An Open Source CSG solid modeling system with ray tracing support for rendering and geometric analysis, network distributed framebuffer support, image-processing and signal-processing tools.

Ships physical realizations in a variety of materials of uploaded models. Includes available materials, formats accepted, pricing, tutorials, and support.

Modelling software that supports NURBS, polygonal modeling, and subdivision surfaces, available for Windows and Macintosh.

Developers of the ActiveSolid 3D solid modeling, CAD prototyping and mark-up sharware application and the underlying BspSolid modelling library.

3D modeling, unfolding and unwrapping program for Macintosh and Windows.