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replacing flock of birds with something else?

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Jon Iversonreplacing flock of birds with something else?
by on Jul 12, 2012 at 2:39:24 pm

I need to replace each bird in a flock with a big letter B. Is there a simple way to do this in AE? Nothing else in the scene moves except the birds, and they go in all directions. I have the birds against a totally blue sky and it keys out nicely just leaving the birds. I need the letter B to not just replace each bird, but also follow its same track. Thanks for your help.


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Dave LaRondeRe: replacing flock of birds with something else?
by on Jul 12, 2012 at 2:49:52 pm

Can you build a clean plate out of the existing video? Motion track the existing birds, then apply a track to a letter over the clean plate.

Dave LaRonde
Sr. Promotion Producer
KCRG-TV (ABC) Cedar Rapids, IA


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Tudor "Ted" JelescuRe: replacing flock of birds with something else?
by on Jul 12, 2012 at 10:02:44 pm

Similar to Dave's suggestion, I would start by creating a clean plate, but instead of tracking each bird, I would use a 3d tracker like Camera Tracker from the Foundry to track the footage, then, instead of creating a camera solve, I would create a Null from each of the track points that track the birds and parent a layer with the letter B to it.

Tudor "Ted" Jelescu
Senior VFX Artist


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