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Masks in after effects leaving weird grey outlines

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Arindam Sen
Masks in after effects leaving weird grey outlines
on Mar 6, 2016 at 10:35:12 am

I added and subtracted the same mask from the same image but its leaving a weird grey outline.

Here is an example of the same:






There is no feather on the mask. Is there any particular setting that needs to be checked because i don't remember encountering this before.


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Chris Evans
Re: Masks in after effects leaving weird grey outlines
on Mar 7, 2016 at 5:23:02 pm

It's the result of aliasing. You'll just have to change the mask expansion on one of the masks by a pixel or two.


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Arindam Sen
Re: Masks in after effects leaving weird grey outlines
on Mar 8, 2016 at 3:42:04 am

That did the trick. Thanks so much Chris!


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