The Geometry Attribute Node is used to specify various parameters for a given object, such as the color, visibility, displacement, motion blur, lights to use to light the attached objects, and this includes RenderMan related attributes. Geometry attribute nodes are created and assigned inside the 3Delight Assignment Panel.
Geometry Attribute Node - Created empty
Geometry Attribute Nodes are created empty; it contains no attributes at all. It is an empty container where one can add just the relevant attributes. This avoids cluttering the UI and allows attribute inheritance. Attributes can be added and removed using Add / Remove Attributes button, which brings up the The Add / Remove Attributes Window. Right-click on the Add / Remove Attributes button instead offers the same functionality through popup menus, which are more convenient when only one attribute or attribute group needs to be added or removed.
Some of the attributes available in the Geometry Attribute Node clash with the Maya Render Stats attributes. The attributes defined in a Geometry Attribute Node attached to an object will override the related Maya Render Stats attributes. Refer to Maya Render Stats and 3Delight Attributes for more details.