Lens Flare in AE and Premultiplication Explained

Adobe After Effects Tutorial at Creative COW

Ben Rollason
London England

©2010 CreativeCOW.net. All rights reserved.

Article Focus:
Ben reveals not only the easy steps to giving a lens flare an alpha channel for exporting, but also explains what premultiplication means. With this understanding, you may more easily solve some of your trickier compositing problems. In most programs, such as Nuke, Fusion, or Shake, you control premultiplication and predivison manually. Since After Effects does this all for you, it can become very frustrating if you are accustomed to doing this manually and find that you cannot in AE. This tutorial will explain a little background information on how compositing applications create a composite.

This tutorial is also available as a podcast.

Comments

Re: Lens Flare in AE and Premultiplication Explained
by ben rollason

Hi Michael...

Thanks for the comments. Glad it's useful.

Verbose? Maybe a bit, but you never know what level folks are at with their AE and premultiplication is an important idea that's not majorly intuitive.

Perhaps I'll speed it up a bit next time, though! :)

-B.

vfx.benrollason.com

Re: Lens Flare in AE and Premultiplication Explained
by Michael Heid

Great information Ben thanks! I've been wondering how to do this for a long time. One other comment, this is a remarkably verbose tutorial that could have the same amount of information in half the time. Thanks again!

Re: Lens Flare in AE and Premultiplication Explained
by Roland R. Kahlenberg

Welcome aboard Ben. I'll take a look at the article shortly.

Cheers
RoRK

Sell your AEPs with broadcastGEMs' DVD series of templates. Click here for more

Re: Lens Flare in AE and Premultiplication Explained
by ben rollason

Thanks Roland. I hope you like it.

-Ben.

vfx.benrollason.com

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