Ribs by Eugene Yakshin, (c) 2018.

This software is provided 'as-is', without any express or implied warranty.
In no event will the authors be held liable for any damages 
arising from the use of this software.

Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to redistribute it freely, 
subject to the following restrictions:

  1. The origin of this software must not be misrepresented; you must not
     claim that you wrote the original software. If you use this software
     in a product, an acknowledgment in the product documentation would be
     appreciated but is not required.
  2. This notice may not be removed or altered from any distribution.
  

VST is a trademark and software of Steinberg Media Technologies GmbH.
