Simplex noise demystified Stefan Gustavson, Linköping University, Sweden (stegu@itn.liu.se), 2005-03-22 In 2001, Ken Perlin presented “simplex noise”, a replacement for his classic noise algorithm. Classic “Perlin noise” won him an academy award and has become an ubiquitous procedural primitive for computer graphics over the years, but in hindsight it has quite a few limitations. Ken Perlin himsel