How a pack works

Reloading

After you change anything in the content folder, run:

/rp reload

It re-reads every pack and config.yml, rebuilds the resource pack, and sends it to everybody online. Players see a short reload of their resource pack. If nothing changed, nobody downloads anything.

A pack is replaced whole#

A reload does not patch what changed: it loads everything again from the folder. Something you deleted stops existing straight away.

On a large pack this takes seconds. Run it while you are authoring; there is no reason to put it on a timer.

Mistakes do not stop it#

A bad definition is skipped and the rest of the pack loads. A broken pack never stops another one loading.

The console lists every problem in one go, with the file and the ID, so you can fix them all before reloading again. The content folder explains the common warnings.

What survives#

Everything already placed in the world. Placed models are ordinary entities saved with the chunk and tagged with their ID, so they survive a reload, a restart, and copying the world to another server.

Deleting a pack therefore does not delete what was built with it. Those models stay where they are with no art until the pack comes back.

Orphans#

An orphan is a placed model whose content no longer exists.

/rp models [radius]   placed models near you, orphans marked
/rp purge [radius]    remove the orphans near you, and nothing else

The radius is in blocks: 16 if you leave it out, 128 at most. /rp purge never removes a model whose pack still defines it.