fixed bug threejs

///<reference path="./three.d.ts"/>

class ThreeJSTest {
    renderer:THREE.WebGLRenderer;
    scene:THREE.Scene;
    camera:THREE.Camera;

    constructor() {
        this.renderer = new THREE.WebGLRenderer({ alpha: true });

        this.renderer.setSize(500, 500);
        this.renderer.setClearColor(0xFFFFFF, 1);

        document.getElementById('content').appendChild(this.renderer.domElement);

        this.scene = new THREE.Scene();

        this.camera = new THREE.PerspectiveCamera(75
            , 1
            , 0.1, 1000);

        this.camera.position = new THREE.Vector3(10, 0, 10);
        this.camera.lookAt(new THREE.Vector3(0, 0, 0));


        // New code begins below
        // Create a loader to load in the JSON file
        var modelLoader = new THREE.JSONLoader();

        // Call the load method, passing in the name of our generated JSON file
        // and a callback for when loadign is complete.
        // Not fat arrow typescript call for proper thisification.  AKA, we want
        this to be this, not that
        // or something else completely
        modelLoader.load("robot.jsm", (geometry,materials) => {
            // create a mesh using the passed in geometry and textures
            var mesh = new THREE.SkinnedMesh(geometry,new THREE.MeshFaceMaterial(
                       materials));
            mesh.position.x = 0; mesh.position.y = mesh.position.z = 0;
            // add it to the scene
            this.scene.add(mesh);
        });

        this.scene.add(new THREE.AmbientLight(new THREE.Color(0.9,0.9,0.9).
                       getHex()));
        this.renderer.render(this.scene, this.camera);
    }

    render() {
        requestAnimationFrame(() => this.render());
        this.renderer.render(this.scene, this.camera);
    }

    start() {
        this.render();
    }
}

window.onload = () => {
    var three = new ThreeJSTest();
    three.start();
};