Unity Binary Asset Parser

This crate provides functionality to parse Unity binary file formats including:

• AssetBundle files (.bundle, .unity3d)
• Serialized Asset files (.assets)
• Resource files

Features

• AssetBundle parsing: Support for UnityFS format
• Compression support: LZ4, LZMA, and other compression formats
• TypeTree parsing: Dynamic type information for objects
• Object extraction: Extract Unity objects from binary data

Feature Flags

• texture: Texture processing (basic formats + PNG export)
• audio: Audio processing (all formats including Vorbis, MP3)
• mesh: Mesh processing (parsing + basic export)
• sprite: Sprite processing (requires texture support)
• texture-advanced: Advanced texture formats (DXT, ETC, ASTC) - requires texture2ddecoder
• mesh-export: Advanced mesh export (OBJ format)

Example

use unity_asset_binary::load_bundle_from_memory;
use std::fs;

// Load an AssetBundle file
let data = fs::read("example.bundle")?;
let bundle = load_bundle_from_memory(data)?;

// Access contained assets
for asset in &bundle.assets {
    println!("Asset with {} objects", asset.object_count());
    // Access objects in the asset
    for object in &asset.objects {
        println!("  Object: {} (type_id: {})", object.path_id, object.type_id);
    }
}
# Ok::<(), Box<dyn std::error::Error>>(())