Simulation: add depsgraph relations for ids referenced by node tree

I'll really have to refactor `ntreeUpdateTree` soon to avoid scanning
all node trees multiple times.

1 files changed, 19 insertions, 0 deletions

diff --git a/source/blender/depsgraph/intern/builder/deg_builder_relations.cc b/source/blender/depsgraph/intern/builder/deg_builder_relations.cc
index 2fb67010bb0..e0e35c88af2 100644
--- a/source/blender/depsgraph/intern/builder/deg_builder_relations.cc
+++ b/source/blender/depsgraph/intern/builder/deg_builder_relations.cc
@@ -2634,6 +2634,25 @@ void DepsgraphRelationBuilder::build_simulation(Simulation *simulation)
   OperationKey nodetree_key(
       &simulation->nodetree->id, NodeType::PARAMETERS, OperationCode::PARAMETERS_EXIT);
   add_relation(nodetree_key, simulation_eval_key, "NodeTree -> Simulation", 0);
+
+  LISTBASE_FOREACH (
+      PersistentDataHandleItem *, handle_item, &simulation->persistent_data_handles) {
+    if (handle_item->id == nullptr) {
+      continue;
+    }
+    build_id(handle_item->id);
+    if (GS(handle_item->id->name) == ID_OB) {
+      Object *object = (Object *)handle_item->id;
+      if (handle_item->flag & SIM_HANDLE_DEPENDS_ON_TRANSFORM) {
+        ComponentKey object_transform_key(&object->id, NodeType::TRANSFORM);
+        add_relation(object_transform_key, simulation_eval_key, "Object Transform -> Simulation");
+      }
+      if (handle_item->flag & SIM_HANDLE_DEPENDS_ON_GEOMETRY) {
+        ComponentKey object_geometry_key(&object->id, NodeType::GEOMETRY);
+        add_relation(object_geometry_key, simulation_eval_key, "Object Geometry -> Simulation");
+      }
+    }
+  }
 }
 
 void DepsgraphRelationBuilder::build_scene_sequencer(Scene *scene)