One of the most popular mobile games in recent years was Pokemon Go, which displayed Pokemon characters overlaid over actual places when viewed through the iPhone camera. By aiming your iPhone camera at a park bench or a bush, you could see a Pokemon cartoon character as if it were really there.
This technology of displaying virtual objects over actual physical objects is known as augmented reality (AR). The idea behind augmented reality is to let you combine real-world objects with virtual objects that appear on your iPhone screen.
One use for augmented reality is to point your ...
