Fix T70126: Can't Snap To Vertex With Rigidbody

The idea is to ignore dependency which comes via rigid body solver.

Reviewers: mano-wii

Reviewed By: mano-wii

Differential Revision: https://developer.blender.org/D5900

1 files changed, 12 insertions, 0 deletions

diff --git a/source/blender/depsgraph/DEG_depsgraph_query.h b/source/blender/depsgraph/DEG_depsgraph_query.h
index 82f7f33411a..d72a462d8fd 100644
--- a/source/blender/depsgraph/DEG_depsgraph_query.h
+++ b/source/blender/depsgraph/DEG_depsgraph_query.h
@@ -236,9 +236,21 @@ void DEG_foreach_dependent_ID(const Depsgraph *depsgraph,
 
 /* Starts traversal from given component of the given ID, invokes callback for every other
  * component  which is directly on indirectly dependent on the source one. */
+enum {
+  /* Ignore transform solvers which depends on multiple inputs and affects final transform.
+   * Is used for cases like snapping objects which are part of a rigid body simulation:
+   * without this there will be "false-positive" dependnecies between transform components of
+   * objects:
+   *
+   *     object 1 transform before solver ---> solver ------> object 1 final transform
+   *     object 2 transform before solver -----^     \------> object 2 final transform
+   */
+  DEG_FOREACH_COMPONENT_IGNORE_TRANSFORM_SOLVERS,
+};
 void DEG_foreach_dependent_ID_component(const Depsgraph *depsgraph,
                                         const ID *id,
                                         eDepsObjectComponentType source_component_type,
+                                        int flags,
                                         DEGForeachIDComponentCallback callback,
                                         void *user_data);