diff options
Diffstat (limited to 'source')
| -rw-r--r-- | source/blender/editors/mesh/editmesh_undo.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/source/blender/editors/mesh/editmesh_undo.c b/source/blender/editors/mesh/editmesh_undo.c index 46a056f865b..5d573271ea3 100644 --- a/source/blender/editors/mesh/editmesh_undo.c +++ b/source/blender/editors/mesh/editmesh_undo.c @@ -687,11 +687,15 @@ static void undomesh_to_editmesh(UndoMesh *um, Object *ob, BMEditMesh *em, Key * .active_shapekey = um->shapenr, })); + /* Normals should not be stored in the undo mesh, so recalculate them. The edit + * mesh is expected to have valid normals and there is no tracked dirty state. */ + BLI_assert(BKE_mesh_vertex_normals_are_dirty(&um->me)); + BM_mesh_normals_update(bm); + em_tmp = BKE_editmesh_create(bm); *em = *em_tmp; - /* Calculate face normals and tessellation at once since it's multi-threaded. - * The vertex normals are stored in the undo-mesh, so this doesn't need to be updated. */ + /* Calculate face normals and tessellation at once since it's multi-threaded. */ BKE_editmesh_looptri_calc_ex(em, &(const struct BMeshCalcTessellation_Params){ .face_normals = true, |