Lol, that’s pretty bad design then.
Not arguing here with you, but hover with your mouse pointer over corona sky or c4d sky… both are “objects” and nothing is real…
So, there is no way to mask out a sky object? Seems pretty basic and sky replacement is a daily thing in archviz/ photo.
I always used the prehistoric technique of an upscaled sphere object with tons of unnecessary polys and phong tag.
I’m looking for a better way.