Moving a rigidbody with manipulation gestures

Idr

I am trying to use a GestureRecognizer to move my GameObject ManipulationObjectameObject which I've hooked up in Unity.

When I do a print statement in the PerformManipulationUpdate method, the Position value is almost always 0, or very close to it like 3E-5.

It's my understanding that the Vector3 position argument to ManipulationRecognizer_ManipulationUpdatedEvent will be the cumulative distance of the gesture, so I'm surprised it is always so small. When I apply the change to the object's position, there is no noticable change.

One thing to note is that I'm doing this in the emulator as my Hololens is out of office, so not sure if that's a factor.

Am I doing something stupid? Do I have a misunderstanding of some part of this?

Any help and pointers appreciated!

public class GestureManager : MonoBehaviour {
public GestureRecognizer ManipulationRecognizer { get; private set; }

    public Vector3 ManipulationPosition { get; private set; }

    public GameObject ManipulationObject;
    private Vector3 manipulationPreviousPosition;
    private Rigidbody rb;

    void Start()
    {
        rb = ManipulationObject.GetComponent<Rigidbody>();            
    }

    void Awake()
    {
        ManipulationRecognizer = new GestureRecognizer();
        ManipulationRecognizer.SetRecognizableGestures(GestureSettings.ManipulationTranslate);
        ManipulationRecognizer.ManipulationStartedEvent += ManipulationRecognizer_ManipulationStartedEvent;
        ManipulationRecognizer.ManipulationUpdatedEvent += ManipulationRecognizer_ManipulationUpdatedEvent;
        ManipulationRecognizer.ManipulationCompletedEvent += ManipulationRecognizer_ManipulationCompletedEvent;
        ManipulationRecognizer.ManipulationCanceledEvent += ManipulationRecognizer_ManipulationCanceledEvent;
        ManipulationRecognizer.StartCapturingGestures();
    }

    private void ManipulationRecognizer_ManipulationStartedEvent(InteractionSourceKind source, Vector3 position, Ray ray)
    {
        rb.isKinematic = true;
        manipulationPreviousPosition = position;
    }

    private void ManipulationRecognizer_ManipulationUpdatedEvent(InteractionSourceKind source, Vector3 position, Ray ray)
    {
        PerformManipulationUpdate(position);
    }

    private void ManipulationRecognizer_ManipulationCompletedEvent(InteractionSourceKind source, Vector3 position, Ray ray)
    {
        rb.isKinematic = false;
    }

    private void ManipulationRecognizer_ManipulationCanceledEvent(InteractionSourceKind source, Vector3 position, Ray ray)
    {
        rb.isKinematic = false;
    }

    void PerformManipulationUpdate(Vector3 position)
    {
        Vector3 moveVector = Vector3.zero;
        // 4.a: Calculate the moveVector as position - manipulationPreviousPosition.
        moveVector = position - manipulationPreviousPosition;
        // 4.a: Update the manipulationPreviousPosition with the current position.
        manipulationPreviousPosition = position;

        // 4.a: Increment this transform's position by the moveVector.
        ManipulationObject.transform.position += moveVector;        
      }
  }   

Reeley

I cant help you with manipulation, but i did something similar by changing the HandDraggable script.

You can get a look here

Its far from perfect tho because it gets tricky when you drag your object and move at the same time. Maybe someone has a better approach for this. Would be awesome

Reeley

I cant help you with manipulation, but i did something similar by changing the HandDraggable script.

You can get a look here

Its far from perfect tho because it gets tricky when you drag your object and move at the same time. Maybe someone has a better approach for this. Would be awesome