Open-source head-tracking

So unless you are living under a rock, you have probably heard about the new VR-google craze soon to hit every hard-core gamers cave (e.g. Occulus Rift). We talked about the FOSS engine getting Occulus support before, and now that id software promised to release the Doom3 BFG Edition source code too, it looks like VR in FOSS games will become quite common soon.

However, hidden in the (flight-)sim genre another quite nice system has been developed, using only a (sufficient frames per second) webcam:

Popular

RubyWeekend, but also PyDay

Cortex Command releases code under the AGPL v3

Open Source Game Engines