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Animate a layer behind a mask?
Hi
I don’t know why I’m having trouble with this but it’s driving me crazy.
I just want to animate a layer bahind a mask so that the layer moves but the mask stays put. So the mask is like a window through to the layer and the layer moves inside it.
I’m using the pan behind tool to move the layer which is fine but as soon as I try and animate the position over time with a couple of keyframes the mask moves as well.
Any ideas – this should be really easy!
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7 Replies
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OK I figured it out just after I posted.
It looks like you set the mask path keyframes at the same time as the position keyframes and then they kind of cancel each other out!
Still a little obscure for such an obvious thing to want to do…
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You can also mask a separate layer and use that as a track matte for the animated layer below.
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Thanks Steve
So mask a solid layer and have it above the animated layer?
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Yep. Set the upper to be the track matte of the lower. Check the help for that.
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Thanks Steve
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Old thread, but you can also pre-compose your layer, keeping the mask on the composition, and then animate your layer inside the new composition. Hope that makes sense.
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Thanks, nice to see the old threads still get read.
More than one way to ‘skin a cat’ in AFX for sure.
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