The Blue Moon Rendering Tools is a collection of programs, documentation, bindings, and examples for creating photorealistic images using ray tracing and radiosity. It is free for non-commercial use. Pricing for commercial use is very reasonable. &BMRT adheres to Pixar's Renderman standard, so that a variety of high-end animation tools and converters can take advantage of its capabilities. It is an excellent package; visit http://www.seas.gwu.edu/student/gritz/bmrt.html for more information.