Описание
This Fabric mod for Minecraft 1.21 enables the debug feature `renderServerSideHitbox` which is present as an unused function in the game's code. Enable hitboxes with F3+B and this mod will show the server-side hitboxes in green in addition to the normal client-side ones in white.
This only works for the _integrated server_ in singleplayer mode.
Usage examples include observing desync after sprint-punching entities or standing on a client-side piston head.