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HTML5 Canvas blur dot background animation special effects
Classify: JS effects / html5 special effects | Release time: 2018-06-25 | visits: 1997 |
Download: 64 |
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代码片段:
while( count-- ) {
var radius = rand( opt.radiusMin, opt.radiusMax ),
blur = rand( opt.blurMin, opt.blurMax ),
x = rand( 0, cw ),
y = rand( 0, ch ),
hue = rand(opt.hueMin, opt.hueMax ),
saturation = rand( opt.saturationMin, opt.saturationMax ),
lightness = rand( opt.lightnessMin, opt.lightnessMax ),
alpha = rand( opt.alphaMin, opt.alphaMax );
ctx1.shadowColor = hsla( hue, saturation, lightness, alpha );
ctx1.shadowBlur = blur;
ctx1.beginPath();
ctx1.arc( x, y, radius, 0, twopi );
ctx1.closePath();
ctx1.fill();
}