This might be better here..... Concerning the texture files in Empires

The diffuse files are DXT 1 (alpha channel) and the gloss and the normal are DXT 5.

I know that the DXT 5 format is good for the Normal and the gloss because the alpha channel stores more information so the accuracy of the compression is greater however for the .diffuse file if you use DXT5 your doubling the size of the file and I think getting little in return.

Looking at this more closely the best quality when saving my psd files is ....

8.8.8.8 ARGB 32 bpp | unsigned

but that increases the .diffuse file to about 5mb and I am not sure what if any return you get from this in the game.

I can say that the resulting .diffuse file is of a much higher quality but not sure if this translates into anything when running the game.

Any experts know anything about this .