Constructive Solid Geometry (CSG) is a modeling technique that uses Boolean operations like union and intersection to combine 3D solids. This library implements CSG operations on meshes elegantly and concisely using BSP trees, and is meant to serve as an easily understandable implementation of the algorithm.
This library provides three CSG operations: union, subtract, and intersect
Literally bridging the gap between 2D and 3D games, Ortho Robot is a perspective based puzzle game, where you flatten the view to move across gaps. Your objective is to reach the ending green block (either by standing directly on it or standing on it in relative space). For some extra challenge, try to collect all coins and perfect your time, steps and number of warps.
Photosynth most likely is not unknown to you (mentioned it quite a few times already), but the first part of the demo on Seadragon might have been. Damn impressive demo! Think of the new marketing aspects when using Seadragon to read a newspaper (which is demonstrated)