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Hexaae, posted Tue Sep 22, 2020 9:42 pm (58823)

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I've done a re-translation for Flashback (classic) GOG version, but found the Steam version is compressed in data.unity3d blob... I know how to unpack it with UABE or Unity Studio, but... how can I rebuild the compressed data.unity3d?
My goal would be to create a final diff patch for the Steam version too (GOG version instead is already uncompressed with accessible resources.assets etc. files), so I need a way to rebuild that in the original compressed format...

Hexaae, posted Fri Oct 09, 2020 10:41 pm (59174)

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Ooops, I missed it is already built-in in UABE (Unity Assets Bundle Extractor):
File menu > Open (also .unity3d files),
then choose Yes to decompress it on request,
...finally you can Import back a modified resources.assets file,
then you can Save an uncompressed .unity3d new file,
finally you can simply apply File > Compress to the new .unity3d file to rebuild the data.unity3d compressed as the game expected.