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Old 04-19-2017, 03:41 PM   #1
harmonica44
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Question about using After Effects.

Basically in After Effects, I have a project, where I want to take apply effects to the video, but there is one section of the picture that I want to draw a shape around, and make it immune to change, compared to the rest of the picture, where I will be applying changes to.

I watched some AE tutorials but I cannot find any that talk about how to make shape around part of the video and make it immune to change compared to everything else. Is there a way of doing that in AE at all?
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Old 04-19-2017, 06:09 PM   #2
jax_rox
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Pre-compose the element(s) you want to keep the same, and make sure that Pre-comp layer is on top of the other layers.
You can draw a mask around anything using the pen or shape tools.
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Old 04-19-2017, 06:12 PM   #3
shortboy
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Have you tried inverting?
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Old 04-19-2017, 08:24 PM   #4
WalterB
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It is basic masking + layering.
Do the effect on the bottom layer. Have a copy of the layer without effect: draw mask around the part you want to be immune.

You topic title is really poor, btw.

"Okay, thanks. How do I make a mask?"
[G] activates the pencil tool. (Or switches to + or - or the > to make straight corners rouned or vice versa (or to control the arc)).
Or:
CTRL+N that creates a mask at the same size as your layer. Can be usefull, but not now.
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Old 04-19-2017, 10:00 PM   #5
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Okay thanks, that works!

Last edited by harmonica44; 04-20-2017 at 12:55 AM.
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