i believe the first byte (your texUnk) in the header description is for the image type,
for example diffuse, normal, specular, etc.
it looks consistent with the images, especially in the larger archives.
you can use this info to append a letter to each image name when exported
to distinguish them since there are multiple images with same names.
Thank you, I think you are right!
After analysis, are the following types correct? Actually I don't know much about the type of texture.
0=diffuse no alpha
0x2=specular alpha(black color)
0x10=diffuse alpha(black color)
0x80=atlas or duffuse no alpha
0x90=atlas or duffuse alpha(black color)
When equal to 0x80 or 0x90, I think if there is another type of suffix file with the same name, it is a textures atlas, otherwise it is a diffuse map.
I hope this means that images like the one I presented will be presented and exported correctly. Also, since either of you seem to have the game, have you checked the other files for anything interesting or a solution?
I don't have a game, I only have a sample from you.