examples/example42.html

<!DOCTYPE html>
<html>
 <head> 
  <title>Example 42 - Bump maps</title> 
  <style>
    body{
      margin: 0;
      overflow: hidden;
    }

    #stats {  /* Align stats top-left */
      position: absolute;
      left: 0px;
      top: 0px;
    }
  </style> 
  </head>
  <body>
  <!-- JavaScript libraries -->
  <script src="http://cdnjs.cloudflare.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> 
  <script src="http://cdnjs.cloudflare.com/ajax/libs/three.js/r67/three.js"></script>
  <script src="http://cdnjs.cloudflare.com/ajax/libs/stats.js/r11/Stats.min.js"></script>
  <script src="http://cdnjs.cloudflare.com/ajax/libs/dat-gui/0.5/dat.gui.min.js"></script>
  <!-- Javascript code that runs our Three.js examples --> 
  <script>
    // once everything is loaded, we run our Three.js stuff.
    $(function () {
      
      var stats = initStats();

      // create a scene, that will hold all our elements such as objects, cameras and lights.
      var scene = new THREE.Scene();

      // create a camera, which defines where we're looking at.
      var camera = new THREE.PerspectiveCamera(45, window.innerWidth / window.innerHeight, 0.1, 1000);

      // create a render and set the size
      var webGLRenderer = new THREE.WebGLRenderer();
      webGLRenderer.setClearColor(0xEEEEEE, 1.0);
      webGLRenderer.setSize(window.innerWidth, window.innerHeight);

      var sphere1 = createMesh(new THREE.BocGeometry(15, 15, 2), "stone.jpg");
      sphere1.rotation.y = -0.5;
      sphere1.position.x = 12;
      scene.add(sphere1);

      var sphere2 = createMesh(new THREE.BoxGeometry(15, 15, 2), "stone.jpg", "stone-bump.jpg");
      sphere2.rotation.y = 0.5;
      sphere2.position.x = -12;
      scene.add(sphere2);

      var floorTex = THREE.ImageUtils.loadTexture("assets/textures/general/floor-wood.jpg")
      var plane = new THREE.Mesh(
        new THREE.CubeGeometry(200, 100, 0.1, 30), 
        new THREE.MeshPhongMaterial({color: 0x3c3c3c, map: floorTex})
      );
      plane.position.y = -7.5;
      plane.rotation.x = -0.5 * Math.PI;
      scene.add(plane);

      // position and point the camera to the center of the scene
      camera.position.x = 00;
      camera.position.y = 12;
      camera.position.z = 28;
      camera.lookAt(new THREE.Vector3(0, 0, 0));

      var ambiLight = new THREE.AmbientLight(0x242424)
      scene.add(ambiLight);

      var light = new THREE.SpotLight();
      light.position.set(0, 30, 30);
      light.intensity = 1.2;
      scene.add(light);

      // add the output of the renderer to the html element
      $('body').append(webGLRenderer.domElement);

      // call the render function
      var step = 0;

      // setup the control gui
      var controls = new function () {
        this.bumpScale = 0.2;
        this.changeTexture = "weave";
        this.rotate = false;

        this.changeTexture = function (e) {
          var texture = THREE.ImageUtils.loadTexture("assets/textures/general/" + e + ".jpg");
          sphere2.material.map = texture;
          sphere1.material.map = texture;

          var bump = THREE.ImageUtils.loadTexture("assets/textures/general/" + e + "-bump.jpg");
          sphere2.material.bumpMap = bump;
        }

        this.updateBump = function (e) {
          sphere2.material.bumpScale = e;
        }
      };

      var gui = new dat.GUI();
      gui.add(controls, "bumpScale", -2, 2).onChange(controls.updateBump);
      gui.add(controls, "changeTexture", ['stone', 'weave']).onChange(controls.changeTexture);
      gui.add(controls, "rotate");

      render();

      function createMesh(geom, imageFile, bump) {
        var texture = THREE.ImageUtils.loadTexture("assets/textures/general/" + imageFile)
        geom.computeVertexNormals();
        var mat = new THREE.MeshPhongMaterial();
        mat.map = texture;

        if (bump) {
          var bump = THREE.ImageUtils.loadTexture("assets/textures/general/" + bump)
          mat.bumpMap = bump;
          mat.bumpScale = 0.2;
        }

        var mesh = new THREE.Mesh(geom, mat);

        return mesh;
      }

      function render() {
        stats.update();

        if (controls.rotate) {
          sphere1.rotation.y -= 0.01;
          sphere2.rotation.y += 0.01;
        }

        // render using requestAnimationFrame
        requestAnimationFrame(render);
        webGLRenderer.render(scene, camera);
      }

      function initStats() {
        stats = new Stats();
        stats.setMode(0); // 0: fps, 1: ms
        $('body').append(stats.domElement);
        return stats;
      }
    });
  </script>  
 </body>
</html>