An essential reference for 3D computer graphics.
I compiled the equations, diagrams, and code that I most reference into this app and then added 12 chapters of lecture notes from the college course that I teach. Available in iOS app and Windows, OS X, Android, and Linux web editions.
3D architectural design made simple and fun.
Tour your creations, take pictures, record videos, and even print real 3D models. I expect to release the beta for Windows and OS X in 2015.