Scripting: Add loopOut() Expression to a selectedLayer with a script?

[Vishesh Arora]

Brandon

You will get a better answer at Adobe After Effects Expressions.

Vishesh Arora
3D and Motion Graphics Artist
Films Rajendra

Blog:
https://digieffects.wordpress.com

2011 3D Demo Reel:
https://www.youtube.com/watch?v=lHPgIJU_BR8

[Xavier Gomez]

Assuming that :
1- your script has already identified the layer (let’s call it theLayer),
2- your script has a string variable (called say expr) that contains the expression text,
you can go on like this:

var prop = theLayer.transform.position;
prop.expression = expr;
prop.expressionEnabled = true;

if you want need your script to read the property’s values at a given time t, it is like this:

– for pre-expression value: prop.valueAtTime(t, true)
– for post-expression value : prop.valueAtTime(t, false)

[Brandon Smith]

Thanks for the response Xavier

Here is my code that I am currently working with, but it keeps crapping out when it gets to the actual expression. Any ideas?


var myComp = app.project.activeItem;
var myLayer = myComp.selectedLayers[0];
var prop = myLayer.transform.position;
prop.expression = "loopOut("cycle")";
prop.expressionEnabled = true;


Thanks!