Imagin Raytracer is a multithreaded commandline raytracer
Imagin Raytracer is a portable and multithreaded raytracer designed to run on all Posix systems. With its many features and its ease of use, it makes it possible to create quickly realistic images and animations.
Seb's RayTracer is a 3D renderer. It runs on the commandline, taking camera, scenery, and output information from an XML file. It is currently a personal project that only runs on Cygwin and Linux.