LICENSE

GNU GENERAL PUBLIC LICENSE
                       Version 3, 29 June 2007

 Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
 Everyone is permitted to copy and distribute verbatim copies
 of this license document, but changing it is not allowed.

                            Preamble

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                     END OF TERMS AND CONDITIONS

=============================================================================

All files included in the XR Vessels repository are licensed under the GPL
license listed above except for the following dependencies below:

DEPENDENCIES

1) Portions of the XR vessel source code, mesh, and textures are based on 
and/or use modified portions of the original DeltaGlider sample vessel code
and assets, which are now licensed under the MIT license
(https://opensource.org/licenses/MIT). Orbiter's license as of 14-Aug-2021
is quoted below:

  Orbiter Space Flight Simulator
  
  MIT License
  
  Copyright 2000-2021 Martin Schweiger
  
  Permission is hereby granted, free of charge, to any person obtaining a copy
  of this software and associated documentation files (the "Software"), to deal
  in the Software without restriction, including without limitation the rights
  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  copies of the Software, and to permit persons to whom the Software is
  furnished to do so, subject to the following conditions:
  
  The above copyright notice and this permission notice shall be included in all
  copies or substantial portions of the Software.
  
  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  SOFTWARE.

----

2) The XR2's DLL loads the XR2's mesh at runtime. However, the mesh is not
necessary to build the XR vessel source, and the mesh remains freely
downloadable as part of every XR vessel release. The XR2's mesh and texture
files remain the copyright of their author, Steve Tyler (steve3d@gmail.com).

3) The XR3's mesh and textures were created by and are copyright 2016-2021
Grzegorz Lorens. However, he has granted explicit permission to release those
files as part of the XRVessels repository under this same GNU General Public
License Version 3.

END