Minecraft:Dimension definition

File:Floating Islands custom dimension.png

A custom dimension using a custom type, a fixed Minecraft:plains biome, and the minecraft:floating_islands Minecraft:noise settings.

Template:Relevant tutorial Dimensions are Minecraft:JSON files located in Minecraft:data packs that define dimensions for the game. New dimensions added can be accessed by using commands, like Template:Cmd.

Usage

Dimensions are stored as Minecraft:JSON files within a data pack, at the path data/<namespace>/dimension/<name>.json. Alternatively, a Minecraft:Custom world preset can be used to customize all dimensions in a world. Dimensions stored separately override the dimension set in the selected world preset. This allows datapacks to only override a single dimension while keeping the other dimensions untouched. However, the user-selected world preset then doesn't have an impact on the given dimension.

JSON format

When stored as separate dimensions, they follow the following syntax:

• Template:Nbt The root tag.
  • Template:Nbt: Template:Json ref. Can be preset overworld, the_nether, the_end, overworld_caves, or a custom dimension type
  • Template:Nbt: Generation settings used for that dimension.
    • Template:Nbt: The generator type as Minecraft:resource location. One of noise, flat, or debug.
    • Additional fields of the generator, described below.

Generator types

debug

The generator type used when selecting Minecraft:debug mode in the world creation menu. This generator has no additional fields.

flat

The generator type used for Minecraft:superflat worlds.

• Additional fields:
  • Template:Nbt: Superflat settings.
    • Template:Nbt inherit/flat generator settings

noise

The generator used in all the default Minecraft:dimensions.

• Additional fields:
  • Template:NbtTemplate:Nbt: Template:Json ref — Settings for the noise generator.
  • Template:Nbt: Settings determining the biome layout.
    • Template:Nbt: The biome source type as a Minecraft:resource location.
    • Additional fields of the biome source, described below.

Biome sources

checkerboard

The checkerboard biome source places biomes in a checkerboard pattern.

• Additional fields:
  • Template:NbtTemplate:Nbt: Template:Json ref/biome. The biomes to be selected. The n-th biome in the list is used for all cells where Template:Cd, where Template:Cd is the list size and Template:Cd and Template:Cd are the cell coordinates (chunk pos × 2^Template:Nbt).
  • Template:Nbt: Optional. Value between 0 and 62 that defaults to 2. Determines the size of the checkerboard grid. A scale of 0 means each cell of the grid is one Minecraft:chunk wide. Doubles each time the scale increases.

fixed

The fixed biome source, also called Minecraft:single biome, uses one specified biome everywhere.

• Additional fields:
  • Template:Nbt: Template:Json ref/biome — The single biome to use.

multi_noise

A biome source that depends on multiple parameters defined in the Minecraft:noise router. Each biome is defined within a 4×4×4 cube based on the noise values at its edges.

• Additional fields:
  • Template:Nbt: A reference to a parameter list. The default parameter lists are overworld and nether.
• Or:
  • Template:Nbt: List of biome parameters points. Needs at least one entry. Biomes can appear in more than one parameter point.Template:More info
    • Template:Nbt: A parameter point.
      • Template:Nbt: Template:Json ref/biome — The biome used at this parameter point.
      • Template:Nbt: The parameters of this entry
        • Template:Nbt inherit/parameter point

the_end

The biome source used for Minecraft:the End dimension. This biome source has no additional fields.

Biomes are calculated based on each Minecraft:chunk for the x and z axes, and every 4 blocks for the y-axis.

• If the distance from the chunk edges to the origin is 1024 or less, the end biome is assigned.
• Otherwise, the biome is determined based on the erosion value (defined in Minecraft:noise router) calculated at the center of the chunk and the y-coordinate.

Erosion (e)	Biome
N/A	Template:BiomeLink
e > Template:Frac	Template:BiomeLink
Template:Frac ≥ e ≥ −Template:Frac	Template:BiomeLink
−Template:Frac > e ≥ −Template:Frac	Template:BiomeLink
e < −Template:Frac	Template:BiomeLink

Multi noise parameter list

A multi-noise biome source parameter list is stored as Minecraft:JSON files within a data pack, at the path data/<namespace>/worldgen/multi_noise_biome_source_parameter_list/<name>.json. It is used to avoid changing world preset files when adding new biomes to experimental data packs.

The syntax is as follows:

• • Template:Nbt: A reference to a hardcoded parameter list preset. The available presets are overworld and nether.

History

External links

• Dimension Generator on misode.github.io