Nuke Basics - The old Shuffle node

This is very embarrassing to admit, but when I started compositing, I really didn't understand what an Alpha Channel was.  I also would constantly confuse 'the part that goes away' with white and black.  Did the white part keep the image, or did the black part keep it?  It took a while to sink in, maybe two or three years...

There were two books that really helped me understand things.  One was Digital Compositing for Film and Video by Steve Wright, the other was Photoshop Channel Chops by David Biedny, Nathan Moody and Bert Monroy.  I just checked my Amazon account, and I bought those books just over twenty years ago.  They are just as relevant now as they were back then.

Understanding Channels is a essencial principle of compositing.  Channels are the building blocks of our images, being able to change and manipulate them is critical.  Nuke allows you to have over a thousand channels inside your comp at any one time.  The Shuffle and ShuffleCopy nodes allow you to move your channels from one image buffer to another.  The tutorial above explains how.

I made this tutorial several years ago when the Shuffle node was a lot less clear. Foundry have now updated this node so it’s much easier for new compositors to learn and understand. As I was going through and updating this site, I thought of just getting rid of this tutorial. I’m keeping it around just in case a new comper comes across this tool in an old archived script and needs help figuring it out.