SOA game assets [SLZ]

Extraction and unpacking of game archives and compression, encryption, obfuscation, decoding of unknown files
Rem
Posts: 9
Joined: Sun Jan 14, 2018 10:15 pm

SOA game assets [SLZ]

Post by Rem »

Hello there,

I'm trying to figure out how to read the format used for Star Ocean Anamnesis assets. I used the BMS script available on aluigi's website but it doesn't seem to work for every ADLD encoded file. I believe the most recent don't work with the current script.

For reference, it's referred as type 7 on the error message. I would be extremely thankful if I could get some help on how to support the new encoding.

A small sample is included in this post.

PS: In addition to that, the file included after decoding should be an ETC2 RGBA encoded image, but I've yet to properly render the image without a huge quality drop. (the ETC2 compression used might be a variant)
aluigi
Site Admin
Posts: 12984
Joined: Wed Jul 30, 2014 9:32 pm

Re: SOA game assets

Post by aluigi »

The slz.bms script is correct because the SLZ type 7 has never been documented.

In sample2 the decryption fails because the key is guessed and not calculated, therefore exists a very limited amount of slz files on which it may not work probably because it's not compressed.

Long story short: no solution on both.