Question How to properly use Lerp or Slerp to change rotation of a network transform

Hello,

im relatively new to unity and even more so to netcode for gameobjects, so its possible that Im missing something simple.
My issue is with updating the rotation of a network transform using a ServerRpc and the huge difference in how long the rotation takes between Host and Client.

When doing it like this the object of corse rotates immediately on the Host (which is not what I want) and on the Client it actually looks ok:

Code (CSharp):

1. currentRotation = targetRotation;
2. UpdateRotationServerRpc(currentRotation );

When using Quaternion.Slerp or Lerp it takes extremly long on the Client (and also looks "jittery") but is looking very good on the Host:

Code (CSharp):

1. currentRotation = Quaternion.Lerp(transform.rotation, targetRotation, Time.fixedDeltaTime * _rotationSpeed);
2. UpdateRotationServerRpc(currentRotation);

The ServerRpc is as simple as this:

Code (CSharp):

1. private void UpdateRotationServerRpc(Quaternion targetRotation, ServerRpcParams serverRpcParams = default)
2.     {
3.         Logger.Instance.info($"Executing UpdateRotationServerRpc for Client {serverRpcParams.Receive.SenderClientId} now");
4.         transform.rotation = targetRotation;
5.     }

Any hints on what im missing and/or doing wrong here would be appreciated.

Kind regards
Markus

 

Why are you not using the built in components?

 

thanks for your answers guys, appreciated.

I am using NetworkTransforms and position and rotation are synced, thats not the issue. The issue is the HUGE difference in rotation speed between Host (fast/expected speed) and Client(MUCH slower and "jittery" rotation) when using Quaternion.Slerp or Lerp and then updating the rotation using ServerRpc.

I dont want clients to be able to change their position or rotation directly, so this should be Server Authoritive only.

 

I'm doing a third person shooter style prototype with netcode for gameobjects. And when using

NetworkTransform

, it has a very noticeable movement lag on the client, even though the documentation says it handles interpolation. Does that mean I need to have client side prediction instead? To have instant responsive client inputs?

I tried looking at the BossRush example but it's very complex to find what you want, not being used to the architecture, and it uses a point-and-click, not a wasd based movement

Attached my example code

 

So why use network for game objects if I can't even control the character on the clients without some lag