cmo/attribute_derive / sink_mo_name / [ src_mo_name ] cmo/attribute_union / sink_mo_name / src_mo_name
cmo/attribute_derive is used to give one mesh object (at least) the same set of attributes as another mesh object. This is useful, for example, for merging two mesh objects. Specifically, it looks at the set of attributes present in the source mesh, compares it to the set of attributes in the sink mesh, and adds to the sink mesh any attributes that it is missing.
cmo/attribute_union is a wrapper and executes attribute_derive twice, once in each direction and is used to give two mesh objects the same set of attributes as each other. This is useful, for example, for merging two mesh objects. Specifically, it looks at the set of attributes present in each mesh, compares it to the set of attributes in the other mesh, and makes it so each mesh posesses the union of the two sets of attributes.
sink_mo_name is the new or modified mesh object.
src_mo_name is mesh object to derive from. If no source mesh is
given, it will use the current mesh object. The attribute_union command needs both the sink and source meshes to be designated.
cmo/attribute_derive/cmo_sink/cmo_src
cmo/attribute_derive/empty_cmo
cmo/attribute_union/ cmo2 / cmo1