问题描述
我在使用 Three.js 时遇到 Uncaught TypeError: undefined is not a function
.在我创建 THREE.PerspectiveCamera
的行中显示错误.脚本是
I'm getting the Uncaught TypeError: undefined is not a function
while using Three.js.The error is being shown for the line where I'm creating a THREE.PerspectiveCamera
.The script is
window.requestAnimFrame = (function(callback){
return window.requestAnimationFrame ||
window.webkitRequestAnimationFrame ||
window.mozRequestAnimationFrame ||
window.oRequestAnimationFrame ||
window.msRequestAnimationFrame ||
function(callback){
window.setTimeout(callback, 1000 / 60);
};
})();
function animate(lastTime, angularSpeed, three){
// update
var date = new Date();
var time = date.getTime();
lastTime = time;
// render
three.renderer.render(three.scene, three.camera);
// request new frame
requestAnimFrame(function(){
animate(lastTime, angularSpeed, three);
});
}
$(window).bind('load',function(){
var angularSpeed = 0.2; // revolutions per second
var lastTime = 0;
$container = $("#container");
var renderer = new THREE.WebGLRenderer();
renderer.setSize(window.innerWidth, window.innerHeight);
$container.append(renderer.domElement);
// camera - Uncaught Type Error on the below line
var camera = new THREE.PerspectiveCamera(45, window.innerWidth / window.innerHeight, 1, 1000);
camera.position.y = -450;
camera.position.z = 400;
camera.rotation.x = 45 * (Math.PI / 180);
// scene
var scene = new THREE.Scene();
var material = new THREE.LineBasicMaterial({
color: 0x0000ff,
});
var geometry = new THREE.Geometry();
for(var i=0;i<100;i++){
geometry.vertices.push(new THREE.Vector3(i-100,i-100,i-100));
geometry.vertices.push(new THREE.Vector3(i+100,i+100,i+100));
var line = new Three.Line(geometry,material);
scene.add(line);
geometry=new THREE.Geometry();
}
// create wrapper object that contains three.js objects
var three = {
renderer: renderer,
camera: camera,
scene: scene,
};
animate(lastTime, angularSpeed, three);
});
这是因为我声明相机的方式有误吗?我查看了three.js 文档,那里给出的示例基本相同.所以我一直在纠结要做什么.
Is this because the way I'm declaring the camera is wrong?I checked the three.js documentation and the example give there is basically the same.So I'm stuck on what to do.
更新:当我遇到最后一个错误时,我正在使用 Three.js 的本地副本.我用链接切换它 http://www.html5canvastutorials.com/libraries/Three.js一>.现在,PerspectiveCamera 错误消失了,但它在 Three.js 脚本中产生了一个新错误.错误是 Uncaught TypeError: Cannot read property 'x' of undefined
在 Three.js 脚本的第 337 行
UPDATE:I was using a local copy of Three.js when I encountered the last error. I switched it with the link http://www.html5canvastutorials.com/libraries/Three.js.Now, the PerspectiveCamera error is gone, but it produces a new error inside the Three.js script. The error is Uncaught TypeError: Cannot read property 'x' of undefined
on line 337 of the Three.js script
谢谢.
推荐答案
本地副本的问题是您使用了未构建的 Three.js 文件(即 src/Three.js).您想要的是 build/three.js 或 build/three.min.js.我将它复制到我的项目中,并在脚本标记的 src 属性中更改了对它的引用,然后一切都开始工作了.
The problem with the local copy is you used the unbuilt Three.js file (that would be src/Three.js). The one you want is either build/three.js or build/three.min.js. I copied that into my project, and changed the reference to it in the script tag's src attribute, and it all started working.
简而言之:
mrdoob-three.js-2524525(or some other number here)
|
+----build
| |
| +--three.js <-- YES, CORRECT FILE
| +--three.min.js <-- YES
| ...
|
+----src
... |
+--Three.js <-- NO, PREBUILT FILE THAT ONLY CONTAINS CONSTANTS
...
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