Open this page at https://ch3mbot.github.io/pxt-noise/

Description

This extension adds several noise generators. Currently only javascript is supported.

Noise Generators

1D

• 1D Perlin noise
• 1D Perlin noise with hash function

2D

• 2D Perlin noise
• 2D Perlin noise with hash function
• 2D open simplex noise

Use as Extension

This repository can be added as an extension in MakeCode.

• open https://arcade.makecode.com/
• click on New Project
• click on Extensions under the gearwheel menu
• search for https://github.com/ch3mbot/pxt-noise and import

Usage Examples

How to initialize a noise generator and sample it:

let generator = new noise.OpenSimplexNoise2D();
let value = generator.noise(x, y);

The default seed is 0. When seed is set to 0 the default permutation table is used.

How to initialize a noise generator with a seed:

let generator = new noise.PerlinNoise1D(12345);

The perlin noise generators can optionally be given an interpolation function:

let generator = new noise.PerlinNoise2D(0, noise.interpolate2DQuint);

The default interpolation function is cubic interpolation. Quintic is slower but smoother, while linear is fast but jagged.

Edit this project

To edit this repository in MakeCode.

• open https://arcade.makecode.com/
• click on Import then click on Import URL
• paste https://github.com/ch3mbot/pxt-noise and click import

TODO

• 3D noise
• 4D noise?
• Test 1D Perlin noise with hash function
• 2D worley noise

Metadata (used for search, rendering)

• for PXT/arcade

<script src="https://makecode.com/gh-pages-embed.js"></script><script>makeCodeRender("{{ site.makecode.home_url }}", "{{ site.github.owner_name }}/{{ site.github.repository_name }}");</script>