"The Persistence of Vision Raytracer is a high-quality, totally free tool for creating stunning three-dimensional graphics." At this site, users can download the POV-Ray software for Windows, Macintosh, and Linux platforms. Source code is also available. Extensive documentation is provided online, but unfortunately there is not yet a downloadable version for offline viewing. Even people who are not interested in using the software will likely be interested in the online gallery of images selected to be in the hall of fame.