rainyday.js, 雨滴效果js库

[Contra]

Rainyday.js:
"The idea behind rainyday.js is to create a JavaScript library that makes use of the HTML5 canvas to render an animation of raindrops falling on a glass surface. "

demo:
http://maroslaw.github.io/rainyday.js/demo012_1.html
官网:
http://maroslaw.github.io/rainyday.js/

How to use:

程序代码

var engine = new RainyDay({
    element: 'background',  // ID of image element
    blur: 10,               // Defines blur due to rain effect
    opacity: 1,             // Opacity of rain drops
    fps: 30                 // Frame rate per second
});
engine.rain([ [3, 3, 0.88], [5, 5, 0.9], [6, 2, 1] ], 100);