From the course: Editing with Composites and Effects in Avid Media Composer

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Understanding alpha channels outside of Avid

Understanding alpha channels outside of Avid - Media Composer Tutorial

From the course: Editing with Composites and Effects in Avid Media Composer

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Understanding alpha channels outside of Avid

Okay so we've identified what alpha channels are; the layer that contains the transparency information within graphics and movies that allow us to composite different video layers together. In this movie, we'll explore how to create alpha channels outside of Avid using some of the most common graphics creation programs: Adobe Photoshop and Adobe After Effects. So I'm in Photoshop right now, and I have a graphic. And it's comprised of three layers, and we have a transparent background. So it's ready to go, right? Well, not exactly. A lot of people do think that transparent background in Photoshop translates to a transparent background outside of Photoshop. But that's not true. If I come up to File > Save As, you can see that Alpha Channels is one of the options, but right now it's grayed out and I can't check it. So we need to add an alpha channel. To do that I'm going to come over to Channels, then I'm going to come down to Create New Channel, and I will press that button, and by…

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