UT D3D Performance

The Unreal DirectX and Direct3D Downloads page has a dll file that you can use if upgrading to UT v413 caused some serious performance issues.

We continue testing new code for of UT's DirectX7 D3D rendering interface DLL. People experiencing problems in D3D mode may want to help test this. This file is the same DLL you get by installing our latest UT patch (413) If after upgrading you still experience performance or other problems, backup the d3ddrv.dll that's in your UT system folder and replace it with the latest beta d3d interface DLL. This includes a new variable 'UseLocalTextures' ( type 'preferences' at any UT console prompt, go to rendering -> Direct3D support ) to force textures to be uploaded into local video memory only. The switch is 'False' by default to enable UT to run on specific AGP cards that lack local texture memory. Setting it to 'True' may benefit performance and/or graphics quality on other hardware. Some users have reported they get optimal results using the previous revision 0.6 beta DLL. Feedback welcome at utbugs413@epicgames.com.