These ebuilds come from http://overlays.gentoo.org/proj/java.
If you have some problems, go to the official site first.
sunflow : A rendering system for photo-realistic image synthesis. ( http://sunflow.sourceforge.net/ )
sweethome3d : Sweet Home 3D is a free interior design application. ( http://sweethome3d.sourceforge.net/ )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a java-overlay
For Paludis use this rsync : rsync://gentoo.zugaina.org/java-overlay-portage
If you have a problem : ycarus(-at-)zugaina.org