I have no idea whether or not this is the correct place to post this, but I've been trying to follow a simple picture tutorial for the Sims 3. Everything was going swimmingly until I got to this part:
Merge all layers and save as an interpolated alpha (DXT5)
I use Gimp and after searching Gimp docs, Google and these forums for ages am still no further forward. Could someone please clarify exactly what the above means and how to save the file in that particular format?
Thanks in advance.
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