A tool for visualizing regular polytopes in stereographic projection. Capabilities include: a large database of Coxeter polytopes, 6-axis motion control, animation, fly-though, stereo viewing, high-res capture, depth-blur, and many style options.
Freestyle is a software for Non-Photorealistic Line Drawing rendering from 3D scenes. Inspired by Pixar's Renderman, it is designed as a programmable interface to allow maximum control over the style of the output image.