[ART] .DDS Files Not working?

[Mudbill]

Well, if there's some error, the log should say so. Post the contents of Documents\HPL2\MaterialEditor.log after running into the issue and shutting it down.

Make sure you deleted the previous mat file (if you opened it before from another format). It might be the compression also. Use DXT5 if you need trancparency, or DXT1 if not. These are the settings I normally use (from Photoshop):



Also just make sure you don't have a black alpha channel. That might make your texture fully invisible.