Raytracing rendering engine written in Java. Plug it into a modeling environment, or programmatically create a scene. Uses Constructive Solid Geometries (CSG), bounding boxes, and fully extensible design (at least eventually).
The JitOgre Project is a Jitter external for Cycling 74's Max graphical data flow language, which embeds the Ogre3D rendering engine, exposing its functionality to the Max-Jitter environment.