private void CognitiveVR_Manager_TickEvent()
{
if (helper == null) //if there's a scene change and camera is destroyed, replace helper
{
helper = CameraTransform.gameObject.AddComponent <CommandBufferHelper>();
helper.Initialize(rt, CameraComponent, OnHelperPostRender);
}
Vector3 viewport = GetViewportGazePoint();
viewport.z = 100;
var viewportray = CameraComponent.ViewportPointToRay(viewport);
helper.Begin(GetViewportGazePoint(), viewportray);
}