UE4 Project: Innerfearum - Fog Of War
Early version of a fog of war system similar to Starcraft2 or League of Legends. Calculates a height map at the start of the level for actor vision. Each actor has UVisionComponent with parameters like Radius, VisionType, etc. Each team has it's own vision. Vision is calculated and stored in internal texture buffers each frame. A final post process material applies the fog to the world.
http://fear.nervenet.net