Here are a few pics I just happened across from a project I was working on a couple years ago, my Nöo Daisen cybredeck - a large-form multitouch deck for input and a homebrew AR helmet for display, using a raspi3 to handle image processing for the touch input using FTIR (see http://wiki.nuigroup.com/FTIR ) and the pi noir camera, but performance was poor - I'll revisit this one in sundogforth someday for sure.