Pre-Chunk

Packet ID Direction
0x32 Clientbound

This is sent by the server to load or unload a chunk. When sending this packet at an already loaded chunk, the client will clear any previous blocks that were there. A chunk is a 16x128x16 spot.

Clientbound

Field Type Description
X Integer The X position of the chunk
Z Integer The Z position of the chunk
Load? Boolean Whether the client should load or unload the chunk

Example Packet

Field Value
X -9
Z 12
Load? true