Pure THREE.JS template

HTML

<script src="//cdnjs.cloudflare.com/ajax/libs/three.js/r82/three.min.js"></script>
<script type="text/javascript">
/**
 * @author qiao / https://github.com/qiao
 * @author mrdoob / http://mrdoob.com
 * @author alteredq / http://alteredqualia.com/
 * @author WestLangley / http://github.com/WestLangley
 * @author erich666 / http://erichaines.com
 */

// This set of controls performs orbiting, dollying (zooming), and panning.
// Unlike TrackballControls, it maintains the "up" direction object.up (+Y by default).
//
//    Orbit - left mouse / touch: one finger move
//    Zoom - middle mouse, or mousewheel / touch: two finger spread or squish
//    Pan - right mouse, or arrow keys / touch: three finger swipe

THREE.OrbitControls = function ( object, domElement ) {

	this.object = object;

	this.domElement = ( domElement !== undefined ) ? domElement : document;

	// Set to false to disable this control
	this.enabled = true;

	// "target" sets the location of focus, where the object orbits around
	this.target = new THREE.Vector3();

	// How far you can dolly in and out ( PerspectiveCamera only )
	this.minDistance = 0;
	this.maxDistance = Infinity;

	// How far you can zoom in and out ( OrthographicCamera only )
	this.minZoom = 0;
	this.maxZoom = Infinity;

	// How far you can orbit vertically, upper and lower limits.
	// Range is 0 to Math.PI radians.
	this.minPolarAngle = 0; // radians
	this.maxPolarAngle = Math.PI; // radians

	// How far you can orbit horizontally, upper and lower limits.
	// If set, must be a sub-interval of the interval [ - Math.PI, Math.PI ].
	this.minAzimuthAngle = - Infinity; // radians
	this.maxAzimuthAngle = Infinity; // radians

	// Set to true to enable damping (inertia)
	// If damping is enabled, you must call controls.update() in your animation loop
	this.enableDamping = false;
	this.dampingFactor = 0.25;

	// This option actually enables dollying in and out; left as "zoom" for backwards compatibility.
	// Set to false to disable...

JavaScript

var scene, renderer, camera;
var cube;
var controls;

init();
animate();

function init()
{
	renderer = new THREE.WebGLRenderer( {antialias:true} );
	var width = window.innerWidth;
	var height = window.innerHeight;
  renderer.setClearColor(0xFFFFFF, 1);
	renderer.setSize (width, height);
	document.body.appendChild (renderer.domElement);

	scene = new THREE.Scene();
	
	//camera = new THREE.PerspectiveCamera (45, width/height, 1, 10000);
  camera = THREE.OrthographicCamera(0, width, height, 0,      0,    100);
	camera.position.y = 0;
	camera.position.z = 5;
	//camera.lookAt (new THREE.Vector3(0,0,0));

  controls = new THREE.OrbitControls (camera, renderer.domElement);
    
var tmaterial = new THREE.PointsMaterial({
    color: 0xff0000,
    size: 5,
    opacity: 1
});

var tgeometry = new THREE.Geometry();
var pointCloud = new THREE.Points(tgeometry, tmaterial);
scene.add(pointCloud);

for(var i = 0; i< 1000; i++) {
    x = (Math.random() * 200) - 100;
    y = (Math.random() * 200) - 100;
    z = (Math.random() * 200) - 100;
    tgeometry.vertices.push(new THREE.Vector3(x, y, z));
}
tgeometry.verticesNeedUpdate = true;
tgeometry.elementsNeedUpdate = true;
tgeometry.computeVertexNormals();
renderer.render(scene, camera);
	
	window.addEventListener ('resize', onWindowResize, false);
}

function onWindowResize ()
{
	camera.aspect = window.innerWidth / window.innerHeight;
	camera.updateProjectionMatrix();
	renderer.setSize (window.innerWidth, window.innerHeight);
}

function animate()
{
	controls.update();
    requestAnimationFrame ( animate );  
	renderer.render (scene, camera);
}