Moonlight|3D is a modeling and animation tool for three-dimensional art. It currently supports mesh-based modeling. It's a redesign of Moonlight Atelier, formed after Moonlight Atelier/Creator died in 1999/2000. Rendering is done through pluggable backends. It currently supports Sunflow, with support for RenderMan and others in planning.
encapsulate provides its client process the same environment it's started in, except for some limitations: encapsulate remounts the whole filesystem read-only, except for user-selectable regions which are mounted read-write. It also isolates the process from the system's process table, network interface, IPC, and shared memory tables.