我们是否能够在运行时更改使用Three.js创建的3D立方体的“宽度/高度/长度”维度?类似于我在SO上得到的一个演示,它可以在运行时更改立方体的颜色:http://jsfiddle.net/mpXrv/1/。同样地,我们能否改变这个立方体的尺寸吗?以下是我的代码:HTML。
这里是相应的 Fiddle!http://jsfiddle.net/EtSf3/1/ 如果需要其他信息,请告知。请提出建议。
<script src="http://www.html5canvastutorials.com/libraries/three.min.js"></script>
<div id="container"></div>
<div class="inputRow clear" id="dimensionsNotRound" data-role="tooltip">
<label class="grid-8">Dimensions (mm):</label>
<br/>
<br/>
<div> <span>Length</span>
<input class="numeric-textbox" type="text" value="">
<br/>
<br/>
</div>
<div> <span>Width</span>
<input class="numeric-textbox" type="text" value="">
<br/>
<br/>
</div>
<div> <span>Height</span>
<input class="numeric-textbox" type="text" value="">
<br/>
<br/>
</div>
<button id="btn">Click me to change the Dimensions</button>
JS
//Script for 3D Box
// revolutions per second
var angularSpeed = 0.2;
var lastTime = 0;
// this function is executed on each animation frame
function animate() {
// update
var time = (new Date()).getTime();
var timeDiff = time - lastTime;
var angleChange = angularSpeed * timeDiff * 2 * Math.PI / 1000;
cube.rotation.y += angleChange;
lastTime = time;
// render
renderer.render(scene, camera);
// request new frame
requestAnimationFrame(function () {
animate();
});
}
// renderer
var container = document.getElementById("container");
var renderer = new THREE.WebGLRenderer();
renderer.setSize(container.offsetWidth, container.offsetHeight);
container.appendChild(renderer.domElement);
// camera
var camera = new THREE.PerspectiveCamera(45, window.innerWidth / window.innerHeight, 1, 1000);
camera.position.z = 700;
// scene
var scene = new THREE.Scene();
// cube
var cube = new THREE.Mesh(new THREE.CubeGeometry(400, 100, 200), new THREE.MeshLambertMaterial({
color: '#cccccc'
}));
cube.overdraw = true;
cube.rotation.x = Math.PI * 0.1;
cube.rotation.y = Math.PI * 0.3;
scene.add(cube);
// add subtle ambient lighting
var ambientLight = new THREE.AmbientLight(0x888888);
scene.add(ambientLight);
// directional lighting
var directionalLight = new THREE.DirectionalLight(0x666666);
directionalLight.position.set(1, 1, 1).normalize();
scene.add(directionalLight);
// start animation
animate();
这里是相应的 Fiddle!http://jsfiddle.net/EtSf3/1/ 如果需要其他信息,请告知。请提出建议。