PolkaNoise

// https://github.com/BrianSharpe/GPU-Noise-Lib/blob/master/gpu_noise_lib.glsl
//
//	Code repository for GPU noise development blog
//	http://briansharpe.wordpress.com
//	https://github.com/BrianSharpe
//
//	I'm not one for copyrights.  Use the code however you wish.
//	All I ask is that credit be given back to the blog or myself when appropriate.
//	And also to let me know if you come up with any changes, improvements, thoughts or interesting uses for this stuff. :)
//	Thanks!
//
//	Brian Sharpe
//	brisharpe CIRCLE_A yahoo DOT com
//	http://briansharpe.wordpress.com
//	https://github.com/BrianSharpe
//


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WhiteNoise from

Accidental Noise Library

  Copyright (C) 2011 Joshua Tippetts

  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 alter it and 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. Altered source versions must be plainly marked as such, and must not be
     misrepresented as being the original software.
  3. This notice may not be removed or altered from any source distribution.

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