InputDeviceRole vs XRNode for getting hand devices

Is there any difference between the following methods for getting a hand device? Or do they return the same device result all the time?

Code (CSharp):

1. List<InputDevice> leftHandDevices = new List<InputDevice>();
2. UnityEngine.XR.InputDevices.GetDevicesWithRole(UnityEngine.XR.InputDeviceRole.LeftHanded, leftHandDevices);
3.  

Code (CSharp):

1. List<InputDevice> leftHandDevices = new List<InputDevice>();
2. UnityEngine.XR.InputDevices.GetDevicesAtXRNode(UnityEngine.XR.XRNode.LeftHand, leftHandDevices);

If they are identical, it seems confusing to have two methods; and XRNode.LeftHand, XRNode.RightHand should be removed?

 

Ah, makes sense. Thanks for clarifying!

 

I just attempted implementing device tracking in Unity 2019.4 using the XRNode API and the XRNodeState class. I was confused that it wasn't working. The documentation doesn't state anything about the XRNode system being deprecated save some of the older methods. Can the documentation at least be updated so that developers know to use the InputDevices API instead?

 

This pissed me off to no extent, started writing a simple test using the documentation and wondered why it wasn't working.

 

The person who answered is wrong from what I can tell... when I try to use the method they said is going to remain after the other is deprecated, Unity actually tells me that that is going to be deprecated and doesn't give me that warning on the XRNode method. I think they got them mixed up. Makes sense, because the XRNode is much newer from what I can tell, and that is the way they are trying to go with everything else.

Edit: I was wrong. Both are obsolete. Use Characteristics instead of Roles or Nodes. Example in unity docs for XR Input.

 

How would I then use GetLocalPosition() on the device in the list with this method?