This is a really cool 3-D graphics engine that was originally authored in Java which has now been ported to J#. You can download the J# version here: http://www.mech.upatras.gr/~robgroup/3D/idx3d/

Thanks to Peter Walser (original idx3d author) and George Birbilis (J# port author) for the link.

Some other cool Java community projects that have been ported to the .NET Framework by way of J# include:
- Naked Objects framework
- TCL / JACL
- And one of my personal favorites, TurtleTracks Logo. (I sure wish I still had my Logo projects from 5th grade...)

If you know of other similar J# projects please let me know, I'm always interested in checking them out.