Exemplo de uso das interfaces disponíveis no HoloToolkit

MeetupHololens.cs

public class CubeManager : MonoBehaviour, IInputClickHandler, INavigationHandler, ISpeechHandler
{
    public float RotationSensitivity = 10;
    public bool IsRotating = false;

    public void OnInputClicked(InputClickedEventData eventData)
    {
        gameObject.GetComponent<Renderer>().material.color = Color.red;
    }

    public void OnNavigationCanceled(NavigationEventData eventData)
    {
        InputManager.Instance.PopModalInputHandler();
    }

    public void OnNavigationCompleted(NavigationEventData eventData)
    {
        InputManager.Instance.PopModalInputHandler();
    }

    public void OnNavigationStarted(NavigationEventData eventData)
    {
        InputManager.Instance.PushModalInputHandler(gameObject);
    }

    public void OnNavigationUpdated(NavigationEventData eventData)
    {
        float rotationFactor_Y = eventData.NormalizedOffset.x * RotationSensitivity;
        float rotationFactor_X = eventData.NormalizedOffset.y * RotationSensitivity;

        transform.Rotate(new Vector3(rotationFactor_X, -1 * rotationFactor_Y, 0));
    }

    void ISpeechHandler.OnSpeechKeywordRecognized(SpeechEventData eventData)
    {
        if (eventData.RecognizedText.ToLower().Equals("start rotation"))
        {
            IsRotating = true;
        }
        if (eventData.RecognizedText.ToLower().Equals("stop rotation"))
        {
            IsRotating = false;
        }

        eventData.Use();
    }

    void Update()
    {
        if(IsRotating)
        {
            gameObject.transform.Rotate(1, 1, 1);
        }
    }
}