UnityEngine.Physics.Raycast(UnityEngine.Vector3, UnityEngine.Vector3, out UnityEngine.RaycastHit)

private void Update()
    {

        GameObject oldFocusObject = FocusedObject;

        var headPosition = Camera.main.transform.position;
        var gazeDirection = Camera.main.transform.forward;

        RaycastHit hitInfo;
        if (Physics.Raycast(headPosition, gazeDirection, out hitInfo))
        {
            FocusedObject = hitInfo.collider.gameObject;
        }
        else
        {
            FocusedObject = null;
        }

        // If the focused object changed this frame, start detecting fresh gestures again.
        if (FocusedObject != oldFocusObject)
        {
            tapRecognizer.CancelGestures();
            tapRecognizer.StartCapturingGestures();
        }

        if (selectedGameObject != null)
        {
            SelectedObjectDebug.text = "Currently selected: " + selectedGameObject.name;

            //When SelectedGameObject is not null; we know it has a parent; So, we get the parent, getComponents of MSR and enable or disable

            GameObject parent = selectedGameObject.transform.parent.gameObject;

            var moveComponent = parent.GetComponent<MoveScript>();
            var rotateComponent = parent.GetComponent<RotateScript>();
            var scaleComponent = parent.GetComponent<ScaleScript>();

            JustToDebug.text = TransformMenu.instance.currentMode.ToString();

            switch (TransformMenu.instance.currentMode)
            {
                case TransformMenu.Mode.Move:
                    moveComponent.SetDragging(true);
                    rotateComponent.SetRotating(false);
                    scaleComponent.SetResizing(false);
                    break;
                case TransformMenu.Mode.Rotate:
                    rotateComponent.SetRotating(true);
                    moveComponent.SetDragging(false);
                    scaleComponent.SetResizing(false);
                    break;
                case TransformMenu.Mode.Scale:
                    scaleComponent.SetResizing(true);
                    moveComponent.SetDragging(false);
                    rotateComponent.SetRotating(false);
                    break;
                case TransformMenu.Mode.Reset:
                    Debug.Log("**************************Reset is enabled");
                    //TransformMenu.instance.currentMode = TransformMenu.Mode.None;
                    //Call the reset function

                    Debug.Log("Reset is Off~~~~~~~~~~~~~~~~~~~~~~~~~~~~~");
                    break;
                default:
                    scaleComponent.SetResizing(false);
                    moveComponent.SetDragging(false);
                    rotateComponent.SetRotating(false);
                    //Debug.Log("Nothing is enabled");
                    break;
            }
        }
        else
            SelectedObjectDebug.text = "Currently selected: None";
    }

private void Update()
    {
        
        GameObject oldFocusObject = FocusedObject;

        var headPosition = Camera.main.transform.position;
        var gazeDirection = Camera.main.transform.forward;

        RaycastHit hitInfo;
        if (Physics.Raycast(headPosition, gazeDirection, out hitInfo))
        {
            FocusedObject = hitInfo.collider.gameObject;
        }
        else
        {
            FocusedObject = null;
        }

        // If the focused object changed this frame, start detecting fresh gestures again.
        if (FocusedObject != oldFocusObject)
        {
            tapRecognizer.CancelGestures();
            tapRecognizer.StartCapturingGestures();
        }

        if (selectedGameObject != null)
        {

            //When SelectedGameObject is not null; we know it has a parent; So, we get the parent, getComponents of MSR and enable or disable

            GameObject parent = selectedGameObject.transform.parent.gameObject;

            var moveComponent = parent.GetComponent<MoveScript>();
            var rotateComponent = parent.GetComponent<RotateScript>();
            var scaleComponent = parent.GetComponent<ScaleScript>();

            switch (TransformMenu.instance.currentMode)
            {
                case TransformMenu.Mode.Move:
                    moveComponent.SetDragging(true);
                    rotateComponent.SetRotating(false);
                    scaleComponent.SetResizing(false);
                    break;
                case TransformMenu.Mode.Rotate:
                    rotateComponent.SetRotating(true);
                    moveComponent.SetDragging(false);
                    scaleComponent.SetResizing(false);
                    break;
                case TransformMenu.Mode.Scale:
                    scaleComponent.SetResizing(true);
                    moveComponent.SetDragging(false);
                    rotateComponent.SetRotating(false);
                    break;
                case TransformMenu.Mode.Reset:
                    Debug.Log("**************************Reset is enabled");
                    TransformMenu.instance.currentMode = TransformMenu.Mode.None;
                    //Call the reset function

                    Debug.Log("Reset is Off~~~~~~~~~~~~~~~~~~~~~~~~~~~~~");
                    break;
                default:
                    scaleComponent.SetResizing(false);
                    moveComponent.SetDragging(false);
                    rotateComponent.SetRotating(false);
                    //Debug.Log("Nothing is enabled");
                    break;
            }
        }
        else
        {
            //Currently, no object is selected.
        }
    }

[MenuItem ("CONTEXT/Transform/Snap to Ground")]
		private static void SnapToGround (MenuCommand command)
		{
			var transform = command.context as Transform;

			RaycastHit hit;
			if (Physics.Raycast (transform.position, Vector3.down, out hit))
			{
				Undo.RecordObject (transform, "Snapped To Ground");
				transform.position = hit.point;
			}
		}