• Download this file - http://www.mediafire.com/file/l0bjo6bu1ua7a0e/RealisticLightingOverhaul.zip

• Extract to your Dishonored 2 directory
C:\Program Files (x86)\Steam\steamapps\common\Dishonored2

• Shift + F1 to Activate/Deactivate the effect.
• Shift + F2 to Open Reshade Menu.
• Enjoy!