Fast Noise
Vanilla Worldgen optimization mod
Screenshots
Über diese Mod
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Fast Noise is a modern optimization mod to improve world generation times. I regularly update the mod to latest minecraft versions, bring improvements to the mod, and provide stable releases.
Does the mod change world generation? The mod maintains vanilla parity, including with any datapacks. Do keep in mind, Vanilla non-determinism.
Can I use custom worldgen mods with this? Yes, I try my best to maintain mod compatibility, and only modify safe code. Specific optimizations that may affect mod compatibility are disabled by default.
FastNoise is part of Reverie Projects, check out our other mods as well.
How does this mod work?
Fast noise optimizes storing block and biome data into chunks for the duration of worldgen.
Technical Details
Fast noise replaces populateNoise,populateBiomes in NoiseChunkGenerator and surfaceBuilder in SurfaceBuilder.
Fast noise optimizes world generation by making several strong assumptions about how world generation works. By replacing vanilla's generic and debug code for world storage with faster, more packed calculations, fast noise achieves faster throughput.
Some key methods used to achieve that are, reducing allocations, avoiding palette resizing, delaying/packing block counting, precalculating data,
caching block state information and more.
How fast is it?
About 10-18% improvement to overall worldgen in overworld in 1.21.11 on latest versions.
Much higher improvement in nether, end
Here is a Jmh Benchmark Software.
Chunky benchmark
12 threads w/ mod
[12:39:32] [Server thread/INFO]: [Chunky] Task finished for minecraft:overworld. Processed: 16641 chunks (100.00%), Total time: 0:01:37
W/o mod
[12:43:08] [Server thread/INFO]: [Chunky] Task finished for minecraft:overworld. Processed: 16641 chunks (100.00%), Total time: 0:01:47
4 threads w/ mod
[12:56:23] [Server thread/INFO]: [Chunky] Task finished for minecraft:overworld. Processed: 9409 chunks (100.00%), Total time: 0:01:10
W/o mod
[13:01:11] [Server thread/INFO]: [Chunky] Task finished for minecraft:overworld. Processed: 9409 chunks (100.00%), Total time: 0:01:23
With higher distance
W/o mod
[13:11:01] [Server thread/INFO]: [Chunky] Task finished for minecraft:overworld. Processed: 19881 chunks (100.00%), Total time: 0:02:43
W/ mod
[13:16:03] [Server thread/INFO]: [Chunky] Task finished for minecraft:overworld. Processed: 19881 chunks (100.00%), Total time: 0:02:21
Jmh benchmark
Mods used: FastNoise 1.0.37+26.2 on 26.2
ChunkPos: -16,-16 -> 16,16
End ChunkPos: 112,112 -> 144,144
Chunks: 1089
Mods used: c2me-fabric-mc26.2-0.4.2-alpha.0.9.jar
Benchmark (worldName) Mode Cnt Score Error Units
BiomesBenchmark.biomegen overworld avgt 5 3058.005 ± 256.587 ms/op
BiomesBenchmark.biomegen nether avgt 5 188.188 ± 3.156 ms/op
BiomesBenchmark.biomegen end avgt 5 31.560 ± 4.200 ms/op
NoiseBenchmark.noisegen overworld avgt 5 12332.480 ± 364.223 ms/op
NoiseBenchmark.noisegen nether avgt 5 2447.385 ± 20.773 ms/op
NoiseBenchmark.noisegen end avgt 5 6420.598 ± 195.649 ms/op
SurfaceBenchmark.surface overworld avgt 5 14948.653 ± 333.900 ms/op
SurfaceBenchmark.surface nether avgt 5 9330.611 ± 243.701 ms/op
SurfaceBenchmark.surface end avgt 5 3485.872 ± 8.225 ms/op
Benchmark (worldName) Mode Cnt Score Error Units
BiomesBenchmark.biomegen overworld avgt 5 2980.699 ± 98.824 ms/op
BiomesBenchmark.biomegen nether avgt 5 177.827 ± 2.815 ms/op
BiomesBenchmark.biomegen end avgt 5 14.990 ± 0.575 ms/op
NoiseBenchmark.noisegen overworld avgt 5 9419.623 ± 317.746 ms/op
NoiseBenchmark.noisegen nether avgt 5 1253.599 ± 15.977 ms/op
NoiseBenchmark.noisegen end avgt 5 5424.879 ± 81.860 ms/op
SurfaceBenchmark.surface overworld avgt 5 10490.488 ± 901.258 ms/op
SurfaceBenchmark.surface nether avgt 5 3361.448 ± 53.809 ms/op
SurfaceBenchmark.surface end avgt 5 1.723 ± 0.289 ms/op
Speedup:
| Stage/Dimension | Overworld | Nether | The End |
|---|---|---|---|
| Biome | 1.025x | 1.058x | 2.105x |
| Noise | 1.309x | 1.952x | 1.183x |
| Surface | 1.424x | 2.775x | 2023.14x |
Old Jmh Benchmark
Mods used: Fast Noise 1.0.15+26.1 on 26.1 snapshot-6
ChunkPos: -16,-16 -> 16,16
End ChunkPos: 112,112 -> 144,144
Chunks: 1089
Mods used: (c2me)
With mod:
Benchmark (worldName) Mode Cnt Score Error Units
BiomesBenchmark.biomegen end avgt 5 11.786 ± 0.168 ms/op
BiomesBenchmark.biomegen nether avgt 5 174.833 ± 1.166 ms/op
BiomesBenchmark.biomegen overworld avgt 5 2401.797 ± 31.629 ms/op
NoiseBenchmark.noisegen end avgt 5 3052.242 ± 12.358 ms/op
NoiseBenchmark.noisegen nether avgt 5 1039.086 ± 6.467 ms/op
NoiseBenchmark.noisegen overworld avgt 5 8441.811 ± 41.396 ms/op
With only c2me:
Benchmark (worldName) Mode Cnt Score Error Units
BiomesBenchmark.biomegen end avgt 5 26.058 ± 0.245 ms/op
BiomesBenchmark.biomegen nether avgt 5 185.957 ± 2.203 ms/op
BiomesBenchmark.biomegen overworld avgt 5 2464.937 ± 29.007 ms/op
NoiseBenchmark.noisegen end avgt 5 3925.059 ± 14.292 ms/op
NoiseBenchmark.noisegen nether avgt 5 1920.705 ± 9.864 ms/op
NoiseBenchmark.noisegen overworld avgt 5 11552.674 ± 54.112 ms/op
Vanilla:
Benchmark (worldName) Mode Cnt Score Error Units
BiomesBenchmark.biomegen end avgt 5 27.051 ± 0.118 ms/op
BiomesBenchmark.biomegen nether avgt 5 239.634 ± 1.702 ms/op
BiomesBenchmark.biomegen overworld avgt 5 4589.322 ± 80.331 ms/op
NoiseBenchmark.noisegen end avgt 5 4477.113 ± 36.133 ms/op
NoiseBenchmark.noisegen nether avgt 5 1951.438 ± 5.748 ms/op
NoiseBenchmark.noisegen overworld avgt 5 14249.612 ± 57.388 ms/op
Vanilla:
Benchmark (worldName) Mode Cnt Score Error Units
SurfaceBenchmark.surface overworld avgt 5 5982.828 ± 17.992 ms/op
SurfaceBenchmark.surface nether avgt 5 2677.115 ± 9.293 ms/op
SurfaceBenchmark.surface end avgt 5 924.604 ± 5.376 ms/op
With Mod:
Benchmark (worldName) Mode Cnt Score Error Units
SurfaceBenchmark.surface overworld avgt 5 4820.672 ± 24.669 ms/op
SurfaceBenchmark.surface nether avgt 5 1914.289 ± 644.099 ms/op
SurfaceBenchmark.surface end avgt 5 0.014 ± 0.003 ms/op
Speedup
Overworld: Biome: 1.026x Noise: 1.368x Surface: 1.241x
Nether: Biome: 1.063x Noise: 1.847x Surface: 1.398x
End: Biome: 2.21x Noise: 1.285x Surface: 66357x
The benchmarks may have some inaccuracies.
Socials
FAQ and Help
FAQ
Q- What Minecraft versions will the mod be supporting?
A- I'll try to support the latest minecraft version.
Q- Are backports planned?
A- No backports are planned, current backports were a one time thing.
Q- What other mods/dependencies do I need?
A- No dependencies are required.
Q- Will there be a forge backports for 1.19.x 1.20.x?
A- Not planned.
Q- XYZ mod crashes, or generates incorrectly with Fast Noise?
A- Report the issue on codeberg or my socials.
Incompatible mods
Moonrise is incompatible, as It changes minecraft internals drastically
Noisium is incompatible, as Fast Noise is intended as a replacement for noisium.
Anti-Xray is incompatible for now, as it needs to put extra data in minecraft block storage, which breaks fastnoise
Credits
- Stevenplays, for developing noisium mod, I started developing fast noise while trying to port noisium to latest minecraft.
- Ishland, for helping with mod, and modern-yarn and neo-loom
Reverie Projects
Consider joining the Reverie Projects for sneak peeks and updates on development! By joining, you can:
- Get installation help and technical support for alot of awesome projects
- Get the latest updates about development
- Talk with and collaborate with our team
- And just hang out with the rest of our community!
Verfügbare Versionen
Fast Noise auf dem Server installieren
Server bestellen
Bestelle einen Minecraft Java Server mit mindestens 4 GB RAM (6 GB empfohlen).
fabric Loader setzen
Wähle im Panel unter "Egg" den fabric-Loader und die passende Minecraft-Version (26.3-snapshot-9).
Mod installieren
Öffne den Mod-Browser im Dashboard und suche nach "Fast Noise". Klicke "Installieren" – fertig! Alternativ: Lade die .jar via SFTP in den /mods Ordner.
Kompatibilität
Mod-Loader
Minecraft-Versionen
26.3-snapshot-9, 26.3-snapshot-8, 26.3-snapshot-7 (+123 weitere)
Server-seitig
~ OptionalEmpfohlener RAM
6 GB(min. 4 GB)Häufige Fragen
Fast Noise Server crasht beim Start – was tun?
Häufigste Ursache: falsche fabric-Version oder zu wenig RAM. Prüfe im Server-Log (latest.log), ob ein "OutOfMemoryError" oder "Mixin"-Fehler auftritt. Bei Mado Hosting: Stelle sicher, dass mindestens 4 GB RAM zugewiesen sind und der Loader zur Mod-Version passt (26.3-snapshot-9). Über das Panel kannst du den Loader mit einem Klick wechseln.
Ist Fast Noise mit fabric und forge und neoforge und quilt kompatibel?
Fast Noise unterstützt offiziell fabric, forge, neoforge, quilt für Minecraft 26.3-snapshot-9, 26.3-snapshot-8, 26.3-snapshot-7. Achtung: Forge- und Fabric-Mods sind NICHT untereinander kompatibel – wähle einen Loader und bleibe dabei. Im Mado Dashboard werden inkompatible Loader-Kombinationen automatisch erkannt.
Server laggt mit Fast Noise – wie optimiere ich die Performance?
Empfohlener RAM: 6 GB (+1 GB pro 5 Spieler). Prüfe mit /spark profiler, ob Fast Noise den meisten Tick-Time verbraucht. Häufige Fixes: Server-View-Distance auf 8-10 reduzieren, bei Forge "performant" oder "starlight" als Zusatz-Mod installieren. Bei Mado Hosting läuft dein Server auf NVMe-SSDs mit dedizierten CPU-Kernen für minimale Latenz.
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Modded Server mieten
Installiere Fast Noise mit nur einem Klick auf deinem Server.