The fastest solution is to force the game to skip the unstable DirectX 11 features and run on DirectX 10/9. The game looks 99% the same, but runs infinitely smoother.
FIXED: “Rendering Thread Exception” Fatal Error – Batman: Arkham City (PC) Rendering Thread Exception Fatal Error Batman Arkham City
Rendering Thread Exception: Fatal Error Batman: Arkham City typically a graphics engine crash linked to DirectX 11 features, corrupted game files, or outdated software dependencies Recommended Fixes Disable DirectX 11 Features : This is the most common cause. Open the game launcher and select Configure PC Options Locate the DirectX 11 settings. DirectX 11 Features DirectX 11 Tessellation Verify Integrity of Game Files : Corrupted files often trigger this engine error. : Right-click the game in your library > Properties Installed Files The fastest solution is to force the game
: Right-click the game in your library > Properties > Installed Files > Verify integrity of game files . Open the game launcher and select Configure PC