<!DOCTYPE html>
<html lang="en">
<head>
<title>three.js webgl - OBJLoader + MTLLoader</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
<style>
body {
font-family: Monospace;
background-color: #000;
color: #fff;
margin: 0px;
overflow: hidden;
}
#info {
color: #fff;
position: absolute;
top: 10px;
width: 100%;
text-align: center;
z-index: 100;
display:block;
}
#info a, .button { color: #f00; font-weight: bold; text-decoration: underline; cursor: pointer }
</style>
</head>
<body>
<script src="three.js"></script>
<script src="DDSLoader.js"></script>
<script src="MTLLoader.js"></script>
<script src="OBJLoader.js"></script>
<script src="TrackballControls.js"></script>
<script src="Detector.js"></script>
<script src="stats.min.js"></script>
<script>
// 容器
var container,
stats,
// 控制器
controls;
// 镜头
var camera,
// 场景
scene,
// 渲染
renderer;
var mouseX = 0, mouseY = 0;
var windowHalfX = window.innerWidth / 2;
var windowHalfY = window.innerHeight / 2;
init();
animate();
function init() {
container = document.createElement( 'div' );
document.body.appendChild( container );
//创建一个一个视角
camera = new THREE.PerspectiveCamera( 45, window.innerWidth / window.innerHeight, 1, 4000 );
//设置视角离原点的位置（眼睛距离模型的距离）
camera.position.z = 700;
//控制器
controls = new THREE.TrackballControls( camera );
//设置旋转速度
controls.rotateSpeed = 3;
// 使动画循环使用时阻尼或自转 意思是否有惯性
controls.enableDamping = true;
//是否可以缩放
controls.enableZoom = true;
//是否自动旋转
controls.autoRotate = true;
//设置相机距离原点的最远距离
controls.minDistance = 500;
//设置相机距离原点的最远距离
controls.maxDistance = 2000;
//是否开启右键拖拽
controls.enablePan = true;
// scene
scene = new THREE.Scene();
var ambientLight = new THREE.AmbientLight( 0xcccccc, 0.4 );
scene.add( ambientLight );
var pointLight = new THREE.PointLight( 0xffffff, 0.8 );
camera.add( pointLight );
scene.add( camera );
// model 开始创建模型
var onProgress = function ( xhr ) {
if ( xhr.lengthComputable ) {
var percentComplete = xhr.loaded / xhr.total * 100;
console.log( Math.round( percentComplete, 2 ) + '% downloaded' );
}
};
//报错通知
var onError = function ( xhr ) { };
THREE.Loader.Handlers.add( /\.dds$/i, new THREE.DDSLoader() );
// 加载mtl
new THREE.MTLLoader()
.setPath( '' )
.load( 'Mountains2.mtl', function ( materials ) {
materials.preload();
// 加载obj
new THREE.OBJLoader()
.setMaterials( materials )
.setPath( '' )
.load( 'Mountains2.obj', function ( object ) {
object.position.y = - 95;
scene.add( object );
}, onProgress, onError );
} );
//
renderer = new THREE.WebGLRenderer({antialias: false,
alpha: true}); // 设置透明);
// 设置分辨率
renderer.setPixelRatio( window.devicePixelRatio );
// 设置渲染尺寸
renderer.setSize( window.innerWidth, window.innerHeight );
container.appendChild( renderer.domElement );
// 自适应监听
window.addEventListener( 'resize', onWindowResize, false );
}
function onWindowResize() {
camera.aspect = window.innerWidth / window.innerHeight;
camera.updateProjectionMatrix();
renderer.setSize( window.innerWidth, window.innerHeight );
}
function onDocumentMouseMove( event ) {
mouseX = ( event.clientX - windowHalfX ) / 2;
mouseY = ( event.clientY - windowHalfY ) / 2;
}
// 时刻渲染
function animate() {
controls.update();
renderer.render( scene, camera );
requestAnimationFrame( animate );
}
function render() {
camera.position.x += ( mouseX - camera.position.x ) * .05;
camera.position.y += ( - mouseY - camera.position.y ) * .05;
camera.lookAt( scene.position );
renderer.render( scene, camera );
}
</script>
</body>
</html>
