bumpMap

compare bump vs normal maps

HTML

<div id="info">bump map <br/>normalMap vs. bumpMap</div>
<script src="http://cdnjs.cloudflare.com/ajax/libs/three.js/r70/three.min.js"></script>
<script src="https://dl.dropboxusercontent.com/u/3587259/Code/Threejs/OrbitControls.js">
    
</script>

CSS

#info {
    position: absolute;
    top: 0px;
    width: 100%;
    padding: 10px;
    text-align: center;
    color: #ffff00;
}
body {
    overflow: hidden;
}
}

JavaScript

var renderer, geometry, material, mesh, light;
var scene, camera;
var controls;
var pointLight;
var angle = 0, sign = 1;

init();
animate();

// texture from webglplayground
// http://webglplayground.net/documentation
//
function init() {
    scene = new THREE.Scene();
    camera = new THREE.PerspectiveCamera(50, window.innerWidth / window.innerHeight, 0.1, 10000);
    camera.position.z = 800;
    camera.lookAt(new THREE.Vector3(0, 0, 0));

    THREE.ImageUtils.crossOrigin = '';
    var brick1 = THREE.ImageUtils.loadTexture('http://i.imgur.com/8QLabSW.jpg');
    var brick1_bw = THREE.ImageUtils.loadTexture('http://i.imgur.com/KEt38cq.jpg');
    //brick1_bw.repeat.set (3,3);
    brick1_bw.wrapS = brick1_bw.wrapT = THREE.RepeatWrapping;

    var brick1_normalmap = THREE.ImageUtils.loadTexture('http://i.imgur.com/nv73w3f.jpg');

    var back = new THREE.Mesh(new THREE.PlaneGeometry(200, 200),
    new THREE.MeshPhongMaterial({
        //map: brick1,
        color: 0xf6c4df,
        //bumpMap: brick1_bw,
        //bumpScale: 0.8,
        normalMap: brick1_normalmap,
        side: THREE.DoubleSide
    }));
    scene.add(back);
    back.material.normalScale.set(0.91, 0.91);
    back.position.set(-120, 0, 0);

    var back2 = back.clone();
    back2.material = new THREE.MeshPhongMaterial({
        map: brick1,
        color: 0xf6c4df,
        bumpMap: brick1_bw,
        bumpScale: 0.8,
        normalMap: brick1_normalmap,
        side: THREE.DoubleSide
    });
    scene.add(back2);
    back2.position.set(120, 0, 0);

    pointLight = new THREE.PointLight(0xffffff);
    //pointLight.position.set(0, 300, 200);
    scene.add(pointLight);


    renderer = new THREE.WebGLRenderer();
    renderer.setSize(window.innerWidth, window.innerHeight);
    renderer.setClearColor(0x666666);

    controls = new THREE.OrbitControls(camera, renderer.domElement);

    document.body.appendChild(renderer.domElement);
}

function animate() {
    angle += 0.0052*sign;
    if (angle > 3.1416 ||...