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Channel: Adobe Community : Popular Discussions - After Effects Expressions
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Expression request

Hi Guys, I tried to stay away from After Effects and concentrate on sound - but I have failed! I am hopelessly addicted to AE - there is no turning back! I have a question about expressions. I have...

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How to create a simple bobbing up and down motion expression?

Hi, I have a 3D object that I want to continuously bob up and down but I'm having trouble finding an expression to do this. I would use wiggle on the Z except wiggle creates random motion and I need...

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Auto Fade In/Out audio based on layer in/out points?

Is it possible to automatically fade a layer's audio in and out based on its in and out points?

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Multiple Expressions

Is there any way that I can patch the same expression in the same property layer multiple times? What if I would like my camera to execute the same expression at different points in the composition?

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Determining the apparent scale of a 3D layer

I was reading an entry on Wikipedia ( http://en.wikipedia.org/wiki/Image_resolution ) the section on "distinguishable squares" caught my eye. Is there some fancy expression math trick in determining if...

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Access property of a subcomp through expressions.

I got a main composition. It got a subcomposition and a null-object(with a control checkbox).How can I access a layers opacity in the subcomposition throught an expression in the main composition?The...

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Change opacity precomp layer expression

Hi, I want to control my precomp layers opacity within my maincomp by changing the layername. For example: If my layer name(in the maincomp) is "A" only the layer called "A" in the precomp will show. I...

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What's new with CC expressions?

Just curious if there's any new controls exposed to expressions in AE CC? Has there been any change in expression performance?

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Expressions and sliders

Hi all Having trouble trying to stop my wiggle expression so I thought I would use a slider to control it. The wiggle is applied to position but I haven't actually given it any key frames. Basically my...

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Expression to move a copied layer in the oposite direction

Hi guys, I am embarresed to ask this one, but I am hoping that it is as simple as it sounds, and its not too much of a waste of time to ask!  I have footage of one of our ships flying against a blue...

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I want to rotate objects around a Null, but have them stay upright...

I have 3 object parented to a null, and I want to rotate the null to have the objects in orbit around it, but I want the objects to stay upright... would this be done with an expression?

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Linking a 2D layer to a 3D layer

Ok, i've come to my limitation of expression skills. I've setuped a 3D composition, with various elements at various depths. One of this element is a Sun. I setuped a camera to do a pan inside my 3D...

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Expressions

This is probably an incredibly silly question but I can't seem to find the right thing to search for in google or in my books to fix it!! I'm trying to add two expressions to the same layer on the same...

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How can I use layer axis versus world axis to animate?

Hi all, I'm open to alternate ways to approach this. I'm trying to create a sphere using several images. Say, 200 images, arranged in 3d space so they face outwards and are all forming one large...

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Why aren't counter expressions working??

I've tried several Counter expressions, but none of them seem to work. I don't know if it's because they weredesigned for a different version or what,but every single one of them has onething or...

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Accurate Timer For Sports

Hi all. I'm trying to make an expression you apply to a text layer to time sports videos accurately. So far, I have the minutes and seconds figured out, but can't seem to get the milliseconds to work....

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Tracking puppet pin tool with null object track(HELP)

I'm trying to track my puppet pin tool to a null object. I am using the code n=thisComp.layer("NullObject_Name"); nullpos=n.toComp(anchorPoint); fromComp(nullpos); But ever time I assign the name of...

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How to delay an animation

Sorry for my bad english: i'll try to be clear.Once a layer has some animation (position, scale etc),how can i link another layer to this first one (or the animated property of the first one to the...

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How to rotate a point around another one

I need to rotate a point reference in a effectaround another point (that is another effect point reference)keep the second one fixed and make a perfect cicle path. In other words:i have an effect...

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Varying Speed Of Fractal Noise Ocean Waves With Expressions

Hi, Possible Noob question: I've been following:  http://allbetsareoff.com/2009/06/ocean-water-effect/ The video results are here: http://vimeo.com/5384704 He uses the Fractal Noise plug-in to make the...

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