Data2D (.) Format

Byte Order

Data2D data is stored in Little Endian byte order.

Parsing Data2D

Name	Size (in bytes)	Description
Heightmap	512	The heightmap for the chunk. Stored as 16-bit integers. ZX order (Z increments first)
2D Biomes	1024	Each entry of the biome array contains a biome ID in the first byte, and the final 3 bytes are red/green/blue color values respectively. Stored as 32-bit integers. ZX order (Z increments first)