Is there any way I can do this effect in UE4?

[ivan316ivan]

Is there any way I can do this effect in UE4?
I want the underwater fog effect to be seen at same time with the upper part (it also has fog in my game, but not as dense fog as underwater)
This screenshot is from The Forest game ([video link][2])
In my game when the camera is underwater, underwater mode is on. When it is not, it is normal mode (Normal fog).
The problem happens when the camera is in the middle, when the player can see over and below water and I can only apply the effects of one side.

[Tobias_Tobasco]

Maybe add a custom post process material, with a mask applied to it. The mask fades in, from the bottom via a float parameter you can set by code or blueprint.

[S-ed]

Forum topic on that matter:

Is this possible