private void OnTrackingFound()
        {
            Renderer[] rendererComponents = GetComponentsInChildren <Renderer>(true);
            Collider[] colliderComponents = GetComponentsInChildren <Collider>(true);

            // Enable rendering:
            foreach (Renderer component in rendererComponents)
            {
                component.enabled = true;
            }

            // Enable colliders:
            foreach (Collider component in colliderComponents)
            {
                component.enabled = true;
            }
            a = a + 1;
            if (a == 1)
            {
                GameObject asdobj = GameObject.FindGameObjectWithTag("GameController");
                if (asdobj != null)
                {
                    yoo = asdobj.GetComponent <ObjectDisplay>();
                }
                if (yoo == null)
                {
                    Debug.Log("Cannot find 'Object Display' script");
                }

                yoo.Display();
            }

            Debug.Log("Trackable " + mTrackableBehaviour.TrackableName + " found");
        }