Automation Blocks - Check for effect

Question

I'm looking to see if a layer has an effect, and if not apply it.

How to do check if a layer in a comp has a specific effect applied i.e. "camera lens blur", and if it's not there, apply it with specific values?

Alternately, if the effect is applied, change the value to a desired value? (I think, I can figure this part out once the first part is answered, but this is where I'm headed)

As always, thanks for your input.

Mathias Moehl · Accepted Answer

To check if a clip has a particular effect applied to it, you could try to get a param of that clip and check if the result is null (make sure to set the option to "return no value" if clip does not have this param).

Here is a quick test I did with testing if the first clip in V1 contains a Gaussian Blur:

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