[QUESTION] Backporting Cata big alpha adts to old format

[Morfium]

Hi,

I'm currently trying to get cata adts integrated into my old 3.3.5.
My goal is to port maps like Gilneas/Uldum to the corresponing areas they would belong. I don't want to replace the whole world with cataclyms adts and I think noggit can not edit big alpha adts anyway.

I had success getting the adts back to the old format with saving them in noggit. Not sure here, but I think noggit just falgs it as old alpha when it saves. The problem is, that this way seems to corrupt the alphamaps.

Maybe a compression problem? The maps are mostly fine, they just have some squares that are ... weird.
What I tred to accomplish was to export the alphas from cata and shrink them myself in e.g. gimp, then reimport them. But FuTa doesn't seem to be able to export them from the cata maps (I use those Anthony converted, thanks a bunch btw!) It does however export them from the maps saved in Noggit. But they are already corrupted.

So the question I got now is:
Is there a way/tool to get the cata alphamaps from the adts or maybe a neater way to shrink alphamaps besides saving in noggit?
Or maybe someone has a way better idea and understanding of this than me and wants to share her/his wisdom with me. Any help is appreaciated.

[Gurluas]

To my knowledge only one person has successfully converted Big Alpha back to the old format, and that person is Anthony.

[Morfium]

Thanks for the info. I was using the adts converted by him.
Sadly I had very mixed results while editing those adt files in noggit.
In the end I layed my work on the adts down until I have more time at my hands for further study.