Underwater fog, half in and half out

[Komahz]

@Chooka;180301

Tesla Dev did it way: https://www.youtube.com/watch?v=LtyXjSb1P-4

He does’t want to know how to add a post process volume, infact he wrote:

@renderboy;180056

I also tried using the postvolume but I have not solved the problem, it shows the effect on the entire screen when on and not a portion of the screen while coming in it.

So he want not a gradually blendable post process effect, but a “masked” post process effect