I'm want to use the PVRTexTool CLI (ver. 3.11, SDK Build: 2.06.26.0619) to compress a bunch of PNGs to the ETC1 format and save the compressed image as a .ktx file. The command I used is as follows:
PVRTexTool.exe -fETC -iC:Test.png -oC:Test.ktx -m -yflip1... and the output is this:
C:Test.pvr written.The compressed file is saved but in the wrong format (the saved file always seems to have the PVR format).
Executing "PVRTexTool.exe -help" says: "-o Output filename. Extension will depend on the mode chosen by options -p, -dds, -h etc." and the manual doesn't have any additional relevant information either.
Is there anyway to override this behaviour and have the tool put the compressed texture in a file format of my choice (KTX in this case)?
Note: I'm able to save to KTX format via the GUI version of the tool (File-> Save As.. and select "Khronos texture files (*.ktx)" in the "Save as Type" dropdown) and open this file via another program that supports the KTX format.
Edit: Tried this with ver. 3.30 SDK Build 2.10@839873 , behaviour is the same (CLI can't export to KTX where as the GUI can).