I want to know if the checkbox below is unchecked for ignoring this parameter.
Is it possible?
I’m not sure if this is the “correct” way to do this, but you could try using a Blueprint Implementable Event in the actor using the material to see if the box is unchecked or not and return a bool.
I know there is a way to get a BIE to return a value, but I don’t remember the exact syntax. Also, it will show up as an overridable function instead of an event in Blueprint at that point.
Check out this method - it’s in UMaterialInterface so can be called from Materials and Instances - if you have bOverwrittenOnly set to true, it will return false if it hasn’t had that tickbox ticked.