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Masking question...

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Jim Bond
Masking question...
on Jan 10, 2015 at 6:28:10 am
Last Edited By Jim Bond on Jan 10, 2015 at 6:29:54 am

Let's say I have two shapes. A circle and a line.

I want the line to be unseen until it rotates in front of the circle.

Every time I create a shape to mask the line, it matches the rotation of the line.

I'd like the mask to stand completely still, while the line rotates independently.

This takes about 1 second to do in photoshop...

How do I do this in AE?

Any help would be greatly appreciated.

Thanks.


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Tudor "Ted" Jelescu
Re: Masking question...
on Jan 10, 2015 at 5:20:01 pm

Not quite sure I understand what you're trying to do, but a mask only moves if you animate it.

Tudor "Ted" Jelescu
Senior VFX Artist


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Walter Soyka
Re: Masking question...
on Jan 10, 2015 at 6:33:35 pm

Don't use a mask for this; use a track matte [link].

Walter Soyka
Designer & Mad Scientist at Keen Live [link]
Motion Graphics, Widescreen Events, Presentation Design, and Consulting
@keenlive [twitter]   |   RenderBreak [blog]   |   Profile [LinkedIn]


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Jim Bond
Re: Masking question...
on Jan 10, 2015 at 8:42:56 pm

Ah ok. I was looking in the wrong place. Thanks.


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Adam Farron
Re: Masking question...
on Jan 10, 2015 at 11:52:37 pm

Try rotobrush. It works wonders on pretty much anything.


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