Fill layer

Fill layer is a technical feature that fills all air blocks in a 16×1×16 layer with a specified block. It is used by the game in superflat worlds.

Data values

ID

Java Edition:

Feature type	[hide]Identifier
[No displayed name]	fill_layer

Config

Java Edition:

• [NBT Compound / JSON Object] config
  • [NBT Compound / JSON Object] state The block to fill with.
    • Block state see Template:Nbt inherit/block state/template[show]
  • [Int] height The layer to fill, starting at the bottom of the world. Value between 0 and 4064 (inclusive).

An example:

{
  "type": "minecraft:fill_layer",
  "config": {
    "state": {
      "Name": "minecraft:stone"
    },
    "height": 1
  }
}