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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>three.js</title>
<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
<meta name="description" content="展示一些样例,写一些书籍,gy的网站">
<meta name="keywords" content="three.js,demos,canvas,webgl,tricks,前端,guoyang,gy134340,web">
<link rel="icon" href="img/icon/favicon.png">
<link rel="stylesheet" href="css/reset.css">
<style>
.container{
width: 100%;
height: 100%;
position: relative;
}
.message{
position: absolute;
z-index: 999;
color:#fff;
font-size: 18px;
}
.title{
color:#fff;
position: absolute;
font-size: 20px;
top:10px;
-webkit-transform:translateX(-50%);
transform: translateX(-50%);
left:50%;
width: auto;
margin: 0 auto;
}
</style>
</head>
<body>
<div class="container">
<p class="title">three.js audio 播放音乐和动画</p>
</div>
<script src="js/three.min.js"></script>
<script src="js/renderers/Projector.js"></script>
<script src="js/renderers/CanvasRenderer.js"></script>
<script src='js/TrackballControls.js'></script>
<script src="js/stats.min.js"></script>
<script src='js/Tween.js'></script>
<script src="js/RequestAnimationFrame.js"></script>
<script type="text/javascript">
/**
* 这是一个用three 播放音乐的啥啥啥
*
* @author gy 2017
*
*/
var container,stats;
var canavs;
var camera,scene,renderer,controls;
var raycaster; // 点击发出的一条射线
var mouse = {
};
var meshs = [];
var winWidth = window.innerWidth;
var winHeight = window.innerHeight;
var INTERSECTED = []; // 鼠标点击的第一个点,以防快速点击，所以用数组保存
var PI2 = Math.PI * 2;
// 初始化
function init(){
container = document.querySelectorAll('.container')[0];
raycaster = new THREE.Raycaster(); // 射线
mouse = new THREE.Vector2(); // 点向量
mouse.x = 0;
mouse.y = 0;
// 添加scene
scene = new THREE.Scene();
// 添加相机
camera = new THREE.PerspectiveCamera(75, winWidth / winHeight, 1, 10000);
camera.position.set(0, -2400, 1200);
camera.lookAt(scene.position);
// 添加光源
var light = new THREE.AmbientLight(0x404040);
scene.add(light);
var lightDir = new THREE.DirectionalLight( 0xffffff );
light.position.set( 0, 1, 1 ).normalize();
scene.add(light);
// 添加音乐
var listener = new THREE.AudioListener();
camera.add(listener);
var sound = new THREE.Audio(listener);
var audioLoader = new THREE.AudioLoader();
audioLoader.load( 'audio/hwa.mp3', function( buffer ) {
sound.setBuffer( buffer );
sound.setLoop(true);
sound.setVolume(0.5);
sound.play();
});
// 放两个音箱
var material = new THREE.MeshBasicMaterial({
map: new THREE.TextureLoader().load('textures/bg.jpg')
});
var geometry = new THREE.BoxGeometry(500,1000,500);
var cubeLeft = new THREE.Mesh(geometry, material);
var cubeRight = new THREE.Mesh(geometry,material);
cubeLeft.position.set(540,150,250);
cubeRight.position.set(-540,150,250);
scene.add( cubeLeft );
scene.add( cubeRight );
// 添加一堆光的栗子栗子
// 这里是用一个应用一个别的纹理
var spriteMap = new THREE.TextureLoader().load( 'textures/lensflare2.jpg' );
var particlaMaterial = new THREE.SpriteMaterial( {
// map: new THREE.CanvasTexture( generateSprite() ),
map: spriteMap,
blending: THREE.AdditiveBlending
} );
// var poiLeft = new THREE.Vector3(-500, -600, 400);
// var poiRight = new THREE.Vector3(500, -600, 400);
// console.log(poiLeft);
for ( var i = 0; i < 1000; i++ ) { // i也是延迟的时间
particleLeft = new THREE.Sprite( particlaMaterial );
initLeftParticle( particleLeft, i * 10 );
scene.add( particleLeft );
particleRight = new THREE.Sprite( particlaMaterial );
initRightParticle( particleRight, i * 10 );
scene.add( particleRight );
}
var torusGeometry = new THREE.TorusGeometry( 140, 50, 16, 100 );
var torusMaterial = new THREE.MeshBasicMaterial( { map: new THREE.TextureLoader().load('textures/lava/cloud.png') } );
var torusLeft = new THREE.Mesh( torusGeometry, torusMaterial );
var torusRight = new THREE.Mesh( torusGeometry, torusMaterial );
torusLeft.position.set(540,-450,250);
torusRight.position.set(-540,-450,250);
torusLeft.rotation.x = Math.PI / 2;
torusRight.rotation.x = Math.PI / 2;
scene.add( torusLeft );
scene.add( torusRight );
// 渲染
renderer = new THREE.CanvasRenderer();
renderer.setClearColor(0x000000);
renderer.setPixelRatio( window.devicePixelRatio );
renderer.setSize(winWidth, winHeight);
container.append(renderer.domElement);
// 统计
stats = new Stats();
container.appendChild(stats.dom);
drawLine();
controls = new THREE.TrackballControls( camera, renderer.domElement );
controls.speed = 5;
controls.noPan = false;
controls.noZoom = false;
}
// 初始化左边光粒,delay等于传入i的大小
// @todo 两个函数优化成一个
//
function initLeftParticle( particle, delay) {
var particle = this instanceof THREE.Sprite ? this : particle; // 循环到底的判断
var delay = delay !== undefined ? delay : 0;
particle.position.set(-500, -600, 400);
particle.scale.x = particle.scale.y = Math.random() * 32 + 16;
new TWEEN.Tween( particle ) // 此处是有循环的，单个particle的循环
.delay( delay )
.to( {}, 10000 )
.onComplete( initLeftParticle )
.start();
new TWEEN.Tween( particle.position ) // tween particle的位置
.delay( delay )
.to( { x: Math.random() * 4000 - 2000, y: Math.random() * 1000 - 500, z: Math.random() * 4000 - 2000 }, 10000 )
.start();
new TWEEN.Tween( particle.scale ) // 变大呀
.delay( delay )
.to( { x: 0.01, y: 0.01 }, 10000 )
.start();
}
// 初始化光粒,delay等于传入i的大小
function initRightParticle( particle, delay) {
var particle = this instanceof THREE.Sprite ? this : particle; // 循环到底的判断
var delay = delay !== undefined ? delay : 0;
particle.position.set( 500, -600, 400);
particle.scale.x = particle.scale.y = Math.random() * 32 + 16;
new TWEEN.Tween( particle ) // 此处是有循环的，单个particle的循环
.delay( delay )
.to( {}, 10000 )
.onComplete( initRightParticle )
.start();
new TWEEN.Tween( particle.position ) // tween particle的位置
.delay( delay )
.to( { x: Math.random() * 4000 - 2000, y: Math.random() * 1000 - 500, z: Math.random() * 4000 - 2000 }, 10000 )
.start();
new TWEEN.Tween( particle.scale ) // 变大呀
.delay( delay )
.to( { x: 0.01, y: 0.01 }, 10000 )
.start();
}
function render(){
TWEEN.update();
camera.lookAt(scene.position);
camera.updateMatrixWorld();
renderer.render(scene, camera);
}
function animate(){
requestAnimationFrame( animate );
render();
stats.update(); // fps
controls.update(); // control 位置
}
// // 画一个网格
function drawLine() {
var material = new THREE.LineBasicMaterial({
color: 0xCCCCCC
});
for ( var i = -40; i < 40; i++ ){
var geometry = new THREE.Geometry();
geometry.vertices.push(
new THREE.Vector3( 50*i, -1000, 0 ),
new THREE.Vector3( 50*i, 1000, 0 )
);
var line = new THREE.Line( geometry, material );
scene.add( line );
}
for ( var j = -40; j < 40; j++ ){
var geometry = new THREE.Geometry();
geometry.vertices.push(
new THREE.Vector3( -1000, 50*j, 0 ),
new THREE.Vector3( 1000, 50*j, 0 )
);
var line = new THREE.Line( geometry, material );
scene.add( line );
}
}
// start here
init();
animate();
</script>
</body>
</html>