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                                                  bool check_unique)
 279 {
 280         if (timesrc && node_to) {
 281                 graph_->add_new_relation(timesrc, node_to, description, check_unique);
 282         }
 283         else {
 284                 DEG_DEBUG_PRINTF("add_time_relation(%p = %s, %p = %s, %s) Failed\n",
 285                                  timesrc,   (timesrc) ? timesrc->identifier().c_str() : "<None>",
 286                                  node_to,   (node_to) ? node_to->identifier().c_str() : "<None>",
 287                                  description);
 288         }
 289 }
 290
 291 void DepsgraphRelationBuilder::add_operation_relation(
 292         OperationDepsNode *node_from,
 293         OperationDepsNode *node_to,
 294         const char *description,
 295         bool check_unique)
 296 {
 297         if (node_from && node_to) {
 298                 graph_->add_new_relation(node_from, node_to, description, check_unique);
 299         }
 300         else {
 301                 DEG_DEBUG_PRINTF("add_operation_relation(%p = %s, %p = %s, %s) Failed\n",
 302                                  node_from, (node_from) ? node_from->identifier().c_str() : "<None>",
 303                                  node_to,   (node_to)   ? node_to->identifier().c_str() : "<None>",
 304                                  description);
 305         }
 306 }
 307
 308 void DepsgraphRelationBuilder::add_collision_relations(
 309         const OperationKey &key,
 310         Scene *scene,
 311         Object *object,
 312         Group *group,
 313         int layer,
 314         bool dupli,
 315         const char *name)
 316 {
 317         unsigned int numcollobj;
 318         Object **collobjs = get_collisionobjects_ext(
 319                 scene,
 320                 object,
 321                 group,
 322                 layer,
 323                 &numcollobj,
 324                 eModifierType_Collision,
 325                 dupli);
 326         for (unsigned int i = 0; i < numcollobj; i++) {
 327                 Object *ob1 = collobjs[i];
 328
 329                 ComponentKey trf_key(&ob1->id, DEG_NODE_TYPE_TRANSFORM);
 330                 add_relation(trf_key, key, name);
 331
 332                 ComponentKey coll_key(&ob1->id, DEG_NODE_TYPE_GEOMETRY);
 333                 add_relation(coll_key, key, name);
 334         }
 335         if (collobjs != NULL) {
 336                 MEM_freeN(collobjs);
 337         }
 338 }
 339
 340 void DepsgraphRelationBuilder::add_forcefield_relations(
 341         const OperationKey &key,
 342         Scene *scene,
 343         Object *object,
 344         ParticleSystem *psys,
 345         EffectorWeights *eff,
 346         bool add_absorption,
 347         const char *name)
 348 {
 349         ListBase *effectors = pdInitEffectors(scene, object, psys, eff, false);
 350         if (effectors != NULL) {
 351                 LINKLIST_FOREACH(EffectorCache *, eff, effectors) {
 352                         if (eff->ob != object) {
 353                                 ComponentKey eff_key(&eff->ob->id, DEG_NODE_TYPE_TRANSFORM);
 354                                 add_relation(eff_key, key, name);
 355                         }
 356                         if (eff->psys != NULL) {
 357                                 if (eff->ob != object) {
 358                                         ComponentKey eff_key(&eff->ob->id, DEG_NODE_TYPE_EVAL_PARTICLES);
 359                                         add_relation(eff_key, key, name);
 360
 361                                         /* TODO: remove this when/if EVAL_PARTICLES is sufficient
 362                                          * for up to date particles.
 363                                          */
 364                                         ComponentKey mod_key(&eff->ob->id, DEG_NODE_TYPE_GEOMETRY);
 365                                         add_relation(mod_key, key, name);
 366                                 }
 367                                 else if (eff->psys != psys) {
 368                                         OperationKey eff_key(&eff->ob->id,
 369                                                              DEG_NODE_TYPE_EVAL_PARTICLES,
 370                                                              DEG_OPCODE_PARTICLE_SYSTEM_EVAL,
 371                                                              eff->psys->name);
 372                                         add_relation(eff_key, key, name);
 373                                 }
 374                         }
 375                         if (eff->pd->forcefield == PFIELD_SMOKEFLOW && eff->pd->f_source) {
 376                                 ComponentKey trf_key(&eff->pd->f_source->id,
 377                                                      DEG_NODE_TYPE_TRANSFORM);
 378                                 add_relation(trf_key, key, "Smoke Force Domain");
 379
 380                                 ComponentKey eff_key(&eff->pd->f_source->id,
 381                                                      DEG_NODE_TYPE_GEOMETRY);
 382                                 add_relation(eff_key, key, "Smoke Force Domain");
 383                         }
 384                         if (add_absorption && (eff->pd->flag & PFIELD_VISIBILITY)) {
 385                                 add_collision_relations(key,
 386                                                         scene,
 387                                                         object,
 388                                                         NULL,
 389                                                         eff->ob->lay,
 390                                                         true,
 391                                                         "Force Absorption");
 392                         }
 393                 }
 394         }
 395
 396         pdEndEffectors(&effectors);
 397 }
 398
 399 Depsgraph *DepsgraphRelationBuilder::getGraph()
 400 {
 401         return graph_;
 402 }
 403
 404 /* **** Functions to build relations between entities  **** */
 405
 406 void DepsgraphRelationBuilder::begin_build()
 407 {
 408         /* LIB_TAG_DOIT is used to indicate whether node for given ID was already
 409          * created or not.
 410          */
 411         BKE_main_id_tag_all(bmain_, LIB_TAG_DOIT, false);
 412         /* XXX nested node trees are notr included in tag-clearing above,
 413          * so we need to do this manually.
 414          */
 415         FOREACH_NODETREE(bmain_, nodetree, id)
 416         {
 417                 if (id != (ID *)nodetree) {
 418                         nodetree->id.tag &= ~LIB_TAG_DOIT;
 419                 }
 420         }
 421         FOREACH_NODETREE_END;
 422 }
 423
 424 void DepsgraphRelationBuilder::build_group(Object *object, Group *group)
 425 {
 426         ID *group_id = &group->id;
 427         bool group_done = (group_id->tag & LIB_TAG_DOIT) != 0;
 428         OperationKey object_local_transform_key(&object->id,
 429                                                 DEG_NODE_TYPE_TRANSFORM,
 430                                                 DEG_OPCODE_TRANSFORM_LOCAL);
 431         LINKLIST_FOREACH (GroupObject *, go, &group->gobject) {
 432                 if (!group_done) {
 433                         build_object(go->ob);
 434                 }
 435                 ComponentKey dupli_transform_key(&go->ob->id, DEG_NODE_TYPE_TRANSFORM);
 436                 add_relation(dupli_transform_key, object_local_transform_key, "Dupligroup");
 437         }
 438         group_id->tag |= LIB_TAG_DOIT;
 439 }
 440
 441 void DepsgraphRelationBuilder::build_object(Object *object)
 442 {
 443         if (object->id.tag & LIB_TAG_DOIT) {
 444                 return;
 445         }
 446         object->id.tag |= LIB_TAG_DOIT;
 447         /* Object Transforms */
 448         eDepsOperation_Code base_op = (object->parent) ? DEG_OPCODE_TRANSFORM_PARENT
 449                                                        : DEG_OPCODE_TRANSFORM_LOCAL;
 450         OperationKey base_op_key(&object->id, DEG_NODE_TYPE_TRANSFORM, base_op);
 451         OperationKey local_transform_key(&object->id,
 452                                          DEG_NODE_TYPE_TRANSFORM,
 453                                          DEG_OPCODE_TRANSFORM_LOCAL);
 454         OperationKey parent_transform_key(&object->id,
 455                                           DEG_NODE_TYPE_TRANSFORM,
 456                                           DEG_OPCODE_TRANSFORM_PARENT);
 457         OperationKey final_transform_key(&object->id,
 458                                          DEG_NODE_TYPE_TRANSFORM,
 459                                          DEG_OPCODE_TRANSFORM_FINAL);
 460         OperationKey ob_ubereval_key(&object->id,
 461                                      DEG_NODE_TYPE_TRANSFORM,
 462                                      DEG_OPCODE_TRANSFORM_OBJECT_UBEREVAL);
 463         /* Parenting. */
 464         if (object->parent != NULL) {
 465                 /* Parent relationship. */
 466                 build_object_parent(object);
 467                 /* Local -> parent. */
 468                 add_relation(local_transform_key,
 469                              parent_transform_key,
 470                              "ObLocal -> ObParent");
 471         }
 472         /* Modifiers. */
 473         if (object->modifiers.first != NULL) {
 474                 BuilderWalkUserData data;
 475                 data.builder = this;
 476                 modifiers_foreachObjectLink(object, modifier_walk, &data);
 477         }
 478         /* Constraints. */
 479         if (object->constraints.first != NULL) {
 480                 BuilderWalkUserData data;
 481                 data.builder = this;
 482                 BKE_constraints_id_loop(&object->constraints, constraint_walk, &data);
 483         }
 484         /* Object constraints. */
 485         if (object->constraints.first != NULL) {
 486                 OperationKey constraint_key(&object->id,
 487                                             DEG_NODE_TYPE_TRANSFORM,
 488                                             DEG_OPCODE_TRANSFORM_CONSTRAINTS);
 489                 /* Constraint relations. */
 490                 build_constraints(&object->id,
 491                                   DEG_NODE_TYPE_TRANSFORM,
 492                                   "",
 493                                   &object->constraints,
 494                                   NULL);
 495                 /* operation order */
 496                 add_relation(base_op_key, constraint_key, "ObBase-> Constraint Stack");
 497                 add_relation(constraint_key, final_transform_key, "ObConstraints -> Done");
 498                 // XXX
 499                 add_relation(constraint_key, ob_ubereval_key, "Temp Ubereval");
 500                 add_relation(ob_ubereval_key, final_transform_key, "Temp Ubereval");
 501         }
 502         else {
 503                 /* NOTE: Keep an eye here, we skip some relations here to "streamline"
 504                  * dependencies and avoid transitive relations which causes overhead.
 505                  * But once we get rid of uber eval node this will need reconsideration.
 506                  */
 507                 if (object->rigidbody_object == NULL) {
 508                         /* Rigid body will hook up another node inbetween, so skip
 509                          * relation here to avoid transitive relation.
 510                          */
 511                         add_relation(base_op_key, ob_ubereval_key, "Temp Ubereval");
 512                 }
 513                 add_relation(ob_ubereval_key, final_transform_key, "Temp Ubereval");
 514         }
 515         /* Animation data */
 516         build_animdata(&object->id);
 517         /* Object data. */
 518         build_object_data(object);
 519         /* Particle systems. */
 520         if (object->particlesystem.first != NULL) {
 521                 build_particles(object);
 522         }
 523         /* Grease pencil. */
 524         if (object->gpd != NULL) {
 525                 build_gpencil(object->gpd);
 526         }
 527         /* Object that this is a proxy for. */
 528         if (object->proxy != NULL) {
 529                 object->proxy->proxy_from = object;
 530                 build_object(object->proxy);
 531                 /* TODO(sergey): This is an inverted relation, matches old depsgraph
 532                  * behavior and need to be investigated if it still need to be inverted.
 533                  */
 534                 ComponentKey ob_pose_key(&object->id, DEG_NODE_TYPE_EVAL_POSE);
 535                 ComponentKey proxy_pose_key(&object->proxy->id, DEG_NODE_TYPE_EVAL_POSE);
 536                 add_relation(ob_pose_key, proxy_pose_key, "Proxy");
 537         }
 538         /* Object dupligroup. */
 539         if (object->dup_group != NULL) {
 540                 build_group(object, object->dup_group);
 541         }
 542 }
 543
 544 void DepsgraphRelationBuilder::build_object_data(Object *object)
 545 {
 546         if (object->data == NULL) {
 547                 return;
 548         }
 549         ID *obdata_id = (ID *)object->data;
 550         /* Object data animation. */
 551         build_animdata(obdata_id);
 552         /* type-specific data. */
 553         switch (object->type) {
 554                 case OB_MESH:
 555                 case OB_CURVE:
 556                 case OB_FONT:
 557                 case OB_SURF:
 558                 case OB_MBALL:
 559                 case OB_LATTICE:
 560                 {
 561                         build_obdata_geom(object);
 562                         break;
 563                 }
 564                 case OB_ARMATURE:
 565                         if (ID_IS_LINKED(object) && object->proxy_from != NULL) {
 566                                 build_proxy_rig(object);
 567                         }
 568                         else {
 569                                 build_rig(object);
 570                         }
 571                         break;
 572                 case OB_LAMP:
 573                         build_lamp(object);
 574                         break;
 575                 case OB_CAMERA:
 576                         build_camera(object);
 577                         break;
 578         }
 579         Key *key = BKE_key_from_object(object);
 580         if (key != NULL) {
 581                 ComponentKey geometry_key((ID *)object->data, DEG_NODE_TYPE_GEOMETRY);
 582                 ComponentKey key_key(&key->id, DEG_NODE_TYPE_GEOMETRY);
 583                 add_relation(key_key, geometry_key, "Shapekeys");
 584         }
 585 }
 586
 587 void DepsgraphRelationBuilder::build_object_parent(Object *object)
 588 {
 589         /* XXX: for now, need to use the component key (not just direct to the parent op),
 590          * or else the matrix doesn't get reset/
 591          */
 592         // XXX: @sergey - it would be good if we got that backwards flushing working
 593         // when tagging for updates.
 594         //OperationKey ob_key(&object->id, DEG_NODE_TYPE_TRANSFORM, DEG_OPCODE_TRANSFORM_PARENT);
 595         ComponentKey ob_key(&object->id, DEG_NODE_TYPE_TRANSFORM);
 596
 597         /* type-specific links */
 598         switch (object->partype) {
 599                 case PARSKEL:  /* Armature Deform (Virtual Modifier) */
 600                 {
 601                         ComponentKey parent_key(&object->parent->id, DEG_NODE_TYPE_TRANSFORM);
 602                         add_relation(parent_key, ob_key, "Armature Deform Parent");
 603                         break;
 604                 }
 605
 606                 case PARVERT1: /* Vertex Parent */
 607                 case PARVERT3:
 608                 {
 609                         ComponentKey parent_key(&object->parent->id, DEG_NODE_TYPE_GEOMETRY);
 610                         add_relation(parent_key, ob_key, "Vertex Parent");
 611
 612                         /* XXX not sure what this is for or how you could be done properly - lukas */
 613                         OperationDepsNode *parent_node = find_operation_node(parent_key);
 614                         if (parent_node != NULL) {
 615                                 parent_node->customdata_mask |= CD_MASK_ORIGINDEX;
 616                         }
 617
 618                         ComponentKey transform_key(&object->parent->id, DEG_NODE_TYPE_TRANSFORM);
 619                         add_relation(transform_key, ob_key, "Vertex Parent TFM");
 620                         break;
 621                 }
 622
 623                 case PARBONE: /* Bone Parent */
 624                 {
 625                         ComponentKey parent_bone_key(&object->parent->id,
 626                                                      DEG_NODE_TYPE_BONE,
 627                                                      object->parsubstr);
 628                         OperationKey parent_transform_key(&object->parent->id,
 629                                                           DEG_NODE_TYPE_TRANSFORM,
 630                                                           DEG_OPCODE_TRANSFORM_FINAL);
 631                         add_relation(parent_bone_key, ob_key, "Bone Parent");
 632                         add_relation(parent_transform_key, ob_key, "Armature Parent");
 633                         break;
 634                 }
 635
 636                 default:
 637                 {
 638                         if (object->parent->type == OB_LATTICE) {
 639                                 /* Lattice Deform Parent - Virtual Modifier */
 640                                 // XXX: no virtual modifiers should be left!
 641                                 ComponentKey parent_key(&object->parent->id, DEG_NODE_TYPE_TRANSFORM);
 642                                 ComponentKey geom_key(&object->parent->id, DEG_NODE_TYPE_GEOMETRY);
 643
 644                                 add_relation(parent_key, ob_key, "Lattice Deform Parent");
 645                                 add_relation(geom_key, ob_key, "Lattice Deform Parent Geom");
 646                         }
 647                         else if (object->parent->type == OB_CURVE) {
 648                                 Curve *cu = (Curve *)object->parent->data;
 649
 650                                 if (cu->flag & CU_PATH) {
 651                                         /* Follow Path */
 652                                         ComponentKey parent_key(&object->parent->id, DEG_NODE_TYPE_GEOMETRY);
 653                                         add_relation(parent_key, ob_key, "Curve Follow Parent");
 654
 655                                         ComponentKey transform_key(&object->parent->id, DEG_NODE_TYPE_TRANSFORM);
 656                                         add_relation(transform_key, ob_key, "Curve Follow TFM");
 657                                 }
 658                                 else {
 659                                         /* Standard Parent */
 660                                         ComponentKey parent_key(&object->parent->id, DEG_NODE_TYPE_TRANSFORM);
 661                                         add_relation(parent_key, ob_key, "Curve Parent");
 662                                 }
 663                         }
 664                         else {
 665                                 /* Standard Parent */
 666                                 ComponentKey parent_key(&object->parent->id, DEG_NODE_TYPE_TRANSFORM);
 667                                 add_relation(parent_key, ob_key, "Parent");
 668                         }
 669                         break;
 670                 }
 671         }
 672
 673         /* exception case: parent is duplivert */
 674         if ((object->type == OB_MBALL) && (object->parent->transflag & OB_DUPLIVERTS)) {
 675                 //dag_add_relation(dag, node2, node, DAG_RL_DATA_DATA | DAG_RL_OB_OB, "Duplivert");
 676         }
 677 }
 678
 679 void DepsgraphRelationBuilder::build_constraints(ID *id,
 680                                                  eDepsNode_Type component_type,
 681                                                  const char *component_subdata,
 682                                                  ListBase *constraints,
 683                                                  RootPChanMap *root_map)
 684 {
 685         OperationKey constraint_op_key(
 686                 id,
 687                 component_type,
 688                 component_subdata,
 689                 (component_type == DEG_NODE_TYPE_BONE)
 690                         ? DEG_OPCODE_BONE_CONSTRAINTS
 691                         : DEG_OPCODE_TRANSFORM_CONSTRAINTS);
 692         /* Add dependencies for each constraint in turn. */
 693         for (bConstraint *con = (bConstraint *)constraints->first; con; con = con->next) {
 694                 const bConstraintTypeInfo *cti = BKE_constraint_typeinfo_get(con);
 695                 /* Invalid constraint type. */
 696                 if (cti == NULL) {
 697                         continue;
 698                 }
 699                 /* Special case for camera tracking -- it doesn't use targets to
 700                  * define relations.
 701                  */
 702                 /* TODO: we can now represent dependencies in a much richer manner,
 703                  * so review how this is done.
 704                  */
 705                 if (ELEM(cti->type,
 706                          CONSTRAINT_TYPE_FOLLOWTRACK,
 707                          CONSTRAINT_TYPE_CAMERASOLVER,
 708                          CONSTRAINT_TYPE_OBJECTSOLVER))
 709                 {
 710                         bool depends_on_camera = false;
 711                         if (cti->type == CONSTRAINT_TYPE_FOLLOWTRACK) {
 712                                 bFollowTrackConstraint *data = (bFollowTrackConstraint *)con->data;
 713                                 if (((data->clip) ||
 714                                      (data->flag & FOLLOWTRACK_ACTIVECLIP)) && data->track[0])
 715                                 {
 716                                         depends_on_camera = true;
 717                                 }
 718                                 if (data->depth_ob) {
 719                                         ComponentKey depth_transform_key(&data->depth_ob->id,
 720                                                                          DEG_NODE_TYPE_TRANSFORM);
 721                                         ComponentKey depth_geometry_key(&data->depth_ob->id,
 722                                                                         DEG_NODE_TYPE_GEOMETRY);
 723                                         add_relation(depth_transform_key, constraint_op_key, cti->name);
 724                                         add_relation(depth_geometry_key, constraint_op_key, cti->name);
 725                                 }
 726                         }
 727                         else if (cti->type == CONSTRAINT_TYPE_OBJECTSOLVER) {
 728                                 depends_on_camera = true;
 729                         }
 730                         if (depends_on_camera && scene_->camera != NULL) {
 731                                 ComponentKey camera_key(&scene_->camera->id, DEG_NODE_TYPE_TRANSFORM);
 732                                 add_relation(camera_key, constraint_op_key, cti->name);
 733                         }
 734                         /* TODO(sergey): This is more a TimeSource -> MovieClip ->
 735                          * Constraint dependency chain.
 736                          */
 737                         TimeSourceKey time_src_key;
 738                         add_relation(time_src_key, constraint_op_key, "TimeSrc -> Animation");
 739                 }
 740                 else if (cti->type == CONSTRAINT_TYPE_TRANSFORM_CACHE) {
 741                         /* TODO(kevin): This is more a TimeSource -> CacheFile -> Constraint
 742                          * dependency chain.
 743                          */
 744                         TimeSourceKey time_src_key;
 745                         add_relation(time_src_key, constraint_op_key, "TimeSrc -> Animation");
 746                         bTransformCacheConstraint *data = (bTransformCacheConstraint *)con->data;
 747                         if (data->cache_file) {
 748                                 ComponentKey cache_key(&data->cache_file->id, DEG_NODE_TYPE_CACHE);
 749                                 add_relation(cache_key, constraint_op_key, cti->name);
 750                         }
 751                 }
 752                 else if (cti->get_constraint_targets) {
 753                         ListBase targets = {NULL, NULL};
 754                         cti->get_constraint_targets(con, &targets);
 755                         LINKLIST_FOREACH (bConstraintTarget *, ct, &targets) {
 756                                 if (ct->tar == NULL) {
 757                                         continue;
 758                                 }
 759                                 if (ELEM(con->type,
 760                                          CONSTRAINT_TYPE_KINEMATIC,
 761                                          CONSTRAINT_TYPE_SPLINEIK))
 762                                 {
 763                                         /* Ignore IK constraints - these are handled separately
 764                                          * (on pose level).
 765                                          */
 766                                 }
 767                                 else if (ELEM(con->type,
 768                                               CONSTRAINT_TYPE_FOLLOWPATH,
 769                                               CONSTRAINT_TYPE_CLAMPTO))
 770                                 {
 771                                         /* These constraints require path geometry data. */
 772                                         ComponentKey target_key(&ct->tar->id, DEG_NODE_TYPE_GEOMETRY);
 773                                         add_relation(target_key, constraint_op_key, cti->name);
 774                                         ComponentKey target_transform_key(&ct->tar->id,
 775                                                                           DEG_NODE_TYPE_TRANSFORM);
 776                                         add_relation(target_transform_key, constraint_op_key, cti->name);
 777                                 }
 778                                 else if ((ct->tar->type == OB_ARMATURE) && (ct->subtarget[0])) {
 779                                         /* bone */
 780                                         if (&ct->tar->id == id) {
 781                                                 /* same armature  */
 782                                                 eDepsOperation_Code target_key_opcode;
 783                                                 /* Using "done" here breaks in-chain deps, while using
 784                                                  * "ready" here breaks most production rigs instead.
 785                                                  * So, we do a compromise here, and only do this when an
 786                                                  * IK chain conflict may occur.
 787                                                  */
 788                                                 if (root_map->has_common_root(component_subdata,
 789                                                                               ct->subtarget))
 790                                                 {
 791                                                         target_key_opcode = DEG_OPCODE_BONE_READY;
 792                                                 }
 793                                                 else {
 794                                                         target_key_opcode = DEG_OPCODE_BONE_DONE;
 795                                                 }
 796                                                 OperationKey target_key(&ct->tar->id,
 797                                                                         DEG_NODE_TYPE_BONE,
 798                                                                         ct->subtarget,
 799                                                                         target_key_opcode);
 800                                                 add_relation(target_key, constraint_op_key, cti->name);
 801                                         }
 802                                         else {
 803                                                 /* Different armature - we can safely use the result
 804                                                  * of that.
 805                                                  */
 806                                                 OperationKey target_key(&ct->tar->id,
 807                                                                         DEG_NODE_TYPE_BONE,
 808                                                                         ct->subtarget,
 809                                                                         DEG_OPCODE_BONE_DONE);
 810                                                 add_relation(target_key, constraint_op_key, cti->name);
 811                                         }
 812                                 }
 813                                 else if (ELEM(ct->tar->type, OB_MESH, OB_LATTICE) &&
 814                                          (ct->subtarget[0]))
 815                                 {
 816                                         /* Vertex group. */
 817                                         /* NOTE: for now, we don't need to represent vertex groups
 818                                          * separately.
 819                                          */
 820                                         ComponentKey target_key(&ct->tar->id, DEG_NODE_TYPE_GEOMETRY);
 821                                         add_relation(target_key, constraint_op_key, cti->name);
 822                                         if (ct->tar->type == OB_MESH) {
 823                                                 OperationDepsNode *node2 = find_operation_node(target_key);
 824                                                 if (node2 != NULL) {
 825                                                         node2->customdata_mask |= CD_MASK_MDEFORMVERT;
 826                                                 }
 827                                         }
 828                                 }
 829                                 else if (con->type == CONSTRAINT_TYPE_SHRINKWRAP) {
 830                                         /* Constraints which requires the target object surface. */
 831                                         ComponentKey target_key(&ct->tar->id, DEG_NODE_TYPE_GEOMETRY);
 832                                         add_relation(target_key, constraint_op_key, cti->name);
 833                                         /* NOTE: obdata eval now doesn't necessarily depend on the
 834                                          * object's transform.
 835                                          */
 836                                         ComponentKey target_transform_key(&ct->tar->id,
 837                                                                           DEG_NODE_TYPE_TRANSFORM);
 838                                         add_relation(target_transform_key, constraint_op_key, cti->name);
 839                                 }
 840                                 else {
 841                                         /* Standard object relation. */
 842                                         // TODO: loc vs rot vs scale?
 843                                         if (&ct->tar->id == id) {
 844                                                 /* Constraint targetting own object:
 845                                                  * - This case is fine IFF we're dealing with a bone
 846                                                  *   constraint pointing to its own armature. In that
 847                                                  *   case, it's just transform -> bone.
 848                                                  * - If however it is a real self targetting case, just
 849                                                  *   make it depend on the previous constraint (or the
 850                                                  *   pre-constraint state).
 851                                                  */
 852                                                 if ((ct->tar->type == OB_ARMATURE) &&
 853                                                     (component_type == DEG_NODE_TYPE_BONE))
 854                                                 {
 855                                                         OperationKey target_key(&ct->tar->id,
 856                                                                                 DEG_NODE_TYPE_TRANSFORM,
 857                                                                                 DEG_OPCODE_TRANSFORM_FINAL);
 858                                                         add_relation(target_key, constraint_op_key, cti->name);
 859                                                 }
 860                                                 else {
 861                                                         OperationKey target_key(&ct->tar->id,
 862                                                                                 DEG_NODE_TYPE_TRANSFORM,
 863                                                                                 DEG_OPCODE_TRANSFORM_LOCAL);
 864                                                         add_relation(target_key, constraint_op_key, cti->name);
 865                                                 }
 866                                         }
 867                                         else {
 868                                                 /* Normal object dependency. */
 869                                                 OperationKey target_key(&ct->tar->id,
 870                                                                         DEG_NODE_TYPE_TRANSFORM,
 871                                                                         DEG_OPCODE_TRANSFORM_FINAL);
 872                                                 add_relation(target_key, constraint_op_key, cti->name);
 873                                         }
 874                                 }
 875                                 /* Constraints which needs world's matrix for transform.
 876                                  * TODO(sergey): More constraints here?
 877                                  */
 878                                 if (ELEM(con->type,
 879                                          CONSTRAINT_TYPE_ROTLIKE,
 880                                          CONSTRAINT_TYPE_SIZELIKE,
 881                                          CONSTRAINT_TYPE_LOCLIKE,
 882                                          CONSTRAINT_TYPE_TRANSLIKE))
 883                                 {
 884                                         /* TODO(sergey): Add used space check. */
 885                                         ComponentKey target_transform_key(&ct->tar->id,
 886                                                                           DEG_NODE_TYPE_TRANSFORM);
 887                                         add_relation(target_transform_key, constraint_op_key, cti->name);
 888                                 }
 889                         }
 890                         if (cti->flush_constraint_targets) {
 891                                 cti->flush_constraint_targets(con, &targets, 1);
 892                         }
 893                 }
 894         }
 895 }
 896
 897 void DepsgraphRelationBuilder::build_animdata(ID *id)
 898 {
 899         /* Animation curves and NLA. */
 900         build_animdata_curves(id);
 901         /* Drivers. */
 902         build_animdata_drievrs(id);
 903 }
 904
 905 void DepsgraphRelationBuilder::build_animdata_curves(ID *id)
 906 {
 907         AnimData *adt = BKE_animdata_from_id(id);
 908         if (adt == NULL) {
 909                 return;
 910         }
 911         if (adt->action == NULL && adt->nla_tracks.first == NULL) {
 912                 return;
 913         }
 914         /* Wire up dependency to time source. */
 915         ComponentKey adt_key(id, DEG_NODE_TYPE_ANIMATION);
 916         TimeSourceKey time_src_key;
 917         add_relation(time_src_key, adt_key, "TimeSrc -> Animation");
 918         /* Build relations from animation operation to properties it changes. */
 919         build_animdata_curves_targets(id);
 920 }
 921
 922 void DepsgraphRelationBuilder::build_animdata_curves_targets(ID *id)
 923 {
 924         AnimData *adt = BKE_animdata_from_id(id);
 925         if (adt == NULL || adt->action == NULL) {
 926                 return;
 927         }
 928         /* Get source operation. */
 929         ComponentKey adt_key(id, DEG_NODE_TYPE_ANIMATION);
 930         DepsNode *node_from = get_node(adt_key);
 931         BLI_assert(node_from != NULL);
 932         if (node_from == NULL) {
 933                 return;
 934         }
 935         OperationDepsNode *operation_from = node_from->get_exit_operation();
 936         BLI_assert(operation_from != NULL);
 937         /* Iterate over all curves and build relations. */
 938         PointerRNA id_ptr;
 939         RNA_id_pointer_create(id, &id_ptr);
 940         LINKLIST_FOREACH(FCurve *, fcu, &adt->action->curves) {
 941                 PointerRNA ptr;
 942                 PropertyRNA *prop;
 943                 int index;
 944                 if (!RNA_path_resolve_full(&id_ptr, fcu->rna_path,
 945                                            &ptr, &prop, &index))
 946                 {
 947                         continue;
 948                 }
 949                 DepsNode *node_to = graph_->find_node_from_pointer(&ptr, prop);
 950                 if (node_to == NULL) {
 951                         continue;
 952                 }
 953                 OperationDepsNode *operation_to = node_to->get_entry_operation();
 954                 /* NOTE: Special case for bones, avoid relation from animation to
 955                  * each of the bones. Bone evaluation could only start from pose
 956                  * init anyway.
 957                  */
 958                 if (operation_to->opcode == DEG_OPCODE_BONE_LOCAL) {
 959                         OperationKey pose_init_key(id,
 960                                                    DEG_NODE_TYPE_EVAL_POSE,
 961                                                    DEG_OPCODE_POSE_INIT);
 962                         add_relation(adt_key, pose_init_key, "Animation -> Prop", true);
 963                         continue;
 964                 }
 965                 graph_->add_new_relation(operation_from, operation_to,
 966                                          "Animation -> Prop",
 967                                          true);
 968         }
 969 }
 970
 971 void DepsgraphRelationBuilder::build_animdata_drievrs(ID *id)
 972 {
 973         AnimData *adt = BKE_animdata_from_id(id);
 974         if (adt == NULL) {
 975                 return;
 976         }
 977         ComponentKey adt_key(id, DEG_NODE_TYPE_ANIMATION);
 978         LINKLIST_FOREACH (FCurve *, fcu, &adt->drivers) {
 979                 OperationKey driver_key(id,
 980                                         DEG_NODE_TYPE_PARAMETERS,
 981                                         DEG_OPCODE_DRIVER,
 982                                         fcu->rna_path ? fcu->rna_path : "",
 983                                         fcu->array_index);
 984
 985                 /* create the driver's relations to targets */
 986                 build_driver(id, fcu);
 987
 988                 /* Special case for array drivers: we can not multithread them because
 989                  * of the way how they work internally: animation system will write the
 990                  * whole array back to RNA even when changing individual array value.
 991                  *
 992                  * Some tricky things here:
 993                  * - array_index is -1 for single channel drivers, meaning we only have
 994                  *   to do some magic when array_index is not -1.
 995                  * - We do relation from next array index to a previous one, so we don't
 996                  *   have to deal with array index 0.
 997                  *
 998                  * TODO(sergey): Avoid liner lookup somehow.
 999                  */
1000                 if (fcu->array_index > 0) {
1001                         FCurve *fcu_prev = NULL;
1002                         LINKLIST_FOREACH (FCurve *, fcu_candidate, &adt->drivers) {
1003                                 /* Writing to different RNA paths is  */
1004                                 const char *rna_path = fcu->rna_path ? fcu->rna_path : "";
1005                                 if (!STREQ(fcu_candidate->rna_path, rna_path)) {
1006                                         continue;
1007                                 }
1008                                 /* We only do relation from previous fcurve to previous one. */
1009                                 if (fcu_candidate->array_index >= fcu->array_index) {
1010                                         continue;
1011                                 }
1012                                 /* Choose fcurve with highest possible array index. */
1013                                 if (fcu_prev == NULL ||
1014                                     fcu_candidate->array_index > fcu_prev->array_index)
1015                                 {
1016                                         fcu_prev = fcu_candidate;
1017                                 }
1018                         }
1019                         if (fcu_prev != NULL) {
1020                                 OperationKey prev_driver_key(id,
1021                                                              DEG_NODE_TYPE_PARAMETERS,
1022                                                              DEG_OPCODE_DRIVER,
1023                                                              fcu_prev->rna_path ? fcu_prev->rna_path : "",
1024                                                              fcu_prev->array_index);
1025                                 OperationKey driver_key(id,
1026                                                         DEG_NODE_TYPE_PARAMETERS,
1027                                                         DEG_OPCODE_DRIVER,
1028                                                         fcu->rna_path ? fcu->rna_path : "",
1029                                                         fcu->array_index);
1030                                 add_relation(prev_driver_key, driver_key, "Driver Order");
1031                         }
1032                 }
1033
1034                 /* prevent driver from occurring before own animation... */
1035                 if (adt->action || adt->nla_tracks.first) {
1036                         add_relation(adt_key, driver_key, "AnimData Before Drivers");
1037                 }
1038         }
1039 }
1040
1041 void DepsgraphRelationBuilder::build_driver(ID *id, FCurve *fcu)
1042 {
1043         ChannelDriver *driver = fcu->driver;
1044         OperationKey driver_key(id,
1045                                 DEG_NODE_TYPE_PARAMETERS,
1046                                 DEG_OPCODE_DRIVER,
1047                                 fcu->rna_path ? fcu->rna_path : "",
1048                                 fcu->array_index);
1049         /* Driver -> data components (for interleaved evaluation
1050          * bones/constraints/modifiers).
1051          */
1052         build_driver_data(id, fcu);
1053         /* Loop over variables to get the target relationships. */
1054         build_driver_variables(id, fcu);
1055         /* It's quite tricky to detect if the driver actually depends on time or
1056          * not, so for now we'll be quite conservative here about optimization and
1057          * consider all python drivers to be depending on time.
1058          */
1059         if ((driver->type == DRIVER_TYPE_PYTHON) &&
1060             python_driver_depends_on_time(driver))
1061         {
1062                 TimeSourceKey time_src_key;
1063                 add_relation(time_src_key, driver_key, "TimeSrc -> Driver");
1064         }
1065 }
1066
1067 void DepsgraphRelationBuilder::build_driver_data(ID *id, FCurve *fcu)
1068 {
1069         OperationKey driver_key(id,
1070                                 DEG_NODE_TYPE_PARAMETERS,
1071                                 DEG_OPCODE_DRIVER,
1072                                 fcu->rna_path ? fcu->rna_path : "",
1073                                 fcu->array_index);
1074         const char *rna_path = fcu->rna_path ? fcu->rna_path : "";
1075         const RNAPathKey self_key(id, rna_path);
1076         if (GS(id->name) == ID_AR && strstr(rna_path, "bones[")) {
1077                 /* Drivers on armature-level bone settings (i.e. bbone stuff),
1078                  * which will affect the evaluation of corresponding pose bones.
1079                  */
1080                 IDDepsNode *arm_node = graph_->find_id_node(id);
1081                 char *bone_name = BLI_str_quoted_substrN(rna_path, "bones[");
1082                 if (arm_node && bone_name) {
1083                         /* Find objects which use this, and make their eval callbacks
1084                          * depend on this.
1085                          */
1086                         foreach (DepsRelation *rel, arm_node->outlinks) {
1087                                 IDDepsNode *to_node = (IDDepsNode *)rel->to;
1088                                 /* We only care about objects with pose data which use this. */
1089                                 if (GS(to_node->id->name) == ID_OB) {
1090                                         Object *object = (Object *)to_node->id;
1091                                         /* NOTE: object->pose may be NULL. */
1092                                         bPoseChannel *pchan = BKE_pose_channel_find_name(
1093                                                 object->pose, bone_name);
1094                                         if (pchan != NULL) {
1095                                                 OperationKey bone_key(&object->id,
1096                                                                       DEG_NODE_TYPE_BONE,
1097                                                                       pchan->name,
1098                                                                       DEG_OPCODE_BONE_LOCAL);
1099                                                 add_relation(driver_key,
1100                                                              bone_key,
1101                                                              "Arm Bone -> Driver -> Bone");
1102                                         }
1103                                 }
1104                         }
1105                         /* Free temp data. */
1106                         MEM_freeN(bone_name);
1107                         bone_name = NULL;
1108                 }
1109                 else {
1110                         fprintf(stderr,
1111                                 "Couldn't find armature bone name for driver path - '%s'\n",
1112                                 rna_path);
1113                 }
1114         }
1115         else {
1116                 RNAPathKey target_key(id, rna_path);
1117                 add_relation(driver_key, target_key, "Driver -> Target");
1118         }
1119 }
1120
1121 void DepsgraphRelationBuilder::build_driver_variables(ID *id, FCurve *fcu)
1122 {
1123         ChannelDriver *driver = fcu->driver;
1124         OperationKey driver_key(id,
1125                                 DEG_NODE_TYPE_PARAMETERS,
1126                                 DEG_OPCODE_DRIVER,
1127                                 fcu->rna_path ? fcu->rna_path : "",
1128                                 fcu->array_index);
1129         const char *rna_path = fcu->rna_path ? fcu->rna_path : "";
1130         const RNAPathKey self_key(id, rna_path);
1131
1132         LINKLIST_FOREACH (DriverVar *, dvar, &driver->variables) {
1133                 /* Only used targets. */
1134                 DRIVER_TARGETS_USED_LOOPER(dvar)
1135                 {
1136                         if (dtar->id == NULL) {
1137                                 continue;
1138                         }
1139                         /* Special handling for directly-named bones. */
1140                         if ((dtar->flag & DTAR_FLAG_STRUCT_REF) &&
1141                             (((Object *)dtar->id)->type == OB_ARMATURE) &&
1142                             (dtar->pchan_name[0]))
1143                         {
1144                                 Object *object = (Object *)dtar->id;
1145                                 bPoseChannel *target_pchan =
1146                                         BKE_pose_channel_find_name(object->pose,
1147                                                                    dtar->pchan_name);
1148                                 if (target_pchan == NULL) {
1149                                         continue;
1150                                 }
1151                                 OperationKey variable_key(dtar->id,
1152                                                         DEG_NODE_TYPE_BONE,
1153                                                         target_pchan->name,
1154                                                         DEG_OPCODE_BONE_DONE);
1155                                 if (is_same_bone_dependency(variable_key, self_key)) {
1156                                         continue;
1157                                 }
1158                                 add_relation(variable_key, driver_key, "Bone Target -> Driver");
1159                         }
1160                         else if (dtar->flag & DTAR_FLAG_STRUCT_REF) {
1161                                 /* Get node associated with the object's transforms. */
1162                                 if (dtar->id == id) {
1163                                         /* Ignore input dependency if we're driving properties of
1164                                          * the same ID, otherwise we'll be ending up in a cyclic
1165                                          * dependency here.
1166                                          */
1167                                         continue;
1168                                 }
1169                                 OperationKey target_key(dtar->id,
1170                                                         DEG_NODE_TYPE_TRANSFORM,
1171                                                         DEG_OPCODE_TRANSFORM_FINAL);
1172                                 add_relation(target_key, driver_key, "Target -> Driver");
1173                         }
1174                         else if (dtar->rna_path) {
1175                                 RNAPathKey variable_key(dtar->id, dtar->rna_path);
1176                                 if (RNA_pointer_is_null(&variable_key.ptr)) {
1177                                         continue;
1178                                 }
1179                                 if (is_same_bone_dependency(variable_key, self_key)) {
1180                                         continue;
1181                                 }
1182                                 add_relation(variable_key, driver_key, "RNA Bone -> Driver");
1183                         }
1184                         else {
1185                                 if (dtar->id == id) {
1186                                         /* Ignore input dependency if we're driving properties of
1187                                          * the same ID, otherwise we'll be ending up in a cyclic
1188                                          * dependency here.
1189                                          */
1190                                         continue;
1191                                 }
1192                                 /* Resolve path to get node. */
1193                                 RNAPathKey target_key(dtar->id,
1194                                                       dtar->rna_path ? dtar->rna_path : "");
1195                                 add_relation(target_key, driver_key, "RNA Target -> Driver");
1196                         }
1197                 }
1198                 DRIVER_TARGETS_LOOPER_END
1199         }
1200 }
1201
1202 void DepsgraphRelationBuilder::build_world(World *world)
1203 {
1204         ID *world_id = &world->id;
1205         if (world_id->tag & LIB_TAG_DOIT) {
1206                 return;
1207         }
1208         world_id->tag |= LIB_TAG_DOIT;
1209
1210         build_animdata(world_id);
1211
1212         /* TODO: other settings? */
1213
1214         /* textures */
1215         build_texture_stack(world->mtex);
1216
1217         /* world's nodetree */
1218         if (world->nodetree != NULL) {
1219                 build_nodetree(world->nodetree);
1220                 ComponentKey ntree_key(&world->nodetree->id, DEG_NODE_TYPE_PARAMETERS);
1221                 ComponentKey world_key(world_id, DEG_NODE_TYPE_PARAMETERS);
1222                 add_relation(ntree_key, world_key, "NTree->World Parameters");
1223         }
1224 }
1225
1226 void DepsgraphRelationBuilder::build_rigidbody(Scene *scene)
1227 {
1228         RigidBodyWorld *rbw = scene->rigidbody_world;
1229
1230         OperationKey init_key(&scene->id, DEG_NODE_TYPE_TRANSFORM, DEG_OPCODE_RIGIDBODY_REBUILD);
1231         OperationKey sim_key(&scene->id, DEG_NODE_TYPE_TRANSFORM, DEG_OPCODE_RIGIDBODY_SIM);
1232
1233         /* rel between the two sim-nodes */
1234         add_relation(init_key, sim_key, "Rigidbody [Init -> SimStep]");
1235
1236         /* set up dependencies between these operations and other builtin nodes --------------- */
1237
1238         /* time dependency */
1239         TimeSourceKey time_src_key;
1240         add_relation(time_src_key, init_key, "TimeSrc -> Rigidbody Reset/Rebuild (Optional)");
1241
1242         /* objects - simulation participants */
1243         if (rbw->group) {
1244                 LINKLIST_FOREACH (GroupObject *, go, &rbw->group->gobject) {
1245                         Object *object = go->ob;
1246                         if (object == NULL || object->type != OB_MESH) {
1247                                 continue;
1248                         }
1249
1250                         /* hook up evaluation order...
1251                          * 1) flushing rigidbody results follows base transforms being applied
1252                          * 2) rigidbody flushing can only be performed after simulation has been run
1253                          *
1254                          * 3) simulation needs to know base transforms to figure out what to do
1255                          *    XXX: there's probably a difference between passive and active
1256                          *         - passive don't change, so may need to know full transform...
1257                          */
1258                         OperationKey rbo_key(&object->id, DEG_NODE_TYPE_TRANSFORM, DEG_OPCODE_RIGIDBODY_TRANSFORM_COPY);
1259
1260                         eDepsOperation_Code trans_opcode = object->parent ? DEG_OPCODE_TRANSFORM_PARENT : DEG_OPCODE_TRANSFORM_LOCAL;
1261                         OperationKey trans_op(&object->id, DEG_NODE_TYPE_TRANSFORM, trans_opcode);
1262
1263                         add_relation(sim_key, rbo_key, "Rigidbody Sim Eval -> RBO Sync");
1264
1265                         /* if constraints exist, those depend on the result of the rigidbody sim
1266                          * - This allows constraints to modify the result of the sim (i.e. clamping)
1267                          *   while still allowing the sim to depend on some changes to the objects.
1268                          *   Also, since constraints are hooked up to the final nodes, this link
1269                          *   means that we can also fit in there too...
1270                          * - Later, it might be good to include a constraint in the stack allowing us
1271                          *   to control whether rigidbody eval gets interleaved into the constraint stack
1272                          */
1273                         if (object->constraints.first) {
1274                                 OperationKey constraint_key(&object->id,
1275                                                             DEG_NODE_TYPE_TRANSFORM,
1276                                                             DEG_OPCODE_TRANSFORM_CONSTRAINTS);
1277                                 add_relation(rbo_key, constraint_key, "RBO Sync -> Ob Constraints");
1278                         }
1279                         else {
1280                                 /* Final object transform depends on rigidbody.
1281                                  *
1282                                  * NOTE: Currently we consider final here an ubereval node.
1283                                  * If it is gone we'll need to reconsider relation here.
1284                                  */
1285                                 OperationKey uber_key(&object->id,
1286                                                       DEG_NODE_TYPE_TRANSFORM,
1287                                                       DEG_OPCODE_TRANSFORM_OBJECT_UBEREVAL);
1288                                 add_relation(rbo_key, uber_key, "RBO Sync -> Uber (Temp)");
1289                         }
1290
1291                         /* Needed to get correct base values. */
1292                         add_relation(trans_op, sim_key, "Base Ob Transform -> Rigidbody Sim Eval");
1293                 }
1294         }
1295
1296         /* constraints */
1297         if (rbw->constraints) {
1298                 LINKLIST_FOREACH (GroupObject *, go, &rbw->constraints->gobject) {
1299                         Object *object = go->ob;
1300                         if (object == NULL || !object->rigidbody_constraint) {
1301                                 continue;
1302                         }
1303
1304                         RigidBodyCon *rbc = object->rigidbody_constraint;
1305
1306                         /* final result of the constraint object's transform controls how the
1307                          * constraint affects the physics sim for these objects
1308                          */
1309                         ComponentKey trans_key(&object->id, DEG_NODE_TYPE_TRANSFORM);
1310                         OperationKey ob1_key(&rbc->ob1->id, DEG_NODE_TYPE_TRANSFORM, DEG_OPCODE_RIGIDBODY_TRANSFORM_COPY);
1311                         OperationKey ob2_key(&rbc->ob2->id, DEG_NODE_TYPE_TRANSFORM, DEG_OPCODE_RIGIDBODY_TRANSFORM_COPY);
1312
1313                         /* - constrained-objects sync depends on the constraint-holder */
1314                         add_relation(trans_key, ob1_key, "RigidBodyConstraint -> RBC.Object_1");
1315                         add_relation(trans_key, ob2_key, "RigidBodyConstraint -> RBC.Object_2");
1316
1317                         /* - ensure that sim depends on this constraint's transform */
1318                         add_relation(trans_key, sim_key, "RigidBodyConstraint Transform -> RB Simulation");
1319                 }
1320         }
1321 }
1322
1323 void DepsgraphRelationBuilder::build_particles(Object *object)
1324 {
1325         TimeSourceKey time_src_key;
1326         OperationKey obdata_ubereval_key(&object->id,
1327                                          DEG_NODE_TYPE_GEOMETRY,
1328                                          DEG_OPCODE_GEOMETRY_UBEREVAL);
1329         OperationKey eval_init_key(&object->id,
1330                                    DEG_NODE_TYPE_EVAL_PARTICLES,
1331                                    DEG_OPCODE_PARTICLE_SYSTEM_EVAL_INIT);
1332         if (object_particles_depends_on_time(object)) {
1333                 add_relation(time_src_key, eval_init_key, "TimeSrc -> PSys");
1334         }
1335
1336         /* particle systems */
1337         LINKLIST_FOREACH (ParticleSystem *, psys, &object->particlesystem) {
1338                 ParticleSettings *part = psys->part;
1339
1340                 /* particle settings */
1341                 build_animdata(&part->id);
1342
1343                 /* this particle system */
1344                 OperationKey psys_key(&object->id, DEG_NODE_TYPE_EVAL_PARTICLES, DEG_OPCODE_PARTICLE_SYSTEM_EVAL, psys->name);
1345
1346                 /* XXX: if particle system is later re-enabled, we must do full rebuild? */
1347                 if (!psys_check_enabled(object, psys, G.is_rendering))
1348                         continue;
1349
1350                 add_relation(eval_init_key, psys_key, "Init -> PSys");
1351
1352                 /* TODO(sergey): Currently particle update is just a placeholder,
1353                  * hook it to the ubereval node so particle system is getting updated
1354                  * on playback.
1355                  */
1356                 add_relation(psys_key, obdata_ubereval_key, "PSys -> UberEval");
1357
1358                 /* collisions */
1359                 if (part->type != PART_HAIR) {
1360                         add_collision_relations(psys_key, scene_, object, part->collision_group, object->lay, true, "Particle Collision");
1361                 }
1362                 else if ((psys->flag & PSYS_HAIR_DYNAMICS) && psys->clmd && psys->clmd->coll_parms) {
1363                         add_collision_relations(psys_key, scene_, object, psys->clmd->coll_parms->group, object->lay | scene_->lay, true, "Hair Collision");
1364                 }
1365
1366                 /* effectors */
1367                 add_forcefield_relations(psys_key, scene_, object, psys, part->effector_weights, part->type == PART_HAIR, "Particle Field");
1368
1369                 /* boids */
1370                 if (part->boids) {
1371                         LINKLIST_FOREACH (BoidState *, state, &part->boids->states) {
1372                                 LINKLIST_FOREACH (BoidRule *, rule, &state->rules) {
1373                                         Object *ruleob = NULL;
1374                                         if (rule->type == eBoidRuleType_Avoid)
1375                                                 ruleob = ((BoidRuleGoalAvoid *)rule)->ob;
1376                                         else if (rule->type == eBoidRuleType_FollowLeader)
1377                                                 ruleob = ((BoidRuleFollowLeader *)rule)->ob;
1378
1379                                         if (ruleob) {
1380                                                 ComponentKey ruleob_key(&ruleob->id, DEG_NODE_TYPE_TRANSFORM);
1381                                                 add_relation(ruleob_key, psys_key, "Boid Rule");
1382                                         }
1383                                 }
1384                         }
1385                 }
1386
1387                 if (part->ren_as == PART_DRAW_OB && part->dup_ob) {
1388                         ComponentKey dup_ob_key(&part->dup_ob->id, DEG_NODE_TYPE_TRANSFORM);
1389                         add_relation(dup_ob_key, psys_key, "Particle Object Visualization");
1390                 }
1391         }
1392
1393         /* Particle depends on the object transform, so that channel is to be ready
1394          * first.
1395          *
1396          * TODO(sergey): This relation should be altered once real granular update
1397          * is implemented.
1398          */
1399         ComponentKey transform_key(&object->id, DEG_NODE_TYPE_TRANSFORM);
1400         add_relation(transform_key, obdata_ubereval_key, "Partcile Eval");
1401
1402         /* pointcache */
1403         // TODO...
1404 }
1405
1406 void DepsgraphRelationBuilder::build_cloth(Object *object,
1407                                            ModifierData * /*md*/)
1408 {
1409         OperationKey cache_key(&object->id,
1410                                DEG_NODE_TYPE_CACHE,
1411                                DEG_OPCODE_GEOMETRY_CLOTH_MODIFIER);
1412         /* Cache component affects on modifier. */
1413         OperationKey modifier_key(&object->id,
1414                                   DEG_NODE_TYPE_GEOMETRY,
1415                                   DEG_OPCODE_GEOMETRY_UBEREVAL);
1416         add_relation(cache_key, modifier_key, "Cloth Cache -> Cloth");
1417 }
1418
1419 /* Shapekeys */
1420 void DepsgraphRelationBuilder::build_shapekeys(ID *obdata, Key *key)
1421 {
1422         ComponentKey obdata_key(obdata, DEG_NODE_TYPE_GEOMETRY);
1423
1424         /* attach animdata to geometry */
1425         build_animdata(&key->id);
1426
1427         if (key->adt) {
1428                 // TODO: this should really be handled in build_animdata, since many of these cases will need it
1429                 if (key->adt->action || key->adt->nla_tracks.first) {
1430                         ComponentKey adt_key(&key->id, DEG_NODE_TYPE_ANIMATION);
1431                         add_relation(adt_key, obdata_key, "Animation");
1432                 }
1433
1434                 /* NOTE: individual shapekey drivers are handled above already */
1435         }
1436
1437         /* attach to geometry */
1438         // XXX: aren't shapekeys now done as a pseudo-modifier on object?
1439         //ComponentKey key_key(&key->id, DEG_NODE_TYPE_GEOMETRY); // FIXME: this doesn't exist
1440         //add_relation(key_key, obdata_key, "Shapekeys");
1441 }
1442
1443 /**
1444  * ObData Geometry Evaluation
1445  * ==========================
1446  *
1447  * The evaluation of geometry on objects is as follows:
1448  * - The actual evaluated of the derived geometry (e.g. DerivedMesh, DispList, etc.)
1449  *   occurs in the Geometry component of the object which references this. This includes
1450  *   modifiers, and the temporary "ubereval" for geometry.
1451  * - Therefore, each user of a piece of shared geometry data ends up evaluating its own
1452  *   version of the stuff, complete with whatever modifiers it may use.
1453  *
1454  * - The datablocks for the geometry data - "obdata" (e.g. ID_ME, ID_CU, ID_LT, etc.) are used for
1455  *     1) calculating the bounding boxes of the geometry data,
1456  *     2) aggregating inward links from other objects (e.g. for text on curve, etc.)
1457  *        and also for the links coming from the shapekey datablocks
1458  * - Animation/Drivers affecting the parameters of the geometry are made to trigger
1459  *   updates on the obdata geometry component, which then trigger downstream
1460  *   re-evaluation of the individual instances of this geometry.
1461  */
1462 // TODO: Materials and lighting should probably get their own component, instead of being lumped under geometry?
1463 void DepsgraphRelationBuilder::build_obdata_geom(Object *object)
1464 {
1465         ID *obdata = (ID *)object->data;
1466
1467         /* Init operation of object-level geometry evaluation. */
1468         OperationKey geom_init_key(&object->id, DEG_NODE_TYPE_GEOMETRY, DEG_OPCODE_PLACEHOLDER, "Eval Init");
1469
1470         /* get nodes for result of obdata's evaluation, and geometry evaluation on object */
1471         ComponentKey obdata_geom_key(obdata, DEG_NODE_TYPE_GEOMETRY);
1472         ComponentKey geom_key(&object->id, DEG_NODE_TYPE_GEOMETRY);
1473
1474         /* link components to each other */
1475         add_relation(obdata_geom_key, geom_key, "Object Geometry Base Data");
1476
1477         /* Modifiers */
1478         if (object->modifiers.first != NULL) {
1479                 OperationKey obdata_ubereval_key(&object->id,
1480                                                  DEG_NODE_TYPE_GEOMETRY,
1481                                                  DEG_OPCODE_GEOMETRY_UBEREVAL);
1482
1483                 LINKLIST_FOREACH (ModifierData *, md, &object->modifiers) {
1484                         const ModifierTypeInfo *mti = modifierType_getInfo((ModifierType)md->type);
1485                         if (mti->updateDepsgraph) {
1486                                 DepsNodeHandle handle = create_node_handle(obdata_ubereval_key);
1487                                 mti->updateDepsgraph(
1488                                         md,
1489                                         bmain_,
1490                                         scene_,
1491                                         object,
1492                                         reinterpret_cast< ::DepsNodeHandle* >(&handle));
1493                         }
1494                         if (BKE_object_modifier_use_time(object, md)) {
1495                                 TimeSourceKey time_src_key;
1496                                 add_relation(time_src_key, obdata_ubereval_key, "Time Source");
1497                         }
1498                         if (md->type == eModifierType_Cloth) {
1499                                 build_cloth(object, md);
1500                         }
1501                 }
1502         }
1503
1504         /* materials */
1505         if (object->totcol) {
1506                 for (int a = 1; a <= object->totcol; a++) {
1507                         Material *ma = give_current_material(object, a);
1508                         if (ma != NULL) {
1509                                 build_material(ma);
1510                         }
1511                 }
1512         }
1513
1514         /* geometry collision */
1515         if (ELEM(object->type, OB_MESH, OB_CURVE, OB_LATTICE)) {
1516                 // add geometry collider relations
1517         }
1518
1519         /* Make sure uber update is the last in the dependencies.
1520          *
1521          * TODO(sergey): Get rid of this node.
1522          */
1523         if (object->type != OB_ARMATURE) {
1524                 /* Armatures does no longer require uber node. */
1525                 OperationKey obdata_ubereval_key(&object->id, DEG_NODE_TYPE_GEOMETRY, DEG_OPCODE_GEOMETRY_UBEREVAL);
1526                 add_relation(geom_init_key, obdata_ubereval_key, "Object Geometry UberEval");
1527         }
1528
1529         if (obdata->tag & LIB_TAG_DOIT) {
1530                 return;
1531         }
1532         obdata->tag |= LIB_TAG_DOIT;
1533
1534         /* Link object data evaluation node to exit operation. */
1535         OperationKey obdata_geom_eval_key(obdata, DEG_NODE_TYPE_GEOMETRY, DEG_OPCODE_PLACEHOLDER, "Geometry Eval");
1536         OperationKey obdata_geom_done_key(obdata, DEG_NODE_TYPE_GEOMETRY, DEG_OPCODE_PLACEHOLDER, "Eval Done");
1537         add_relation(obdata_geom_eval_key, obdata_geom_done_key, "ObData Geom Eval Done");
1538
1539         /* type-specific node/links */
1540         switch (object->type) {
1541                 case OB_MESH:
1542                         /* NOTE: This is compatibility code to support particle systems
1543                          *
1544                          * for viewport being properly rendered in final render mode.
1545                          * This relation is similar to what dag_object_time_update_flags()
1546                          * was doing for mesh objects with particle system.
1547                          *
1548                          * Ideally we need to get rid of this relation.
1549                          */
1550                         if (object_particles_depends_on_time(object)) {
1551                                 TimeSourceKey time_key;
1552                                 OperationKey obdata_ubereval_key(&object->id,
1553                                                                  DEG_NODE_TYPE_GEOMETRY,
1554                                                                  DEG_OPCODE_GEOMETRY_UBEREVAL);
1555                                 add_relation(time_key, obdata_ubereval_key, "Legacy particle time");
1556                         }
1557                         break;
1558
1559                 case OB_MBALL:
1560                 {
1561                         Object *mom = BKE_mball_basis_find(scene_, object);
1562                         ComponentKey mom_geom_key(&mom->id, DEG_NODE_TYPE_GEOMETRY);
1563                         /* motherball - mom depends on children! */
1564                         if (mom == object) {
1565                                 ComponentKey mom_transform_key(&mom->id,
1566                                                                DEG_NODE_TYPE_TRANSFORM);
1567                                 add_relation(mom_transform_key,
1568                                              mom_geom_key,
1569                                              "Metaball Motherball Transform -> Geometry");
1570                         }
1571                         else {
1572                                 ComponentKey transform_key(&object->id, DEG_NODE_TYPE_TRANSFORM);
1573                                 add_relation(geom_key, mom_geom_key, "Metaball Motherball");
1574                                 add_relation(transform_key, mom_geom_key, "Metaball Motherball");
1575                         }
1576                         break;
1577                 }
1578
1579                 case OB_CURVE:
1580                 case OB_FONT:
1581                 {
1582                         Curve *cu = (Curve *)obdata;
1583
1584                         /* curve's dependencies */
1585                         // XXX: these needs geom data, but where is geom stored?
1586                         if (cu->bevobj) {
1587                                 ComponentKey bevob_key(&cu->bevobj->id, DEG_NODE_TYPE_GEOMETRY);
1588                                 build_object(cu->bevobj);
1589                                 add_relation(bevob_key, geom_key, "Curve Bevel");
1590                         }
1591                         if (cu->taperobj) {
1592                                 ComponentKey taperob_key(&cu->taperobj->id, DEG_NODE_TYPE_GEOMETRY);
1593                                 build_object(cu->taperobj);
1594                                 add_relation(taperob_key, geom_key, "Curve Taper");
1595                         }
1596                         if (object->type == OB_FONT) {
1597                                 if (cu->textoncurve) {
1598                                         ComponentKey textoncurve_key(&cu->textoncurve->id, DEG_NODE_TYPE_GEOMETRY);
1599                                         build_object(cu->textoncurve);
1600                                         add_relation(textoncurve_key, geom_key, "Text on Curve");
1601                                 }
1602                         }
1603                         break;
1604                 }
1605
1606                 case OB_SURF: /* Nurbs Surface */
1607                 {
1608                         break;
1609                 }
1610
1611                 case OB_LATTICE: /* Lattice */
1612                 {
1613                         break;
1614                 }
1615         }
1616
1617         /* ShapeKeys */
1618         Key *key = BKE_key_from_object(object);
1619         if (key) {
1620                 build_shapekeys(obdata, key);
1621         }
1622 }
1623
1624 /* Cameras */
1625 // TODO: Link scene-camera links in somehow...
1626 void DepsgraphRelationBuilder::build_camera(Object *object)
1627 {
1628         Camera *cam = (Camera *)object->data;
1629         ID *camera_id = &cam->id;
1630         if (camera_id->tag & LIB_TAG_DOIT) {
1631                 return;
1632         }
1633         camera_id->tag |= LIB_TAG_DOIT;
1634         /* DOF */
1635         if (cam->dof_ob) {
1636                 ComponentKey ob_param_key(&object->id, DEG_NODE_TYPE_PARAMETERS);
1637                 ComponentKey dof_ob_key(&cam->dof_ob->id, DEG_NODE_TYPE_TRANSFORM);
1638                 add_relation(dof_ob_key, ob_param_key, "Camera DOF");
1639         }
1640 }
1641
1642 /* Lamps */
1643 void DepsgraphRelationBuilder::build_lamp(Object *object)
1644 {
1645         Lamp *la = (Lamp *)object->data;
1646         ID *lamp_id = &la->id;
1647         if (lamp_id->tag & LIB_TAG_DOIT) {
1648                 return;
1649         }
1650         lamp_id->tag |= LIB_TAG_DOIT;
1651         /* lamp's nodetree */
1652         if (la->nodetree != NULL) {
1653                 build_nodetree(la->nodetree);
1654                 ComponentKey parameters_key(lamp_id, DEG_NODE_TYPE_PARAMETERS);
1655                 ComponentKey nodetree_key(&la->nodetree->id, DEG_NODE_TYPE_PARAMETERS);
1656                 add_relation(nodetree_key, parameters_key, "NTree->Lamp Parameters");
1657         }
1658         /* textures */
1659         build_texture_stack(la->mtex);
1660 }
1661
1662 void DepsgraphRelationBuilder::build_nodetree(bNodeTree *ntree)
1663 {
1664         if (!ntree)
1665                 return;
1666
1667         ID *ntree_id = &ntree->id;
1668
1669         build_animdata(ntree_id);
1670
1671         OperationKey parameters_key(ntree_id,
1672                                     DEG_NODE_TYPE_PARAMETERS,
1673                                     DEG_OPCODE_PARAMETERS_EVAL);
1674
1675         /* nodetree's nodes... */
1676         LINKLIST_FOREACH (bNode *, bnode, &ntree->nodes) {
1677                 ID *id = bnode->id;
1678                 if (id == NULL) {
1679                         continue;
1680                 }
1681                 ID_Type id_type = GS(id->name);
1682                 if (id_type == ID_MA) {
1683                         build_material((Material *)bnode->id);
1684                 }
1685                 else if (id_type == ID_TE) {
1686                         build_texture((Tex *)bnode->id);
1687                 }
1688                 else if (id_type == ID_IM) {
1689                         /* nothing for now. */
1690                 }
1691                 else if (id_type == ID_OB) {
1692                         build_object((Object *)id);
1693                 }
1694                 else if (id_type == ID_SCE) {
1695                         /* Scenes are used by compositor trees, and handled by render
1696                          * pipeline. No need to build dependencies for them here.
1697                          */
1698                 }
1699                 else if (id_type == ID_TXT) {
1700                         /* Ignore script nodes. */
1701                 }
1702                 else if (bnode->type == NODE_GROUP) {
1703                         bNodeTree *group_ntree = (bNodeTree *)id;
1704                         if ((group_ntree->id.tag & LIB_TAG_DOIT) == 0) {
1705                                 build_nodetree(group_ntree);
1706                                 group_ntree->id.tag |= LIB_TAG_DOIT;
1707                         }
1708                         OperationKey group_parameters_key(&group_ntree->id,
1709                                                           DEG_NODE_TYPE_PARAMETERS,
1710                                                           DEG_OPCODE_PARAMETERS_EVAL);
1711                         add_relation(group_parameters_key, parameters_key, "Group Node");
1712                 }
1713                 else {
1714                         BLI_assert(!"Unknown ID type used for node");
1715                 }
1716         }
1717 }
1718
1719 /* Recursively build graph for material */
1720 void DepsgraphRelationBuilder::build_material(Material *ma)
1721 {
1722         ID *ma_id = &ma->id;
1723         if (ma_id->tag & LIB_TAG_DOIT) {
1724                 return;
1725         }
1726         ma_id->tag |= LIB_TAG_DOIT;
1727
1728         /* animation */
1729         build_animdata(ma_id);
1730
1731         /* textures */
1732         build_texture_stack(ma->mtex);
1733
1734         /* material's nodetree */
1735         if (ma->nodetree != NULL) {
1736                 build_nodetree(ma->nodetree);
1737                 OperationKey ntree_key(&ma->nodetree->id,
1738                                        DEG_NODE_TYPE_PARAMETERS,
1739                                        DEG_OPCODE_PARAMETERS_EVAL);
1740                 OperationKey material_key(&ma->id,
1741                                           DEG_NODE_TYPE_SHADING,
1742                                           DEG_OPCODE_PLACEHOLDER,
1743                                           "Material Update");
1744                 add_relation(ntree_key, material_key, "Material's NTree");
1745         }
1746 }
1747
1748 /* Recursively build graph for texture */
1749 void DepsgraphRelationBuilder::build_texture(Tex *tex)
1750 {
1751         ID *tex_id = &tex->id;
1752         if (tex_id->tag & LIB_TAG_DOIT) {
1753                 return;
1754         }
1755         tex_id->tag |= LIB_TAG_DOIT;
1756
1757         /* texture itself */
1758         build_animdata(tex_id);
1759
1760         /* texture's nodetree */
1761         build_nodetree(tex->nodetree);
1762 }
1763
1764 /* Texture-stack attached to some shading datablock */
1765 void DepsgraphRelationBuilder::build_texture_stack(MTex **texture_stack)
1766 {
1767         int i;
1768
1769         /* for now assume that all texture-stacks have same number of max items */
1770         for (i = 0; i < MAX_MTEX; i++) {
1771                 MTex *mtex = texture_stack[i];
1772                 if (mtex && mtex->tex)
1773                         build_texture(mtex->tex);
1774         }
1775 }
1776
1777 void DepsgraphRelationBuilder::build_compositor(Scene *scene)
1778 {
1779         /* For now, just a plain wrapper? */
1780         build_nodetree(scene->nodetree);
1781 }
1782
1783 void DepsgraphRelationBuilder::build_gpencil(bGPdata *gpd)
1784 {
1785         /* animation */
1786         build_animdata(&gpd->id);
1787
1788         // TODO: parent object (when that feature is implemented)
1789 }
1790
1791 void DepsgraphRelationBuilder::build_cachefile(CacheFile *cache_file) {
1792         /* Animation. */
1793         build_animdata(&cache_file->id);
1794 }
1795
1796 void DepsgraphRelationBuilder::build_mask(Mask *mask)
1797 {
1798         ID *mask_id = &mask->id;
1799         /* F-Curve animation. */
1800         build_animdata(mask_id);
1801         /* Own mask animation. */
1802         OperationKey mask_animation_key(mask_id,
1803                                         DEG_NODE_TYPE_ANIMATION,
1804                                         DEG_OPCODE_MASK_ANIMATION);
1805         TimeSourceKey time_src_key;
1806         add_relation(time_src_key, mask_animation_key, "TimeSrc -> Mask Animation");
1807         /* Final mask evaluation. */
1808         ComponentKey parameters_key(mask_id, DEG_NODE_TYPE_PARAMETERS);
1809         add_relation(mask_animation_key, parameters_key, "Mask Animation -> Mask Eval");
1810 }
1811
1812 void DepsgraphRelationBuilder::build_movieclip(MovieClip *clip)
1813 {
1814         /* Animation. */
1815         build_animdata(&clip->id);
1816 }
1817
1818 }  // namespace DEG