From the homepage: "Light Speed! is an OpenGL-based program developed to illustrate the effects of special relativity on the appearance of moving objects." It's pretty funky. Here's an ebuild for it. It's quite straightforward. The only real oddity is that there's a second tarball to download which contains a few 3d models you can use in the program. Enjoy!
Created attachment 6883 [details] lightspeed-1.2a.ebuild Here's the ebuild.
added in cvs http://cvs.gentoo.org/cgi-bin/viewcvs.cgi/gentoo-x86/app- sci/lightspeed/lightspeed-1.2a.ebuild?rev=1.1&content-type=text/vnd.viewcvs- markup thx