Coin Logo Coin3D is Free Software,
published under the BSD 3-clause license.
SoXt Documentation

SoXt is an Xt/Motif glue library for Coin. It can also be used on top of the SGI or TGS implementation of Open Inventor, and is designed to be source code compatible with SGI's InventorXt library.

You will need either Motif (Open Motif) or Lesstif installed on your system to use SoXt.

The corresponding documentation for Coin is located here.

See also the documentation of the SoQt library for elaborate information on how a binding library such as this fits within a development system, and what features it offers.