One of the most common uses of unreal engine for film is to use it to render in huge screens around the actors (instead of chroma), so you can record with the r

One of the most common uses of unreal engine for film is to use it to render in huge screens around the actors (instead of chroma), so you can record with the right light hitting the actors, or maybe even with the background already there. I am curious how expensive these screens are, and the computers to drive it, but I imagine they are not cheap.