I’m trying to make Niagara randomly pick a material from the array on a mesh material override. In doing so I came to realize I don’t understand the “User Param Binding” at all. The UE4 documentation is not any help. What is the User Param Binding supposed to do, and what kind of value does it tak…

You can create User.MaterialInteface variable to bind it: [image] And then set it in blueprint: [image]