ForceBlend (PoC)
by Mauro0805
ForceBlend is a Fabric proof-of-concept mod that prepares existing Overworld chunks for Minecraft's native terrain blending after a seed or generator change.
What it does
Existing chunks that were generated before a change of seed, terrain generator or world import often show hard edges where they meet new terrain. ForceBlend marks eligible Overworld chunks with the correct blending data so the game's own blending job can smooth those borders. The mod does not generate terrain or replace the blending algorithm; it only prepares the chunks, and blending is triggered when neighbouring chunks are generated next to them.
The mod is useful after changing a world's seed, switching to a terrain generator added by datapacks or other mods, or importing chunks from another world. Terrain already generated on both sides of a border stays as it is, so unwanted chunks can be deleted on one side before running ForceBlend. The mod works alongside Sodium and has been checked against C2ME in testing. Fabric API is a required library.
Key features
Blending data markers
Eligible Overworld chunks receive the correct blending data marker, letting the game's own blending process work on them.
Chunk preparation only
The mod changes existing chunks without generating new terrain or altering vanilla blending rules.
Retroactive blending
Terrain blending applies to chunks already in the world, and it is triggered when new chunks are generated beside them.
Gallery
Compatibility
Latest build for each game version and loader.
26.x4 of 4 versions with builds
1.21.x12 of 12 versions with builds
1.20.x7 of 7 versions with builds
1.19.x5 of 5 versions with builds
1.18.x3 of 3 versions with builds
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Who it’s for: Singleplayer players and server owners who change a world's seed, terrain generator or chunks and want the borders between old and new terrain to blend.
How it compares
Empty World Generator is an MIT-licensed open source client and server mod for 1.18.2 – 1.21.11, while ForceBlend is for Fabric only and needs Java matching each Minecraft version. Regenerate Chunks is a server-side only MIT-licensed open source mod for 1.21 – 26.1.2 that rebuilds chunks instead of preparing them for blending, so it covers a different need. No Overworld Generation is server-side only, open source under the MIT License, and supports 1.21.11 alone.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| ForceBlend (PoC) | Fabric | 1.18 – 26.2 | Client and server | 2026-08-10 |
| Empty World Generator | Fabric | 1.18.2 – 1.21.11 | Client and server | 2026-05-04 |
| Regenerate Chunks | Fabric | 1.21 – 26.1.2 | Server-side only | 2026-05-13 |
| No Overworld Generation | Fabric | 1.21.11 | Server-side only | 2026-02-08 |
Questions
Does ForceBlend require Fabric API?
Do both the server and players need ForceBlend?
Will the mod support future Minecraft updates?
In the catalog
ForceBlend (PoC) is one of 8,515 World generation mods on ModsFinder, and one of 4,027 World generation mods for Fabric. 13,894 mods support Minecraft 26.2.
Similar mods
What the author says
Prepare existing chunks for Minecraft's built-in terrain blending. ForceBlend is a Singleplayer Fabric, proof of concept mod, that change existing Overworld chunks so vanilla terrain blending feature is trigged when new chunks are generated next to them. The mod doesn't generate terrain, move chunks, or replace…
Official listing
- Modrinth page
- modrinth.com/mod/forceblend
- Owner
- Mauro0805
- Published
- 2026-07-29
- Updated on Modrinth
- 2026-08-10
- Facts verified
- 2026-10-15