Threejs基础

1.基础代码

var scene = new THREE.Scene();
var camera = new THREE.PerspectiveCamera();
var renderer = new THREE.WebGLRenderer();

var loop = function(){
    requestAnimationFrame(loop);
    renderer.render(scene, camera);
}

loop();

document.body.appendChild(renderer.domElement);

 2.旋转立方体（无材质）

index.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
    <title>Threejs-cube</title>
    <style>
        #container{
            width: 500px;
            height: 300px;
            background-color: #f4f4f4;
        }
    </style>
</head>
<body>
    <p>ok</p>
    <div id="container"></div>

    <script src="https://cdnjs.cloudflare.com/ajax/libs/three.js/84/three.js"></script>
    <script src="demo-cube.js"></script>
</body>
</html>

demo-cube.js

//getElement
var container = document.getElementById('container');

//var scene,camera,renderer
var scene = new THREE.Scene();
var camera = new THREE.PerspectiveCamera(
    75, container.clientWidth / container.clientHeight, 0.1, 1000
);
var renderer = new THREE.WebGLRenderer();

//var geometry,mesh
var geometry = new THREE.CubeGeometry(10, 10, 10);
var mesh = new THREE.Mesh(geometry);

//set scene,camera
scene.add(mesh);
camera.position.z = 20;

//loop render
var loop = function(){
    requestAnimationFrame(loop);
    renderer.render(scene, camera);

    mesh.rotation.x += .03;
    mesh.rotation.y += .05;
    mesh.rotation.z += .01;
}

loop();

//append renderer dom
renderer.setSize(container.clientWidth, container.clientHeight);
container.appendChild(renderer.domElement);

 

posted @ 2017-03-18 20:41  sunbey80  阅读(236)  评论(0)  编辑  收藏  举报