Qt 5.0
LGPL
http://qt-project.org/


Assimp 3.0
3-clause BSD
http://assimp.sourceforge.net/


boost 1.53.0
Boost Software License
http://www.boost.org/


Python 2.6
Python Software Foundation License
http://www.python.org


SDL 1.2.14
GNU Lesser General Public License


SdlImage 1.2.10
GNU Lesser General Public License
http://www.libsdl.org/


glew 1.5.5
3-clause BSD license
http://glew.sourceforge.net/


OpenGLUT 0.6.3
License Free
http://openglut.sourceforge.net/


tinyxml 2.6.1
zlib/libpng
http://www.grinninglizard.com/tinyxml/index.html


meshio
https://sourceforge.jp/projects/meshio/
zlib/libpng


Topic - 30 Free Matcaps
http://community.thefoundry.co.uk/discussion/topic.aspx?f=32&t=73925


sIBL Archive
Free HDRI sets for smart Image-based Lighting
http://www.hdrlabs.com/sibl/archive.html
CC BY-NC-SA 3.0 US