source: osgVisual/LICENSE.txt @ 6

                OpenSceneGraph Public License, Version 0.0
                ==========================================
                
  Copyright (C) 2002 Robert Osfield.
  
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                       OPENSCENEGRAPH PUBLIC LICENCE
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  This library is free software; you can redistribute it and/or modify it
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  out in the wxWindows section below.  The LGPL is contained in the
  final section of this license.


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                wxWindows Library Licence, Version 3
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  Copyright (C) 1998 Julian Smart, Robert Roebling [, ...]

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