• Adobe After Effects Expressions

  Quickly modifying effects settings on many tracks

  Posted by Thomas Hannen on May 18, 2012 at 6:06 am

  Hi,

  If I’ve used an effect on many text layers (e.g. “Roughen Edges”), and I suddenly realise that I need to reduce the Border setting on all of the tracks, is there a script that I could write to loop through every track in my project, see if it contains the plugin, and if it does, adjust the “Border” setting from 1.6 to 0.6?

  Thanks in advance!

  Dan Ebberts replied 14 years ago 2 Members · 3 Replies
• 3 Replies

• 

  Dan Ebberts

  May 18, 2012 at 6:38 am

  Try this:

  
{
function main(){
var myComp = app.project.activeItem;
if (myComp == null || !(myComp instanceof CompItem)){
alert ("No comp selected.");
return;
}
for (var i = 1; i <= myComp.numLayers; i++){
var myEffect = myComp.layer(i).property("Effects");
for (var j = 1; j <= myEffect.numProperties; j++){
if (myEffect.property(j).name == "Roughen Edges"){
myEffect.property(j).property("Border").setValue(0.6);
}
}

  }

  }
main()
}


  Dan
• 

  Thomas Hannen

  May 18, 2012 at 6:48 am

  Thanks Dan,
  Would this work down through nested comps recursively?
• 

  Dan Ebberts

  May 18, 2012 at 7:02 am

  Nope, but this should:

  
{
function processComp(theComp){
for (var i = 1; i <= theComp.numLayers; i++){
var myEffect = theComp.layer(i).property("Effects");
for (var j = 1; j <= myEffect.numProperties; j++){
if (myEffect.property(j).name == "Roughen Edges"){
myEffect.property(j).property("Border").setValue(0.6);
}
}
if ((theComp.layer(i) instanceof AVLayer) && (theComp.layer(i).source instanceof CompItem))
processComp(theComp.layer(i).source);
}
}
function main(){
var myComp = app.project.activeItem;
if (myComp == null || !(myComp instanceof CompItem)){
alert ("No comp selected.");
return;
}

  processComp(myComp);

  }
main()
}


  Dan

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