3Delight is a very fast RenderMan-compliant renderer designed to produce photorealistic images for serious production environments. Some of its features include ray tracing, global illumination, motion blur, depth of field, subdivision surfaces, programmable shaders, quality antialiasing, and antialiased multi-depth shadow maps. The API and the shading language are very similar to what is described in the RenderMan interface documentation.
54321 is five games in four, three, or two dimensions for one player. 54321 takes five classic two-dimensional puzzle games and extends them into three and four dimensions. 54321 was created for the 1mb SDL Game Programming Contest sponsored by Linux Journal, Loki Software, and No Starch Press.