Automate adding multiple BG to the TV Show

If I understand correctly your issue, you could create a precomp with a colored solid for each of the 8 cameras to match in 3d the position of your background. Once you're done, you can just replace the solid with any new background plate you need or open the precomp and animate inside a change between multiple background plates.

Tudor "Ted" Jelescu
Senior VFX Artist

You could use Magnum the Edit Detector [link] to try to automatically find the shot changes and split the layer in AE.

As for automatically placing the correct background on each shot -- that's actually very complicated. If you could come up with certain patterns of pixels that are always green or always not green for each of the specific camera angles, you could use a series of expressions that sample the image and adjust the opacity of each background accordingly.

I'd suspect it'll take a lot longer to get this right than it will to just manually identify the shots. Consider using layer colors or maybe Zorro the Layer Tagger [link] to help you sort your shots.

Alternately, separate the shots onto separate tracks in Premiere and send them to AE one track at a time.

Walter Soyka
Principal & Designer at Keen Live
Motion Graphics, Widescreen Events, Presentation Design, and Consulting
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