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JMX Mod für Minecraft 1.20

JSON Model Extensions für Fabric

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7 Aufrufe
Aktualisiert
Aktualisiert 18.10.2026

JSON Model Extensions

JMX adds support for FREX Rendering API features to Minecraft JSON model loading. It can also be configured to load all JSON models as FREX meshes, which may offer a modest reduction in memory usage due to more efficient data structures.

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Current Features

  • Backwards compatibility with Vanilla model JSONs
  • Alternate texture definitions for each face
  • Up to two sprite layers per face
  • Material specification to control lighting, render layer
  • Material inheritance, similar to other JSON model inheritance
  • Support for separate definition for FREX renderers (useful for shaders)
  • FREX definitions can reference shaders loaded via FREX JSON material loader

See the JMX Wiki for more information.

Installation von JMX

With Millida Launcher

  1. Install Millida Launcher

    The launcher is free: download it at millida.net/launcher and sign in with any nickname.

  2. Click “Install” on this page

    The launcher opens and installs the mod for Minecraft 1.17–1.20 on Fabric or Quilt automatically.

  3. Launch the game

    A profile with it appears in the launcher: click “Play”.

Manually

  1. Install Fabric or Quilt

    The loader must match the game version of the mod file, for example Minecraft 1.20. After installing it, a separate profile appears in your launcher.

  2. Download the file for your version

    In the version list above, pick the file jmx-fabric-20.0.281.jar (811 KB) for your game version and loader.

  3. Put it in the mods folder

    The folder is inside .minecraft (Windows: %appdata%\.minecraft\mods). If it does not exist, create it.

  4. Launch the loader profile

    Open “Mods” in the main menu: JMX should be in the list.

Minecraft 1.20 runs on Java 17: with a different Java version the game may close right after launch.

Versionen

Mit Abhängigkeiten

MinecraftLoaderDateiDatumAktionen
1.20Fabric, Quiltjmx-fabric-20.0.281.jar811 KB
1.17Fabricjmx-mc117-1.22.200.jar367 KB

FAQ

Which Minecraft versions does JMX work on?

There are files for 1.20, 1.17. The newest is 1.20.

Is JMX for Forge or Fabric?

There are files for Fabric: 1.17–1.20 and for Quilt: 1.20. There are no files for Forge or NeoForge: a mod for another loader will not start.

Does JMX need other mods?

The author lists no required dependencies: the Fabric or Quilt loader is enough.

Which Java does JMX need?

Minecraft 1.20 runs on Java 17. If the game closes right after launch, the usual cause is the wrong Java version in the profile settings.

Where can I download JMX safely?

On this page: the file jmx-fabric-20.0.281.jar (811 KB) is stored on Millida’s server, with no link shorteners. SHA-1 checksum: 8a3f06d27cc2868eb15cb45a879a4ccb5441f6a7.

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