Animated 3D Background Pattern using HTML5 < canvas >

Hi friends, today we are going to see a cool example of animated 3D Background using HTML5 <canvas> and javascript. The <canvas> element is part of HTML5 and allows for dynamic, script-able rendering of 2D shapes and bitmap images. It is a low level, procedural model that updates a bitmap and does not have a built-in scene graph. The <canvas> element is only a container for graphics… read more @ http://www.css-jquery-design.com/…

Animated 3D Perspective Background Patterns using HTML5 Canvas

What is canvas element in HTML?

Canvas was initially introduced by Apple for use inside their own Mac OS X WebKit component in 2004 read more @ http://www.css-jquery-design.com/…

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3D Parallax effect with CSS, javascript or jQuery

Parallax effect is a long-known and widely used animation effect. Lately, the parallax effect has become a wide-spread and quite a trend element in web design, often referred to as “parallax scrolling”. Internet if full on many great examples of application of this effect in web design. As I planned to create a cool parallax animated background, my first goal was to write the shortest and simplest code to achieve maximum awesomeness! I’ll show you how I did it. In this tutorial, I’ll teach you the simplest parallax scrolling technique. Here, I am going to introduce you, a most flexible/responsive slider i.e. Parallaxfx_DG. It is so easy and useful. I have decided that I will post a page dedicated to this slider with it’s features and API later.
read more @ http://www.css-jquery-design.com/…

The idea of the parallax effect it in web design is built around giving a page depth by using several layers of images, all moving at different speeds in response to movement of the mouse or mouse scroller, so that a viewer get a full sense of 3D on the page. Parallax scrolling is an interesting technique, where, as you scroll, the background images translate slower than the content in the foreground, creating the illusion of 3D depth. read more @ http://www.css-jquery-design.com/ …

parallax-effect-with-javascript-css3-jquery-beautiful-place-background

Javascript

I have created a JavaScript plugin for this parallax effect. Plugin writes HTML,  its attributes with CSS animation effect in background read more @ http://www.css-jquery-design.com/….
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CSS3 3D effect, Shine text with css3 keyframe animation, Scrolling Page Background with jQuery – Happy New Year

On the occasion of New Year 2013, I thought to wish this festival by creating a nice webpage greeting. So, today I created this greeting card using 3D  and shining text effect with the help of CSS3, and scrolling background with JavaScript. I hope you all will enjoy this holiday as well as my web-card too :) .

Introduction

Greeting, today we are going to make a scrolling background effect. This script will move the background of any html tag, either vertically or horizontally. I used this script in one of my greeting card too which has a blue sky with clouds and it makes the whole website came alive. I think that’s pretty impressive. In this card you will find texts with different CSS effects like: 3D emboss, continuous spotlight shine effect, text shadow etc.

3d-shine-text-css3-scrolling-background-happy-new-year

The CSS

I have Used multiple text-shadows to create 3D text on any HTML element. No extra HTML, no extra headaches, just awesomesauce.
Works in the latest builds of Safari, Chrome, Firefox, and Opera.

h1 {
  margin:1.2em auto;
  font: bold 100px/1 "Helvetica Neue", Helvetica, Arial, sans-serif;
  color: #fff;
  text-shadow: 0 1px 0 #cccccc, 0 2px 0 #c9c9c9, 0 3px 0 #bbbbbb, 0 4px 0 #b9b9b9, 0 5px 0 #aaaaaa, 0 6px 1px rgba(0, 0, 0, 0.1), 0 0 5px rgba(0, 0, 0, 0.1), 0 1px 3px rgba(0, 0, 0, 0.3), 0 3px 5px rgba(0, 0, 0, 0.2), 0 5px 10px rgba(0, 0, 0, 0.25), 0 10px 10px rgba(0, 0, 0, 0.2), 0 20px 20px rgba(0, 0, 0, 0.15);
  -webkit-transition: .2s all linear;
}

Text shine Effect created with WebKit-specific CSS3 properties. You’ll need Safari or Chrome to enjoy key-frame animation.

p.shine{
    font-size: 3em;
    margin: 0 auto; padding:0;
    width: 95%;
}
.shine{
    background: #222 -webkit-gradient(linear, left top, right top, from(#ccc), to(#fff), color-stop(1, #f0f)) 0 0 no-repeat;
    background-size: 400px; -webkit-background-size: 400px; 
    -moz-background-size: 400px; -o-background-size: 400px;    
    color: rgba(255, 255, 255, 0.7);	
    background-clip: text; -webkit-background-clip: text; 
        -moz-background-clip: text; -o-background-clip: text;	
	-webkit-animation: shine 2s infinite;
	-moz-animation: shine 2s infinite;
	-o-animation: shine 2s infinite;
	-ms-animation: shine 2s infinite;
	animation: shine 2s infinite; 
}

@-webkit-keyframes shine{
    0%{background-position: top left;}
    100%{background-position: top right;}
}
@-moz-keyframes shine{
    0%{background-position: top left;}
    100%{background-position: top right;}
}
@-o-keyframes shine{
    0%{background-position: top left;}
    100%{background-position: top right;}
}
@keyframes shine{
    0%{background-position: top left;}
    100%{background-position: top right;}
}

For page background I used cloud in png format.

body{background:url(bg_clouds.png) 0 0}

The HTML

<h1>Happy New Year 2013</h1>
<p class="shine">The New Year is the time of unfolding horizons and the realization of dreams, may you rediscover new strength and garner faith with you, and be able to rejoice in the simple pleasures that life has to offer and put a brave front for all the challenges that may come your way.<br>
Wishing you a lovely New Year..</p>

The JavaScript – jQuery

We have to add jquery library in body first, after that we animate our page background with css background-position properties. I always prefer to use JavaScript files before close of body tag.

<script src="http://code.jquery.com/jquery-latest.js" type="text/javascript"></script>
<script type="text/javascript">var scrollSpeed = 70; 
    var current = 0;
    function bgscroll(){
        current -= 1;   
        // move the background with backgrond-position css properties
        $('body').css("backgroundPosition", 1 ? current+"px 0" : "0 " + current+"px");   
    }
     setInterval(bgscroll, scrollSpeed);   </script>

view demo

Happy New Year!

I hope you like the result and don’t hesitate to share your thoughts about it. Thanks for reading!

Posted by: Dhiraj kumar

Random 3D Explosions, 3D clouds – Effects with CSS 3D and jQuery

Introduction

This tutorial will try to guide you through the steps to create a 3D-like, explosions in sky or billboard-based clouds. There are a few advanced topics, mainly how 3D transformations via CSS properties work. If you want to find more information, this is a nice place to begin.

If you’re in a hurry, just check the final result.

css-3d-explosive-clouds

The tutorial is divided into sections, each with a different step to understand and follow the process, with HTML, CSS and Javascript blocks. Each step is based on the previous one, and has a link to test the code. The code in the tutorial is a simplified version of the demos, but the main differences are documented on every section.

HTML

First, we need two div elements: viewport and world. All the rest of the elements will be dynamically created.

Viewport covers the whole screen and acts as the camera plane. Since in CSS 3D Transforms there is no camera per se, think of it as a static sheet of glass through which you see a world that changes orientation relative to you. We’ll position all our world objects (or scene) inside it, and that’s what will be transformed around.

World is a div that we are going to use to anchor all our 3D elements. Transforming (rotating, translating or scaling) world will transform all our elements. For brevity and from here on, I’m using non-prefixed CSS properties. Use the vendor prefix (-webkit, -moz, -o, -ms, etc.) where appropriate.

This is all the markup we’ll need:

<div id="viewport">
    <div id="world"></div>
</div>

CSS

These next are our two CSS definitions. It’s very important to center the div that contains our scene (world in our case) in the viewport, or the scene will be rendered with an offset! Remember that you are still rotating an element that is positioned inside the document, exactly like any other 2D element.

#viewport {
	-webkit-perspective: 1000; -moz-perspective: 1000; -o-perspective: 1000; 
	position: absolute; 
	left: 0; 
	top: 0; 
	right: 0; 
	bottom: 0; 
	overflow: hidden;
	background-image: linear-gradient(bottom, rgb(69,132,180) 28%, rgb(31,71,120) 64%);
	background-image: -o-linear-gradient(bottom, rgb(69,132,180) 28%, rgb(31,71,120) 64%);
	background-image: -moz-linear-gradient(bottom, rgb(69,132,180) 28%, rgb(31,71,120) 64%);
	background-image: -webkit-linear-gradient(bottom, rgb(69,132,180) 28%, rgb(31,71,120) 64%);
	background-image: -ms-linear-gradient(bottom, rgb(69,132,180) 28%, rgb(31,71,120) 64%);
	background-image: -webkit-gradient(
			linear,
			left bottom,
			left top,
			color-stop(0.28, rgb(69,132,180)),
			color-stop(0.64, rgb(31,71,120))
	);
}

#world {
	position: absolute; 
	left: 50%; 
	top: 50%; 
	margin-left: -256px; 
	margin-top: -256px; 
	height: 512px; 
	width: 512px; 
	-webkit-transform-style: preserve-3d; 
	-moz-transform-style: preserve-3d; 
	-o-transform-style: preserve-3d; 
	pointer-events: none;
}

CSS For Adding Clouds Base

Now we start adding real 3D content. We add some new div which are positioned in the space, relatively to world. It’s esentially adding several absolute-positioned div as children of world, but using translate in 3 dimensions instead of left and top. They are centered in the middle of world by default. The width and height don’t really matter, since these new elements are containers for the actual cloud layers. For commodity, it’s better to center them (by setting margin-left and margin-top to negative half of width and height).

.cloudBase {
		position: absolute; 
		left: 256px; 
		top: 256px; 
		width: 20px; 
		height: 20px; 
		margin-left: -10px; 
		margin-top: -10px
	}

CSS for Clouds Layer

Now things start getting interesting. We add several absolute-positioned .cloudLayer div elements to each .cloudBase. These will hold our cloud textures.

.cloudLayer {
		position: absolute; 
		left: 50%; 
		top: 50%; 
		width: 256px; 
		height: 256px; 
		margin-left: -128px; 
		margin-top: -128px; 
		-webkit-transition: opacity .5s ease-out; 
		-moz-transition: opacity .5s ease-out; 
		-o-transition: opacity .5s ease-out;
	}

jQuery (JavaScript)

We add generate() and createCloud() functions to populate world. Note that random_{var} are not real variables but placeholder names for the real code, which should return a random number between the specified range.

var layers = [],
	objects = [],
	textures = [],

	world = document.getElementById( 'world' ),
	viewport = document.getElementById( 'viewport' ),

	d = 0,
	p = 400,
	worldXAngle = 0,
	worldYAngle = 0,
	computedWeights = [];

	viewport.style.webkitPerspective = p;
	viewport.style.MozPerspective = p;
	viewport.style.oPerspective = p;
	textures = [
		{ name: 'white cloud', 	file: 'cloud.png'	, opacity: 1, weight: 0 },
		{ name: 'dark cloud', 	file: 'darkCloud.png'	, opacity: 1, weight: 0 },
		{ name: 'smoke cloud', 	file: 'smoke.png'	, opacity: 1, weight: 0 },
		{ name: 'explosion', 	file: 'explosion.png'	, opacity: 1, weight: 0 },
		{ name: 'explosion 2', 	file: 'explosion2.png'	, opacity: 1, weight: 0 },
		{ name: 'box', 		file: 'box.png'		, opacity: 1, weight: 0 }
	];

	function setTextureUsage( id, mode ) {
		var modes = [ 'None', 'Few', 'Normal', 'Lot' ];
		var weights = { 'None': 0, 'Few': .3, 'Normal': .7, 'Lot': 1 };
		for( var j = 0; j < modes.length; j++ ) {
			var el = document.getElementById( 'btn' + modes[ j ] + id );
			el.className = el.className.replace( ' active', '' );
			if( modes[ j ] == mode ) {
				el.className += ' active';
				textures[ id ].weight = weights[ mode ];
			}
		}
	}
	setTextureUsage( 0, 'Few' );
	setTextureUsage( 1, 'Few' );
	setTextureUsage( 2, 'Normal' );
	setTextureUsage( 3, 'Lot' );
	setTextureUsage( 4, 'Lot' );

	generate();

	function createCloud() {

		var div = document.createElement( 'div'  );
		div.className = 'cloudBase';
		var x = 256 - ( Math.random() * 512 );
		var y = 256 - ( Math.random() * 512 );
		var z = 256 - ( Math.random() * 512 );
		var t = 'translateX( ' + x + 'px ) translateY( ' + y + 'px ) translateZ( ' + z + 'px )';
		div.style.webkitTransform = t;
		div.style.MozTransform = t;
		div.style.oTransform = t;
		world.appendChild( div );

		for( var j = 0; j < 5 + Math.round( Math.random() * 10 ); j++ ) {
			var cloud = document.createElement( 'img' );
			cloud.style.opacity = 0;
			var r = Math.random();
			var src = 'troll.png';
			for( var k = 0; k < computedWeights.length; k++ ) { 
				if( r >= computedWeights[ k ].min && r <= computedWeights[ k ].max ) { 					
( function( img ) { img.addEventListener( 'load', function() {
 						img.style.opacity = .8;
					} ) } )( cloud );
 					src = computedWeights[ k ].src; 
}} 
cloud.setAttribute( 'src', src ); 
cloud.className = 'cloudLayer'; 		 			
var x = 256 - ( Math.random() * 512 ); 
var y = 256 - ( Math.random() * 512 ); 
var z = 100 - ( Math.random() * 200 ); 
var a = Math.random() * 360; 
var s = .25 + Math.random(); 
x *= .2; y *= .2; 
cloud.data = {x: x, y: y, z: z, a: a, s: s, speed: .1 * Math.random()}; 
var t = 'translateX( ' + x + 'px ) translateY( ' + y + 'px ) translateZ( ' + z + 'px ) rotateZ( ' + a + 'deg ) scale( ' + s + ' )'; 
cloud.style.webkitTransform = t; 
cloud.style.MozTransform = t; 			
cloud.style.oTransform = t; 			
div.appendChild( cloud ); 			
layers.push( cloud ); 		} 		 		
return div; 	 	
function generate() { 		
objects = []; 		
if ( world.hasChildNodes() ) { 			
while ( world.childNodes.length >= 1 ) {
				world.removeChild( world.firstChild );       
			} 
		}
		computedWeights = [];
		var total = 0;
		for( var j = 0; j < textures.length; j++ ) { 			
if( textures[ j ].weight > 0 ) {
				total += textures[ j ].weight;
			}
		}
		var accum = 0;
		for( var j = 0; j < textures.length; j++ ) { 			
if( textures[ j ].weight > 0 ) {
				var w = textures[ j ].weight / total;
				computedWeights.push( {
					src: textures[ j ].file,
					min: accum,
					max: accum + w
				} );
				accum += w;
			}
		}
		for( var j = 0; j < 5; j++ ) {
			objects.push( createCloud() );
		}
	}

Result

For the final effect, we fill cloudLayer div for an img with a cloud texture. The textures should be PNG with alpha channel to get the effect right.

css-3d-explosive-clouds

Conclusion

Of course, you can use any texture or set of textures you want: smoke puffs, plasma clouds, green leaves, flying toasters… Just change the background-image that a specific kind of cloud layer uses. Mixing different textures in different proportions gives interesting results.

Adding elements in random order is fine, but you can also create ordered structures, like trees, duck-shaped clouds or complex explosions. Try following a 3D curve and create solid trails of clouds. Create a multiplayer game to guess the shape of a 3D cloud. The possibilities are endless!

I hope it’s been an interesting tutorial and not too hard to follow.

view demo

I hope you like the result and don’t hesitate to share your thoughts about it. Thanks for reading!

Posted by: Dhiraj kumar