Question

我在使用Three.js时获得了Uncaught TypeError: undefined is not a function。我正在创建THREE.PerspectiveCamera的行显示错误。脚本是

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);
    });

这是因为我宣布相机的方式错了吗？我检查了three.js文档和示例给出的基本相同。所以我坚持要做什么。

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http://www.html5canvastutorials.com/libraries/Three.js切换了它。现在，PerspectiveCamera错误消失了，但它在Three.js脚本中产生了一个新错误。在Three.js脚本的第337行上的错误为Uncaught TypeError: Cannot read property 'x' of undefined

感谢。

Answer 1

本地副本的问题是您使用了未构建的Three.js文件（即src / Three.js）。你想要的是build / three.js或build / three.min.js。我将其复制到我的项目中，并在脚本标记的src属性中更改了对它的引用，这一切都开始有效了。

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
       ...

Three.js - 未捕获TypeError：undefined不是函数

1 个答案: