<!DOCTYPE html>
<html>
<head>
<title>Example 04.05 - Mesh face material</title>
<script src="https://cdn.bootcss.com/three.js/r67/three.js"></script>
<script src="https://cdn.bootcss.com/stats.js/r10/Stats.min.js"></script>
<script type="text/javascript" src="https://cdn.bootcss.com/dat-gui/0.7.3/dat.gui.js"></script>
<style>
body {
margin: 0;
overflow: hidden;
}
</style>
</head>
<body>
<div id="Stats-output">
</div>
<div id="WebGL-output">
</div>
<script type="text/javascript">
// 初始化
function init() {
var stats = initStats();
// 创建一个场景
var scene = new THREE.Scene();
// 创建一个相机
var camera = new THREE.PerspectiveCamera(45, window.innerWidth / window.innerHeight, 0.1, 1000);
// 创建一个渲染器
var renderer = new THREE.WebGLRenderer();
renderer.setClearColor(new THREE.Color(0xEEEEEE, 1.0));
renderer.setSize(window.innerWidth, window.innerHeight);
renderer.shadowMapEnabled = false;
// 创建一个地面
var planeGeometry = new THREE.PlaneGeometry(60, 40, 1, 1);
var planeMaterial = new THREE.MeshLambertMaterial({color: 0xffffff});
var plane = new THREE.Mesh(planeGeometry, planeMaterial);
plane.receiveShadow = true;
// 旋转这个地面
plane.rotation.x = -0.5 * Math.PI;
plane.position.x = 0;
plane.position.y = -2;
plane.position.z = 0;
// 把地面添加到场景中去
scene.add(plane);
// 相机的坐标 和 朝向
camera.position.x = -40;
camera.position.y = 40;
camera.position.z = 40;
camera.lookAt(scene.position);
// add subtle ambient lighting
// var ambientLight = new THREE.AmbientLight(0x0c0c0c);
// scene.add(ambientLight);
// 添加聚光灯
var spotLight = new THREE.SpotLight(0xffffff);
spotLight.position.set(-40, 60, -10);
spotLight.castShadow = true;
scene.add(spotLight);
// 把渲染后的结果放到DOM元素中去
document.getElementById("WebGL-output").appendChild(renderer.domElement);
var group = new THREE.Mesh();
// 设置每个面的颜色
var mats = [];
mats.push(new THREE.MeshBasicMaterial({color: 0x009e60}));
mats.push(new THREE.MeshBasicMaterial({color: 0x009e60}));
mats.push(new THREE.MeshBasicMaterial({color: 0x0051ba}));
mats.push(new THREE.MeshBasicMaterial({color: 0x0051ba}));
mats.push(new THREE.MeshBasicMaterial({color: 0xffd500}));
mats.push(new THREE.MeshBasicMaterial({color: 0xffd500}));
mats.push(new THREE.MeshBasicMaterial({color: 0xff5800}));
mats.push(new THREE.MeshBasicMaterial({color: 0xff5800}));
mats.push(new THREE.MeshBasicMaterial({color: 0xC41E3A}));
mats.push(new THREE.MeshBasicMaterial({color: 0xC41E3A}));
mats.push(new THREE.MeshBasicMaterial({color: 0xffffff}));
mats.push(new THREE.MeshBasicMaterial({color: 0xffffff}));
var faceMaterial = new THREE.MeshFaceMaterial(mats);
for (var x = 0; x < 3; x++) {
for (var y = 0; y < 3; y++) {
for (var z = 0; z < 3; z++) {
var cubeGeom = new THREE.BoxGeometry(2.9, 2.9, 2.9);
var cube = new THREE.Mesh(cubeGeom, faceMaterial);
cube.position.set(x * 3 - 3, y * 3, z * 3 - 3);
group.add(cube);
}
}
}
scene.add(group);
var step = 0;
var controls = new function () {
this.rotationSpeed = 0.02;
this.numberOfObjects = scene.children.length;
};
var gui = new dat.GUI();
gui.add(controls, 'rotationSpeed', 0, 0.5);
render();
function render() {
stats.update();
group.rotation.y = step += controls.rotationSpeed;
requestAnimationFrame(render);
renderer.render(scene, camera);
}
function initStats() {
var stats = new Stats();
stats.setMode(0); // 0: fps, 1: ms
stats.domElement.style.position = 'absolute';
stats.domElement.style.left = '0px';
stats.domElement.style.top = '0px';
document.getElementById("Stats-output").appendChild(stats.domElement);
return stats;
}
}
window.onload = init;
</script>
</body>
</html>