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整理文件,发现之前存储了一些JavaScript特效。
分享一个JavaScript背景特效:波动粒子特效,可以跟随鼠标切换视角。
不过硬件性能消耗较大,在i3 2120+核显上稍卡;2600X+RX588丝滑流畅,慎用。
效果如下:
实现代码如下:
<!--粒子波动效果开始--> <body> <!--引入JS位置 ↓--> <script src="链接失效/wp-content/uploads/file/js/particle-three.min.js"></script> <script> var SEPARATION = 100, AMOUNTX = 50, AMOUNTY = 50; var container; var camera, scene, renderer; var particles, particle, count = 0; var mouseX = 0, mouseY = -350; var windowHalfX = window.innerWidth / 2; var windowHalfY = window.innerHeight / 2; init(); animate(); function init() { container = document.createElement( 'div' ); document.body.appendChild( container ); camera = new THREE.PerspectiveCamera( 75, window.innerWidth / window.innerHeight, 1, 10000 ); camera.position.z = 1000; scene = new THREE.Scene(); particles = new Array(); var PI2 = Math.PI * 2; var material = new THREE.ParticleCanvasMaterial( { color: 0xc4c4c4, program: function ( context ) { context.beginPath(); context.arc( 0, 0, 1, 0, PI2, true ); context.fill(); } } ); var i = 0; for ( var ix = 0; ix < AMOUNTX; ix ++ ) { for ( var iy = 0; iy < AMOUNTY; iy ++ ) { particle = particles[ i ++ ] = new THREE.Particle( material ); particle.position.x = ix * SEPARATION - ( ( AMOUNTX * SEPARATION ) / 2 ); particle.position.z = iy * SEPARATION - ( ( AMOUNTY * SEPARATION ) / 2 ); scene.add( particle ); } } renderer = new THREE.CanvasRenderer(); renderer.setSize( window.innerWidth, window.innerHeight ); container.appendChild( renderer.domElement ); document.addEventListener( 'mousemove', onDocumentMouseMove, false ); document.addEventListener( 'touchstart', onDocumentTouchStart, false ); document.addEventListener( 'touchmove', onDocumentTouchMove, false ); // window.addEventListener( 'resize', onWindowResize, false ); } function onWindowResize() { windowHalfX = window.innerWidth / 2; windowHalfY = window.innerHeight / 2; camera.aspect = window.innerWidth / window.innerHeight; camera.updateProjectionMatrix(); renderer.setSize( window.innerWidth, window.innerHeight ); } // function onDocumentMouseMove( event ) { mouseX = event.clientX - windowHalfX; mouseY = event.clientY - windowHalfY; } function onDocumentTouchStart( event ) { if ( event.touches.length === 1 ) { event.preventDefault(); mouseX = event.touches[ 0 ].pageX - windowHalfX; mouseY = event.touches[ 0 ].pageY - windowHalfY; } } function onDocumentTouchMove( event ) { if ( event.touches.length === 1 ) { event.preventDefault(); mouseX = event.touches[ 0 ].pageX - windowHalfX; mouseY = event.touches[ 0 ].pageY - windowHalfY; } } // function animate() { requestAnimationFrame( animate ); render(); } function render() { camera.position.x += ( mouseX - camera.position.x ) * .05; camera.position.y += ( - mouseY - camera.position.y ) * .05; camera.lookAt( scene.position ); var i = 0; for ( var ix = 0; ix < AMOUNTX; ix ++ ) { for ( var iy = 0; iy < AMOUNTY; iy ++ ) { particle = particles[ i++ ]; particle.position.y = ( Math.sin( ( ix + count ) * 0.3 ) * 50 ) + ( Math.sin( ( iy + count ) * 0.5 ) * 50 ); particle.scale.x = particle.scale.y = ( Math.sin( ( ix + count ) * 0.3 ) + 1 ) * 2 + ( Math.sin( ( iy + count ) * 0.5 ) + 1 ) * 2; } } renderer.render( scene, camera ); count += 0.1; } </script> </body> <!--粒子波动效果结束-->