This class represents a child class of VG_ExternalController.

If you haven’t yet, have a short look at VG_ExternalControllerManager on the purpose of a VG_ExternalController.


This is an external controller class that supports any SteamVR/OpenVR controller as an external controller. Examples are the Valve Knuckles controller or also the Oculus Touch controllers. Note that SteamVR only supports Windows, there is no Android support for SteamVR.

The following requirements have to be met to be able to use this controller:

  • You have Steam and the corresponding SteamVR SDK installed on your computer.
  • You have the SteamVR Unity plugin imported into your Unity project.
  • You have OpenVR Loader selected in Unity XR Management Project Settings.

If these requirements are met, you will be able to use the “VG_EC_SteamHand” controller profile to setup your MyVirtualGrasp configuration (otherwise an error will appear on the console).

VG Controller profile in Unity.
VG Controller profile in Unity.


Hand Poses

All finger bones are mapped.

Will be controlled through Valve.VR controller system, such as SteamVR_Action_Skeleton.

Grab Signals

will be controlled through the finger configuration (i.e. their state of bending).