I have a large number of Static Mesh Actors in the scene, I get them and classify them into arrays for storage. How do I operate on them at the same time through the blueprint? I’ve tried Foreachloop, but is there a smarter way, because there are a lot of StaticMeshActors.
If you really see no possiblity to do the action you need in anohter way you should consider creating a c++ function to do the heavy work. You could hope for the nativization function in the packaging settings of the project settings to make your problem not that relevant, but you can see in the video “Blueprint vs C++ Performance” by “alt alt” how much impact that can have.
If you are just going for a visual effect, you could try to recreate the behavior in a Material. Maybe also in combination with "instanced static meshes". But that could require a deep understanding of math and the render pipeline of unreal depending on your task.