Description
Gallery
Changelog
Versions
This is a rewrite of my old Voxy World Gen mod, this mod is NOT a fork of the passive chunk generator mod and instead is a entirely different mod.
Features
- Generates chunks very fast in the background and auto-ingest them with voxy.
- Configurable generation speed and queue size.
- Tellus integration. https://github.com/Yucareux/Tellus
- Server-side support.
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Configuration
Config files are located in config/voxyworldgenv2.json.
License
CUSTOM, refer to LICENSE file for more information.
All Versions
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[2.4.3] Voxy WorldGen 2.4.3
by iseeethan on Oct 14, 2026
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- fixed config settings not saving on fabric, you could turn generation off but not back on without reinstalling the mod
- config screen now shows your actual saved settings instead of whatever the last server you joined was using
- settings you change in singleplayer now stick when you reopen the config screen
- leaving a server with the config screen open no longer overwrites your local settings with that server's
- your client-only settings no longer get wiped when the server reloads its config
- a broken or empty config file no longer wipes all your settings on startup
- stopped the chunk scan from re-running several times a second while you're moving around
- fixed lag spikes when the LOD send queue backed up during heavy generation
- fixed a rare bug where a finished chunk could get lost and the generator would keep regenerating the same area forever
- fixed world data being held in memory after leaving a world
have had this sitting in #testing for a while and finally decided to update here!
[2.4.2] Voxy WorldGen 2.4.2
by iseeethan on Oct 14, 2026
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- same as below
[2.4.2] Voxy WorldGen 2.4.2
by iseeethan on Oct 14, 2026
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- fixed players without the mod getting kicked with invalid player data when joining a neoforge server, the mod is optional now and vanilla clients just don't get lod data
- stopped generating chunks around players who don't have the client mod, no point since they can't render it anyway
- active task count in f3 holds steady near your configured max instead of bouncing between the cap and a low number, load easing is smoothed now
- fixed chunks generating unevenly when lots of players are on (one player used to hog all the work, now it's split fairly)
- fixed catch-up leaving permanent white holes (chunk got marked synced even when it never sent)
- chunk loads no longer spam every player every time, skips people who lack the mod or already have the chunk
- block edits no longer tax every single block change on the server, bails early when no one has the mod
- dirty section backlog is capped now so a redstone/fluid storm can't blow up memory
- block edit resend timing actually uses the update_interval config instead of a hardcoded value
- send queue is capped so a broadcast storm can't grow memory forever
- stopped sending chunks to players who already left or walked out of range
- synced chunks get cleared on dimension change so old stuff doesn't block syncing in the new world
- client ingest sorts once per tick instead of scanning the whole queue every time, way less lag
- when the queue overflows it drops the farthest chunk instead of the oldest
- empty block light is sent as null now instead of a dead 2048 byte array, saves bandwidth
- added a protocol version to the handshake so mismatched versions just don't sync instead of breaking
- fabric client ingest now matches the neoforge design (queued + drained per tick nearest-first)
- you can use config menu on server to edit server config if your op
[2.3.1] Voxy WorldGen 2.3.1
by iseeethan on Oct 14, 2026
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- fixed world stuck in saving when closing it
[2.3.0] Voxy WorldGen 2.3.0
by iseeethan on Oct 14, 2026
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- ported to neoforge 1.21.1 yayyy
- fixed chunks not syncing for some players (broadcast never marked chunks as synced)
- unified the sync radius across all paths so every player gets the same chunks
- fixed unfair sync: worker now round-robins players instead of always favoring the first
- new players now get a prioritized backfill of already-generated chunks on join
- two-way handshake: server now knows which clients have the mod and skips vanilla clients
- block edits now sync only the changed section instead of re-uploading the whole chunk column
- client ingests lod data nearest-first so chunks fill from the player outward, no more far ring
- client ingest is rate-limited per tick to keep client fps smooth
- packet batching offloaded off the server tick thread
- per-player synced-chunk sets are pruned so they don't grow forever
- config screen split into client and server tabs so it's clear what affects the server
- server config tab is read-only for non-ops, shows the server's real values
- ops can edit server config from the client and it pushes to the server live (no restart)
- packet size budgeting accounts for framing overhead
- first-run config scales max parallel tasks to cpu core count
- in short the networking is a lot more stable and performant!**
- _could have bugs, use with caution_**
[2.2.4-26.1.2] Voxy WorldGen 2.2.4-26.1.2
by iseeethan on Oct 14, 2026
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- fix crash when opening f3+f6 menu (allEntries returns unmodifiable map)
- default status to IN_OVERLAY so entry shows without manual enable
- remove showF3MenuStats config option (redundant, use f3+f6 menu instead)
- bump to minecraft 26.1.2, fabric-api 0.147.0+26.1.2
[2.2.4] Voxy WorldGen 2.2.4
by iseeethan on Oct 14, 2026
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- fixed nether blocks rendering incorrectly in overworld after dimension switch
- fixed hard biome blend edges and snow artifacts on new world creation
- fixed generation continuing when voxy is disabled in its settings
- re-ingests chunks on load so voxy receives correct biome neighbor context
- discards LOD packets from mismatched dimensions to prevent cross-dimension rendering corruption
- pauses background generation worker when voxy rendering is turned off
This will be the last 1.21.6-1.21.11 update, everything will be 26.1+ from now on.
[2.2.3] Voxy WorldGen 2.2.3
by iseeethan on Oct 14, 2026
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- fixed chunk synchronization for completed chunks that are not yet loaded into memory
- added chunk-load event hook to sync LOD data when completed chunks load naturally
- marked completed chunks as synced upfront to prevent tight re-queueing loops
- fixed throttling/lag when chunk generation finishes by breaking sync batch retry cycle
- prevented unloaded chunks from blocking synced chunk tracking indefinitely
- fixed memory leak
[2.2.2] Voxy WorldGen 2.2.2
by iseeethan on Oct 14, 2026
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- fixed memory leak
- fixed server ingesting
- fixed world ingesting carrying over
[2.2.1] Voxy WorldGen 2.2.1
by iseeethan on Oct 14, 2026
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- made tellus integration actually work + fast, still need to add fast-mode
- dedicated server support!
- optimizations and bug fixes
[2.1.1] Voxy WorldGen 2.1.1
by iseeethan on Oct 14, 2026
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- fixed issue where lowering max tasks would cause it to break
- fixed more misc issues
[2.1.0] Voxy WorldGen 2.1.0
by iseeethan on Oct 14, 2026
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- added tellus support
- clean up code a lot
- added setting to disable mod
- added setting to disable f3 debug info
- optimized a lot
- fixed bug, where it wouldnt generate chunks with low max tasks
- ANY VERSION UNDER 1.21.11 MAY BE UNSTABLE OR NOT WORK**
- Full Changelog**: https://github.com/iSeeEthan/voxy_worldgen_v2/compare/2.0.5...2.1.0
[2.0.5] Voxy WorldGen 2.0.5
by iseeethan on Oct 14, 2026
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- increased speed for distant gen a lot
- queue updates way more quickly
- tons of other background and architectural changes
- changed versioning # system
[1.0.0] Voxy WorldGen V2 1.0.0
by iseeethan on Oct 14, 2026
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A complete rewrite that is way faster and more performant.
[1.1.7] Voxy WorldGen 1.1.7
by iseeethan on Oct 14, 2026
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- fix: mass tps lag on world/server start (37d31ad)
[1.1.6] Voxy WorldGen 1.1.6
by iseeethan on Oct 14, 2026
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- added support for 1.21.6 > 1.21.11
- added f3 menu stats
- improved threading
- one tiny bug left to fix, tick lag on world start
- more changes, refer to github
[1.1.3] Voxy WorldGen 1.1.3
by iseeethan on Oct 14, 2026
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- inital release
- refer to github for all changes
