Author ====== This the work of Emil Persson, aka Humus. http://www.humus.name Downloaded from http://www.humus.name/index.php?page=Textures by David Eck, and converted to a smaller 512x512 size for use with WebGL in his free, on-line textbook at http://math.hws.edu/graphicsbook License ======= This work is licensed under a Creative Commons Attribution 3.0 Unported License. http://creativecommons.org/licenses/by/3.0/