A raytracer, for the GameBoy Advance. Really.
Doesn't actually do anything yet. See License.txt for copyright (BSD).
Written by Peter Hajas.
A note on building:
This uses the pretty-easy-to-use devkitPro SDK found at http://devkitpro.org
You'll need to run their perl script to get everything you need.
You can find that at this page.