Hey! I've been looking into the files for Apple's SceneKit used in the Animoji app, specifically the .scnz files. In the main.scnz file, at offset 1DC50, there seem to be repeating structures that might indicate 3D model data. However, I haven't had any success extracting anything meaningful with tools like Hex2Obj. The file also appears to have some kind of compression applied. If anyone has experience with these files or knows of tools or methods that could help, I'd greatly appreciate it!
SCNZ files can be found in extracted IPSW firmware under the following directory:
System\Library\PrivateFrameworks\AvatarKit.framework\memoji\assets\head\head.aa
SCNZ.zip