Modscraper Modscraper Minecraft
c2me - Au Naturel edition logo

c2me - Au Naturel edition

Mod

by acowadonis

A fork of the multi-threaded world generation mod with edits and optimisations specifically for the Au Naturel Modpack

Type

Mod

CurseForge Downloads

16,729

CurseForge ID

1394196

Last Updated

Apr 13, 2026

Description

C2ME - Forked with fixes and changes for the Au Naturel Modpack

For the original mod go here.  Many thanks to all who have done the mountain of work to make this possible!

C2ME is a concurrent chunk engine for minecraft, designed to make world generation multi-threaded and that much faster.  Combined with our optimised world building tectonic mod, I hope to squeeze out every drop of performance and stability at the same time.

Built for fabric 1.20.1 and run on forge via sinytra connector, this build of c2me is an attempt to allow for bug fixes, primarily being attempts to fix or limit memory leaks, deadlocks, freezes and resource exhaustion for the Au Naturel modpack while ensuring compatibility with the mods and java version under which Au Naturel is designed to run.  As the current builds of C2ME are primarily updated for later versions, I decided porting and working on the 1.20.1 version specifically long term is likely the most flexible and efficient strategy.

This version will not necessarily care about vanilla parity, nor will it be updated or ported except in the goal of supporting compatibility and performance of the Au Naturel modpack and included mods.

Others are free to use it however if it supports their goals and purposes.

Current summary (automatically generated by Claude AI):

  • C2MEStorageThread.java - Fixed race condition in queue size counters by changing volatile int to AtomicInteger
  • MixinAquiferSamplerImpl.java - Eliminated double array allocation in aquifer similarity calculation by using instance field for secondary return value
  • ObjectCachingUtils.java - Fixed cache eviction to happen before insertion instead of after, maintaining strict size bounds
  • ChunkDataSerializer.java - Added pre-cached byte arrays for numeric strings 0-31 to avoid repeated String.valueOf allocations
  • MixinProtoChunk.java - Fixed deadlock during world creation by removing blocking join() call in getNeedBlending(), returns safe default if future not complete
  • ChunkStatusUtils.java - Made SPAWN chunk status single-threaded to eliminate entity attribute thread contention causing lag spikes with entity mods

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