Interface to convert CAD Model (like Alias, Rhino, ...) into the internal CAD Modeler (CADKernel, ...) The derived class must also implement IAddXXXBrepModel according to the CAD model (IAddAliasBrepModel, IAddRhinoBrepModel, ...) The derived class is instantiated for an import session. It processes a subset of the model corresponding to a static mesh actor. The main step of the process is: