<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Three框架</title>
<script type="text/javascript" script src="libs/three.js"></script>
<script type="text/javascript" script src="libs/stats.min.js"></script>
<style type="text/css">
div#canvas-frame {
border: none;
cursor: pointer;
width: 100%;
height: 600px;
background-color: #EEEEEE;
}
</style>
<script>
var renderer;
var stats;
function initThree() {
width = document.getElementById('canvas-frame').clientWidth;
height = document.getElementById('canvas-frame').clientHeight;
renderer = new THREE.WebGLRenderer({ antialias : true });
renderer.setSize(width, height);
document.getElementById('canvas-frame').appendChild(renderer.domElement);
renderer.setClearColor(0xFFFFFF, 1.0);
stats = new Stats(); //stats对象初始化
stats.domElement.style.position = 'absolute'; //将stats对象加入到html网页中,绝对坐标
stats.domElement.style.left = '0px';// (0,0)px,左上角
stats.domElement.style.top = '0px';
document.getElementById('canvas-frame').appendChild(stats.domElement);
}
var camera;
function initCamera() {
camera = new THREE.PerspectiveCamera(45, width / height, 1, 10000);
camera.position.x = 0;
camera.position.y = 0;
camera.position.z = 600;
camera.up.x = 0;//camera.up 设置相机的倾斜角度，歪着拿相机，照片自然也不是水平的
camera.up.y = 0;
camera.up.z = 0;
camera.lookAt({ //镜头看着哪里呢？景物在动
x : 0,
y : 0,
z : 0
});
}
var scene;
function initScene() {
scene = new THREE.Scene();
}
var light;
function initLight() {
light = new THREE.PointLight(0x00FF00);
light.position.set(0, 0,300);
scene.add(light);
}
var cube;
var mesh;
function initObject() {
var geometry = new THREE.CylinderGeometry( 10,15,40);
var material = new THREE.MeshLambertMaterial( { color:0xFFFFFF} );
mesh = new THREE.Mesh( geometry,material);
mesh.position.x = 100;
mesh.position.y = 100;
mesh.position.z = 100;
scene.add(mesh);
}
function threeStart() {
initThree();
initCamera();
initScene();
initLight();
initObject();
animation();
}
function animation()
{
mesh.position.z+=1;
renderer.render(scene, camera);
requestAnimationFrame(animation);
stats.update();//这个函数真好用
}
</script>
</head>
<body onload="threeStart();">
<div id="canvas-frame"></div>
</body>
</html>
