Disk

Disk
Biomes	Depends
Generates in; existing chunks	No
Consists of	Clay; Or Gravel; Or Sand; Sandstone; Or Grass Block; Dirt;

A disk is a feature consisting of a naturally generated roughly circular deposit of a soil-like block under or next to bodies of water.

Description

Disks are generated at the Euclidean distance n (i.e. x²+y²=n²) from a given central block, creating a circular-looking pattern of the given block with a radius of n. They are commonly seen throughout rivers, shallow oceans, swamps, and mangrove swamps.

List

Block	Replaces blocks	Minimum size (n)	Maximum size (n)	Biomes
Sand, Sandstone (When above air)	Dirt, Grass Block	2	6	All Overworld biomes except swamp, mangrove swamp, and swamp hills‌^{[BE only]}(Unused)
Gravel	Dirt, Grass Block	2	5	All Overworld biomes except swamp, mangrove swamp, and swamp hills‌^{[BE only]}(Unused)
Clay	Dirt, Clay	2	3	All Overworld biomes
Grass Block, Dirt (when under solid-material block or Water)	Dirt, Mud	2	6	mangrove swamp

Data values

ID

Java Edition:

Feature type	Identifier
[No displayed name]	`disk`

Configured feature	Identifier
[No displayed name]	`disk_clay`
[No displayed name]	`disk_grass`
[No displayed name]	`disk_gravel`
[No displayed name]	`disk_sand`

Bedrock Edition:

Feature	Identifier
[No displayed name]	`clay_feature`
[No displayed name]	`gravel_feature`
[No displayed name]	`sand_feature`
[No displayed name]	`grass_disc_feature`

Config

Java Edition:

[NBT Compound / JSON Object] config
- [NBT Compound / JSON Object] state_provider The block to use.
  - [NBT Compound / JSON Object] fallback The block to use when all the rules' predicates are not passed.
    - Block state provider see Template:Nbt inherit/block state provider/template
  - [NBT List / JSON Array] rules (Required, but can be empty) Rules of the block to use.
    - [NBT Compound / JSON Object] One rule.
      - [NBT Compound / JSON Object] if_true The block predicate of this rule.
        
        [String] type: The type of the block predicate. See Block predicate § Types for options.
        
        additional fields depending on [String] type. See Block predicate § Types.
      - [NBT Compound / JSON Object] then The block to use when the predicate is passed.
        Block state provider see Template:Nbt inherit/block state provider/template
- [Int][NBT Compound / JSON Object] radius The radius of this disk. Value between 0 and 8 (inclusive).
  - Int provider see Template:Nbt inherit/int_provider/template
- [Int] half_height Half of the height of this disk. Value between 0 and 4 (inclusive).
- [NBT Compound / JSON Object] target A block predicate that must be passed to generate this feature.
  - [String] type: The type of the block predicate. See Block predicate § Types for options.
  - additional fields depending on [String] type. See Block predicate § Types.

An example

{
  "type": "minecraft:disk",
  "config": {
    "half_height": 1,
    "radius": {
      "type": "minecraft:uniform",
      "value": {
        "max_inclusive": 3,
        "min_inclusive": 2
      }
    },
    "state_provider": {
      "fallback": {
        "type": "minecraft:simple_state_provider",
        "state": {
          "Name": "minecraft:clay"
        }
      },
      "rules": []
    },
    "target": {
      "type": "minecraft:matching_blocks",
      "blocks": [
        "minecraft:dirt",
        "minecraft:clay"
      ]
    }
  }
}

History

Java Edition Beta
1.8	Pre-release	Added disks.
Java Edition
1.13	18w06a	Disks no longer generate in and around water lakes.^[1]
1.19	22w14a	Added grass disk in mangrove swamp.
Pocket Edition Alpha
v0.9.0	build 1	Added disks.
Bedrock Edition
1.19.0	beta 1.19.0.20	Added grass disk in mangrove swamp.

Issues

Issues relating to "Disk" are maintained on the bug tracker. Issues should be reported and viewed there.

Gallery

Screenshots

A lake in a flower forest with overlapping disks of sand, clay, gravel, and dirt.
A disk generated in a swamp biome.
A gravel disk next to a river.

References

↑ MC-169523 — As of 18w06a, the sand, clay and gravel blocks no longer generate around small lakes — resolved as "Fixed".

Navigation

[1] MC-169523 — As of 18w06a, the sand, clay and gravel blocks no longer generate around small lakes — resolved as "Fixed".

[1]

Biomes	Depends
Generates in existing chunks	No
Consists of	Clay Or Gravel Or Sand Sandstone Or Grass Block Dirt