public EventManagerClickSample()
{
InitializeComponent();
Setup3DObjects();
// EventManager3D checks the hit 3D object only on mouse events.
// But when camera is changed, this can also change the 3D object that is behind the mouse.
// To support that can subscribe to CameraChanged and in event handler call UpdateHitObjects method.
Camera1.CameraChanged += delegate(object sender, CameraChangedRoutedEventArgs args)
{
_eventManager3D.UpdateHitObjects();
};
}