Crate unity_asset_binary 

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

This crate is intentionally parser-only. For decoding/export helpers (Texture/Audio/Sprite/Mesh), use the unity-asset-decode crate.

Example

use unity_asset_binary::bundle::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);
    }
}

Re-exports

pub use error::BinaryError;

pub use error::Result;

Modules

asset

Unity asset processing module

bundle

Unity AssetBundle processing module

compression

Compression support for Unity binary files

data_view

error

Error types for Unity binary parsing

file

Unified Unity file model (UnityPy-aligned).

formats

Layered “formats” namespace (UnityPy-aligned).

metadata

Unity asset metadata processing module

object

Unity object representation and helpers.

performance

Performance Optimization and Monitoring

reader

Binary data reader for Unity files

shared_bytes

typetree

Unity TypeTree processing module

unity_objects

Unity Core Object Types

unity_version

Unity Version Management System

webfile

Unity WebFile parsing