ModelEngine Client Optimization

This mod optimizes the bandwidth and packets that client recieves by a custom payload and more!

1.1K Downloads

fabricoptimization

About this Mod

MEG Client Mod

A client-side Minecraft mod that optimizes Model Engine animation packets by replacing per-entity metadata updates with a single bulk payload using half-precision encoding, significantly reducing bandwidth usage for complex models.

Supported Platforms

Fabric
Forge
NeoForge

Minecraft: 1.19.4 - 1.21.x

How It Works

When installed, the mod registers the modelengine:bulk_data plugin channel. The Model Engine server plugin detects this and sends optimized bulk animation packets instead of individual entity data updates. Transformation data (position, rotation, scale) is encoded as half-precision floats, cutting payload size roughly in half compared to vanilla packets.

Players without the mod receive standard packets as usual, no compatibility issues.

Installation

Drop the mod JAR into your mods/ (Fabric/NeoForge) or mods/ (Forge) folder. No configuration needed. The server must be running Model Engine 4.

Important Notice

The custom payload protocol (modelengine:bulk_data) is designed exclusively for use with Model Engine. Third-party model plugins that send packets over this channel without proper implementation may cause visual glitches, desyncs, or client crashes. If you experience issues while using a non-Model Engine plugin, disable this mod and report the problem to that plugin's author, not here.

License

Available Versions

meg-client-optimization-1.0release

MC 1.19.4, 1.20, 1.20.1, 1.20.2, 1.20.3, 1.20.4, 1.20.5, 1.20.6, 1.21, 1.21.1, 1.21.2, 1.21.3, 1.21.4, 1.21.5, 1.21.6, 1.21.7, 1.21.8, 1.21.9, 1.21.10, 1.21.11, 26.1fabric

March 31, 2026

How to Install ModelEngine Client Optimization on Your Server

Order Server

Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).

Set fabric Loader

In the panel under "Egg", select the fabric loader and matching Minecraft version (26.1).

Install Mod

Open the mod browser in the dashboard and search for "ModelEngine Client Optimization". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.

Compatibility

Mod Loaders

fabric

Minecraft Versions

26.1, 1.21.11, 1.21.10 (+18 more)

Server-side

✗ Unsupported

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

ModelEngine Client Optimization server crashes on startup – what to do?

Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (26.1). You can switch loaders with one click in the panel.

Is ModelEngine Client Optimization compatible with fabric?

ModelEngine Client Optimization officially supports fabric for Minecraft 26.1, 1.21.11, 1.21.10. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with ModelEngine Client Optimization – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if ModelEngine Client Optimization consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.