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sharp mask edges

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dennis derschow
sharp mask edges
on May 12, 2010 at 8:16:53 am

hi folks,

really hope you can help my.
i'm trying to mask a video in ae cs4.
but the thing is the edges of the mask never come realy sharp n crisp.
it's seems like it's always has a soft mask border of about 1 px.
can anyone give me a hint what i'm doing wrong?

thx in advance

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Dave LaRonde
Re: sharp mask edges
on May 12, 2010 at 3:10:52 pm

You probably made the mask when you magnified the window -- 200, 400, 800% or something. AE can do subpixel rendering to preserve smoothness. Your mask vertices and mask path are probably cutting through pixels rather than between pixels, giving it a feathered look.

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

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