CVar gxApi

Switches between 3d engines. Accepts D3D11_LEGACY, D3D11, D3D12, gll or opengl as parameters.

• auto : Automatically selects a graphics API.

• D3D11_LEGACY : Old single-threaded rendering backend using DirectX 11, similar to the functionality of DirectX 11 in 8.0.1. Enables World of Warcraft to use Shader Model 4 and 5.
• D3D11 : New multi-threaded rendering backend using DirectX 11.
• D3D12 : Multi-threaded rendering backend using DirectX 12 for hardware, drivers, and operating systems that support it. There are some performance improvements in 8.1.5, but it is mainly the same as the 8.1.0 release.

• metal : Apple's current API for accelerated graphics on macOS

To change the setting, exit WoW, open the Config.wtf file, and add the following line: SET gxApi setting Changing the setting with a graphics engine restart in-game crashes the client.