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_tracking.h"
  92 #include "BKE_world.h"
  93
  94 #include "RNA_access.h"
  95 #include "RNA_types.h"
  96 } /* extern "C" */
  97
  98 #include "DEG_depsgraph.h"
  99 #include "DEG_depsgraph_build.h"
 100
 101 #include "intern/builder/deg_builder.h"
 102 #include "intern/builder/deg_builder_pchanmap.h"
 103
 104 #include "intern/nodes/deg_node.h"
 105 #include "intern/nodes/deg_node_component.h"
 106 #include "intern/nodes/deg_node_id.h"
 107 #include "intern/nodes/deg_node_operation.h"
 108 #include "intern/nodes/deg_node_time.h"
 109
 110 #include "intern/depsgraph_intern.h"
 111 #include "intern/depsgraph_types.h"
 112
 113 #include "util/deg_util_foreach.h"
 114
 115 namespace DEG {
 116
 117 namespace {
 118
 119 struct BuilderWalkUserData {
 120         DepsgraphRelationBuilder *builder;
 121 };
 122
 123 void modifier_walk(void *user_data,
 124                    struct Object * /*object*/,
 125                    struct Object **obpoin,
 126                    int /*cb_flag*/)
 127 {
 128         BuilderWalkUserData *data = (BuilderWalkUserData *)user_data;
 129         if (*obpoin) {
 130                 data->builder->build_object(*obpoin);
 131         }
 132 }
 133
 134 void constraint_walk(bConstraint * /*con*/,
 135                      ID **idpoin,
 136                      bool /*is_reference*/,
 137                      void *user_data)
 138 {
 139         BuilderWalkUserData *data = (BuilderWalkUserData *)user_data;
 140         if (*idpoin) {
 141                 ID *id = *idpoin;
 142                 if (GS(id->name) == ID_OB) {
 143                         data->builder->build_object((Object *)id);
 144                 }
 145         }
 146 }
 147
 148 }  /* namespace */
 149
 150 /* ***************** */
 151 /* Relations Builder */
 152
 153 /* TODO(sergey): This is somewhat weak, but we don't want neither false-positive
 154  * time dependencies nor special exceptions in the depsgraph evaluation.
 155  */
 156 static bool python_driver_depends_on_time(ChannelDriver *driver)
 157 {
 158         if (driver->expression[0] == '\0') {
 159                 /* Empty expression depends on nothing. */
 160                 return false;
 161         }
 162         if (strchr(driver->expression, '(') != NULL) {
 163                 /* Function calls are considered dependent on a time. */
 164                 return true;
 165         }
 166         if (strstr(driver->expression, "frame") != NULL) {
 167                 /* Variable `frame` depends on time. */
 168                 /* TODO(sergey): This is a bit weak, but not sure about better way of
 169                  * handling this.
 170                  */
 171                 return true;
 172         }
 173         /* Possible indirect time relation s should be handled via variable
 174          * targets.
 175          */
 176         return false;
 177 }
 178
 179 static bool particle_system_depends_on_time(ParticleSystem *psys)
 180 {
 181         ParticleSettings *part = psys->part;
 182         /* Non-hair particles we always consider dependent on time. */
 183         if (part->type != PART_HAIR) {
 184                 return true;
 185         }
 186         /* Dynamics always depends on time. */
 187         if (psys->flag & PSYS_HAIR_DYNAMICS) {
 188                 return true;
 189         }
 190         /* TODO(sergey): Check what else makes hair dependent on time. */
 191         return false;
 192 }
 193
 194 static bool object_particles_depends_on_time(Object *object)
 195 {
 196         return true;
 197         BLI_LISTBASE_FOREACH (ParticleSystem *, psys, &object->particlesystem) {
 198                 if (particle_system_depends_on_time(psys)) {
 199                         return true;
 200                 }
 201         }
 202         return false;
 203 }
 204
 205 /* **** General purpose functions ****  */
 206
 207 DepsgraphRelationBuilder::DepsgraphRelationBuilder(Main *bmain,
 208                                                    Depsgraph *graph)
 209     : bmain_(bmain),
 210       graph_(graph),
 211       scene_(NULL)
 212 {
 213 }
 214
 215 TimeSourceDepsNode *DepsgraphRelationBuilder::get_node(
 216         const TimeSourceKey &key) const
 217 {
 218         if (key.id) {
 219                 /* XXX TODO */
 220                 return NULL;
 221         }
 222         else {
 223                 return graph_->time_source;
 224         }
 225 }
 226
 227 ComponentDepsNode *DepsgraphRelationBuilder::get_node(
 228         const ComponentKey &key) const
 229 {
 230         IDDepsNode *id_node = graph_->find_id_node(key.id);
 231         if (!id_node) {
 232                 fprintf(stderr, "find_node component: Could not find ID %s\n",
 233                         (key.id != NULL) ? key.id->name : "<null>");
 234                 return NULL;
 235         }
 236
 237         ComponentDepsNode *node = id_node->find_component(key.type, key.name);
 238         return node;
 239 }
 240
 241 OperationDepsNode *DepsgraphRelationBuilder::get_node(
 242         const OperationKey &key) const
 243 {
 244         OperationDepsNode *op_node = find_node(key);
 245         if (op_node == NULL) {
 246                 fprintf(stderr, "find_node_operation: Failed for (%s, '%s')\n",
 247                         DEG_OPNAMES[key.opcode], key.name);
 248         }
 249         return op_node;
 250 }
 251
 252 DepsNode *DepsgraphRelationBuilder::get_node(const RNAPathKey &key) const
 253 {
 254         return graph_->find_node_from_pointer(&key.ptr, key.prop);
 255 }
 256
 257 OperationDepsNode *DepsgraphRelationBuilder::find_node(
 258         const OperationKey &key) const
 259 {
 260         IDDepsNode *id_node = graph_->find_id_node(key.id);
 261         if (!id_node) {
 262                 return NULL;
 263         }
 264         ComponentDepsNode *comp_node = id_node->find_component(key.component_type,
 265                                                                key.component_name);
 266         if (!comp_node) {
 267                 return NULL;
 268         }
 269         return comp_node->find_operation(key.opcode, key.name, key.name_tag);
 270 }
 271
 272 bool DepsgraphRelationBuilder::has_node(const OperationKey &key) const
 273 {
 274         return find_node(key) != NULL;
 275 }
 276
 277 void DepsgraphRelationBuilder::add_time_relation(TimeSourceDepsNode *timesrc,
 278                                                  DepsNode *node_to,
 279                                                  const char *description,
 280                                                  bool check_unique)
 281 {
 282         if (timesrc && node_to) {
 283                 graph_->add_new_relation(timesrc, node_to, description, check_unique);
 284         }
 285         else {
 286                 DEG_DEBUG_PRINTF("add_time_relation(%p = %s, %p = %s, %s) Failed\n",
 287                                  timesrc,   (timesrc) ? timesrc->identifier().c_str() : "<None>",
 288                                  node_to,   (node_to) ? node_to->identifier().c_str() : "<None>",
 289                                  description);
 290         }
 291 }
 292
 293 void DepsgraphRelationBuilder::add_operation_relation(
 294         OperationDepsNode *node_from,
 295         OperationDepsNode *node_to,
 296         const char *description,
 297         bool check_unique)
 298 {
 299         if (node_from && node_to) {
 300                 graph_->add_new_relation(node_from, node_to, description, check_unique);
 301         }
 302         else {
 303                 DEG_DEBUG_PRINTF("add_operation_relation(%p = %s, %p = %s, %s) Failed\n",
 304                                  node_from, (node_from) ? node_from->identifier().c_str() : "<None>",
 305                                  node_to,   (node_to)   ? node_to->identifier().c_str() : "<None>",
 306                                  description);
 307         }
 308 }
 309
 310 void DepsgraphRelationBuilder::add_collision_relations(
 311         const OperationKey &key,
 312         Scene *scene,
 313         Object *object,
 314         Group *group,
 315         int layer,
 316         bool dupli,
 317         const char *name)
 318 {
 319         unsigned int numcollobj;
 320         Object **collobjs = get_collisionobjects_ext(
 321                 scene,
 322                 object,
 323                 group,
 324                 layer,
 325                 &numcollobj,
 326                 eModifierType_Collision,
 327                 dupli);
 328         for (unsigned int i = 0; i < numcollobj; i++) {
 329                 Object *ob1 = collobjs[i];
 330
 331                 ComponentKey trf_key(&ob1->id, DEG_NODE_TYPE_TRANSFORM);
 332                 add_relation(trf_key, key, name);
 333
 334                 ComponentKey coll_key(&ob1->id, DEG_NODE_TYPE_GEOMETRY);
 335                 add_relation(coll_key, key, name);
 336         }
 337         if (collobjs != NULL) {
 338                 MEM_freeN(collobjs);
 339         }
 340 }
 341
 342 void DepsgraphRelationBuilder::add_forcefield_relations(
 343         const OperationKey &key,
 344         Scene *scene,
 345         Object *object,
 346         ParticleSystem *psys,
 347         EffectorWeights *eff,
 348         bool add_absorption,
 349         const char *name)
 350 {
 351         ListBase *effectors = pdInitEffectors(scene, object, psys, eff, false);
 352         if (effectors != NULL) {
 353                 BLI_LISTBASE_FOREACH(EffectorCache *, eff, effectors) {
 354                         if (eff->ob != object) {
 355                                 ComponentKey eff_key(&eff->ob->id, DEG_NODE_TYPE_TRANSFORM);
 356                                 add_relation(eff_key, key, name);
 357                         }
 358                         if (eff->psys != NULL) {
 359                                 if (eff->ob != object) {
 360                                         ComponentKey eff_key(&eff->ob->id, DEG_NODE_TYPE_EVAL_PARTICLES);
 361                                         add_relation(eff_key, key, name);
 362
 363                                         /* TODO: remove this when/if EVAL_PARTICLES is sufficient
 364                                          * for up to date particles.
 365                                          */
 366                                         ComponentKey mod_key(&eff->ob->id, DEG_NODE_TYPE_GEOMETRY);
 367                                         add_relation(mod_key, key, name);
 368                                 }
 369                                 else if (eff->psys != psys) {
 370                                         OperationKey eff_key(&eff->ob->id,
 371                                                              DEG_NODE_TYPE_EVAL_PARTICLES,
 372                                                              DEG_OPCODE_PARTICLE_SYSTEM_EVAL,
 373                                                              eff->psys->name);
 374                                         add_relation(eff_key, key, name);
 375                                 }
 376                         }
 377                         if (eff->pd->forcefield == PFIELD_SMOKEFLOW && eff->pd->f_source) {
 378                                 ComponentKey trf_key(&eff->pd->f_source->id,
 379                                                      DEG_NODE_TYPE_TRANSFORM);
 380                                 add_relation(trf_key, key, "Smoke Force Domain");
 381
 382                                 ComponentKey eff_key(&eff->pd->f_source->id,
 383                                                      DEG_NODE_TYPE_GEOMETRY);
 384                                 add_relation(eff_key, key, "Smoke Force Domain");
 385                         }
 386                         if (add_absorption && (eff->pd->flag & PFIELD_VISIBILITY)) {
 387                                 add_collision_relations(key,
 388                                                         scene,
 389                                                         object,
 390                                                         NULL,
 391                                                         eff->ob->lay,
 392                                                         true,
 393                                                         "Force Absorption");
 394                         }
 395                 }
 396         }
 397
 398         pdEndEffectors(&effectors);
 399 }
 400
 401 Depsgraph *DepsgraphRelationBuilder::getGraph()
 402 {
 403         return graph_;
 404 }
 405
 406 /* **** Functions to build relations between entities  **** */
 407
 408 void DepsgraphRelationBuilder::begin_build()
 409 {
 410         /* LIB_TAG_DOIT is used to indicate whether node for given ID was already
 411          * created or not.
 412          */
 413         BKE_main_id_tag_all(bmain_, LIB_TAG_DOIT, false);
 414         /* XXX nested node trees are notr included in tag-clearing above,
 415          * so we need to do this manually.
 416          */
 417         FOREACH_NODETREE(bmain_, nodetree, id)
 418         {
 419                 if (id != (ID *)nodetree) {
 420                         nodetree->id.tag &= ~LIB_TAG_DOIT;
 421                 }
 422         }
 423         FOREACH_NODETREE_END;
 424 }
 425
 426 void DepsgraphRelationBuilder::build_group(Object *object, Group *group)
 427 {
 428         ID *group_id = &group->id;
 429         bool group_done = (group_id->tag & LIB_TAG_DOIT) != 0;
 430         OperationKey object_local_transform_key(object != NULL ? &object->id : NULL,
 431                                                 DEG_NODE_TYPE_TRANSFORM,
 432                                                 DEG_OPCODE_TRANSFORM_LOCAL);
 433         BLI_LISTBASE_FOREACH (GroupObject *, go, &group->gobject) {
 434                 if (!group_done) {
 435                         build_object(go->ob);
 436                 }
 437                 if (object != NULL) {
 438                         ComponentKey dupli_transform_key(&go->ob->id, DEG_NODE_TYPE_TRANSFORM);
 439                         add_relation(dupli_transform_key, object_local_transform_key, "Dupligroup");
 440                 }
 441         }
 442         group_id->tag |= LIB_TAG_DOIT;
 443 }
 444
 445 void DepsgraphRelationBuilder::build_object(Object *object)
 446 {
 447         if (object->id.tag & LIB_TAG_DOIT) {
 448                 return;
 449         }
 450         object->id.tag |= LIB_TAG_DOIT;
 451         /* Object Transforms */
 452         eDepsOperation_Code base_op = (object->parent) ? DEG_OPCODE_TRANSFORM_PARENT
 453                                                        : DEG_OPCODE_TRANSFORM_LOCAL;
 454         OperationKey base_op_key(&object->id, DEG_NODE_TYPE_TRANSFORM, base_op);
 455         OperationKey local_transform_key(&object->id,
 456                                          DEG_NODE_TYPE_TRANSFORM,
 457                                          DEG_OPCODE_TRANSFORM_LOCAL);
 458         OperationKey parent_transform_key(&object->id,
 459                                           DEG_NODE_TYPE_TRANSFORM,
 460                                           DEG_OPCODE_TRANSFORM_PARENT);
 461         OperationKey final_transform_key(&object->id,
 462                                          DEG_NODE_TYPE_TRANSFORM,
 463                                          DEG_OPCODE_TRANSFORM_FINAL);
 464         OperationKey ob_ubereval_key(&object->id,
 465                                      DEG_NODE_TYPE_TRANSFORM,
 466                                      DEG_OPCODE_TRANSFORM_OBJECT_UBEREVAL);
 467         /* Parenting. */
 468         if (object->parent != NULL) {
 469                 /* Parent relationship. */
 470                 build_object_parent(object);
 471                 /* Local -> parent. */
 472                 add_relation(local_transform_key,
 473                              parent_transform_key,
 474                              "ObLocal -> ObParent");
 475         }
 476         /* Modifiers. */
 477         if (object->modifiers.first != NULL) {
 478                 BuilderWalkUserData data;
 479                 data.builder = this;
 480                 modifiers_foreachObjectLink(object, modifier_walk, &data);
 481         }
 482         /* Constraints. */
 483         if (object->constraints.first != NULL) {
 484                 BuilderWalkUserData data;
 485                 data.builder = this;
 486                 BKE_constraints_id_loop(&object->constraints, constraint_walk, &data);
 487         }
 488         /* Object constraints. */
 489         if (object->constraints.first != NULL) {
 490                 OperationKey constraint_key(&object->id,
 491                                             DEG_NODE_TYPE_TRANSFORM,
 492                                             DEG_OPCODE_TRANSFORM_CONSTRAINTS);
 493                 /* Constraint relations. */
 494                 build_constraints(&object->id,
 495                                   DEG_NODE_TYPE_TRANSFORM,
 496                                   "",
 497                                   &object->constraints,
 498                                   NULL);
 499                 /* operation order */
 500                 add_relation(base_op_key, constraint_key, "ObBase-> Constraint Stack");
 501                 add_relation(constraint_key, final_transform_key, "ObConstraints -> Done");
 502                 // XXX
 503                 add_relation(constraint_key, ob_ubereval_key, "Temp Ubereval");
 504                 add_relation(ob_ubereval_key, final_transform_key, "Temp Ubereval");
 505         }
 506         else {
 507                 /* NOTE: Keep an eye here, we skip some relations here to "streamline"
 508                  * dependencies and avoid transitive relations which causes overhead.
 509                  * But once we get rid of uber eval node this will need reconsideration.
 510                  */
 511                 if (object->rigidbody_object == NULL) {
 512                         /* Rigid body will hook up another node inbetween, so skip
 513                          * relation here to avoid transitive relation.
 514                          */
 515                         add_relation(base_op_key, ob_ubereval_key, "Temp Ubereval");
 516                 }
 517                 add_relation(ob_ubereval_key, final_transform_key, "Temp Ubereval");
 518         }
 519         /* Animation data */
 520         build_animdata(&object->id);
 521         /* Object data. */
 522         build_object_data(object);
 523         /* Particle systems. */
 524         if (object->particlesystem.first != NULL) {
 525                 build_particles(object);
 526         }
 527         /* Grease pencil. */
 528         if (object->gpd != NULL) {
 529                 build_gpencil(object->gpd);
 530         }
 531         /* Object that this is a proxy for. */
 532         if (object->proxy != NULL) {
 533                 object->proxy->proxy_from = object;
 534                 build_object(object->proxy);
 535                 /* TODO(sergey): This is an inverted relation, matches old depsgraph
 536                  * behavior and need to be investigated if it still need to be inverted.
 537                  */
 538                 ComponentKey ob_pose_key(&object->id, DEG_NODE_TYPE_EVAL_POSE);
 539                 ComponentKey proxy_pose_key(&object->proxy->id, DEG_NODE_TYPE_EVAL_POSE);
 540                 add_relation(ob_pose_key, proxy_pose_key, "Proxy");
 541         }
 542         /* Object dupligroup. */
 543         if (object->dup_group != NULL) {
 544                 build_group(object, object->dup_group);
 545         }
 546 }
 547
 548 void DepsgraphRelationBuilder::build_object_data(Object *object)
 549 {
 550         if (object->data == NULL) {
 551                 return;
 552         }
 553         ID *obdata_id = (ID *)object->data;
 554         /* Object data animation. */
 555         build_animdata(obdata_id);
 556         /* type-specific data. */
 557         switch (object->type) {
 558                 case OB_MESH:
 559                 case OB_CURVE:
 560                 case OB_FONT:
 561                 case OB_SURF:
 562                 case OB_MBALL:
 563                 case OB_LATTICE:
 564                 {
 565                         build_obdata_geom(object);
 566                         break;
 567                 }
 568                 case OB_ARMATURE:
 569                         if (ID_IS_LINKED(object) && object->proxy_from != NULL) {
 570                                 build_proxy_rig(object);
 571                         }
 572                         else {
 573                                 build_rig(object);
 574                         }
 575                         break;
 576                 case OB_LAMP:
 577                         build_lamp(object);
 578                         break;
 579                 case OB_CAMERA:
 580                         build_camera(object);
 581                         break;
 582         }
 583         Key *key = BKE_key_from_object(object);
 584         if (key != NULL) {
 585                 ComponentKey geometry_key((ID *)object->data, DEG_NODE_TYPE_GEOMETRY);
 586                 ComponentKey key_key(&key->id, DEG_NODE_TYPE_GEOMETRY);
 587                 add_relation(key_key, geometry_key, "Shapekeys");
 588         }
 589 }
 590
 591 void DepsgraphRelationBuilder::build_object_parent(Object *object)
 592 {
 593         /* XXX: for now, need to use the component key (not just direct to the parent op),
 594          * or else the matrix doesn't get reset/
 595          */
 596         // XXX: @sergey - it would be good if we got that backwards flushing working
 597         // when tagging for updates.
 598         //OperationKey ob_key(&object->id, DEG_NODE_TYPE_TRANSFORM, DEG_OPCODE_TRANSFORM_PARENT);
 599         ComponentKey ob_key(&object->id, DEG_NODE_TYPE_TRANSFORM);
 600
 601         /* type-specific links */
 602         switch (object->partype) {
 603                 case PARSKEL:  /* Armature Deform (Virtual Modifier) */
 604                 {
 605                         ComponentKey parent_key(&object->parent->id, DEG_NODE_TYPE_TRANSFORM);
 606                         add_relation(parent_key, ob_key, "Armature Deform Parent");
 607                         break;
 608                 }
 609
 610                 case PARVERT1: /* Vertex Parent */
 611                 case PARVERT3:
 612                 {
 613                         ComponentKey parent_key(&object->parent->id, DEG_NODE_TYPE_GEOMETRY);
 614                         add_relation(parent_key, ob_key, "Vertex Parent");
 615
 616                         /* XXX not sure what this is for or how you could be done properly - lukas */
 617                         OperationDepsNode *parent_node = find_operation_node(parent_key);
 618                         if (parent_node != NULL) {
 619                                 parent_node->customdata_mask |= CD_MASK_ORIGINDEX;
 620                         }
 621
 622                         ComponentKey transform_key(&object->parent->id, DEG_NODE_TYPE_TRANSFORM);
 623                         add_relation(transform_key, ob_key, "Vertex Parent TFM");
 624                         break;
 625                 }
 626
 627                 case PARBONE: /* Bone Parent */
 628                 {
 629                         ComponentKey parent_bone_key(&object->parent->id,
 630                                                      DEG_NODE_TYPE_BONE,
 631                                                      object->parsubstr);
 632                         OperationKey parent_transform_key(&object->parent->id,
 633                                                           DEG_NODE_TYPE_TRANSFORM,
 634                                                           DEG_OPCODE_TRANSFORM_FINAL);
 635                         add_relation(parent_bone_key, ob_key, "Bone Parent");
 636                         add_relation(parent_transform_key, ob_key, "Armature Parent");
 637                         break;
 638                 }
 639
 640                 default:
 641                 {
 642                         if (object->parent->type == OB_LATTICE) {
 643                                 /* Lattice Deform Parent - Virtual Modifier */
 644                                 // XXX: no virtual modifiers should be left!
 645                                 ComponentKey parent_key(&object->parent->id, DEG_NODE_TYPE_TRANSFORM);
 646                                 ComponentKey geom_key(&object->parent->id, DEG_NODE_TYPE_GEOMETRY);
 647
 648                                 add_relation(parent_key, ob_key, "Lattice Deform Parent");
 649                                 add_relation(geom_key, ob_key, "Lattice Deform Parent Geom");
 650                         }
 651                         else if (object->parent->type == OB_CURVE) {
 652                                 Curve *cu = (Curve *)object->parent->data;
 653
 654                                 if (cu->flag & CU_PATH) {
 655                                         /* Follow Path */
 656                                         ComponentKey parent_key(&object->parent->id, DEG_NODE_TYPE_GEOMETRY);
 657                                         add_relation(parent_key, ob_key, "Curve Follow Parent");
 658
 659                                         ComponentKey transform_key(&object->parent->id, DEG_NODE_TYPE_TRANSFORM);
 660                                         add_relation(transform_key, ob_key, "Curve Follow TFM");
 661                                 }
 662                                 else {
 663                                         /* Standard Parent */
 664                                         ComponentKey parent_key(&object->parent->id, DEG_NODE_TYPE_TRANSFORM);
 665                                         add_relation(parent_key, ob_key, "Curve Parent");
 666                                 }
 667                         }
 668                         else {
 669                                 /* Standard Parent */
 670                                 ComponentKey parent_key(&object->parent->id, DEG_NODE_TYPE_TRANSFORM);
 671                                 add_relation(parent_key, ob_key, "Parent");
 672                         }
 673                         break;
 674                 }
 675         }
 676
 677         /* exception case: parent is duplivert */
 678         if ((object->type == OB_MBALL) && (object->parent->transflag & OB_DUPLIVERTS)) {
 679                 //dag_add_relation(dag, node2, node, DAG_RL_DATA_DATA | DAG_RL_OB_OB, "Duplivert");
 680         }
 681 }
 682
 683 void DepsgraphRelationBuilder::build_constraints(ID *id,
 684                                                  eDepsNode_Type component_type,
 685                                                  const char *component_subdata,
 686                                                  ListBase *constraints,
 687                                                  RootPChanMap *root_map)
 688 {
 689         OperationKey constraint_op_key(
 690                 id,
 691                 component_type,
 692                 component_subdata,
 693                 (component_type == DEG_NODE_TYPE_BONE)
 694                         ? DEG_OPCODE_BONE_CONSTRAINTS
 695                         : DEG_OPCODE_TRANSFORM_CONSTRAINTS);
 696         /* Add dependencies for each constraint in turn. */
 697         for (bConstraint *con = (bConstraint *)constraints->first; con; con = con->next) {
 698                 const bConstraintTypeInfo *cti = BKE_constraint_typeinfo_get(con);
 699                 /* Invalid constraint type. */
 700                 if (cti == NULL) {
 701                         continue;
 702                 }
 703                 /* Special case for camera tracking -- it doesn't use targets to
 704                  * define relations.
 705                  */
 706                 /* TODO: we can now represent dependencies in a much richer manner,
 707                  * so review how this is done.
 708                  */
 709                 if (ELEM(cti->type,
 710                          CONSTRAINT_TYPE_FOLLOWTRACK,
 711                          CONSTRAINT_TYPE_CAMERASOLVER,
 712                          CONSTRAINT_TYPE_OBJECTSOLVER))
 713                 {
 714                         bool depends_on_camera = false;
 715                         if (cti->type == CONSTRAINT_TYPE_FOLLOWTRACK) {
 716                                 bFollowTrackConstraint *data = (bFollowTrackConstraint *)con->data;
 717                                 if (((data->clip) ||
 718                                      (data->flag & FOLLOWTRACK_ACTIVECLIP)) && data->track[0])
 719                                 {
 720                                         depends_on_camera = true;
 721                                 }
 722                                 if (data->depth_ob) {
 723                                         ComponentKey depth_transform_key(&data->depth_ob->id,
 724                                                                          DEG_NODE_TYPE_TRANSFORM);
 725                                         ComponentKey depth_geometry_key(&data->depth_ob->id,
 726                                                                         DEG_NODE_TYPE_GEOMETRY);
 727                                         add_relation(depth_transform_key, constraint_op_key, cti->name);
 728                                         add_relation(depth_geometry_key, constraint_op_key, cti->name);
 729                                 }
 730                         }
 731                         else if (cti->type == CONSTRAINT_TYPE_OBJECTSOLVER) {
 732                                 depends_on_camera = true;
 733                         }
 734                         if (depends_on_camera && scene_->camera != NULL) {
 735                                 ComponentKey camera_key(&scene_->camera->id, DEG_NODE_TYPE_TRANSFORM);
 736                                 add_relation(camera_key, constraint_op_key, cti->name);
 737                         }
 738                         /* TODO(sergey): This is more a TimeSource -> MovieClip ->
 739                          * Constraint dependency chain.
 740                          */
 741                         TimeSourceKey time_src_key;
 742                         add_relation(time_src_key, constraint_op_key, "TimeSrc -> Animation");
 743                 }
 744                 else if (cti->type == CONSTRAINT_TYPE_TRANSFORM_CACHE) {
 745                         /* TODO(kevin): This is more a TimeSource -> CacheFile -> Constraint
 746                          * dependency chain.
 747                          */
 748                         TimeSourceKey time_src_key;
 749                         add_relation(time_src_key, constraint_op_key, "TimeSrc -> Animation");
 750                         bTransformCacheConstraint *data = (bTransformCacheConstraint *)con->data;
 751                         if (data->cache_file) {
 752                                 ComponentKey cache_key(&data->cache_file->id, DEG_NODE_TYPE_CACHE);
 753                                 add_relation(cache_key, constraint_op_key, cti->name);
 754                         }
 755                 }
 756                 else if (cti->get_constraint_targets) {
 757                         ListBase targets = {NULL, NULL};
 758                         cti->get_constraint_targets(con, &targets);
 759                         BLI_LISTBASE_FOREACH (bConstraintTarget *, ct, &targets) {
 760                                 if (ct->tar == NULL) {
 761                                         continue;
 762                                 }
 763                                 if (ELEM(con->type,
 764                                          CONSTRAINT_TYPE_KINEMATIC,
 765                                          CONSTRAINT_TYPE_SPLINEIK))
 766                                 {
 767                                         /* Ignore IK constraints - these are handled separately
 768                                          * (on pose level).
 769                                          */
 770                                 }
 771                                 else if (ELEM(con->type,
 772                                               CONSTRAINT_TYPE_FOLLOWPATH,
 773                                               CONSTRAINT_TYPE_CLAMPTO))
 774                                 {
 775                                         /* These constraints require path geometry data. */
 776                                         ComponentKey target_key(&ct->tar->id, DEG_NODE_TYPE_GEOMETRY);
 777                                         add_relation(target_key, constraint_op_key, cti->name);
 778                                         ComponentKey target_transform_key(&ct->tar->id,
 779                                                                           DEG_NODE_TYPE_TRANSFORM);
 780                                         add_relation(target_transform_key, constraint_op_key, cti->name);
 781                                 }
 782                                 else if ((ct->tar->type == OB_ARMATURE) && (ct->subtarget[0])) {
 783                                         /* bone */
 784                                         if (&ct->tar->id == id) {
 785                                                 /* same armature  */
 786                                                 eDepsOperation_Code target_key_opcode;
 787                                                 /* Using "done" here breaks in-chain deps, while using
 788                                                  * "ready" here breaks most production rigs instead.
 789                                                  * So, we do a compromise here, and only do this when an
 790                                                  * IK chain conflict may occur.
 791                                                  */
 792                                                 if (root_map->has_common_root(component_subdata,
 793                                                                               ct->subtarget))
 794                                                 {
 795                                                         target_key_opcode = DEG_OPCODE_BONE_READY;
 796                                                 }
 797                                                 else {
 798                                                         target_key_opcode = DEG_OPCODE_BONE_DONE;
 799                                                 }
 800                                                 OperationKey target_key(&ct->tar->id,
 801                                                                         DEG_NODE_TYPE_BONE,
 802                                                                         ct->subtarget,
 803                                                                         target_key_opcode);
 804                                                 add_relation(target_key, constraint_op_key, cti->name);
 805                                         }
 806                                         else {
 807                                                 /* Different armature - we can safely use the result
 808                                                  * of that.
 809                                                  */
 810                                                 OperationKey target_key(&ct->tar->id,
 811                                                                         DEG_NODE_TYPE_BONE,
 812                                                                         ct->subtarget,
 813                                                                         DEG_OPCODE_BONE_DONE);
 814                                                 add_relation(target_key, constraint_op_key, cti->name);
 815                                         }
 816                                 }
 817                                 else if (ELEM(ct->tar->type, OB_MESH, OB_LATTICE) &&
 818                                          (ct->subtarget[0]))
 819                                 {
 820                                         /* Vertex group. */
 821                                         /* NOTE: for now, we don't need to represent vertex groups
 822                                          * separately.
 823                                          */
 824                                         ComponentKey target_key(&ct->tar->id, DEG_NODE_TYPE_GEOMETRY);
 825                                         add_relation(target_key, constraint_op_key, cti->name);
 826                                         if (ct->tar->type == OB_MESH) {
 827                                                 OperationDepsNode *node2 = find_operation_node(target_key);
 828                                                 if (node2 != NULL) {
 829                                                         node2->customdata_mask |= CD_MASK_MDEFORMVERT;
 830                                                 }
 831                                         }
 832                                 }
 833                                 else if (con->type == CONSTRAINT_TYPE_SHRINKWRAP) {
 834                                         /* Constraints which requires the target object surface. */
 835                                         ComponentKey target_key(&ct->tar->id, DEG_NODE_TYPE_GEOMETRY);
 836                                         add_relation(target_key, constraint_op_key, cti->name);
 837                                         /* NOTE: obdata eval now doesn't necessarily depend on the
 838                                          * object's transform.
 839                                          */
 840                                         ComponentKey target_transform_key(&ct->tar->id,
 841                                                                           DEG_NODE_TYPE_TRANSFORM);
 842                                         add_relation(target_transform_key, constraint_op_key, cti->name);
 843                                 }
 844                                 else {
 845                                         /* Standard object relation. */
 846                                         // TODO: loc vs rot vs scale?
 847                                         if (&ct->tar->id == id) {
 848                                                 /* Constraint targetting own object:
 849                                                  * - This case is fine IFF we're dealing with a bone
 850                                                  *   constraint pointing to its own armature. In that
 851                                                  *   case, it's just transform -> bone.
 852                                                  * - If however it is a real self targetting case, just
 853                                                  *   make it depend on the previous constraint (or the
 854                                                  *   pre-constraint state).
 855                                                  */
 856                                                 if ((ct->tar->type == OB_ARMATURE) &&
 857                                                     (component_type == DEG_NODE_TYPE_BONE))
 858                                                 {
 859                                                         OperationKey target_key(&ct->tar->id,
 860                                                                                 DEG_NODE_TYPE_TRANSFORM,
 861                                                                                 DEG_OPCODE_TRANSFORM_FINAL);
 862                                                         add_relation(target_key, constraint_op_key, cti->name);
 863                                                 }
 864                                                 else {
 865                                                         OperationKey target_key(&ct->tar->id,
 866                                                                                 DEG_NODE_TYPE_TRANSFORM,
 867                                                                                 DEG_OPCODE_TRANSFORM_LOCAL);
 868                                                         add_relation(target_key, constraint_op_key, cti->name);
 869                                                 }
 870                                         }
 871                                         else {
 872                                                 /* Normal object dependency. */
 873                                                 OperationKey target_key(&ct->tar->id,
 874                                                                         DEG_NODE_TYPE_TRANSFORM,
 875                                                                         DEG_OPCODE_TRANSFORM_FINAL);
 876                                                 add_relation(target_key, constraint_op_key, cti->name);
 877                                         }
 878                                 }
 879                                 /* Constraints which needs world's matrix for transform.
 880                                  * TODO(sergey): More constraints here?
 881                                  */
 882                                 if (ELEM(con->type,
 883                                          CONSTRAINT_TYPE_ROTLIKE,
 884                                          CONSTRAINT_TYPE_SIZELIKE,
 885                                          CONSTRAINT_TYPE_LOCLIKE,
 886                                          CONSTRAINT_TYPE_TRANSLIKE))
 887                                 {
 888                                         /* TODO(sergey): Add used space check. */
 889                                         ComponentKey target_transform_key(&ct->tar->id,
 890                                                                           DEG_NODE_TYPE_TRANSFORM);
 891                                         add_relation(target_transform_key, constraint_op_key, cti->name);
 892                                 }
 893                         }
 894                         if (cti->flush_constraint_targets) {
 895                                 cti->flush_constraint_targets(con, &targets, 1);
 896                         }
 897                 }
 898         }
 899 }
 900
 901 void DepsgraphRelationBuilder::build_animdata(ID *id)
 902 {
 903         /* Animation curves and NLA. */
 904         build_animdata_curves(id);
 905         /* Drivers. */
 906         build_animdata_drivers(id);
 907 }
 908
 909 void DepsgraphRelationBuilder::build_animdata_curves(ID *id)
 910 {
 911         AnimData *adt = BKE_animdata_from_id(id);
 912         if (adt == NULL) {
 913                 return;
 914         }
 915         if (adt->action == NULL && adt->nla_tracks.first == NULL) {
 916                 return;
 917         }
 918         /* Wire up dependency to time source. */
 919         ComponentKey adt_key(id, DEG_NODE_TYPE_ANIMATION);
 920         TimeSourceKey time_src_key;
 921         add_relation(time_src_key, adt_key, "TimeSrc -> Animation");
 922         /* Get source operations. */
 923         DepsNode *node_from = get_node(adt_key);
 924         BLI_assert(node_from != NULL);
 925         if (node_from == NULL) {
 926                 return;
 927         }
 928         OperationDepsNode *operation_from = node_from->get_exit_operation();
 929         BLI_assert(operation_from != NULL);
 930         /* Build relations from animation operation to properties it changes. */
 931         if (adt->action != NULL) {
 932                 build_animdata_curves_targets(id, adt_key,
 933                                       operation_from,
 934                                       &adt->action->curves);
 935         }
 936         BLI_LISTBASE_FOREACH(NlaTrack *, nlt, &adt->nla_tracks) {
 937                 build_animdata_nlastrip_targets(id, adt_key,
 938                                                 operation_from,
 939                                                 &nlt->strips);
 940         }
 941 }
 942
 943 void DepsgraphRelationBuilder::build_animdata_curves_targets(
 944         ID *id, ComponentKey &adt_key,
 945         OperationDepsNode *operation_from,
 946         ListBase *curves)
 947 {
 948         /* Iterate over all curves and build relations. */
 949         PointerRNA id_ptr;
 950         RNA_id_pointer_create(id, &id_ptr);
 951         BLI_LISTBASE_FOREACH(FCurve *, fcu, curves) {
 952                 PointerRNA ptr;
 953                 PropertyRNA *prop;
 954                 int index;
 955                 if (!RNA_path_resolve_full(&id_ptr, fcu->rna_path,
 956                                            &ptr, &prop, &index))
 957                 {
 958                         continue;
 959                 }
 960                 DepsNode *node_to = graph_->find_node_from_pointer(&ptr, prop);
 961                 if (node_to == NULL) {
 962                         continue;
 963                 }
 964                 OperationDepsNode *operation_to = node_to->get_entry_operation();
 965                 /* NOTE: Special case for bones, avoid relation from animation to
 966                  * each of the bones. Bone evaluation could only start from pose
 967                  * init anyway.
 968                  */
 969                 if (operation_to->opcode == DEG_OPCODE_BONE_LOCAL) {
 970                         OperationKey pose_init_key(id,
 971                                                    DEG_NODE_TYPE_EVAL_POSE,
 972                                                    DEG_OPCODE_POSE_INIT);
 973                         add_relation(adt_key, pose_init_key, "Animation -> Prop", true);
 974                         continue;
 975                 }
 976                 graph_->add_new_relation(operation_from, operation_to,
 977                                          "Animation -> Prop",
 978                                          true);
 979         }
 980 }
 981
 982 void DepsgraphRelationBuilder::build_animdata_nlastrip_targets(
 983         ID *id, ComponentKey &adt_key,
 984         OperationDepsNode *operation_from,
 985         ListBase *strips)
 986 {
 987         BLI_LISTBASE_FOREACH(NlaStrip *, strip, strips) {
 988                 if (strip->act != NULL) {
 989                         build_animdata_curves_targets(id, adt_key,
 990                                                       operation_from,
 991                                                       &strip->act->curves);
 992                 }
 993                 else if (strip->strips.first != NULL) {
 994                         build_animdata_nlastrip_targets(id, adt_key,
 995                                                         operation_from,
 996                                                         &strip->strips);
 997                 }
 998         }
 999 }
1000
1001 void DepsgraphRelationBuilder::build_animdata_drivers(ID *id)
1002 {
1003         AnimData *adt = BKE_animdata_from_id(id);
1004         if (adt == NULL) {
1005                 return;
1006         }
1007         ComponentKey adt_key(id, DEG_NODE_TYPE_ANIMATION);
1008         BLI_LISTBASE_FOREACH (FCurve *, fcu, &adt->drivers) {
1009                 OperationKey driver_key(id,
1010                                         DEG_NODE_TYPE_PARAMETERS,
1011                                         DEG_OPCODE_DRIVER,
1012                                         fcu->rna_path ? fcu->rna_path : "",
1013                                         fcu->array_index);
1014
1015                 /* create the driver's relations to targets */
1016                 build_driver(id, fcu);
1017
1018                 /* Special case for array drivers: we can not multithread them because
1019                  * of the way how they work internally: animation system will write the
1020                  * whole array back to RNA even when changing individual array value.
1021                  *
1022                  * Some tricky things here:
1023                  * - array_index is -1 for single channel drivers, meaning we only have
1024                  *   to do some magic when array_index is not -1.
1025                  * - We do relation from next array index to a previous one, so we don't
1026                  *   have to deal with array index 0.
1027                  *
1028                  * TODO(sergey): Avoid liner lookup somehow.
1029                  */
1030                 if (fcu->array_index > 0) {
1031                         FCurve *fcu_prev = NULL;
1032                         BLI_LISTBASE_FOREACH (FCurve *, fcu_candidate, &adt->drivers) {
1033                                 /* Writing to different RNA paths is  */
1034                                 const char *rna_path = fcu->rna_path ? fcu->rna_path : "";
1035                                 if (!STREQ(fcu_candidate->rna_path, rna_path)) {
1036                                         continue;
1037                                 }
1038                                 /* We only do relation from previous fcurve to previous one. */
1039                                 if (fcu_candidate->array_index >= fcu->array_index) {
1040                                         continue;
1041                                 }
1042                                 /* Choose fcurve with highest possible array index. */
1043                                 if (fcu_prev == NULL ||
1044                                     fcu_candidate->array_index > fcu_prev->array_index)
1045                                 {
1046                                         fcu_prev = fcu_candidate;
1047                                 }
1048                         }
1049                         if (fcu_prev != NULL) {
1050                                 OperationKey prev_driver_key(id,
1051                                                              DEG_NODE_TYPE_PARAMETERS,
1052                                                              DEG_OPCODE_DRIVER,
1053                                                              fcu_prev->rna_path ? fcu_prev->rna_path : "",
1054                                                              fcu_prev->array_index);
1055                                 OperationKey driver_key(id,
1056                                                         DEG_NODE_TYPE_PARAMETERS,
1057                                                         DEG_OPCODE_DRIVER,
1058                                                         fcu->rna_path ? fcu->rna_path : "",
1059                                                         fcu->array_index);
1060                                 add_relation(prev_driver_key, driver_key, "Driver Order");
1061                         }
1062                 }
1063
1064                 /* prevent driver from occurring before own animation... */
1065                 if (adt->action || adt->nla_tracks.first) {
1066                         add_relation(adt_key, driver_key, "AnimData Before Drivers");
1067                 }
1068         }
1069 }
1070
1071 void DepsgraphRelationBuilder::build_driver(ID *id, FCurve *fcu)
1072 {
1073         ChannelDriver *driver = fcu->driver;
1074         OperationKey driver_key(id,
1075                                 DEG_NODE_TYPE_PARAMETERS,
1076                                 DEG_OPCODE_DRIVER,
1077                                 fcu->rna_path ? fcu->rna_path : "",
1078                                 fcu->array_index);
1079         /* Driver -> data components (for interleaved evaluation
1080          * bones/constraints/modifiers).
1081          */
1082         build_driver_data(id, fcu);
1083         /* Loop over variables to get the target relationships. */
1084         build_driver_variables(id, fcu);
1085         /* It's quite tricky to detect if the driver actually depends on time or
1086          * not, so for now we'll be quite conservative here about optimization and
1087          * consider all python drivers to be depending on time.
1088          */
1089         if ((driver->type == DRIVER_TYPE_PYTHON) &&
1090             python_driver_depends_on_time(driver))
1091         {
1092                 TimeSourceKey time_src_key;
1093                 add_relation(time_src_key, driver_key, "TimeSrc -> Driver");
1094         }
1095 }
1096
1097 void DepsgraphRelationBuilder::build_driver_data(ID *id, FCurve *fcu)
1098 {
1099         OperationKey driver_key(id,
1100                                 DEG_NODE_TYPE_PARAMETERS,
1101                                 DEG_OPCODE_DRIVER,
1102                                 fcu->rna_path ? fcu->rna_path : "",
1103                                 fcu->array_index);
1104         const char *rna_path = fcu->rna_path ? fcu->rna_path : "";
1105         const RNAPathKey self_key(id, rna_path);
1106         if (GS(id->name) == ID_AR && strstr(rna_path, "bones[")) {
1107                 /* Drivers on armature-level bone settings (i.e. bbone stuff),
1108                  * which will affect the evaluation of corresponding pose bones.
1109                  */
1110                 IDDepsNode *arm_node = graph_->find_id_node(id);
1111                 char *bone_name = BLI_str_quoted_substrN(rna_path, "bones[");
1112                 if (arm_node && bone_name) {
1113                         /* Find objects which use this, and make their eval callbacks
1114                          * depend on this.
1115                          */
1116                         foreach (DepsRelation *rel, arm_node->outlinks) {
1117                                 IDDepsNode *to_node = (IDDepsNode *)rel->to;
1118                                 /* We only care about objects with pose data which use this. */
1119                                 if (GS(to_node->id->name) == ID_OB) {
1120                                         Object *object = (Object *)to_node->id;
1121                                         /* NOTE: object->pose may be NULL. */
1122                                         bPoseChannel *pchan = BKE_pose_channel_find_name(
1123                                                 object->pose, bone_name);
1124                                         if (pchan != NULL) {
1125                                                 OperationKey bone_key(&object->id,
1126                                                                       DEG_NODE_TYPE_BONE,
1127                                                                       pchan->name,
1128                                                                       DEG_OPCODE_BONE_LOCAL);
1129                                                 add_relation(driver_key,
1130                                                              bone_key,
1131                                                              "Arm Bone -> Driver -> Bone");
1132                                         }
1133                                 }
1134                         }
1135                         /* Free temp data. */
1136                         MEM_freeN(bone_name);
1137                         bone_name = NULL;
1138                 }
1139                 else {
1140                         fprintf(stderr,
1141                                 "Couldn't find armature bone name for driver path - '%s'\n",
1142                                 rna_path);
1143                 }
1144         }
1145         else {
1146                 RNAPathKey target_key(id, rna_path);
1147                 add_relation(driver_key, target_key, "Driver -> Target");
1148         }
1149 }
1150
1151 void DepsgraphRelationBuilder::build_driver_variables(ID *id, FCurve *fcu)
1152 {
1153         ChannelDriver *driver = fcu->driver;
1154         OperationKey driver_key(id,
1155                                 DEG_NODE_TYPE_PARAMETERS,
1156                                 DEG_OPCODE_DRIVER,
1157                                 fcu->rna_path ? fcu->rna_path : "",
1158                                 fcu->array_index);
1159         const char *rna_path = fcu->rna_path ? fcu->rna_path : "";
1160         const RNAPathKey self_key(id, rna_path);
1161
1162         BLI_LISTBASE_FOREACH (DriverVar *, dvar, &driver->variables) {
1163                 /* Only used targets. */
1164                 DRIVER_TARGETS_USED_LOOPER(dvar)
1165                 {
1166                         if (dtar->id == NULL) {
1167                                 continue;
1168                         }
1169                         /* Special handling for directly-named bones. */
1170                         if ((dtar->flag & DTAR_FLAG_STRUCT_REF) &&
1171                             (((Object *)dtar->id)->type == OB_ARMATURE) &&
1172                             (dtar->pchan_name[0]))
1173                         {
1174                                 Object *object = (Object *)dtar->id;
1175                                 bPoseChannel *target_pchan =
1176                                         BKE_pose_channel_find_name(object->pose,
1177                                                                    dtar->pchan_name);
1178                                 if (target_pchan == NULL) {
1179                                         continue;
1180                                 }
1181                                 OperationKey variable_key(dtar->id,
1182                                                           DEG_NODE_TYPE_BONE,
1183                                                           target_pchan->name,
1184                                                           DEG_OPCODE_BONE_DONE);
1185                                 if (is_same_bone_dependency(variable_key, self_key)) {
1186                                         continue;
1187                                 }
1188                                 add_relation(variable_key, driver_key, "Bone Target -> Driver");
1189                         }
1190                         else if (dtar->flag & DTAR_FLAG_STRUCT_REF) {
1191                                 /* Get node associated with the object's transforms. */
1192                                 if (dtar->id == id) {
1193                                         /* Ignore input dependency if we're driving properties of
1194                                          * the same ID, otherwise we'll be ending up in a cyclic
1195                                          * dependency here.
1196                                          */
1197                                         continue;
1198                                 }
1199                                 OperationKey target_key(dtar->id,
1200                                                         DEG_NODE_TYPE_TRANSFORM,
1201                                                         DEG_OPCODE_TRANSFORM_FINAL);
1202                                 add_relation(target_key, driver_key, "Target -> Driver");
1203                         }
1204                         else if (dtar->rna_path) {
1205                                 RNAPathKey variable_key(dtar->id, dtar->rna_path);
1206                                 if (RNA_pointer_is_null(&variable_key.ptr)) {
1207                                         continue;
1208                                 }
1209                                 if (is_same_bone_dependency(variable_key, self_key) ||
1210                                     is_same_nodetree_node_dependency(variable_key, self_key) ||
1211                                     is_same_shapekey_dependency(variable_key, self_key))
1212                                 {
1213                                         continue;
1214                                 }
1215                                 add_relation(variable_key, driver_key, "RNA Target -> Driver");
1216                         }
1217                         else {
1218                                 if (dtar->id == id) {
1219                                         /* Ignore input dependency if we're driving properties of
1220                                          * the same ID, otherwise we'll be ending up in a cyclic
1221                                          * dependency here.
1222                                          */
1223                                         continue;
1224                                 }
1225                                 /* Resolve path to get node. */
1226                                 RNAPathKey target_key(dtar->id,
1227                                                       dtar->rna_path ? dtar->rna_path : "");
1228                                 add_relation(target_key, driver_key, "RNA Target -> Driver");
1229                         }
1230                 }
1231                 DRIVER_TARGETS_LOOPER_END
1232         }
1233 }
1234
1235 void DepsgraphRelationBuilder::build_world(World *world)
1236 {
1237         ID *world_id = &world->id;
1238         if (world_id->tag & LIB_TAG_DOIT) {
1239                 return;
1240         }
1241         world_id->tag |= LIB_TAG_DOIT;
1242
1243         build_animdata(world_id);
1244
1245         /* TODO: other settings? */
1246
1247         /* textures */
1248         build_texture_stack(world->mtex);
1249
1250         /* world's nodetree */
1251         if (world->nodetree != NULL) {
1252                 build_nodetree(world->nodetree);
1253                 ComponentKey ntree_key(&world->nodetree->id, DEG_NODE_TYPE_PARAMETERS);
1254                 ComponentKey world_key(world_id, DEG_NODE_TYPE_PARAMETERS);
1255                 add_relation(ntree_key, world_key, "NTree->World Parameters");
1256         }
1257 }
1258
1259 void DepsgraphRelationBuilder::build_rigidbody(Scene *scene)
1260 {
1261         RigidBodyWorld *rbw = scene->rigidbody_world;
1262
1263         OperationKey init_key(&scene->id, DEG_NODE_TYPE_TRANSFORM, DEG_OPCODE_RIGIDBODY_REBUILD);
1264         OperationKey sim_key(&scene->id, DEG_NODE_TYPE_TRANSFORM, DEG_OPCODE_RIGIDBODY_SIM);
1265
1266         /* rel between the two sim-nodes */
1267         add_relation(init_key, sim_key, "Rigidbody [Init -> SimStep]");
1268
1269         /* set up dependencies between these operations and other builtin nodes --------------- */
1270
1271         /* time dependency */
1272         TimeSourceKey time_src_key;
1273         add_relation(time_src_key, init_key, "TimeSrc -> Rigidbody Reset/Rebuild (Optional)");
1274
1275         /* objects - simulation participants */
1276         if (rbw->group) {
1277                 BLI_LISTBASE_FOREACH (GroupObject *, go, &rbw->group->gobject) {
1278                         Object *object = go->ob;
1279                         if (object == NULL || object->type != OB_MESH) {
1280                                 continue;
1281                         }
1282
1283                         /* hook up evaluation order...
1284                          * 1) flushing rigidbody results follows base transforms being applied
1285                          * 2) rigidbody flushing can only be performed after simulation has been run
1286                          *
1287                          * 3) simulation needs to know base transforms to figure out what to do
1288                          *    XXX: there's probably a difference between passive and active
1289                          *         - passive don't change, so may need to know full transform...
1290                          */
1291                         OperationKey rbo_key(&object->id, DEG_NODE_TYPE_TRANSFORM, DEG_OPCODE_RIGIDBODY_TRANSFORM_COPY);
1292
1293                         eDepsOperation_Code trans_opcode = object->parent ? DEG_OPCODE_TRANSFORM_PARENT : DEG_OPCODE_TRANSFORM_LOCAL;
1294                         OperationKey trans_op(&object->id, DEG_NODE_TYPE_TRANSFORM, trans_opcode);
1295
1296                         add_relation(sim_key, rbo_key, "Rigidbody Sim Eval -> RBO Sync");
1297
1298                         /* if constraints exist, those depend on the result of the rigidbody sim
1299                          * - This allows constraints to modify the result of the sim (i.e. clamping)
1300                          *   while still allowing the sim to depend on some changes to the objects.
1301                          *   Also, since constraints are hooked up to the final nodes, this link
1302                          *   means that we can also fit in there too...
1303                          * - Later, it might be good to include a constraint in the stack allowing us
1304                          *   to control whether rigidbody eval gets interleaved into the constraint stack
1305                          */
1306                         if (object->constraints.first) {
1307                                 OperationKey constraint_key(&object->id,
1308                                                             DEG_NODE_TYPE_TRANSFORM,
1309                                                             DEG_OPCODE_TRANSFORM_CONSTRAINTS);
1310                                 add_relation(rbo_key, constraint_key, "RBO Sync -> Ob Constraints");
1311                         }
1312                         else {
1313                                 /* Final object transform depends on rigidbody.
1314                                  *
1315                                  * NOTE: Currently we consider final here an ubereval node.
1316                                  * If it is gone we'll need to reconsider relation here.
1317                                  */
1318                                 OperationKey uber_key(&object->id,
1319                                                       DEG_NODE_TYPE_TRANSFORM,
1320                                                       DEG_OPCODE_TRANSFORM_OBJECT_UBEREVAL);
1321                                 add_relation(rbo_key, uber_key, "RBO Sync -> Uber (Temp)");
1322                         }
1323
1324                         /* Needed to get correct base values. */
1325                         add_relation(trans_op, sim_key, "Base Ob Transform -> Rigidbody Sim Eval");
1326                 }
1327         }
1328
1329         /* constraints */
1330         if (rbw->constraints) {
1331                 BLI_LISTBASE_FOREACH (GroupObject *, go, &rbw->constraints->gobject) {
1332                         Object *object = go->ob;
1333                         if (object == NULL || !object->rigidbody_constraint) {
1334                                 continue;
1335                         }
1336
1337                         RigidBodyCon *rbc = object->rigidbody_constraint;
1338
1339                         /* final result of the constraint object's transform controls how the
1340                          * constraint affects the physics sim for these objects
1341                          */
1342                         ComponentKey trans_key(&object->id, DEG_NODE_TYPE_TRANSFORM);
1343                         OperationKey ob1_key(&rbc->ob1->id, DEG_NODE_TYPE_TRANSFORM, DEG_OPCODE_RIGIDBODY_TRANSFORM_COPY);
1344                         OperationKey ob2_key(&rbc->ob2->id, DEG_NODE_TYPE_TRANSFORM, DEG_OPCODE_RIGIDBODY_TRANSFORM_COPY);
1345
1346                         /* - constrained-objects sync depends on the constraint-holder */
1347                         add_relation(trans_key, ob1_key, "RigidBodyConstraint -> RBC.Object_1");
1348                         add_relation(trans_key, ob2_key, "RigidBodyConstraint -> RBC.Object_2");
1349
1350                         /* - ensure that sim depends on this constraint's transform */
1351                         add_relation(trans_key, sim_key, "RigidBodyConstraint Transform -> RB Simulation");
1352                 }
1353         }
1354 }
1355
1356 void DepsgraphRelationBuilder::build_particles(Object *object)
1357 {
1358         TimeSourceKey time_src_key;
1359         OperationKey obdata_ubereval_key(&object->id,
1360                                          DEG_NODE_TYPE_GEOMETRY,
1361                                          DEG_OPCODE_GEOMETRY_UBEREVAL);
1362         OperationKey eval_init_key(&object->id,
1363                                    DEG_NODE_TYPE_EVAL_PARTICLES,
1364                                    DEG_OPCODE_PARTICLE_SYSTEM_EVAL_INIT);
1365
1366         /* Particle systems. */
1367         BLI_LISTBASE_FOREACH (ParticleSystem *, psys, &object->particlesystem) {
1368                 ParticleSettings *part = psys->part;
1369                 /* Animation of particle settings, */
1370                 build_animdata(&part->id);
1371                 /* This particle system. */
1372                 OperationKey psys_key(&object->id,
1373                                       DEG_NODE_TYPE_EVAL_PARTICLES,
1374                                       DEG_OPCODE_PARTICLE_SYSTEM_EVAL,
1375                                       psys->name);
1376                 add_relation(eval_init_key, psys_key, "Init -> PSys");
1377                 /* TODO(sergey): Currently particle update is just a placeholder,
1378                  * hook it to the ubereval node so particle system is getting updated
1379                  * on playback.
1380                  */
1381                 add_relation(psys_key, obdata_ubereval_key, "PSys -> UberEval");
1382                 /* Collisions */
1383                 if (part->type != PART_HAIR) {
1384                         add_collision_relations(psys_key,
1385                                                 scene_,
1386                                                 object,
1387                                                 part->collision_group,
1388                                                 object->lay,
1389                                                 true,
1390                                                 "Particle Collision");
1391                 }
1392                 else if ((psys->flag & PSYS_HAIR_DYNAMICS) &&
1393                          psys->clmd && psys->clmd->coll_parms)
1394                 {
1395                         add_collision_relations(psys_key,
1396                                                 scene_,
1397                                                 object,
1398                                                 psys->clmd->coll_parms->group,
1399                                                 object->lay | scene_->lay,
1400                                                 true,
1401                                                 "Hair Collision");
1402                 }
1403                 /* Effectors. */
1404                 add_forcefield_relations(psys_key,
1405                                          scene_,
1406                                          object,
1407                                          psys,
1408                                          part->effector_weights,
1409                                          part->type == PART_HAIR,
1410                                          "Particle Field");
1411                 /* Boids. */
1412                 if (part->boids) {
1413                         BLI_LISTBASE_FOREACH (BoidState *, state, &part->boids->states) {
1414                                 BLI_LISTBASE_FOREACH (BoidRule *, rule, &state->rules) {
1415                                         Object *ruleob = NULL;
1416                                         if (rule->type == eBoidRuleType_Avoid) {
1417                                                 ruleob = ((BoidRuleGoalAvoid *)rule)->ob;
1418                                         }
1419                                         else if (rule->type == eBoidRuleType_FollowLeader) {
1420                                                 ruleob = ((BoidRuleFollowLeader *)rule)->ob;
1421                                         }
1422                                         if (ruleob) {
1423                                                 ComponentKey ruleob_key(&ruleob->id,
1424                                                                         DEG_NODE_TYPE_TRANSFORM);
1425                                                 add_relation(ruleob_key, psys_key, "Boid Rule");
1426                                         }
1427                                 }
1428                         }
1429                 }
1430
1431                 switch (part->ren_as) {
1432                         case PART_DRAW_OB:
1433                                 if (part->dup_ob != NULL) {
1434                                         /* Make sure object's relations are all built.  */
1435                                         build_object(part->dup_ob);
1436                                         /* Build relation for the particle visualization. */
1437                                         build_particles_visualization_object(object,
1438                                                                              psys,
1439                                                                              part->dup_ob);
1440                                 }
1441                                 break;
1442                         case PART_DRAW_GR:
1443                                 if (part->dup_group != NULL) {
1444                                         build_group(NULL, part->dup_group);
1445                                         BLI_LISTBASE_FOREACH (GroupObject *, go, &part->dup_group->gobject) {
1446                                                 build_particles_visualization_object(object,
1447                                                                                      psys,
1448                                                                                      go->ob);
1449                                         }
1450                                 }
1451                                 break;
1452                 }
1453         }
1454
1455         /* Particle depends on the object transform, so that channel is to be ready
1456          * first.
1457          *
1458          * TODO(sergey): This relation should be altered once real granular update
1459          * is implemented.
1460          */
1461         ComponentKey transform_key(&object->id, DEG_NODE_TYPE_TRANSFORM);
1462         add_relation(transform_key, obdata_ubereval_key, "Partcile Eval");
1463
1464         /* pointcache */
1465         // TODO...
1466 }
1467
1468 void DepsgraphRelationBuilder::build_particles_visualization_object(
1469         Object *object,
1470         ParticleSystem *psys,
1471         Object *draw_object)
1472 {
1473         OperationKey psys_key(&object->id,
1474                               DEG_NODE_TYPE_EVAL_PARTICLES,
1475                               DEG_OPCODE_PARTICLE_SYSTEM_EVAL,
1476                               psys->name);
1477         OperationKey obdata_ubereval_key(&object->id,
1478                                          DEG_NODE_TYPE_GEOMETRY,
1479                                          DEG_OPCODE_GEOMETRY_UBEREVAL);
1480         ComponentKey dup_ob_key(&draw_object->id, DEG_NODE_TYPE_TRANSFORM);
1481         add_relation(dup_ob_key, psys_key, "Particle Object Visualization");
1482         if (draw_object->type == OB_MBALL) {
1483                 ComponentKey dup_geometry_key(&draw_object->id, DEG_NODE_TYPE_GEOMETRY);
1484                 add_relation(obdata_ubereval_key,
1485                              dup_geometry_key,
1486                              "Particle MBall Visualization");
1487         }
1488 }
1489
1490 void DepsgraphRelationBuilder::build_cloth(Object *object,
1491                                            ModifierData * /*md*/)
1492 {
1493         OperationKey cache_key(&object->id,
1494                                DEG_NODE_TYPE_CACHE,
1495                                DEG_OPCODE_GEOMETRY_CLOTH_MODIFIER);
1496         /* Cache component affects on modifier. */
1497         OperationKey modifier_key(&object->id,
1498                                   DEG_NODE_TYPE_GEOMETRY,
1499                                   DEG_OPCODE_GEOMETRY_UBEREVAL);
1500         add_relation(cache_key, modifier_key, "Cloth Cache -> Cloth");
1501 }
1502
1503 /* Shapekeys */
1504 void DepsgraphRelationBuilder::build_shapekeys(ID *obdata, Key *key)
1505 {
1506         ComponentKey obdata_key(obdata, DEG_NODE_TYPE_GEOMETRY);
1507
1508         /* attach animdata to geometry */
1509         build_animdata(&key->id);
1510
1511         if (key->adt) {
1512                 // TODO: this should really be handled in build_animdata, since many of these cases will need it
1513                 if (key->adt->action || key->adt->nla_tracks.first) {
1514                         ComponentKey adt_key(&key->id, DEG_NODE_TYPE_ANIMATION);
1515                         add_relation(adt_key, obdata_key, "Animation");
1516                 }
1517
1518                 /* NOTE: individual shapekey drivers are handled above already */
1519         }
1520
1521         /* attach to geometry */
1522         // XXX: aren't shapekeys now done as a pseudo-modifier on object?
1523         //ComponentKey key_key(&key->id, DEG_NODE_TYPE_GEOMETRY); // FIXME: this doesn't exist
1524         //add_relation(key_key, obdata_key, "Shapekeys");
1525 }
1526
1527 /**
1528  * ObData Geometry Evaluation
1529  * ==========================
1530  *
1531  * The evaluation of geometry on objects is as follows:
1532  * - The actual evaluated of the derived geometry (e.g. DerivedMesh, DispList, etc.)
1533  *   occurs in the Geometry component of the object which references this. This includes
1534  *   modifiers, and the temporary "ubereval" for geometry.
1535  * - Therefore, each user of a piece of shared geometry data ends up evaluating its own
1536  *   version of the stuff, complete with whatever modifiers it may use.
1537  *
1538  * - The datablocks for the geometry data - "obdata" (e.g. ID_ME, ID_CU, ID_LT, etc.) are used for
1539  *     1) calculating the bounding boxes of the geometry data,
1540  *     2) aggregating inward links from other objects (e.g. for text on curve, etc.)
1541  *        and also for the links coming from the shapekey datablocks
1542  * - Animation/Drivers affecting the parameters of the geometry are made to trigger
1543  *   updates on the obdata geometry component, which then trigger downstream
1544  *   re-evaluation of the individual instances of this geometry.
1545  */
1546 // TODO: Materials and lighting should probably get their own component, instead of being lumped under geometry?
1547 void DepsgraphRelationBuilder::build_obdata_geom(Object *object)
1548 {
1549         ID *obdata = (ID *)object->data;
1550
1551         /* Init operation of object-level geometry evaluation. */
1552         OperationKey geom_init_key(&object->id, DEG_NODE_TYPE_GEOMETRY, DEG_OPCODE_PLACEHOLDER, "Eval Init");
1553
1554         /* get nodes for result of obdata's evaluation, and geometry evaluation on object */
1555         ComponentKey obdata_geom_key(obdata, DEG_NODE_TYPE_GEOMETRY);
1556         ComponentKey geom_key(&object->id, DEG_NODE_TYPE_GEOMETRY);
1557
1558         /* link components to each other */
1559         add_relation(obdata_geom_key, geom_key, "Object Geometry Base Data");
1560
1561         /* Modifiers */
1562         if (object->modifiers.first != NULL) {
1563                 OperationKey obdata_ubereval_key(&object->id,
1564                                                  DEG_NODE_TYPE_GEOMETRY,
1565                                                  DEG_OPCODE_GEOMETRY_UBEREVAL);
1566
1567                 BLI_LISTBASE_FOREACH (ModifierData *, md, &object->modifiers) {
1568                         const ModifierTypeInfo *mti = modifierType_getInfo((ModifierType)md->type);
1569                         if (mti->updateDepsgraph) {
1570                                 DepsNodeHandle handle = create_node_handle(obdata_ubereval_key);
1571                                 mti->updateDepsgraph(
1572                                         md,
1573                                         bmain_,
1574                                         scene_,
1575                                         object,
1576                                         reinterpret_cast< ::DepsNodeHandle* >(&handle));
1577                         }
1578                         if (BKE_object_modifier_use_time(object, md)) {
1579                                 TimeSourceKey time_src_key;
1580                                 add_relation(time_src_key, obdata_ubereval_key, "Time Source");
1581                         }
1582                         if (md->type == eModifierType_Cloth) {
1583                                 build_cloth(object, md);
1584                         }
1585                 }
1586         }
1587
1588         /* materials */
1589         if (object->totcol) {
1590                 for (int a = 1; a <= object->totcol; a++) {
1591                         Material *ma = give_current_material(object, a);
1592                         if (ma != NULL) {
1593                                 build_material(ma);
1594                         }
1595                 }
1596         }
1597
1598         /* geometry collision */
1599         if (ELEM(object->type, OB_MESH, OB_CURVE, OB_LATTICE)) {
1600                 // add geometry collider relations
1601         }
1602
1603         /* Make sure uber update is the last in the dependencies.
1604          *
1605          * TODO(sergey): Get rid of this node.
1606          */
1607         if (object->type != OB_ARMATURE) {
1608                 /* Armatures does no longer require uber node. */
1609                 OperationKey obdata_ubereval_key(&object->id, DEG_NODE_TYPE_GEOMETRY, DEG_OPCODE_GEOMETRY_UBEREVAL);
1610                 add_relation(geom_init_key, obdata_ubereval_key, "Object Geometry UberEval");
1611         }
1612
1613         if (obdata->tag & LIB_TAG_DOIT) {
1614                 return;
1615         }
1616         obdata->tag |= LIB_TAG_DOIT;
1617
1618         /* Link object data evaluation node to exit operation. */
1619         OperationKey obdata_geom_eval_key(obdata, DEG_NODE_TYPE_GEOMETRY, DEG_OPCODE_PLACEHOLDER, "Geometry Eval");
1620         OperationKey obdata_geom_done_key(obdata, DEG_NODE_TYPE_GEOMETRY, DEG_OPCODE_PLACEHOLDER, "Eval Done");
1621         add_relation(obdata_geom_eval_key, obdata_geom_done_key, "ObData Geom Eval Done");
1622
1623         /* type-specific node/links */
1624         switch (object->type) {
1625                 case OB_MESH:
1626                         /* NOTE: This is compatibility code to support particle systems
1627                          *
1628                          * for viewport being properly rendered in final render mode.
1629                          * This relation is similar to what dag_object_time_update_flags()
1630                          * was doing for mesh objects with particle system.
1631                          *
1632                          * Ideally we need to get rid of this relation.
1633                          */
1634                         if (object_particles_depends_on_time(object)) {
1635                                 TimeSourceKey time_key;
1636                                 OperationKey obdata_ubereval_key(&object->id,
1637                                                                  DEG_NODE_TYPE_GEOMETRY,
1638                                                                  DEG_OPCODE_GEOMETRY_UBEREVAL);
1639                                 add_relation(time_key, obdata_ubereval_key, "Legacy particle time");
1640                         }
1641                         break;
1642
1643                 case OB_MBALL:
1644                 {
1645                         Object *mom = BKE_mball_basis_find(scene_, object);
1646                         ComponentKey mom_geom_key(&mom->id, DEG_NODE_TYPE_GEOMETRY);
1647                         /* motherball - mom depends on children! */
1648                         if (mom == object) {
1649                                 ComponentKey mom_transform_key(&mom->id,
1650                                                                DEG_NODE_TYPE_TRANSFORM);
1651                                 add_relation(mom_transform_key,
1652                                              mom_geom_key,
1653                                              "Metaball Motherball Transform -> Geometry");
1654                         }
1655                         else {
1656                                 ComponentKey transform_key(&object->id, DEG_NODE_TYPE_TRANSFORM);
1657                                 add_relation(geom_key, mom_geom_key, "Metaball Motherball");
1658                                 add_relation(transform_key, mom_geom_key, "Metaball Motherball");
1659                         }
1660                         break;
1661                 }
1662
1663                 case OB_CURVE:
1664                 case OB_FONT:
1665                 {
1666                         Curve *cu = (Curve *)obdata;
1667
1668                         /* curve's dependencies */
1669                         // XXX: these needs geom data, but where is geom stored?
1670                         if (cu->bevobj) {
1671                                 ComponentKey bevob_key(&cu->bevobj->id, DEG_NODE_TYPE_GEOMETRY);
1672                                 build_object(cu->bevobj);
1673                                 add_relation(bevob_key, geom_key, "Curve Bevel");
1674                         }
1675                         if (cu->taperobj) {
1676                                 ComponentKey taperob_key(&cu->taperobj->id, DEG_NODE_TYPE_GEOMETRY);
1677                                 build_object(cu->taperobj);
1678                                 add_relation(taperob_key, geom_key, "Curve Taper");
1679                         }
1680                         if (object->type == OB_FONT) {
1681                                 if (cu->textoncurve) {
1682                                         ComponentKey textoncurve_key(&cu->textoncurve->id, DEG_NODE_TYPE_GEOMETRY);
1683                                         build_object(cu->textoncurve);
1684                                         add_relation(textoncurve_key, geom_key, "Text on Curve");
1685                                 }
1686                         }
1687                         break;
1688                 }
1689
1690                 case OB_SURF: /* Nurbs Surface */
1691                 {
1692                         break;
1693                 }
1694
1695                 case OB_LATTICE: /* Lattice */
1696                 {
1697                         break;
1698                 }
1699         }
1700
1701         /* ShapeKeys */
1702         Key *key = BKE_key_from_object(object);
1703         if (key) {
1704                 build_shapekeys(obdata, key);
1705         }
1706 }
1707
1708 /* Cameras */
1709 // TODO: Link scene-camera links in somehow...
1710 void DepsgraphRelationBuilder::build_camera(Object *object)
1711 {
1712         Camera *cam = (Camera *)object->data;
1713         ID *camera_id = &cam->id;
1714         if (camera_id->tag & LIB_TAG_DOIT) {
1715                 return;
1716         }
1717         camera_id->tag |= LIB_TAG_DOIT;
1718         /* DOF */
1719         if (cam->dof_ob) {
1720                 ComponentKey ob_param_key(&object->id, DEG_NODE_TYPE_PARAMETERS);
1721                 ComponentKey dof_ob_key(&cam->dof_ob->id, DEG_NODE_TYPE_TRANSFORM);
1722                 add_relation(dof_ob_key, ob_param_key, "Camera DOF");
1723         }
1724 }
1725
1726 /* Lamps */
1727 void DepsgraphRelationBuilder::build_lamp(Object *object)
1728 {
1729         Lamp *la = (Lamp *)object->data;
1730         ID *lamp_id = &la->id;
1731         if (lamp_id->tag & LIB_TAG_DOIT) {
1732                 return;
1733         }
1734         lamp_id->tag |= LIB_TAG_DOIT;
1735         /* lamp's nodetree */
1736         if (la->nodetree != NULL) {
1737                 build_nodetree(la->nodetree);
1738                 ComponentKey parameters_key(lamp_id, DEG_NODE_TYPE_PARAMETERS);
1739                 ComponentKey nodetree_key(&la->nodetree->id, DEG_NODE_TYPE_PARAMETERS);
1740                 add_relation(nodetree_key, parameters_key, "NTree->Lamp Parameters");
1741         }
1742         /* textures */
1743         build_texture_stack(la->mtex);
1744 }
1745
1746 void DepsgraphRelationBuilder::build_nodetree(bNodeTree *ntree)
1747 {
1748         if (!ntree)
1749                 return;
1750
1751         ID *ntree_id = &ntree->id;
1752
1753         build_animdata(ntree_id);
1754
1755         OperationKey parameters_key(ntree_id,
1756                                     DEG_NODE_TYPE_PARAMETERS,
1757                                     DEG_OPCODE_PARAMETERS_EVAL);
1758
1759         /* nodetree's nodes... */
1760         BLI_LISTBASE_FOREACH (bNode *, bnode, &ntree->nodes) {
1761                 ID *id = bnode->id;
1762                 if (id == NULL) {
1763                         continue;
1764                 }
1765                 ID_Type id_type = GS(id->name);
1766                 if (id_type == ID_MA) {
1767                         build_material((Material *)bnode->id);
1768                 }
1769                 else if (id_type == ID_TE) {
1770                         build_texture((Tex *)bnode->id);
1771                 }
1772                 else if (id_type == ID_IM) {
1773                         /* nothing for now. */
1774                 }
1775                 else if (id_type == ID_OB) {
1776                         build_object((Object *)id);
1777                 }
1778                 else if (id_type == ID_SCE) {
1779                         /* Scenes are used by compositor trees, and handled by render
1780                          * pipeline. No need to build dependencies for them here.
1781                          */
1782                 }
1783                 else if (id_type == ID_TXT) {
1784                         /* Ignore script nodes. */
1785                 }
1786                 else if (bnode->type == NODE_GROUP) {
1787                         bNodeTree *group_ntree = (bNodeTree *)id;
1788                         if ((group_ntree->id.tag & LIB_TAG_DOIT) == 0) {
1789                                 build_nodetree(group_ntree);
1790                                 group_ntree->id.tag |= LIB_TAG_DOIT;
1791                         }
1792                         OperationKey group_parameters_key(&group_ntree->id,
1793                                                           DEG_NODE_TYPE_PARAMETERS,
1794                                                           DEG_OPCODE_PARAMETERS_EVAL);
1795                         add_relation(group_parameters_key, parameters_key, "Group Node");
1796                 }
1797                 else {
1798                         BLI_assert(!"Unknown ID type used for node");
1799                 }
1800         }
1801 }
1802
1803 /* Recursively build graph for material */
1804 void DepsgraphRelationBuilder::build_material(Material *ma)
1805 {
1806         ID *ma_id = &ma->id;
1807         if (ma_id->tag & LIB_TAG_DOIT) {
1808                 return;
1809         }
1810         ma_id->tag |= LIB_TAG_DOIT;
1811
1812         /* animation */
1813         build_animdata(ma_id);
1814
1815         /* textures */
1816         build_texture_stack(ma->mtex);
1817
1818         /* material's nodetree */
1819         if (ma->nodetree != NULL) {
1820                 build_nodetree(ma->nodetree);
1821                 OperationKey ntree_key(&ma->nodetree->id,
1822                                        DEG_NODE_TYPE_PARAMETERS,
1823                                        DEG_OPCODE_PARAMETERS_EVAL);
1824                 OperationKey material_key(&ma->id,
1825                                           DEG_NODE_TYPE_SHADING,
1826                                           DEG_OPCODE_PLACEHOLDER,
1827                                           "Material Update");
1828                 add_relation(ntree_key, material_key, "Material's NTree");
1829         }
1830 }
1831
1832 /* Recursively build graph for texture */
1833 void DepsgraphRelationBuilder::build_texture(Tex *tex)
1834 {
1835         ID *tex_id = &tex->id;
1836         if (tex_id->tag & LIB_TAG_DOIT) {
1837                 return;
1838         }
1839         tex_id->tag |= LIB_TAG_DOIT;
1840
1841         /* texture itself */
1842         build_animdata(tex_id);
1843
1844         /* texture's nodetree */
1845         build_nodetree(tex->nodetree);
1846 }
1847
1848 /* Texture-stack attached to some shading datablock */
1849 void DepsgraphRelationBuilder::build_texture_stack(MTex **texture_stack)
1850 {
1851         int i;
1852
1853         /* for now assume that all texture-stacks have same number of max items */
1854         for (i = 0; i < MAX_MTEX; i++) {
1855                 MTex *mtex = texture_stack[i];
1856                 if (mtex && mtex->tex)
1857                         build_texture(mtex->tex);
1858         }
1859 }
1860
1861 void DepsgraphRelationBuilder::build_compositor(Scene *scene)
1862 {
1863         /* For now, just a plain wrapper? */
1864         build_nodetree(scene->nodetree);
1865 }
1866
1867 void DepsgraphRelationBuilder::build_gpencil(bGPdata *gpd)
1868 {
1869         /* animation */
1870         build_animdata(&gpd->id);
1871
1872         // TODO: parent object (when that feature is implemented)
1873 }
1874
1875 void DepsgraphRelationBuilder::build_cachefile(CacheFile *cache_file)
1876 {
1877         /* Animation. */
1878         build_animdata(&cache_file->id);
1879 }
1880
1881 void DepsgraphRelationBuilder::build_mask(Mask *mask)
1882 {
1883         ID *mask_id = &mask->id;
1884         /* F-Curve animation. */
1885         build_animdata(mask_id);
1886         /* Own mask animation. */
1887         OperationKey mask_animation_key(mask_id,
1888                                         DEG_NODE_TYPE_ANIMATION,
1889                                         DEG_OPCODE_MASK_ANIMATION);
1890         TimeSourceKey time_src_key;
1891         add_relation(time_src_key, mask_animation_key, "TimeSrc -> Mask Animation");
1892         /* Final mask evaluation. */
1893         ComponentKey parameters_key(mask_id, DEG_NODE_TYPE_PARAMETERS);
1894         add_relation(mask_animation_key, parameters_key, "Mask Animation -> Mask Eval");
1895 }
1896
1897 void DepsgraphRelationBuilder::build_movieclip(MovieClip *clip)
1898 {
1899         /* Animation. */
1900         build_animdata(&clip->id);
1901 }
1902
1903 }  // namespace DEG