As of SIGGRAPH 2005, a noncommercial version of OpenRT will be released to the public. The version release will - for the moment - be a slightly limited, PC/Linux-only version of OpenRT. If you are interested in getting a copy, please subscribe to the "noncommercial" mailing list at

https://scihparg.cs.uni-sb.de/cgi-bin/mailman/listinfo/noncommercial .

You will then receive email providing you with a download link and some additional information.

Also make sure to read - and frequently check - the list of Frequently Asked Questions (FAQ).