BepInExFasterLoadAssetBundles

Makes startup loading time faster by 10-20%. (Depends on installed mods)

Uploaded with permission from DiFFoZ please do not report bugs to them.

What it does

Before loading asset bundles, they will be decompressed into Risk of Rain 2/cache/AssetBundles. Decompressing can help with slow loading of asset bundles or high RAM usage.

Cached mods will persist between mod manager profiles and take up on average 1 GB per 100 mods

Incompatibilities

Currently no incompatibilities are known.

Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

[1.0.1] 2026-01-07

Changed

• Logs are now disabled by default

[1.0.0] 2025-03-22

Added

• Patch for loading bundle via memory.

[0.6.5] 2024-10-26

Changed

• LZ4 compression is now used instead of uncompressed.

Fixed

• Potential fix for Wine that it reports wrong free disk space.

[0.6.4] 2024-06-18

Changed

• Internal size of stream buffer to speed up hashing.

Fixed

• Bundle with enabled flag ShouldNotDecompress is not updating last access time.
• Deletion of temp assetbundles called twice.

[0.6.3] 2024-06-18

Added

• Deleting of unknown cached assetbundles on start up (unknown means that bundle doesn't have a metadata info).

[0.6.2] 2024-06-17

Fixed

• Finding assetbundle metadata by hash failing.

[0.6.1] 2024-06-16

Changed

• Algorithm of hashing assetbundle from SHA1 to Hash128 (spookyhash).

[0.6.0] 2024-06-16

Added

• Big size assetbundles (larger than 300MB) are recompressed with LZ4 instead of uncompressed. This should fix crashes with very unoptimized mod assets.
• Deleting temp files on game start up.
• Deleting assetbundle metadata if uncompressed bundle was deleted.
• Pre-check to not recompress, if original assetbundle is already uncompressed or compressed with LZ4.

Removed

• Deleting of the old cache that was introduced in v0.4.0.

[0.5.0] 2024-04-24

Changed

• All bundle loading by stream are now recompressed.

Fixed

• Array leaking from the pool.

[0.4.0] 2024-04-04

Added

• Check of drive space before trying to decompress.

Changed

• Moved cache folder to the game installation.
  • The old cache folder will be deleted.
• Switching to main thread when decompress the bundle.
• Loading of uncompressed bundle to make them load faster.

Fixed

• Exception that happens if mod trying to load non exists bundle.

[0.3.1] 2024-03-28

Fixed

• Exception that prevents to decompress bundle.

[0.3.0] 2024-03-28

Changed

• Cache folder is now global (%userprofile%\AppData\LocalLow\<companyname>\<productname>).

[0.2.0] 2024-03-28

Changed

• Decompression is now happens in background.
• Decompression thread priority is set to Normal instead of High.
• AssetBundle loaded via FileStream will be now cached.

[0.1.0] 2024-03-25

Added

• Debug log when decompressed assetbundle is loaded instead.
• LastAccessTime to the metadata.json file.
• Cached assetbundle will be deleted after 3 days of inactive usage.

Changed

• Lock the metadata file when updating it.

Fixed

• No logs are printed.

[0.0.2] 2024-03-22

Changed

• Catch any exception when trying to load decompressed assetbundle.
• Move logs to ManualLogSource instead of Console.

[0.0.1] 2024-03-22

Added

• Project files