Unreal Engine – Screen Space Fog Scattering v1.0.1 (5.1)

Post process shader that simulates the light scattering inside the fog medium.

Features:

Applies automatically on any scene or blueprint that's using "Exponential Height Fog"
The intensity of the effect is also dependent on "Exponential Height Fog" settings
Support for Volumetric Fog
No additional setup required (besides installing the plugin)
Compatible with all default post process effects
Fixed and small performance cost
Lightweight