Silo is a 3D modeling program, a program that focuses on the construction
and sculpting of shapes in 3D for use in design, animation, video game
creation, and idea communication. Silo does not have a built-in renderer,
but can be linked directly to several external renderers for one-click
rendering. Silo also allows export to most major 3D animation and
rendering packages through obj, 3ds, dxf, rib, and pov export.