WebGL- 3D Code Platform with Three.js and Sim.js

Written by @m_k_amin 16 July 2013

The HTML5 WebGL API is a low level API, which means you must work hard to achieve few. For most users it doesn't make sense to deal with 3D programming directly; instead, it’ better to use higher level 3D engines like Three.js and Sim.js. With these two libraries you can easily use a template to ease your projects. In the following example we have used this template and create two objects in it; a rotating cube and a light. Follow the comments in the code and create your own 3D objects like what we have done here. Our used libraries are found here: http://html5freecode.com/libs/libs.zip

Code Snippet:

                                                
                                                <!-- this script is provided by https://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);



    var light= new Light();

    light.init();

    this.addObject(light);    

}

//Objects Nececssary Definitions:

Cube = function(){

	Sim.Object.call(this);}

Cube.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-wood.jpg";

    var geometry = new THREE.CubeGeometry(1, 2, 1);

    var texture = THREE.ImageUtils.loadTexture(map);

    var material = new THREE.MeshPhongMaterial( { map: texture } );

    var mesh = new THREE.Mesh( geometry, material ); 

    mesh.rotation.x = 0.5;

    this.setObject3D(mesh);

}

Light.prototype.init = function(){

	var lit = new THREE.PointLight( 0xffffff, 2, 9);

	lit.position.set(1, 1, 4);

    this.setObject3D(lit);    

}



//The Changes of the Object in Each Scene:

Cube.prototype.update = function(){

	this.object3D.rotation.y += 0.01;

	this.object3D.rotation.z += 0.01;

	this.object3D.rotation.x += 0.01;

}

</script>

</head>

<body onLoad="onLoad();" style="">

	<div style="text-align: left"><font face="Tahoma"><a target="_blank" href="https://html5freecode.com"><span style="font-size: 8pt; text-decoration: none">HTML5 Free Code</span></a></font></div>

    <div id="container" style="width:95%; height:80%; overflow:hidden; position:absolute; background-color:#000000"></div>

</body>

</html>

<a target='_blank' href='https://www.html5freecode.com' style='font-size: 8pt; text-decoration: none'>Html5 Free Codes</a>                                                
                                            

Example:


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