Network Rigidbody

This component allows you to very easily utilize the Rigidbody over the network. It helps sync the actual forces of the Rigidbody, and utilizes physics to smoothly align it across the network.

If you need physics in multiplayer, you might want to read the Physics In Multiplayer page

Settings

It's a highly dynamic component, so although the default settings should work well for a lot of cases, it's recommended to familiarize yourself with what the various settings do.

A lot of values behind the scenes are modified dynamically, which is why so many settings are exposed. Things like a flat acceptable error threshold or hard correction threshold, yielded bad results during collision and faster movement, which is why the acceleration settings help to dynamically expand the acceptable ranges during big acceleration changes.

Setting	Effect
Owner Auth	Decides who holds the truth of the simulation. Server or Owner
Acceptable Error	How far from the actual position is it allowed to be to stop correcting
Hard Correction Threshold	How far from the actual position is it allowed to be, before teleporting
Max Correction Time	For how long can it stay outside of acceptable error before teleporting (-1 for infinity)
Spring Constant	The stiffness of the force pulling the object towards the target position
Damping Constant	The resistance applied to smooth out the movement and match the target's velocity. Helps prevent oscillation.
Rotation Spring Multiplayer	Multiplier for rotation correction strength relative to position correction
Min Rotation Correction Angle	Minimum angle error (degrees) before applying rotation correction
Uncertainty Spring Dampening	How much to reduce spring strength based on recent acceleration. Higher = more reduction during collisions
Acceleration Decay	How quickly the tracked acceleration decays back to zero
Hard Correction Acceleration Scale	How much to increase hard correction threshold based on recent acceleration
Max Hard Correction Multiplier	Maximum multiplier for the hard correction threshold
Low Speed Threshold	Speed under which we relax the spring to prevent jitter while moving slowly.
Low Speed Spring Multiplier	How much to weaken the spring at low speeds (0.1 = 10% strength)
Extrapolate Based On Ping	Whether the target position should extrapolate based on local ping
Max Forces Per Tick	Limit on how many specific force events (like AddForce/Explosions) can be synced in a single frame to prevent flooding
Thresholds	Minimum movement required to trigger a network update