How to: add cool effects to your webcam

I recently spoke to a friend who told me that her main reason for buying a MacBook was because of the ‘camera thing that makes your face go funny’. She was, of course, referring to the iSight and its Photo Booth application, which applies humourous, arty or psychodelic filters over whatever the built-in webcam is recording. Granted, it’s a fun feature of the Apple laptop but it shouldn’t be your number one reason for switching to a Mac, especially as you can replicate the Photo Booth functions on your PC.