TGA files

The WoW game engine can load -formatted graphics files directly instead of having to convert them to .blp files, so long as they follow a few rules:


 * Edge sizes must be a power of 2, but do not have to be square (256x256 is ok, 256x128 is ok, but 256x200 is not)
 * Images with transparency must be saved with 32 bits per pixel for the

See for more details