TGA conversion bug

[z929669]

HighResTexturePack02\textures\dlc01\architecture\snowelfruins\seruinsmarble01_n.dds

... is DXT5, but it is lacking information that should be present (see seruinsmarble01_n.tga, which is adjacent). I have found that the only way to get a proper result is to use the source TGA to manually compress to DXT using the preview tab in DDSopt. It turns out that DDSopt will not process this texture correctly (it seems to only rename the file to use the DDS association without changing the actual format). Perhaps there is a bug with automated handling of TGA, but even with INI edits, the automation will not convert the file properly. You need to convert as a single case in the Preview tab.

These INI edits do not work as expected:
dlc01\architecture\snowelfruins\seruinsmarble01_n.tga=DXT
dlc01\architecture\snowelfruins\seruinsmarble01_n.dds=SKP

See comparison of manually-produced DXT5 (from TGA source) versus the one included in the official game (beside the TGA source):

https://dl.dropboxusercontent.com/u/45644759/STEP/COMPARISONs/seruins.JPG