BRL-CAD is a powerful cross-platform constructive solid geometry solid modeling system that includes an interactive geometry editor, ray-tracing for rendering & geometric analyses, network distributed framebuffer support, image & signal-processing tools.
An extensible framework for distributed computing on P2P grids. We support peaceful free and open research and build an internet supercomputer. We render movies, solve Eternity puzzles, predict climate and improve a ~30 GHz cluster of clients.
FNServer is image collaboration software for web servers written for PHP4/5 implementing the FotoNotes(TM) image annotation specification. Modular and object-oriented, FNServer runs stand-alone or as a part of other CMS's. Offers blog and wiki features.