-
Changing Values in a Precomp
I’m trying to do something that seems relatively simple, but it’s beyond my skills with expressions.
I have a layer in a pre-comp that I want to be able to scale (and set keyframes) from the master comp so that I can set the timing in the main comp (and possibly impact multiple precomps at the same time).
I won’t know the durations of the shots ahead of time, so being able to put the keyframes in the parent shot will save me a world of grief in these templates.
-
1 Reply
-
This was my setup. If you change anything(comp name, precomp name, effect name) you must also change it in the expression.
Main composition name = Main Comp
Pre-comp name(as layer, this means as seen in timeline, not project panel) = Shot 1
Add a 3D point effect to pre-comp.
I named it CTRL.
Now go inside the precomp and on the layer that you want the scale to be modified write this expression:
myComp = comp("Main Comp");
myLayer = myComp.layer("Shot 1");
myEffect = myLayer.effect("CTRL")("ADBE Point3D Control-0001");
myEffect.valueAtTime(sourceTime(time)+myLayer.inPoint);
Reply to this Discussion! Login or Sign Up