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