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After Effects mask not revealing the layer below?

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Jordan DaviesAfter Effects mask not revealing the layer below?
by on Jul 26, 2016 at 8:44:24 am

I'm working my way through a project and leave it for the night. When I come back the mask I was using as a cut is no longer working. The layer below should be being revealed but it just isn't anymore? Have I hit something by mistake? See image:




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Dave LaRondeRe: After Effects mask not revealing the layer below?
by on Jul 26, 2016 at 5:12:46 pm

It appears that you may have inadvertently set the layer above the masked layer as a track matte. Which would mess things up.

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


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Walter SoykaRe: After Effects mask not revealing the layer below?
by on Jul 26, 2016 at 5:59:12 pm

I don't see any track mattes, but have you perhaps applied an effect to that layer that is ignoring the masks?

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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Kalle KannistoRe: After Effects mask not revealing the layer below?
by on Jul 26, 2016 at 6:05:55 pm

As far as I can tell, the selected mask covers the entire layer and is set to add, which means that this mask is not set to reveal or cut anything out.


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Jordan DaviesRe: After Effects mask not revealing the layer below?
by on Jul 26, 2016 at 6:48:39 pm

The white space behind the car should be revealing the layer below, you can see the time indicator showing its over the 2 layers. No mattes or anything applied. It was fine yesterday and opened it up today and it's lik this. Strange!


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Daniel WaldronRe: After Effects mask not revealing the layer below?
by on Jul 26, 2016 at 7:22:37 pm

I see the mask on your layer, but I don't see outline of the mask in your composition window. Are you sure it's path didn't get changed to something larger than your footage?


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Jordan DaviesRe: After Effects mask not revealing the layer below?
by on Jul 26, 2016 at 7:32:49 pm

Yeh I just hadn't the mask selected when I took the screenshot. You can see the shape of the mask in the white space to the right of the frame.


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Daniel WaldronRe: After Effects mask not revealing the layer below?
by on Jul 26, 2016 at 9:07:08 pm

Ah I see. What happens if you solo the bottom layer?


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