https://docs.google.com/spreadsheets/d/194IVZR_xLVsw5H0zJZ7CWuimOQA_n8KU2eeIZBDwIH0/edit#gid=0

http://heman.readthedocs.org/en/latest/generate.html#archipelagos

http://amd-dev.wpengine.netdna-cdn.com/wordpress/media/2012/10/Tatarchuk-Noise(GDC07-D3D_Day).pdf

http://www.campi3d.com/External/MariExtensionPack/help/MARI%20Extension%20Pack.html?Understandingsomebasicnoiseterms.html
http://www.gamedev.net/page/resources/_/technical/graphics-programming-and-theory/white-paper-procedural-terrain-generation-with-r2452

http://www.iquilezles.org/www/articles/warp/warp.htm
http://www.iquilezles.org/www/articles/morenoise/morenoise.htm

https://github.com/NVIDIAGameWorks/OpenGLSamples/blob/master/samples/es3aep-kepler/TerrainTessellation/assets/shaders/noise.glsl