POV is a ray-tracing application which is available for free, with the source code available under
GNU License, allowing for modification by it's more sophisticated users. Output from this program
is exceptional, and there is a large body of artists who support and enhance it's use with add-ons.

To demonstrate what this program is capable of, shown below are sample images created by past
winners of the Internet Ray Tracing Competition. These images are copyrighted by their originators,
and these previews are provided as an example of what may be achived with POV-Ray. The original
high resolution images are available for viewing, complete with artist's information, at the IRTC site.
CD sets are available which contain over 700 images, with source code and add-ons. Details at: