I am planning to develop an in-store navigation app for a retail store using AR Scene Kit. Hence, I want to programatically give the position of an xyz product which is available in the store irrespective of the camera's initial position. Kindly help me out. I was totally new to AR as well as Scene Kit, Hence guide me. As of now, I am able to add a SCNNode in the ARSCNView but the problem is It will be added based on my camera's initial position. Once this is done, then I need to give the in-store navigation for the selected product from my position inside the store. Its really urgent, please guide me asap.