Display the MESA shelf and click on the Layer Editor Icon.

MESA Layer Editor icon

Just click on the Ref/phy Layer button.

Create Layer Window

From the Layer Editor do a right click on the reference layer and choose Membership.

  • On the left column, select Reference layer
  • On the right column, select the model node and the model Shape node.

Maya RelationShip Editor

If the shape node is not included, the geometry will not be exported correctly in SMD Reference format.