What does the graphical option “Post-Processing” do?
Similar to HDR (High Dynamic Range-rendering), Post-Processing allows for a new lighting method to be used in the game. Basically, it allows bright things to be really bright, dark things to be really dark, and allows the user to see the detail in both dark/bright lighting. So if you’re using Post-Processing, the game will look better but take quite a performance hit. So if you’re using a lower-end system, it is recommended you turn it off to improve your framerate.
