This README is the one indexed from the repository at its latest ref, not from the tag for this version.

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