This information is in reference to the Graphics changes mentioned in the 3.3.0 Patch notes.

We have added a new experimental feature to the D3D graphics engine to improve texture management (particularly on Windows XP). This is currently disabled by default and can be changed by adding the following line to your Config.WTF file:

SET gxApi "d3d9ex"

If you own an ATI video card and have experienced random Error 134 crashes, especially flying out of Dalaran, this mode will help you. It may also help some of the more elusive Out of Memory crashes that can occur on other hardware.

Also, the configuration variable ‘textureCacheSize’ is no longer used with the new backend. To set the cache size for the new backend, adjust the ‘gxTextureCacheSize’ variable. For example, to allow 128MB of GPU memory to be used for textures, add the following line to your Config.WTF file:

SET gxTextureCacheSize "128"

If ‘gxTextureCacheSize’ is set to 0, the client will try to pick a reasonable default value for your settings.



Patch notes:

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Q u o t e:
Graphics

- A new feature has been added to the D3D graphics engine to improve texture management (particularly for Windows XP users). If you are experiencing random crashes related to file read errors or out of memory, this new backend may help. To enable the new backend, add the following line to your Config.WTF file: SET gxApi "d3d9ex".

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