Is this possible

Not exactly, the method in post #71 is similar to what i use right now, when in the suit with head above the water surface i can see the underwater part without the effect, when under i can see the ship’s interior with the effect, is happening because i can see both underwater and above water when floating at the surface

I wanted to know if it would be possible to have the effect rendered at all time (or at least slightly above the surface to cover my helmet) but mask the effect from being rendered inside my ship, so that when floating at the surface i can see both the underwater part and the ship interior like they should be

@RyanB, i’m going to have to re-read that a couple of times, i have used masks in the past to mask out materials from being rendered in specific shapes and locations and was wondering if a similar approach could work, i’m not very good with maths so it might take me a while to understand what you’re trying to explain

Thanks