alpha channel

Alpha Channels: The good, the bad & the ugly

Alpha Channels: The good, the bad & the ugly

Alpha channels are the basis of digital compositing, but there are two different types – straight and premultiplied.  Understanding the difference can make or break your composites – if the…

Classic Course: Repeat Edge Pixels

Classic Course: Repeat Edge Pixels

As we mentioned in our last post, we’re going to be publishing on PVC videos from our retired Lynda.com course Insight Into Effects that we think are still…

Keying and compositing in NukeX

Keying and compositing in NukeX

You’ve seen it before: composited people with hair helmets. If you’ve done any keying yourself, you probably notice it all the time. And you’ve seen worse: webbed…