Select the correct rendering API (usually or Vulkan ).

Click and browse to the .exe file of the game you want to mod (e.g., GTA5.exe or SkyrimSE.exe ).

: If the depth buffer is not working (e.g., the DisplayDepth shader shows a solid black or white screen), RTGI cannot calculate lighting. Check if your game has an internal "Anti-Aliasing" setting (like MSAA) that needs to be disabled to allow ReShade to access depth data.