luxblend25 : Blender 2.5 exporter for luxrender ( http://www.luxrender.net )
synfig : Film-Quality Vector Animation (core engine) ( http://www.synfig.org/ )
synfigstudio : Synfig: Film-Quality Vector Animation (main UI) ( http://www.synfig.com/ )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a nirvana
For Paludis use this rsync : rsync://gentoo.zugaina.org/nirvana-portage
If you have a problem : ycarus(-at-)zugaina.org