| nodeStates | A list that is populated with XRNodeState objects. |
Describes all presently connected XR nodes and provides available tracking state.
Not all XR platforms provide complete tracking data. Use the properties XR.XRNodeState.positionAvailable, XR.XRNodeState.rotationAvailable, etc. to determine whether specific data is available for a tracked node. Also, this method will clear any members of the List passed before populating it.