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Move Object Without Moving Mask?

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C. Blake Davis
Move Object Without Moving Mask?
on Feb 16, 2017 at 5:26:49 pm

Hello! I have an image file I would like to move WITHOUT moving the mask it contains. Normally I would just use a trackmat, but this image file already has an alpha matte, so I have to use a mask on it to constrain its shape.

Any advice? Thanks so much!

Producer working in NorCal and Nashville


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Dave LaRonde
Re: Move Object Without Moving Mask?
on Feb 16, 2017 at 6:28:25 pm

Why don't you precompose? It ought to work.

Dave LaRonde
Promotion Producer
KGAN (CBS) & KFXA (Fox) Cedar Rapids, IA


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C. Blake Davis
Re: Move Object Without Moving Mask?
on Feb 17, 2017 at 11:25:31 pm

Thanks for the recommendations! Typically I would. I forgot to mention above the reason I'm doing it this way is I'm trying to streamline the template so that I can easily replace this one layer as I'll be making about 40 scenes from this one template. So easily replacing this file with other images is important

Producer working in NorCal and Nashville


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Richard Garabedain
Re: Move Object Without Moving Mask?
on Feb 16, 2017 at 9:12:12 pm

painful situations i know...the only way would be to animate the anchor point but thats only if it has no animation keyframes of anykind currently...which is unlikely


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Richard Herd
Re: Move Object Without Moving Mask?
on Feb 21, 2017 at 11:48:11 pm

The after effects render order is the following:

SOURCE
MASK
EFFECTS
TRANSFORMATIONS

(smet)

Imagine the problems if masks were not on the source. Yikes! Or effects ignored masks!!


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Darby Edelen
Re: Move Object Without Moving Mask?
on Feb 24, 2017 at 4:30:44 pm

However, if you continuously rasterize a later then the TRANSFORMATIONS stage occurs before the EFFECTS.

This can be useful for effects such as Set Matte where you don't want the matte to travel with the layer's transforms. Of course most footage items don't expose the continuously rasterize switch so this often requires precomposing the footage.

Darby Edelen


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Michael Szalapski
Re: Move Object Without Moving Mask?
on Feb 22, 2017 at 8:32:09 pm

Any chance you could use the Set Matte effect?

(I live just north of Nashville. Nice to see a fellow Tennessean!)

- The Great Szalam
(The 'Great' stands for 'Not So Great, in fact, Extremely Humble')

No trees were harmed in the creation of this message, but several thousand electrons were mildly inconvenienced.


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C. Blake Davis
Re: Move Object Without Moving Mask?
on Feb 24, 2017 at 3:56:52 pm
Last Edited By C. Blake Davis on Feb 24, 2017 at 5:06:36 pm

Unfortunately it doesn't work because the parent layer is a comp, and AE still hasn't corrected their set matte with comp issue.

p.s. I've sent you an invite on LinkedIn. I'd love to connect if you're in the area! I'm about to move into a new place in the Germantown area.


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