Open Simplex Noise

This is an implementation of 2D, 3D, and 4D open simplex noise in crystal.

Original work by doughsay.

Installation

Add this to your application's shard.yml:

dependencies:
  open-simplex-noise:
    github: j8r/crystal-open-simplex-noise

Usage

require "open-simplex-noise"

Instantiate a noise generator using an Int64 seed:

noise = OpenSimplexNoise.new(12345_i64)

Use the generate method, passing in either 2, 3, or 4 Float64s to generate noise:

noise.generate(1.0, 2.0) #=> -0.08284024020120388

Documentation

https://j8r.github.io/crystal-open-simplex-noise

Examples

2D Noise:

3D Noise (2D slice):

4D Noise (2D slice):

Credits

doughsay Chris Dosé - original creator

This is mostly just a transliteration of the Python version from here: https://github.com/lmas/opensimplex, which itself is a transliteration of Kurt Spencer's original code (released to the public domain).

License

MIT