HTML5的Canvas特性非常实用，我们不仅可以在Canvas画布上绘制各种图形，也可以制作绚丽的动画，比如这次介绍的水波纹动画特效。以前我们也分享过一款基于HTML5 WebGL的水波荡漾动画，让人惊叹不已，这次分享的HTML5 Canvas水波纹动画同样非常震撼人心。
<!DOCTYPE html> <html lang="zh"> <head> <meta charset="UTF-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>HTML5 Canvas水波纹动画特效DEMO演示</title> <link rel="stylesheet" type="text/css" href="css/normalize.css" /> <link rel="stylesheet" type="text/css" href="css/zzsc.css"> <script src="js/jquery-1.11.0.min.js" type="text/javascript"></script> <script type="text/javascript" src="js/jquery.waterrippleeffect.min.js"></script> <style type="text/css"> html, body, div, span, applet, object, iframe, h1, h2, h3, h4, h5, h6, p, blockquote, pre, a, abbr, acronym, address, big, cite, code, del, dfn, em, font, img, ins, kbd, q, s, samp, small, strike, strong, sub, sup, tt, var, b, u, i, center, dl, dt, dd, ol, ul, li, fieldset, form, label, legend, table, caption, tbody, tfoot, thead, tr, th, td { margin: 0; padding: 0; border: 0; outline: 0; font-size: 100%; vertical-align: baseline; /*background: transparent;*/ box-sizing: border-box; } body { overflow: hidden; } .container{ width: 480px; height: 480px; margin:20px auto; position: relative; } .clear { clear: both; height: 0; font-size: 0; line-height: 0; } </style> <script> $( document ).ready( function() { //------------------------------------------------------------------------ $( '#preloaderDiv' ).delay( 1000 ).fadeTo( 1000 , 0, function() { $( this ).css( 'display', 'none' ); } ); $( '#startDiv' ).css( 'cursor', 'pointer' ).click( function() { //$( this ).css( 'display', 'none' ); $( this ).delay( 10 ).fadeTo( 1000 , 0, function() { $( this ).css( 'display', 'none' ); } ); init(); } ); //------------------------------------------------------------------------ function init() { //Settings - params for WaterRippleEffect var settings = { image: './img/SwimmingPool.jpg',//image path rippleRadius: 3,//radius of the ripple 480,//width height: 480,//height delay: 1,//if auto param === true. 1 === 1 second delay for animation auto: true//if auto param === true, animation starts on it´s own }; //------------------------------------------------------------------------ //standalone //init var waterRippleEffect = new WaterRippleEffect( document.getElementById( 'holder' ), settings ); document.getElementById( 'holder' ).style.cursor = 'pointer'; //on click document.getElementById( 'holder' ).addEventListener( 'click', function( e ) { var mouseX = e.layerX; var mouseY = e.layerY; waterRippleEffect.disturb( mouseX, mouseY ); } ); //on mousemove document.getElementById( 'holder' ).addEventListener( 'mousemove', function( e ) { var mouseX = e.layerX; var mouseY = e.layerY; waterRippleEffect.disturb( mouseX, mouseY ); } ); //------------------------------------------------------------------------ //jQuery //init /* $( '#holder' ).waterRippleEffect( settings ); $( '#holder' ).css( 'cursor', 'pointer' ); */ //on click /* $( '#holder' ).click( function( e ) { var mouseX = e.pageX - $( this ).offset().left; var mouseY = e.pageY - $( this ).offset().top; $( '#holder' ).waterRippleEffect( "disturb", mouseX, mouseY ); } ); */ //on mousemove /* $( '#holder' ).mousemove( function( e ) { var mouseX = e.pageX - $( this ).offset().left; var mouseY = e.pageY - $( this ).offset().top; $( '#holder' ).waterRippleEffect( "disturb", mouseX, mouseY ); } ); */ }; //------------------------------------------------------------------------ } ); </script> </head> <body> <div class="container"> <div id='holder' style='480px; height:480px; position:absolute;'></div> <div id='startDiv' style='background-color:#000; position:absolute; 480px; height:480px;'> <img src='img/startBt.jpg' width='480px' height='480px' alt='Start' style='position:absolute; top:50%; left:50%; margin-top:-240px; margin-left:-240px;'> </div> <div id='preloaderDiv' style='background-color:#000; position:absolute; 480px; height:480px; pointer-events:none'> <img src='img/PreloaderDark.gif' width='44px' height='48px' alt='Preloader' style='position:absolute; top:50%; left:50%; margin-top:-22px; margin-left:-24px;'> </div> </div> <div style="text-align:center;clear:both;"> <script src="/gg_bd_ad_720x90.js" type="text/javascript"></script> <script src="/follow.js" type="text/javascript"></script> </div> </body> </html>