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Some of the screen captures are from the Elephants Dreams licensed under the Creative Commons Attribution 2.5. (c) copyright 2006, Blender Foundation / Netherlands Media Art Institute / www.elephantsdream.org

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Some of the screen captures are from the Caminandes licensed under the Creative Commons Attribution 3.0 Unported. (c) Copyright 2016, Blender Foundation / www.caminandes.com