The Vision Egg is a high level interface between Python and OpenGL. In addition to methods for automatic generation of traditional visual stimuli such as sinusoidal gratings and random dot patterns, it has a number of functions for moving numeric data, images, movies, text, and 3D objects to and from your video card and allowing use of some of its features like perspective distortion. Therefore, it is also useful for anyone wishing to make use of the features of today's graphics cards.
*** Bug 155702 has been marked as a duplicate of this bug. ***
seems this request hasn't turned into an ebuild yet. If you want to help with it, it's not that hard to write one: http://devmanual.gentoo.org/quickstart/index.html
If you need further help, feel free to ask on forums or #gentoo-dev-help or #gentoo-sunrise on irc (latter is also useful if you want to maintain the app yourself)
note: we're not turning you down for this request in any way, it's just that we don't have ressources to fix all of them. though if you're willing to help, it would be more than nice to do so, as that is what we definately need :)