Based on example code by Stefan Gustavson (stegu@itn.liu.se).
Optimisations by Peter Eastman (peastman@drizzle.stanford.edu).
Better rank ordering method by Stefan Gustavson in 2012.
This code was placed in the public domain by its original author,
Stefan Gustavson. You may use it as you see fit, but
attribution is appreciated.
This is an adaption of https://www.npmjs.com/package/fast-simplex-noise done by Jirka Dell'Oro-Friedl, HFU, 2021
Based on example code by Stefan Gustavson (stegu@itn.liu.se). Optimisations by Peter Eastman (peastman@drizzle.stanford.edu). Better rank ordering method by Stefan Gustavson in 2012.
This code was placed in the public domain by its original author, Stefan Gustavson. You may use it as you see fit, but attribution is appreciated.