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Uncompress/Convert .ETC1 files (Marvel Strike Force)
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(05-19-2022, 01:16 PM)JayG64 Wrote: Hey folks, 
I'm trying to uncompress/convert .etc1 files without any luck. 
The game I play (Marvel Strike Force) recently started to put .etc1 files in their assets cache folder, before they were only .png files. So I suppose those are compressed png? 
I tried to uncompress or converting them back to .png with different tools but that didn't get me anywhere...
So if anyone can point me in the right direction it would be greatly appreciated. 

The game is made with Unity for iOS/Android if that matters. Thank you!

Samples: 
https://drive.google.com/file/d/11yVuE4q...sp=sharing
https://drive.google.com/file/d/1HEzcYpR...sp=sharing

Etc1 is a texture compression format... I looked at the files, and it seems like they contain raw data (no info about the format/size, just the compressed image). So I tried using Kuriimu2 to view the data (always worth a try) and it turns out that these files use Etc2RGB compression (not Etc1!). I had to fiddle with the sizing a bit to get the example shown below. Unless you can find some sort of info data, which might look like many smaller files that correspond with the textures, it would be too difficult to export all the files manually.

Hope this helps!

Edit: Putting this here so I don't lose it. https://github.com/jnsnow/libetc2
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Thanked by: JayG64


Messages In This Thread
RE: Uncompress/Convert .ETC1 files (Marvel Strike Force) - by CreativelyNamedUser - 05-20-2022, 08:55 AM

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