Augmented reality is possible with regular cameras, but 3D cameras add depth. One example Intel shows is a children's book that includes sound and other interactive features when placed in front of a 3D camera. When a user opens to a particular page a 3D scene pops up on screen. If a user moves the book closer to the camera, sounds from animals, for example, get louder. And a user can make it appear to snow by waving his hands over the book.