Modifying visual media via code has always been a fascination of mine. Probably because I'm not a designer and I tend to stick to what I'm good at. One visual effect I love is seeing video reversed -- it provides a sometimes hilarious perspective on a given event.
Take this reversed water effect for example:
To reverse an animated GIF or video, you can use the ImageMagick library:
If you're interested in media engineering, check out my previous ImageMagick tutorials. These awesome media libraries are as close to an artist I will ever get!
One event that's always been lacking within the document is a signal for when the user is looking at a given tab, or another tab. When does the user switch off our site to look at something else? When do they come back?
Before we get started, it's worth me spending a brief moment introducing myself to you. My name is Mark (or @integralist if Twitter happens to be your communication tool of choice) and I currently work for BBC News in London England as a principal engineer/tech...
The idea of CSS sprites is pretty genius. For those of you who don't know the idea of a sprite, a sprite is basically multiple graphics compiled into one image. The advantages of using sprites are:
Fewer images for the browser to download, which means...
I released a MooTools comment preview script yesterday and got numerous requests for a jQuery version. Ask and you shall receive! I'll use the exact same CSS and HTML as yesterday.
The XHTML
The CSS
The jQuery JavaScript
On the keypress and blur events, we validate and...
