A jQuery plugin that adds random noise to the background of a given element.
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README.md

Noisy

A jQuery plugin that adds random noise to the background of an element.

Dependency

Install

Just download the repository and link to the local minimized script:

<script src="noisy/jquery/jquery.noisy.min.js"></script>

Alternatively, include it from cdnjs.com:

<script src="//cdnjs.cloudflare.com/ajax/libs/noisy/1.2/jquery.noisy.min.js"></script>

Usage

An example showing all parameters would be the following:

$('body').noisy({
    intensity: 0.9,
    size: 200,
    opacity: 0.08,
    fallback: 'fallback.png',
    monochrome: false
});

But since all parameters are optional you can just use it like this:

$('body').noisy();

You can also set a particles color with color option like this:

$('body').noisy({
    intensity: 0.9,
    size: 200,
    opacity: 0.08,
    fallback: 'fallback.png',
    randomColors: false, // true by default
    color: '#000000'
});

This works, for now, just with the jquery version.

Rationale

What's wrong with using an image?

  1. Bandwidth cost
    Due to the random nature of background images with a noisy overlay, compression usually isn't very effective. With this 1 KB script you can generate images up to 300 KB without loading for even a second. Saving bandwidth costs and loading time.
  2. Development speed
    Trying out an image with a different noise opacity involves a much smaller amount of steps by just updating a parameter than changing and saving the image in Photoshop.
  3. Flexibility
    By generating the background image in javascript, one does not need to rely on the webserver being able to serve static files for it. With generated favicons etc. a static files serving webserver becomes optional.

Contact

If you have any questions or suggestions that don't fit GitHub, send them to @DanielRapp

Support

I'd be flattered if you'd flattr this :)

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