System.Int32. An Int32 that specifies which subset of the mesh to draw. This value is used to differentiate faces in a mesh as belonging to one or more attribute groups.
Remarks
An attribute table is used to identify areas of the mesh that need to be drawn with different textures, render states and materials. The application can use the attribute table to hide portions of a mesh by leaving out a given attribute identifier (attributeID) when drawing the frame. Attribute tables can also be used for application defined purposes.