Fix T66378: Missing animation update when switching view layer

Current frame is stored in a scene, and scene might have multiple view
layers. The inactive view layers were not informed about scene's frame
being changed, so when user switched back to view after changing scene
frame it was in an inconsistent state between current scene frame and
animation.

Now we tag scene for time changes, so dependency graph can catch up
and do proper update.

Currently tagging is from quite generic place. Probably better approach
would be to tag from where frame is actually being assigned. Downside
of this is that it's easy to miss some places.

Reviewers: brecht, mont29

Reviewed By: brecht

Maniphest Tasks: T66378

Differential Revision: https://developer.blender.org/D5332

1 files changed, 2 insertions, 0 deletions

diff --git a/source/blender/depsgraph/intern/depsgraph_eval.cc b/source/blender/depsgraph/intern/depsgraph_eval.cc
index 6f3262174b4..f519fe76724 100644
--- a/source/blender/depsgraph/intern/depsgraph_eval.cc
+++ b/source/blender/depsgraph/intern/depsgraph_eval.cc
@@ -61,6 +61,7 @@ void DEG_evaluate_on_refresh(Depsgraph *graph)
     BKE_scene_frame_set(deg_graph->scene_cow, deg_graph->ctime);
   }
   DEG::deg_evaluate_on_refresh(deg_graph);
+  deg_graph->need_update_time = false;
 }
 
 /* Frame-change happened for root scene that graph belongs to. */
@@ -79,6 +80,7 @@ void DEG_evaluate_on_framechange(Main *bmain, Depsgraph *graph, float ctime)
   }
   /* Perform recalculation updates. */
   DEG::deg_evaluate_on_refresh(deg_graph);
+  deg_graph->need_update_time = false;
 }
 
 bool DEG_needs_eval(Depsgraph *graph)