bumblebee : Service providing elegant and stable means of managing Optimus graphics chipsets ( http://bumblebee-project.org https://github.com/Bumblebee-Project/Bumblebee )
primus : Faster OpenGL offloading for Bumblebee ( https://github.com/amonakov/primus )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a seden
For Paludis use this rsync : rsync://gentoo.zugaina.org/seden-portage
If you have a problem : ycarus(-at-)zugaina.org