HomeJavaDatapacksAlternate biome transitions
Alternate biome transitions
DatapacksJava

Alternate biome transitions

by Vecvec · on Modrinth

Which Minecraft do you have?

Every version of the game needs its own build. Pick yours, then download — the wrong build installs fine and then does nothing in the game. This mod is built for Data pack only.

⬇ Download for 1.21.11⬇ Download for 1.20–1.21.10
I don't know my version or loader
Open the Minecraft launcher and look at the profile you play on — it names both, like fabric-loader-1.21.4. The version also shows in the bottom-right corner of the game's main menu.
No loader in the profile name? Then it's plain Minecraft, and these mods won't run — you need Fabric or NeoForge installed first.
Alternate biome transitions — screenshot 1Alternate biome transitions — screenshot 2Alternate biome transitions — screenshot 3Alternate biome transitions — screenshot 4Alternate biome transitions — screenshot 5Alternate biome transitions — screenshot 6Alternate biome transitions — screenshot 7Alternate biome transitions — screenshot 8

This datapack adds transitions between biomes (small blobs of each extend into the other) to break up the harsh transitions between some biomes. See the gallery for images of what this looks like. This datapack also makes colder biomes generate further out higher up to make mountain transition more realistic.

Finding biomes

Because this datapack makes colder biomes generate higher up, the /locate command may find biomes up in the sky (i.e a plains 400 blocks above a savanna). This is especially common when increasing the height of a world. To counteract this, you should try to find the biome in an unmodified world. The same biome should be there in the world with this datapack (though sometimes there could be a closer one, if one almost generated, this datapack may generate a transition to it).

Customising

As of version 1.1.2, internally there is a config. Due to datapack limitations, you must edit the datapack to do this. To do this you should

  1. Unpack the zip file (copy contents into a new folder). For readability, I will refer to this folder as datapack.
  2. From the folder datapack, go to data/alternate_biome_transitions/worldgen/density_function/constants/.
  3. Edit the constants, currently
    • temperature_height_drop_amplitude.json controls how much the biome temperature drops when travelling upwards. 0 means no drop, 1 means default drop, numbers between them will blend between the two.
  4. Save the files.
  5. Create a new zip file and copy the contents of the folder datapack into it. This is now your modified version of this datapack.
Quick facts

Install steps are the general flow for this file type — see the MC Java Mods guides for the full walkthrough.

Verified by MCModsHub

These come from our own check of the pack file, not from the source page.

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