Not work on Twilight Princess font

[CaiMiao]

on exporting the program report as R8_UNORM type but it have transparency indeed, results imports no alpha channel and broken result

[aboood40091]

... send it... ?

[CaiMiao]

sure.
reishotai_24_22.bfn.zip

[aboood40091]

Ah, I see the problem. I used to hardcode the component selectors back in the day for every format into specific values for each format (R, 1, 1, 1 for R8) instead of handling the true values.

In all honesty, the tool itself is pretty old and sometimes does some wrong assumptions (just like this one). I will hopefully make a rewrite soon enough, but in the meantime, you can use Switch Toolbox to extract the images in this file with the correct colors.

[CaiMiao]

I see.
Can you implement a quick fix for this? (export / import w/ alpha channel support)
I need to build another font with different base bfn. It have around 100 sheets and different image size so I have to batch convert them.

[aboood40091]

I actually went ahead and started the rewrite of the tool.
You can find the progress here.

As of now, it can batch extract textures (including mipmaps) in GTX files to png files with correct color and all.
For example, here are the textures extracted from the GTX file you sent:
reishotai_24_22.bfn.zip

I am still working on the new DDS writer.