It's definitely not on layers. There's a weird perspective illusion vertically but it's not parallax and you can't "see around corners" vertically. It's a lenticular effect, horizontal only. Check out the Vimeo holographic channel: https://vimeo.com/channels/thelookingglass Each video is a 5x9 matrix and each view is a different angle. If you're working with a 3D object and not a video it's the same deal - it has to be rendered from 45 different perspectives and these are sent to the device separately.

There is no vertical parallax, just horizontal.