Sculpt: add .sculpt to allow_procedural_attribute_access

Also cleaned up a comment.

2 files changed, 5 insertions, 2 deletions

diff --git a/source/blender/blenkernel/intern/attribute_access.cc b/source/blender/blenkernel/intern/attribute_access.cc
index 1e237da8119..3d88ecb6167 100644
--- a/source/blender/blenkernel/intern/attribute_access.cc
+++ b/source/blender/blenkernel/intern/attribute_access.cc
@@ -56,7 +56,7 @@ const char *no_procedural_access_message =
 
 bool allow_procedural_attribute_access(StringRef attribute_name)
 {
-  return !attribute_name.startswith(".selection") && !attribute_name.startswith(".hide");
+  return !attribute_name.startswith(".sculpt") && !attribute_name.startswith(".selection") && !attribute_name.startswith(".hide");
 }
 
 static int attribute_data_type_complexity(const eCustomDataType data_type)
diff --git a/source/blender/editors/sculpt_paint/sculpt_ops.c b/source/blender/editors/sculpt_paint/sculpt_ops.c
index 0731e54d533..52bfa61cd95 100644
--- a/source/blender/editors/sculpt_paint/sculpt_ops.c
+++ b/source/blender/editors/sculpt_paint/sculpt_ops.c
@@ -309,7 +309,10 @@ static void sculpt_init_session(Main *bmain, Depsgraph *depsgraph, Scene *scene,
   ob->sculpt = MEM_callocN(sizeof(SculptSession), "sculpt session");
   ob->sculpt->mode_type = OB_MODE_SCULPT;
 
-  /* Necessary to make multires displacement immediately visible. */
+  /* Trigger evaluation of modifier stack to ensure
+   * multires modifier sets .runtime.ccg in
+   * the evaluated mesh.
+   */
   DEG_id_tag_update(&ob->id, ID_RECALC_GEOMETRY);
 
   BKE_scene_graph_evaluated_ensure(depsgraph, bmain);