Help with invalid expression
In the book by Marcus Geduld "AfterEffectsExpressions" there is an example (p.145) that reads: effect("4-Color Gradient").param(propertyIndex - 2).valueAtTime(time - .5) This is an expression applied...
View ArticleExpression to limit tracking data
Hello, Is there an expression to limit the scale of tracking data. In other words, I would like to take tracking data and reduce the size, so if I track my hand and it moves 10 inches up or down, I...
View ArticleTracking 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...
View ArticleDan's Audio Beat Counter
I've been trying to figure out how to modify Dan Ebbert's AudioBeat Counter so that it starts counting beats based on the layer's in point rather than on the start time of the comp. IOW, I'm trying to...
View ArticleIntegral Calculus in AE
I'm wondering if there is a way to add the values of a property for every frame before the current time indicator? the relevance to calculus: I'm wondering if there is a procedural way in after effects...
View ArticleHow to get the footage's current frame number in expression?
There are 2 layers.One is text layer,one is sequence layer.Footage has begun from the 20th frame.Therefore, the number of composition's current frame number and footage's frame number has shifted. I...
View ArticleTurning on/off layers depending on what's in comp window
Hi- unusual question here:Does anyone know if this is possible? I have a composition made of 200 layers. A camera is panning over it, but not all layers are always visible in its "viewfinder" at any...
View ArticleExpressions Optimization
I use a lot of expressions - to a point where I sometimes get stack overrun errors in renders, and other glitches. I am wondering if anyone has advice for optimizing expressions and reducing the amount...
View ArticleAccess Properties of a Layer Inside a Precomp
First time visiting these forums but they look like a super helpful place so any response is awesome. I'm trying to save myself some headache by creating one animation ("CircleIcon") and then using it...
View Articlestroke width with expression
Hi, iam trying to set stroke width based on shape scale, (to maintain fixed stroke size) so ive used "(1/transform.scale[0])*500;" for stroke width expression, but this only works for either stroke...
View ArticleOpacity change every 5th frame
I want to create a jiggle animation. I have 3 layers that I want to swap between every 5 frames using an expression. How would I go about setting this up so it would cycle in order every 5th frame?
View ArticleDepth of Field expression
Hi i've got a comp with 70 3d layers.They are all arranged in a grid in the x+z axes .Distance between each layer is 3600Px.The camera is parented to a null called"Cam_control".Basically,the camera...
View ArticleSmoothing values of another layer
I have Layer A which has a standard wiggle on it. I pickwhip the position of Layer B to copy Layer A's. But now I want Layer B's motion to be a damped — as if Layer B is copying Layer A's movement, but...
View ArticleInterpolating between Shape/Mask Paths
Hi, At 1:48 in this video, http://vimeo.com/36068222, this animator has the character's face moving horizontally by animating a mask. Looks pretty easy to do. What I'm wondering, is whether it's...
View Articlemask follows track point
I am trying to have an elliptical mask path follow a point that was motion tracked. how can i attach the center point of that mask (not the layer) to follow the tracked point? I've tried Nulls but...
View Article3D WARP/3DBEND: geometry expression no show?
"3D warp" as seen on tv.adobe "What's New", does not seem to be available on my version of CS6 AE (from disk). I'm not getting the geometry option even though,I have the 3D box checked and it is a...
View ArticleCalling an expression that's stored in one place (like a link, or an "include")
I would like to make an expression (for use on various layers throughout multiple comps) that triggers a main expression that's stored in one place.. (maybe this would be an expression on a layer on...
View Articleif else i dont get it
Hi and hello.Here is my tricky problem. I have 5 boxes red_1, green_2, blue_3, black_4 and yellow_5.All boxes lined up, when i move blue_3 20 pixels to the y position, green_2 and black_4 should move...
View ArticleFocus distance speed to brightness filter expression
Hi- I'd like to create an expression that links the speed at which a camera's focus distance changes to a brightness filter.So, for example, if the focus distance changes abruptly and quickly, I want...
View ArticleInverse Opacity
I have two layers. I want one to be on while the other is off. Neither one can be visible at the same time. But one of them always has to be visible. I came up with a pretty simple expression to make...
View Article
