init.js

var camera, scene, renderer, geometry, material, mesh;

function init() {
	
	// Create a scene
	scene = new THREE.Scene();

	// Create a geometry
	// 	Create a box (cube) of 10 width, length, and height
	geometry = new THREE.BoxGeometry( 10, 10, 10 );
	// Create a MeshBasicMaterial with a color white and with its wireframe turned on
	material = new THREE.MeshBasicMaterial( { color: 0xffffff, wireframe: true} );

	// Combine the geometry and material into a mesh
	mesh = new THREE.Mesh( geometry, material );
	// Add the mesh to the scene
	scene.add( mesh );

	// Create a camera
	// 	Set a Field of View (FOV) of 75 degrees
	// 	Set an Apsect Ratio of the inner width divided by the inner height of the window
	//	Set the 'Near' distance at which the camera will start rendering scene objects to 2
	//	Set the 'Far' (draw distance) at which objects will not be rendered to 1000
	camera = new THREE.PerspectiveCamera( 75, window.innerWidth / window.innerHeight, 2, 1000 );
	// Move the camera 'out' by 30
	camera.position.z = 30;

	// Create a WebGL Rendered
	renderer = new THREE.WebGLRenderer();
	// Set the size of the renderer to the inner width and inner height of the window
	renderer.setSize( window.innerWidth, window.innerHeight );

	// Add in the created DOM element to the body of the document
	document.body.appendChild( renderer.domElement );

}