Individual Biped body part objects and the Vertical, Horizontal, and Turning tracks of the Biped_Vertical_Horizontal_Turn_Body_Matrix3_Controller use the Biped_Slave Controller.
This type of controller is attached to the transform track.
It is not always possible to get the controller via <biped_object>.transform.controller. The transform track is not exposed for all nodes but it is possible to get the controller via: <biped_object>.controller.
The name of the root node (COM) of the Biped system this bipslave_ctrl belongs to.
The root node (COM) of the Biped system this bipslave_ctrl belongs to.