DOF is controlled by camera lens settings that allow for more realistic camera setups. Look at this for a good rundown on how it all works:
https://docs.unrealengine.com/en-US/Engine/Rendering/PostProcessEffects/DepthOfField/index.htm
DOF is controlled by camera lens settings that allow for more realistic camera setups. Look at this for a good rundown on how it all works:
https://docs.unrealengine.com/en-US/Engine/Rendering/PostProcessEffects/DepthOfField/index.htm