Welcome to the OpenSceneGraph (OpenSG) library development fork by DataSolid GmbH Mönchengladbach. The repository is originally forked from the official OpenSG repository.
The library is licensed under the
GNU LIBRARY GENERAL PUBLIC LICENSE Version 2, June 1991
Copyright (C) 1991 Free Software Foundation, Inc. 675 Mass Ave, Cambridge, MA 02139, USA Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed.
The COPYING details the license issues.