diff options
author | Bastien Montagne <bastien@blender.org> | 2020-10-27 13:34:37 +0300 |
---|---|---|
committer | Bastien Montagne <bastien@blender.org> | 2020-10-27 17:27:07 +0300 |
commit | 90e12e823ff0b1940e8ca8131191914a3a2be007 (patch) | |
tree | 1b994cfd059b89a8d42e65a214bc860c269a3859 /source/blender/editors/sculpt_paint/sculpt_undo.c | |
parent | f6990c235ab9cfc8750d412e931f6f03cd28177d (diff) |
Fix T81854: crash when undoing switch between sculpt and edit mode.
The logic of `BKE_sculpt_update_object_for_edit` was not correct. such
low-level functions should typically never preform depsgraph evaluation
themselves, they should be able to rely on getting a fully evaluated
depsgraph and just get needed data from there.
Supporting that required fixing other broken code higher in the
callstack, namely:
* `ED_object_sculptmode_enter_ex` was freeing evaluated data, for no
valid reason it would seem.
* `sculpt_undosys_step_decode` was ensuring an evaluated depsgraph
**before** calling `ED_object_mode_generic_exit`, which would
invalidate a lot of evaluated data.
Note that it is fairly difficult to track down all code paths leading to
`BKE_sculpt_update_object_for_edit`, so there may be still cases where
this gets called with improperly evaluated depsgraph.
Reviewed By: sergey
Maniphest Tasks: T81854
Differential Revision: https://developer.blender.org/D9270
Diffstat (limited to 'source/blender/editors/sculpt_paint/sculpt_undo.c')
-rw-r--r-- | source/blender/editors/sculpt_paint/sculpt_undo.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/source/blender/editors/sculpt_paint/sculpt_undo.c b/source/blender/editors/sculpt_paint/sculpt_undo.c index f1410ffad1b..f4f30c903aa 100644 --- a/source/blender/editors/sculpt_paint/sculpt_undo.c +++ b/source/blender/editors/sculpt_paint/sculpt_undo.c @@ -1477,8 +1477,6 @@ static void sculpt_undosys_step_decode( { Scene *scene = CTX_data_scene(C); ViewLayer *view_layer = CTX_data_view_layer(C); - /* Sculpt needs evaluated state. */ - BKE_scene_view_layer_graph_evaluated_ensure(bmain, scene, view_layer); Object *ob = OBACT(view_layer); if (ob && (ob->type == OB_MESH)) { if (ob->mode & OB_MODE_SCULPT) { @@ -1486,6 +1484,12 @@ static void sculpt_undosys_step_decode( } else { ED_object_mode_generic_exit(bmain, depsgraph, scene, ob); + + /* Sculpt needs evaluated state. + * Note: needs to be done here, as #ED_object_mode_generic_exit will usually invalidate + * (some) evaluated data. */ + BKE_scene_graph_evaluated_ensure(depsgraph, bmain); + Mesh *me = ob->data; /* Don't add sculpt topology undo steps when reading back undo state. * The undo steps must enter/exit for us. */ |