How To Get Acceleration From Motion Controller?

Hi,
I´m trying to get the acceleration from the motion controllers. I´m using only the XR API from Unity, because I want to keep it functional for all VR headsets.

With the following code I get just 0,0 back. Does anybody know how to archieve the correct value?

Code (CSharp):

1. void Start () {
2.         nodeStates = new List<XRNodeState>();
3.         List<XRNodeState> tempStates = new List<XRNodeState>();
4.         InputTracking.GetNodeStates(tempStates);
5.  
6.        
7.         foreach (XRNodeState state in tempStates)
8.         {
9.             if (state.nodeType == XRNode.LeftHand || state.nodeType == XRNode.RightHand)
10.                 nodeStates.Add(state);
11.         }
12.  
13.         InputDevice right = InputDevices.GetDeviceAtXRNode(XRNode.RightHand);
14.     }
15.      void Update () {
16.  
17.         foreach(XRNodeState node in nodeStates)
18.         {
19.             Vector3 acc = new Vector3();
20.             if(node.TryGetAcceleration(out acc))
21.                 print(node.nodeType + " " + acc);
22.         }
23.     }

 

Unfortunally there seems not to be a solution.
I´m using now a script from another user, he used for throwing objects in VR. See here.

My script is used for movement of the player, by accelerate / shaking the motion controllers. Here is my solution, if anybody needs it.

Code (CSharp):

1.  
2. public class Accelerometer : AController {
3.  
4.     private MeasureRotationVelocity right;
5.     private MeasureRotationVelocity left;
6.     private Quaternion previousRotation;
7.  
8.     public float movementSpeed;
9.  
10.  
11.     void Start () {
12.         GameObject rightController = GameObject.FindGameObjectWithTag("RightHand");
13.         GameObject leftController = GameObject.FindGameObjectWithTag("LeftHand");
14.  
15.         right = rightController.AddComponent<MeasureRotationVelocity>();
16.         left = leftController.AddComponent<MeasureRotationVelocity>();
17.  
18.         right.movementSpeed = movementSpeed;
19.         left.movementSpeed = movementSpeed;
20.     }
21.      void Update () {
22.  
23.         float velocity = right.velocity + left.velocity;
24.  
25.         if (velocity > 25)
26.             velocity /= 2;
27.  
28.         if(velocity > 10)
29.             MoveForward(velocity / 10);
30.  
31.     }
32.  
33.  
34.     public class MeasureRotationVelocity : MonoBehaviour
35.     {
36.         private Quaternion previousRotation;
37.  
38.         public float movementSpeed;
39.         public float velocity;
40.  
41.         void Update()
42.         {
43.             Quaternion deltaRotation = transform.rotation * Quaternion.Inverse(previousRotation);
44.  
45.             previousRotation = transform.rotation;
46.  
47.             float angle = 0.0f;
48.             Vector3 axis = Vector3.zero;
49.  
50.             deltaRotation.ToAngleAxis(out angle, out axis);
51.  
52.             angle *= Mathf.Deg2Rad;
53.  
54.             var angularVelocity = axis * angle * (movementSpeed / Time.deltaTime);
55.             velocity = angularVelocity.x;
56.  
57.             if (velocity < 0)
58.                 velocity = velocity * -1;
59.         }
60.     }
61. }