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JavaScript

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HTML 

              
                <div id="container"></div>
!

CSS 

              
                body {
  background: black;
  text-align: center;
}

/* Demo by Byron Houwens.
See: http://www.sitepoint.com/building-earth-with-webgl-javascript/

Full animated demo is here:

https://codepen.io/SitePoint/details/wBERzm/
*/
!

JS 

              
                var WIDTH = window.innerWidth - 30,
    HEIGHT = window.innerHeight - 30;
 
var angle = 45,
    aspect = WIDTH / HEIGHT,
    near = 0.1,
    far = 3000;

var container = document.getElementById('container');

var camera = new THREE.PerspectiveCamera(angle, aspect, near, far);
camera.position.set(0, 0, 0);
var scene = new THREE.Scene();

var light = new THREE.SpotLight(0xFFFFFF, 1, 0, Math.PI / 2, 1);
light.position.set(4000, 4000, 1500);
light.target.position.set (1000, 3800, 1000);

scene.add(light);

var earthGeo = new THREE.SphereGeometry (30, 40, 400), 
    earthMat = new THREE.MeshPhongMaterial(); 

// diffuse map
earthMat.map = THREE.ImageUtils.loadTexture('https://s3-us-west-2.amazonaws.com/s.cdpn.io/123941/earthmap.jpg');

// bump map
earthMat.bumpMap = THREE.ImageUtils.loadTexture('https://s3-us-west-2.amazonaws.com/s.cdpn.io/123941/bump-map.jpg');
earthMat.bumpScale = 8;

var earthMesh = new THREE.Mesh(earthGeo, earthMat);
earthMesh.position.set(-100, 0, 0); 
earthMesh.rotation.y=5;

scene.add(earthMesh);

camera.lookAt( earthMesh.position );

//renderer
var renderer = new THREE.WebGLRenderer({antialiasing : true});
renderer.setSize(WIDTH, HEIGHT);
renderer.domElement.style.position = 'relative';

container.appendChild(renderer.domElement);
renderer.autoClear = false;
renderer.shadowMapEnabled = true;

function animate() {
   requestAnimationFrame(animate);
   render(); 
}

function render() {
   var clock = new THREE.Clock();
   var delta = clock.getDelta(); 

   earthMesh.rotation.y += 0.2 * delta;
   renderer.render(scene, camera);
}

animate();
!
999px

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