Depsgraph fix for editing linked Objects with the other instances being

in other layers (or hidden with local view).

In my search for the absolute minimum of recalculations, changes are only
flushed when they're visible. On changing layers, the tags then are just
set again (for everything that potentially moves) to ensure proper state.

However, it didn't work proper for linked Mesh objects that changed in
editmode, the Derivedmesh callback then accessed memory out of bounds.

The current dependency code was more designed for animation systems...
updating display data should work too, but might need some more tests!

(Thanks Andrea for clear error sample!)

1 files changed, 3 insertions, 0 deletions

diff --git a/source/blender/blenkernel/BKE_object.h b/source/blender/blenkernel/BKE_object.h
index a7e37425da7..2e4e4917de2 100644
--- a/source/blender/blenkernel/BKE_object.h
+++ b/source/blender/blenkernel/BKE_object.h
@@ -50,8 +50,11 @@ void copy_baseflags(void);
 void copy_objectflags(void);
 struct SoftBody *copy_softbody(struct SoftBody *sb);
 void update_base_layer(struct Object *ob);
+
 void free_object(struct Object *ob);
+void object_free_display(struct Object *ob);
 void object_free_modifiers(struct Object *ob);
+
 void unlink_object(struct Object *ob);
 int exist_object(struct Object *obtest);
 void *add_camera(void);