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Written by 17 July 2013
One of 3D basic shapes is sphere. HTML5 WebGL by using Three.js and Sim.js libraries become a powerful tool for creating such a shape. In this example we have made 5 incomplete spheres and a complete one. We have used two lights and an orthogonal camera to have a better perspective of the scene. Also by rotating the 3D spheres in z an x axes, you can see all parts of them. Our used libraries are found here: http://html5freecode.com/libs/libs.zip
<!-- this script is provided by www.html5freecode.com coded by: Kerixa Inc. -->
<!-- This Script is from www.html5freecode.com, Coded by: Kerixa Inc-->
<!DOCTYPE html>
<html>
<head>
<title>Welcome to WebGL</title>
<script src="http://www.html5freecode.com/libs/Three.js"></script>
<script src="http://www.html5freecode.com/libs/jquery-1.6.4.js"></script>
<script src="http://www.html5freecode.com/libs/jquery.mousewheel.js"></script>
<script src="http://www.html5freecode.com/libs/RequestAnimationFrame.js"></script>
<script src="http://www.html5freecode.com/libs/sim.js"></script>
<script>
var renderer = null, scene = null,camera = null,mesh = null;
function onLoad(){
var container = document.getElementById("container");
var app = new MyApp();
app.init({ container: container });
app.run();
}
MyApp = function(){
Sim.App.call(this);}
MyApp.prototype = new Sim.App();
MyApp.prototype.init = function(param){
Sim.App.prototype.init.call(this, param);
// Create Objects and Load them Here:
var cube = new Cube();
cube.init();
this.addObject(cube);
sph= new Array()
for (i=1; i<=6; i++){
sph[i]= new Sphere();
sph[i].init(i);
this.addObject(sph[i]);
}
var light= new Light();
light.init(-20,6,1);
this.addObject(light);
var light2= new Light();
light2.init(40,6,1);
this.addObject(light2);
var k= 30;
this.camera= new THREE.OrthographicCamera( container.offsetWidth/ - k, container.offsetWidth/ k, container.offsetHeight/ k, container.offsetHeight/ - k, -500, 2000 );
this.camera.position.y= 2;
this.camera.position.z= 3;
var a = new THREE.Vector3(0 , 0.5, 0 );
this.camera.lookAt(a);
}
//Objects Nececssary Definitions:
Cube = function(){
Sim.Object.call(this);}
Cube.prototype = new Sim.Object();
Sphere = function(){
Sim.Object.call(this);}
Sphere.prototype = new Sim.Object();
Light = function(){
Sim.Object.call(this);}
Light.prototype = new Sim.Object();
//Define Objects Specifications:
Cube.prototype.init = function(){
var map = "http://www.html5freecode.com/files/webgl-texture-green.jpg";
var geometry = new THREE.CubeGeometry(40, 1, 40);
var texture = THREE.ImageUtils.loadTexture(map);
var material = new THREE.MeshPhongMaterial( { map: texture } );
var mesh = new THREE.Mesh( geometry, material );
mesh.position.set(0,-1,0)
this.setObject3D(mesh);
}
Sphere.prototype.init = function(ind){
var map = "http://www.html5freecode.com/files/webgl-texture-wood.jpg";
var geometry = new THREE.SphereGeometry(1.5, 32, 32, ind/3*Math.PI, 2*Math.PI, ind/6*Math.PI, Math.PI);
var texture = THREE.ImageUtils.loadTexture(map);
var material = new THREE.MeshPhongMaterial( { map: texture } );
var mesh = new THREE.Mesh( geometry, material );
mesh.position.set(ind*4-13.5,1,-4)
this.setObject3D(mesh);
}
Light.prototype.init = function(x,y,z){
var lit = new THREE.PointLight( 0xffffff, 1.2);
lit.position.set(x, y, z);
this.setObject3D(lit);
}
//The Changes of the Object in Each Scene:
Sphere.prototype.update = function(){
this.object3D.rotation.z += 0.01;
this.object3D.rotation.x += 0.01;
}
</script>
</head>
<body onLoad="onLoad();" style="">
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<div id="container" style="width:400px; height:80%; overflow:hidden; position:absolute; background-color:#000000"></div>
</body>
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