MicroView 3D Engine by Presence

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**Present a spinning 3D object on the MicroView's display** This sketch uses a generic (but highly limited!) graphics engine with backface culling. Bits of source paraphrased from the BabylonJS project, Extremely Fast Line Algorithm and an MSDN tutorial. Edit "shape.h" to choose the object you would like to display. Sources: - http://blogs.msdn.com/b/davrous/archive/2013/06/13/tutorial-series-learning-how-to-write-a-3d-soft-engine-from-scratch-in-c-typescript-or-javascript.aspx - https://github.com/BabylonJS/ - http://www.edepot.com/algorithm.html