If I have a PIP clip and the clip behind it (the background) is bright. It makes the PIP too dark. Is there any way to isolate the PIP so it does not become too dark?
I'm not following. The image behind the PIP doesn't really have anything to do with the PIP luminance itself, unless you have the PIP's opacity reduced. It may well be that the luminance of the background causes you to PERCEIVE the PIP as being darker, but the two are unrelated in terms of brightness.