UPDATE March 14, 2018
Repository and tracking officially moved to github. https://github.com/opticks-org/opticks
Sourceforge mailing lists are still in use.
Opticks is an open source remote sensing application and development framework.
Xenos Engine is an open source scriptable 3d simulation engine. Xenos provides a unified interface to a diverse collection of open source libraries, exposed to an easy to use scripting language.