1. Coin3D
  2. SoQt



SoQt is a Qt GUI component toolkit library for Coin.  It is also compatible
with SGI and TGS Open Inventor, and the API is based on the API of the
InventorXt GUI component toolkit.

The library is released publicly under the 3-clause BSD license (see COPYING).

SoQt is supported on UNIX, Win32 and Mac OS X platforms.