128         ID *world_id = &world->id;
1129         if (world_id->tag & LIB_TAG_DOIT) {
1130                 return;
1131         }
1132         world_id->tag |= LIB_TAG_DOIT;
1133
1134         build_animdata(world_id);
1135
1136         /* TODO: other settings? */
1137
1138         /* textures */
1139         build_texture_stack(world->mtex);
1140
1141         /* world's nodetree */
1142         if (world->nodetree != NULL) {
1143                 build_nodetree(world->nodetree);
1144                 ComponentKey ntree_key(&world->nodetree->id, DEG_NODE_TYPE_PARAMETERS);
1145                 ComponentKey world_key(world_id, DEG_NODE_TYPE_PARAMETERS);
1146                 add_relation(ntree_key, world_key, "NTree->World Parameters");
1147         }
1148 }
1149
1150 void DepsgraphRelationBuilder::build_rigidbody(Scene *scene)
1151 {
1152         RigidBodyWorld *rbw = scene->rigidbody_world;
1153
1154         OperationKey init_key(&scene->id, DEG_NODE_TYPE_TRANSFORM, DEG_OPCODE_RIGIDBODY_REBUILD);
1155         OperationKey sim_key(&scene->id, DEG_NODE_TYPE_TRANSFORM, DEG_OPCODE_RIGIDBODY_SIM);
1156
1157         /* rel between the two sim-nodes */
1158         add_relation(init_key, sim_key, "Rigidbody [Init -> SimStep]");
1159
1160         /* set up dependencies between these operations and other builtin nodes --------------- */
1161
1162         /* time dependency */
1163         TimeSourceKey time_src_key;
1164         add_relation(time_src_key, init_key, "TimeSrc -> Rigidbody Reset/Rebuild (Optional)");
1165
1166         /* objects - simulation participants */
1167         if (rbw->group) {
1168                 LINKLIST_FOREACH (GroupObject *, go, &rbw->group->gobject) {
1169                         Object *object = go->ob;
1170                         if (object == NULL || object->type != OB_MESH) {
1171                                 continue;
1172                         }
1173
1174                         /* hook up evaluation order...
1175                          * 1) flushing rigidbody results follows base transforms being applied
1176                          * 2) rigidbody flushing can only be performed after simulation has been run
1177                          *
1178                          * 3) simulation needs to know base transforms to figure out what to do
1179                          *    XXX: there's probably a difference between passive and active
1180                          *         - passive don't change, so may need to know full transform...
1181                          */
1182                         OperationKey rbo_key(&object->id, DEG_NODE_TYPE_TRANSFORM, DEG_OPCODE_RIGIDBODY_TRANSFORM_COPY);
1183
1184                         eDepsOperation_Code trans_opcode = object->parent ? DEG_OPCODE_TRANSFORM_PARENT : DEG_OPCODE_TRANSFORM_LOCAL;
1185                         OperationKey trans_op(&object->id, DEG_NODE_TYPE_TRANSFORM, trans_opcode);
1186
1187                         add_relation(sim_key, rbo_key, "Rigidbody Sim Eval -> RBO Sync");
1188
1189                         /* if constraints exist, those depend on the result of the rigidbody sim
1190                          * - This allows constraints to modify the result of the sim (i.e. clamping)
1191                          *   while still allowing the sim to depend on some changes to the objects.
1192                          *   Also, since constraints are hooked up to the final nodes, this link
1193                          *   means that we can also fit in there too...
1194                          * - Later, it might be good to include a constraint in the stack allowing us
1195                          *   to control whether rigidbody eval gets interleaved into the constraint stack
1196                          */
1197                         if (object->constraints.first) {
1198                                 OperationKey constraint_key(&object->id,
1199                                                             DEG_NODE_TYPE_TRANSFORM,
1200                                                             DEG_OPCODE_TRANSFORM_CONSTRAINTS);
1201                                 add_relation(rbo_key, constraint_key, "RBO Sync -> Ob Constraints");
1202                         }
1203                         else {
1204                                 /* Final object transform depends on rigidbody.
1205                                  *
1206                                  * NOTE: Currently we consider final here an ubereval node.
1207                                  * If it is gone we'll need to reconsider relation here.
1208                                  */
1209                                 OperationKey uber_key(&object->id,
1210                                                       DEG_NODE_TYPE_TRANSFORM,
1211                                                       DEG_OPCODE_TRANSFORM_OBJECT_UBEREVAL);
1212                                 add_relation(rbo_key, uber_key, "RBO Sync -> Uber (Temp)");
1213                         }
1214
1215                         /* Needed to get correct base values. */
1216                         add_relation(trans_op, sim_key, "Base Ob Transform -> Rigidbody Sim Eval");
1217                 }
1218         }
1219
1220         /* constraints */
1221         if (rbw->constraints) {
1222                 LINKLIST_FOREACH (GroupObject *, go, &rbw->constraints->gobject) {
1223                         Object *object = go->ob;
1224                         if (object == NULL || !object->rigidbody_constraint) {
1225                                 continue;
1226                         }
1227
1228                         RigidBodyCon *rbc = object->rigidbody_constraint;
1229
1230                         /* final result of the constraint object's transform controls how the
1231                          * constraint affects the physics sim for these objects
1232                          */
1233                         ComponentKey trans_key(&object->id, DEG_NODE_TYPE_TRANSFORM);
1234                         OperationKey ob1_key(&rbc->ob1->id, DEG_NODE_TYPE_TRANSFORM, DEG_OPCODE_RIGIDBODY_TRANSFORM_COPY);
1235                         OperationKey ob2_key(&rbc->ob2->id, DEG_NODE_TYPE_TRANSFORM, DEG_OPCODE_RIGIDBODY_TRANSFORM_COPY);
1236
1237                         /* - constrained-objects sync depends on the constraint-holder */
1238                         add_relation(trans_key, ob1_key, "RigidBodyConstraint -> RBC.Object_1");
1239                         add_relation(trans_key, ob2_key, "RigidBodyConstraint -> RBC.Object_2");
1240
1241                         /* - ensure that sim depends on this constraint's transform */
1242                         add_relation(trans_key, sim_key, "RigidBodyConstraint Transform -> RB Simulation");
1243                 }
1244         }
1245 }
1246
1247 void DepsgraphRelationBuilder::build_particles(Object *object)
1248 {
1249         TimeSourceKey time_src_key;
1250         OperationKey obdata_ubereval_key(&object->id,
1251                                          DEG_NODE_TYPE_GEOMETRY,
1252                                          DEG_OPCODE_GEOMETRY_UBEREVAL);
1253         OperationKey eval_init_key(&object->id,
1254                                    DEG_NODE_TYPE_EVAL_PARTICLES,
1255                                    DEG_OPCODE_PARTICLE_SYSTEM_EVAL_INIT);
1256         if (object_particles_depends_on_time(object)) {
1257                 add_relation(time_src_key, eval_init_key, "TimeSrc -> PSys");
1258         }
1259
1260         /* particle systems */
1261         LINKLIST_FOREACH (ParticleSystem *, psys, &object->particlesystem) {
1262                 ParticleSettings *part = psys->part;
1263
1264                 /* particle settings */
1265                 build_animdata(&part->id);
1266
1267                 /* this particle system */
1268                 OperationKey psys_key(&object->id, DEG_NODE_TYPE_EVAL_PARTICLES, DEG_OPCODE_PARTICLE_SYSTEM_EVAL, psys->name);
1269
1270                 /* XXX: if particle system is later re-enabled, we must do full rebuild? */
1271                 if (!psys_check_enabled(object, psys, G.is_rendering))
1272                         continue;
1273
1274                 add_relation(eval_init_key, psys_key, "Init -> PSys");
1275
1276                 /* TODO(sergey): Currently particle update is just a placeholder,
1277                  * hook it to the ubereval node so particle system is getting updated
1278                  * on playback.
1279                  */
1280                 add_relation(psys_key, obdata_ubereval_key, "PSys -> UberEval");
1281
1282                 /* collisions */
1283                 if (part->type != PART_HAIR) {
1284                         add_collision_relations(psys_key, scene_, object, part->collision_group, object->lay, true, "Particle Collision");
1285                 }
1286                 else if ((psys->flag & PSYS_HAIR_DYNAMICS) && psys->clmd && psys->clmd->coll_parms) {
1287                         add_collision_relations(psys_key, scene_, object, psys->clmd->coll_parms->group, object->lay | scene_->lay, true, "Hair Collision");
1288                 }
1289
1290                 /* effectors */
1291                 add_forcefield_relations(psys_key, scene_, object, psys, part->effector_weights, part->type == PART_HAIR, "Particle Field");
1292
1293                 /* boids */
1294                 if (part->boids) {
1295                         LINKLIST_FOREACH (BoidState *, state, &part->boids->states) {
1296                                 LINKLIST_FOREACH (BoidRule *, rule, &state->rules) {
1297                                         Object *ruleob = NULL;
1298                                         if (rule->type == eBoidRuleType_Avoid)
1299                                                 ruleob = ((BoidRuleGoalAvoid *)rule)->ob;
1300                                         else if (rule->type == eBoidRuleType_FollowLeader)
1301                                                 ruleob = ((BoidRuleFollowLeader *)rule)->ob;
1302
1303                                         if (ruleob) {
1304                                                 ComponentKey ruleob_key(&ruleob->id, DEG_NODE_TYPE_TRANSFORM);
1305                                                 add_relation(ruleob_key, psys_key, "Boid Rule");
1306                                         }
1307                                 }
1308                         }
1309                 }
1310
1311                 if (part->ren_as == PART_DRAW_OB && part->dup_ob) {
1312                         ComponentKey dup_ob_key(&part->dup_ob->id, DEG_NODE_TYPE_TRANSFORM);
1313                         add_relation(dup_ob_key, psys_key, "Particle Object Visualization");
1314                 }
1315         }
1316
1317         /* Particle depends on the object transform, so that channel is to be ready
1318          * first.
1319          *
1320          * TODO(sergey): This relation should be altered once real granular update
1321          * is implemented.
1322          */
1323         ComponentKey transform_key(&object->id, DEG_NODE_TYPE_TRANSFORM);
1324         add_relation(transform_key, obdata_ubereval_key, "Partcile Eval");
1325
1326         /* pointcache */
1327         // TODO...
1328 }
1329
1330 void DepsgraphRelationBuilder::build_cloth(Object *object,
1331                                            ModifierData * /*md*/)
1332 {
1333         OperationKey cache_key(&object->id,
1334                                DEG_NODE_TYPE_CACHE,
1335                                DEG_OPCODE_GEOMETRY_CLOTH_MODIFIER);
1336         /* Cache component affects on modifier. */
1337         OperationKey modifier_key(&object->id,
1338                                   DEG_NODE_TYPE_GEOMETRY,
1339                                   DEG_OPCODE_GEOMETRY_UBEREVAL);
1340         add_relation(cache_key, modifier_key, "Cloth Cache -> Cloth");
1341 }
1342
1343 /* Shapekeys */
1344 void DepsgraphRelationBuilder::build_shapekeys(ID *obdata, Key *key)
1345 {
1346         ComponentKey obdata_key(obdata, DEG_NODE_TYPE_GEOMETRY);
1347
1348         /* attach animdata to geometry */
1349         build_animdata(&key->id);
1350
1351         if (key->adt) {
1352                 // TODO: this should really be handled in build_animdata, since many of these cases will need it
1353                 if (key->adt->action || key->adt->nla_tracks.first) {
1354                         ComponentKey adt_key(&key->id, DEG_NODE_TYPE_ANIMATION);
1355                         add_relation(adt_key, obdata_key, "Animation");
1356                 }
1357
1358                 /* NOTE: individual shapekey drivers are handled above already */
1359         }
1360
1361         /* attach to geometry */
1362         // XXX: aren't shapekeys now done as a pseudo-modifier on object?
1363         //ComponentKey key_key(&key->id, DEG_NODE_TYPE_GEOMETRY); // FIXME: this doesn't exist
1364         //add_relation(key_key, obdata_key, "Shapekeys");
1365 }
1366
1367 /**
1368  * ObData Geometry Evaluation
1369  * ==========================
1370  *
1371  * The evaluation of geometry on objects is as follows:
1372  * - The actual evaluated of the derived geometry (e.g. DerivedMesh, DispList, etc.)
1373  *   occurs in the Geometry component of the object which references this. This includes
1374  *   modifiers, and the temporary "ubereval" for geometry.
1375  * - Therefore, each user of a piece of shared geometry data ends up evaluating its own
1376  *   version of the stuff, complete with whatever modifiers it may use.
1377  *
1378  * - The datablocks for the geometry data - "obdata" (e.g. ID_ME, ID_CU, ID_LT, etc.) are used for
1379  *     1) calculating the bounding boxes of the geometry data,
1380  *     2) aggregating inward links from other objects (e.g. for text on curve, etc.)
1381  *        and also for the links coming from the shapekey datablocks
1382  * - Animation/Drivers affecting the parameters of the geometry are made to trigger
1383  *   updates on the obdata geometry component, which then trigger downstream
1384  *   re-evaluation of the individual instances of this geometry.
1385  */
1386 // TODO: Materials and lighting should probably get their own component, instead of being lumped under geometry?
1387 void DepsgraphRelationBuilder::build_obdata_geom(Object *object)
1388 {
1389         ID *obdata = (ID *)object->data;
1390
1391         /* Init operation of object-level geometry evaluation. */
1392         OperationKey geom_init_key(&object->id, DEG_NODE_TYPE_GEOMETRY, DEG_OPCODE_PLACEHOLDER, "Eval Init");
1393
1394         /* get nodes for result of obdata's evaluation, and geometry evaluation on object */
1395         ComponentKey obdata_geom_key(obdata, DEG_NODE_TYPE_GEOMETRY);
1396         ComponentKey geom_key(&object->id, DEG_NODE_TYPE_GEOMETRY);
1397
1398         /* link components to each other */
1399         add_relation(obdata_geom_key, geom_key, "Object Geometry Base Data");
1400
1401         /* Modifiers */
1402         if (object->modifiers.first != NULL) {
1403                 OperationKey obdata_ubereval_key(&object->id,
1404                                                  DEG_NODE_TYPE_GEOMETRY,
1405                                                  DEG_OPCODE_GEOMETRY_UBEREVAL);
1406
1407                 LINKLIST_FOREACH (ModifierData *, md, &object->modifiers) {
1408                         const ModifierTypeInfo *mti = modifierType_getInfo((ModifierType)md->type);
1409
1410                         if (mti->updateDepsgraph) {
1411                                 DepsNodeHandle handle = create_node_handle(obdata_ubereval_key);
1412                                 mti->updateDepsgraph(
1413                                         md,
1414                                         bmain_,
1415                                         scene_,
1416                                         object,
1417                                         reinterpret_cast< ::DepsNodeHandle* >(&handle));
1418                         }
1419
1420                         if (BKE_object_modifier_use_time(object, md)) {
1421                                 TimeSourceKey time_src_key;
1422                                 add_relation(time_src_key, obdata_ubereval_key, "Time Source");
1423
1424                                 /* Hacky fix for T45633 (Animated modifiers aren't updated)
1425                                  *
1426                                  * This check works because BKE_object_modifier_use_time() tests
1427                                  * for either the modifier needing time, or that it is animated.
1428                                  */
1429                                 /* XXX: Remove this hack when these links are added as part of build_animdata() instead */
1430                                 if (modifier_dependsOnTime(md) == false && needs_animdata_node(&object->id)) {
1431                                         ComponentKey animation_key(&object->id, DEG_NODE_TYPE_ANIMATION);
1432                                         add_relation(animation_key, obdata_ubereval_key, "Modifier Animation");
1433                                 }
1434                         }
1435
1436                         if (md->type == eModifierType_Cloth) {
1437                                 build_cloth(object, md);
1438                         }
1439                 }
1440         }
1441
1442         /* materials */
1443         if (object->totcol) {
1444                 for (int a = 1; a <= object->totcol; a++) {
1445                         Material *ma = give_current_material(object, a);
1446                         if (ma != NULL) {
1447                                 build_material(ma);
1448                         }
1449                 }
1450         }
1451
1452         /* geometry collision */
1453         if (ELEM(object->type, OB_MESH, OB_CURVE, OB_LATTICE)) {
1454                 // add geometry collider relations
1455         }
1456
1457         /* Make sure uber update is the last in the dependencies.
1458          *
1459          * TODO(sergey): Get rid of this node.
1460          */
1461         if (object->type != OB_ARMATURE) {
1462                 /* Armatures does no longer require uber node. */
1463                 OperationKey obdata_ubereval_key(&object->id, DEG_NODE_TYPE_GEOMETRY, DEG_OPCODE_GEOMETRY_UBEREVAL);
1464                 add_relation(geom_init_key, obdata_ubereval_key, "Object Geometry UberEval");
1465         }
1466
1467         if (obdata->tag & LIB_TAG_DOIT) {
1468                 return;
1469         }
1470         obdata->tag |= LIB_TAG_DOIT;
1471
1472         /* Link object data evaluation node to exit operation. */
1473         OperationKey obdata_geom_eval_key(obdata, DEG_NODE_TYPE_GEOMETRY, DEG_OPCODE_PLACEHOLDER, "Geometry Eval");
1474         OperationKey obdata_geom_done_key(obdata, DEG_NODE_TYPE_GEOMETRY, DEG_OPCODE_PLACEHOLDER, "Eval Done");
1475         add_relation(obdata_geom_eval_key, obdata_geom_done_key, "ObData Geom Eval Done");
1476
1477         /* type-specific node/links */
1478         switch (object->type) {
1479                 case OB_MESH:
1480                         /* NOTE: This is compatibility code to support particle systems
1481                          *
1482                          * for viewport being properly rendered in final render mode.
1483                          * This relation is similar to what dag_object_time_update_flags()
1484                          * was doing for mesh objects with particle system.
1485                          *
1486                          * Ideally we need to get rid of this relation.
1487                          */
1488                         if (object_particles_depends_on_time(object)) {
1489                                 TimeSourceKey time_key;
1490                                 OperationKey obdata_ubereval_key(&object->id,
1491                                                                  DEG_NODE_TYPE_GEOMETRY,
1492                                                                  DEG_OPCODE_GEOMETRY_UBEREVAL);
1493                                 add_relation(time_key, obdata_ubereval_key, "Legacy particle time");
1494                         }
1495                         break;
1496
1497                 case OB_MBALL:
1498                 {
1499                         Object *mom = BKE_mball_basis_find(scene_, object);
1500                         ComponentKey mom_geom_key(&mom->id, DEG_NODE_TYPE_GEOMETRY);
1501                         /* motherball - mom depends on children! */
1502                         if (mom == object) {
1503                                 ComponentKey mom_transform_key(&mom->id,
1504                                                                DEG_NODE_TYPE_TRANSFORM);
1505                                 add_relation(mom_transform_key,
1506                                              mom_geom_key,
1507                                              "Metaball Motherball Transform -> Geometry");
1508                         }
1509                         else {
1510                                 ComponentKey transform_key(&object->id, DEG_NODE_TYPE_TRANSFORM);
1511                                 add_relation(geom_key, mom_geom_key, "Metaball Motherball");
1512                                 add_relation(transform_key, mom_geom_key, "Metaball Motherball");
1513                         }
1514                         break;
1515                 }
1516
1517                 case OB_CURVE:
1518                 case OB_FONT:
1519                 {
1520                         Curve *cu = (Curve *)obdata;
1521
1522                         /* curve's dependencies */
1523                         // XXX: these needs geom data, but where is geom stored?
1524                         if (cu->bevobj) {
1525                                 ComponentKey bevob_key(&cu->bevobj->id, DEG_NODE_TYPE_GEOMETRY);
1526                                 build_object(cu->bevobj);
1527                                 add_relation(bevob_key, geom_key, "Curve Bevel");
1528                         }
1529                         if (cu->taperobj) {
1530                                 ComponentKey taperob_key(&cu->taperobj->id, DEG_NODE_TYPE_GEOMETRY);
1531                                 build_object(cu->taperobj);
1532                                 add_relation(taperob_key, geom_key, "Curve Taper");
1533                         }
1534                         if (object->type == OB_FONT) {
1535                                 if (cu->textoncurve) {
1536                                         ComponentKey textoncurve_key(&cu->textoncurve->id, DEG_NODE_TYPE_GEOMETRY);
1537                                         build_object(cu->textoncurve);
1538                                         add_relation(textoncurve_key, geom_key, "Text on Curve");
1539                                 }
1540                         }
1541                         break;
1542                 }
1543
1544                 case OB_SURF: /* Nurbs Surface */
1545                 {
1546                         break;
1547                 }
1548
1549                 case OB_LATTICE: /* Lattice */
1550                 {
1551                         break;
1552                 }
1553         }
1554
1555         /* ShapeKeys */
1556         Key *key = BKE_key_from_object(object);
1557         if (key) {
1558                 build_shapekeys(obdata, key);
1559         }
1560
1561         if (needs_animdata_node(obdata)) {
1562                 ComponentKey animation_key(obdata, DEG_NODE_TYPE_ANIMATION);
1563                 ComponentKey parameters_key(obdata, DEG_NODE_TYPE_PARAMETERS);
1564                 add_relation(animation_key, parameters_key, "Geom Parameters");
1565                 /* Evaluation usually depends on animation.
1566                  * TODO(sergey): Need to re-hook it after granular update is implemented..
1567                  */
1568                 add_relation(animation_key, obdata_geom_eval_key, "Animation");
1569         }
1570 }
1571
1572 /* Cameras */
1573 // TODO: Link scene-camera links in somehow...
1574 void DepsgraphRelationBuilder::build_camera(Object *object)
1575 {
1576         Camera *cam = (Camera *)object->data;
1577         ID *camera_id = &cam->id;
1578         if (camera_id->tag & LIB_TAG_DOIT) {
1579                 return;
1580         }
1581         camera_id->tag |= LIB_TAG_DOIT;
1582
1583         ComponentKey parameters_key(camera_id, DEG_NODE_TYPE_PARAMETERS);
1584
1585         if (needs_animdata_node(camera_id)) {
1586                 ComponentKey animation_key(camera_id, DEG_NODE_TYPE_ANIMATION);
1587                 add_relation(animation_key, parameters_key, "Camera Parameters");
1588         }
1589
1590         /* DOF */
1591         if (cam->dof_ob) {
1592                 ComponentKey ob_param_key(&object->id, DEG_NODE_TYPE_PARAMETERS);
1593                 ComponentKey dof_ob_key(&cam->dof_ob->id, DEG_NODE_TYPE_TRANSFORM);
1594                 add_relation(dof_ob_key, ob_param_key, "Camera DOF");
1595         }
1596 }
1597
1598 /* Lamps */
1599 void DepsgraphRelationBuilder::build_lamp(Object *object)
1600 {
1601         Lamp *la = (Lamp *)object->data;
1602         ID *lamp_id = &la->id;
1603         if (lamp_id->tag & LIB_TAG_DOIT) {
1604                 return;
1605         }
1606         lamp_id->tag |= LIB_TAG_DOIT;
1607
1608         ComponentKey parameters_key(lamp_id, DEG_NODE_TYPE_PARAMETERS);
1609
1610         if (needs_animdata_node(lamp_id)) {
1611                 ComponentKey animation_key(lamp_id, DEG_NODE_TYPE_ANIMATION);
1612                 add_relation(animation_key, parameters_key, "Lamp Parameters");
1613         }
1614
1615         /* lamp's nodetree */
1616         if (la->nodetree) {
1617                 build_nodetree(la->nodetree);
1618                 ComponentKey nodetree_key(&la->nodetree->id, DEG_NODE_TYPE_PARAMETERS);
1619                 add_relation(nodetree_key, parameters_key, "NTree->Lamp Parameters");
1620         }
1621
1622         /* textures */
1623         build_texture_stack(la->mtex);
1624 }
1625
1626 void DepsgraphRelationBuilder::build_nodetree(bNodeTree *ntree)
1627 {
1628         if (!ntree)
1629                 return;
1630
1631         ID *ntree_id = &ntree->id;
1632
1633         build_animdata(ntree_id);
1634
1635         OperationKey parameters_key(ntree_id,
1636                                     DEG_NODE_TYPE_PARAMETERS,
1637                                     DEG_OPCODE_PARAMETERS_EVAL);
1638
1639         /* nodetree's nodes... */
1640         LINKLIST_FOREACH (bNode *, bnode, &ntree->nodes) {
1641                 ID *id = bnode->id;
1642                 if (id == NULL) {
1643                         continue;
1644                 }
1645                 ID_Type id_type = GS(id->name);
1646                 if (id_type == ID_MA) {
1647                         build_material((Material *)bnode->id);
1648                 }
1649                 else if (id_type == ID_TE) {
1650                         build_texture((Tex *)bnode->id);
1651                 }
1652                 else if (id_type == ID_IM) {
1653                         /* nothing for now. */
1654                 }
1655                 else if (id_type == ID_OB) {
1656                         build_object((Object *)id);
1657                 }
1658                 else if (id_type == ID_SCE) {
1659                         /* Scenes are used by compositor trees, and handled by render
1660                          * pipeline. No need to build dependencies for them here.
1661                          */
1662                 }
1663                 else if (bnode->type == NODE_GROUP) {
1664                         bNodeTree *group_ntree = (bNodeTree *)id;
1665                         if ((group_ntree->id.tag & LIB_TAG_DOIT) == 0) {
1666                                 build_nodetree(group_ntree);
1667                                 group_ntree->id.tag |= LIB_TAG_DOIT;
1668                         }
1669                         OperationKey group_parameters_key(&group_ntree->id,
1670                                                           DEG_NODE_TYPE_PARAMETERS,
1671                                                           DEG_OPCODE_PARAMETERS_EVAL);
1672                         add_relation(group_parameters_key, parameters_key, "Group Node");
1673                 }
1674                 else {
1675                         BLI_assert(!"Unknown ID type used for node");
1676                 }
1677         }
1678
1679         if (needs_animdata_node(ntree_id)) {
1680                 ComponentKey animation_key(ntree_id, DEG_NODE_TYPE_ANIMATION);
1681                 add_relation(animation_key, parameters_key, "NTree Parameters");
1682         }
1683 }
1684
1685 /* Recursively build graph for material */
1686 void DepsgraphRelationBuilder::build_material(Material *ma)
1687 {
1688         ID *ma_id = &ma->id;
1689         if (ma_id->tag & LIB_TAG_DOIT) {
1690                 return;
1691         }
1692         ma_id->tag |= LIB_TAG_DOIT;
1693
1694         /* animation */
1695         build_animdata(ma_id);
1696
1697         /* textures */
1698         build_texture_stack(ma->mtex);
1699
1700         /* material's nodetree */
1701         if (ma->nodetree != NULL) {
1702                 build_nodetree(ma->nodetree);
1703                 OperationKey ntree_key(&ma->nodetree->id,
1704                                        DEG_NODE_TYPE_PARAMETERS,
1705                                        DEG_OPCODE_PARAMETERS_EVAL);
1706                 OperationKey material_key(&ma->id,
1707                                           DEG_NODE_TYPE_SHADING,
1708                                           DEG_OPCODE_PLACEHOLDER,
1709                                           "Material Update");
1710                 add_relation(ntree_key, material_key, "Material's NTree");
1711         }
1712 }
1713
1714 /* Recursively build graph for texture */
1715 void DepsgraphRelationBuilder::build_texture(Tex *tex)
1716 {
1717         ID *tex_id = &tex->id;
1718         if (tex_id->tag & LIB_TAG_DOIT) {
1719                 return;
1720         }
1721         tex_id->tag |= LIB_TAG_DOIT;
1722
1723         /* texture itself */
1724         build_animdata(tex_id);
1725
1726         /* texture's nodetree */
1727         build_nodetree(tex->nodetree);
1728 }
1729
1730 /* Texture-stack attached to some shading datablock */
1731 void DepsgraphRelationBuilder::build_texture_stack(MTex **texture_stack)
1732 {
1733         int i;
1734
1735         /* for now assume that all texture-stacks have same number of max items */
1736         for (i = 0; i < MAX_MTEX; i++) {
1737                 MTex *mtex = texture_stack[i];
1738                 if (mtex && mtex->tex)
1739                         build_texture(mtex->tex);
1740         }
1741 }
1742
1743 void DepsgraphRelationBuilder::build_compositor(Scene *scene)
1744 {
1745         /* For now, just a plain wrapper? */
1746         build_nodetree(scene->nodetree);
1747 }
1748
1749 void DepsgraphRelationBuilder::build_gpencil(bGPdata *gpd)
1750 {
1751         /* animation */
1752         build_animdata(&gpd->id);
1753
1754         // TODO: parent object (when that feature is implemented)
1755 }
1756
1757 bool DepsgraphRelationBuilder::needs_animdata_node(ID *id)
1758 {
1759         AnimData *adt = BKE_animdata_from_id(id);
1760         if (adt != NULL) {
1761                 return (adt->action != NULL) || (adt->nla_tracks.first != NULL);
1762         }
1763         return false;
1764 }
1765
1766 void DepsgraphRelationBuilder::build_cachefile(CacheFile *cache_file) {
1767         /* Animation. */
1768         build_animdata(&cache_file->id);
1769 }
1770
1771 void DepsgraphRelationBuilder::build_mask(Mask *mask)
1772 {
1773         ID *mask_id = &mask->id;
1774         /* F-Curve animation. */
1775         build_animdata(mask_id);
1776         /* Own mask animation. */
1777         OperationKey mask_animation_key(mask_id,
1778                                         DEG_NODE_TYPE_ANIMATION,
1779                                         DEG_OPCODE_MASK_ANIMATION);
1780         TimeSourceKey time_src_key;
1781         add_relation(time_src_key, mask_animation_key, "TimeSrc -> Mask Animation");
1782         /* Final mask evaluation. */
1783         ComponentKey parameters_key(mask_id, DEG_NODE_TYPE_PARAMETERS);
1784         add_relation(mask_animation_key, parameters_key, "Mask Animation -> Mask Eval");
1785 }
1786
1787 void DepsgraphRelationBuilder::build_movieclip(MovieClip *clip)
1788 {
1789         /* Animation. */
1790         build_animdata(&clip->id);
1791 }
1792
1793 }  // namespace DEG