-
problem linking gaussian bluriness to other layer’s slider
Hi,
I am trying to link a layers gaussian blur bluriness to another layer’s slider control via scripting.
Here’s my code :var curLayer = curComp.selectedLayers[0];
var curName = curLayer.name;
var copyLayer = curLayer.duplicate();
var copyFX = copyLayer.property(“ADBE Effect Parade”);
var copyBlur = copyFX.addProperty(“ADBE Gaussian Blur”);
var copyBluriness = copyBlur.property(“ADBE Gaussian Blur-0001”);
…..other code…….
copyBluriness.expression = ‘thisComp.layer(“‘ + curName + ‘”).effect(“Blur”)(“Slider”)’;It returns an invalid object…
Can anyone tell me what I’m doing wrong ? Am I forgetting a “.value” somewhere ?Thanks
😉 -
6 Replies
-
It looks ok, unless the selectedLayers[0] does not have a Slider Control named “Blur”.
Xavier
-
In previous post i was only looking at the expression code, but.. just thinking now: when expressions break, there is no such message as “Object is invalid”, hence i suppose that you get the error inside your script, not later in after effects.
Therefore it might be coming from your “other code”.
And it be so if ‘other code’ messes up with the effects stacks in copyLayer (for instance, if other effects are added, then the copyBlur variable point to a property that is no longer valid, and you have to redefine it).Xavier
-
Hi Xavier,
Thanks for your quick replies.
I think you are right…
Immediatly after creating the Gaussian blur, I create a Bevel Alpha effect. If I don’t create it, my code works fine.If I understand what’s going on, my code is referencing the Gaussian blur effect by index ? And when I create the bevel, it’s index becomes [1] in the effects group ?
So, in order to keep both effects, I have to reference the blur effect by index once I have finished adding all effects to this layer ? Can I reference it by name ?
Thanks again !
😉 -
Name or index will work, take the one that is most suited to your needs.
It works this way:var myFx1 = myLayer.effect.addProperty(matchName1);
var idx1 = myFx1.name;
var idx1 = myFx1.propertyIndex;
var myFx2 = myLayer.effect.addProperty(matchName2);// at this stage, the variable myFx1 point to an invalid object
myLayer.effect.property(matchName1); // the first effect in effect stack that has the same matchName
myLayer.effect.property(name1); // the first effect in effect stack that has the same name
myLayer.effect.property(idx1); // should point to the same property as myFx1Xavier
-
I see…
Too bad you can’t reference it directly by name when you create it.Thanks again, this is pretty important to know if you don’t want to be staring at your invalid object for hours… ????
Cheers !
-
I messed up my previous post. “var idx1 = myFx1.name;” should actually be:
var name1 = myFx1.name;
Xavier
Reply to this Discussion! Login or Sign Up