Refactor CDData masks, to have one mask per mesh elem type.

We already have different storages for cddata of verts, edges etc.,
'simply' do the same for the mask flags we use all around Blender code
to request some data, or limit some operation to some layers, etc.

Reason we need this is that some cddata types (like Normals) are
actually shared between verts/polys/loops, and we don’t want to generate
clnors everytime we request vnors!

As a side note, this also does final fix to T59338, which was the
trigger for this patch (need to request computed loop normals for
another mesh than evaluated one).

Reviewers: brecht, campbellbarton, sergey

Differential Revision: https://developer.blender.org/D4407

1 files changed, 2 insertions, 2 deletions

diff --git a/source/blender/depsgraph/intern/node/deg_node_id.h b/source/blender/depsgraph/intern/node/deg_node_id.h
index 9c3ce7580ad..bbf671790c7 100644
--- a/source/blender/depsgraph/intern/node/deg_node_id.h
+++ b/source/blender/depsgraph/intern/node/deg_node_id.h
@@ -84,8 +84,8 @@ struct IDNode : public Node {
 	uint32_t previous_eval_flags;
 
 	/* Extra customdata mask which needs to be evaluated for the mesh object. */
-	uint64_t customdata_mask;
-	uint64_t previous_customdata_mask;
+	DEGCustomDataMeshMasks customdata_masks;
+	DEGCustomDataMeshMasks previous_customdata_masks;
 
 	eDepsNode_LinkedState_Type linked_state;