I started work on a 3D engine for fast Java based machines, future-oriented. It uses pure Java code with AWT for drawing. It’s my 4th 3D engine.
There’s vector and matrix classes now with rotation and translation. No usable demo has been made yet.
Here’s the site :
Camera.java now contains a quaternion 3D rotation and movement functionality. There are quaternion and regular cos/sin matrix functions for use in 3D environments. I stole some pieces from the Game Prog wiki. It is very easy to understand the code.
Latest tarballs are here :
http://code.google.com/p/3djengine/downloads/list
https://dl.dropbox.com/u/100062163/pics/screenshot-3djengine.png
Enjoy.