Voxy — Minecraft 1.21.1 Port

Voxy is a far-distance LoD (Level of Detail) rendering mod for Minecraft that dramatically extends your view distance without the normal performance cost.

This repository is a 1.21.1 backport — the original creator (MCRcortex) skipped 1.21.1 through 1.21.4 and only maintains newer versions. This port fills that gap.

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Sources / Credits

Role	Repository
Original mod	MCRcortex/voxy
1.21.1 fork (base for this port)	m3t4f1v3/voxy @ mc_1211
This port	thijsi123/voxy

What happened / how this was made

MCRcortex's dev branch had moved past Minecraft 1.21.1 to newer versions (1.21.11, 26.x), leaving no working build for 1.21.1. Their 12111 branch targets a different version string (1.21.11) rather than the actual 1.21.1 release.

m3t4f1v3 had a proper mc_1211 branch targeting real minecraft_version=1.21.1 with community-merged fixes (fog rendering, config screen, etc.), but it was buried and not released as a build.

This repo was created with the help of Claude Code (Anthropic's AI coding assistant) which:

1. Cloned and analyzed both upstream repos (MCRcortex/voxy and m3t4f1v3/voxy)
2. Identified that m3t4f1v3's mc_1211 branch was the correct working 1.21.1 base (while MCRcortex's 12111 branch targets a different MC version entirely)
3. Created this clean working copy, configured it with portable Java (JDK 21), and verified it builds successfully
4. Published this repo and release

The mod compiled successfully on the first build attempt — no code changes were needed beyond confirming the right branch to use.

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Requirements

• Minecraft: 1.21.1 (Java Edition)
• Mod Loader: Fabric
• Required mods:
  • Fabric API 0.116.6+1.21.1
  • Sodium mc1.21.1-0.6.13 (required)
  • Lithium mc1.21.1-0.15.0 (required)
• Java: 21

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Installation

1. Install Fabric Loader for Minecraft 1.21.1
2. Download the JAR from the Releases page
3. Place it in your .minecraft/mods/ folder alongside Fabric API, Sodium, and Lithium
4. Launch Minecraft 1.21.1 with the Fabric profile

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Building from source

Requires JDK 21.

git clone https://github.com/thijsi123/voxy
cd voxy
./gradlew build
# Output: build/libs/voxy-*.jar

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Version info

Property	Value
Mod version	0.2.14-alpha
Minecraft	1.21.1
Fabric Loader	0.17.2
Fabric API	0.116.6+1.21.1
Sodium	0.6.13
Base commit	f308c254 (m3t4f1v3/voxy mc_1211)

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Original mod by MCRcortex. License: All-Rights-Reserved (see LICENSE.md). This port is provided as-is for the community.