Rotation replication problem

Development Programming & Scripting Multiplayer & Networking
1

By gameplay reasons i have to control players rotation on server.
But when i rotate my character i get this lags:

Movement replicated:
replicated
Maybe on gif this looks not terrible, but it is

Same thing but Replicate Movement disabled:
not_replicated
Everything smooth.

I’m not sure what to do with it. Seems like when Replicate Movement is enabled, server trying to correct my rotation and this leads to lags.

I tried many many things, but still can’t make this work properly

Any help will be much appreciated

This is how i rotate my character (func called in tick):
0.666 on server was found randomly and gives most correct client/server rotation speed. Also changing or removing this value not helps with this problem.

    if(IsLocallyControlled() || GetNetMode() == NM_DedicatedServer)
	{
		const FRotator CurrentRotator = FRotator(0, GetActorRotation().Yaw, 0);
		const FRotator TargetRotator = FRotator(0, GetControlRotation().Yaw, 0);

		float InterpolationSpeed = 5.0f;
		
		if(GetNetMode() == NM_DedicatedServer)
		{
			const FRotator DesiredRotation = FMath::RInterpTo(CurrentRotator, TargetRotator, 0.01, InterpolationSpeed * 0.666);
			SetActorRotation(DesiredRotation);
		}
		else
		{
			const FRotator DesiredRotation = FMath::RInterpTo(CurrentRotator, TargetRotator, 0.01, InterpolationSpeed);
			SetActorRotation(DesiredRotation);
		}
	}
3

Im not rotating camera via server.
Im rotating only characters based on camera rotation.

So when i rotate camera, this goes to server.
Then server gets Camera( Control ) Rotation and rotate character to this rotation.
Then Replicated Movement share rotation on server to other clients.

In my code you can see i rotate own character locally.

It’s not that expensive, and it’s actually works. I have problem with lags only on own client, other clients see this smoothly as expected.

other_clien2

5

Okay i’m stupid

I tried to recreate something that already exists and working perfectly.

GetCharacterMovement()->bUseControllerDesiredRotation = true;
GetCharacterMovement()->RotationRate = FRotator(0,270,0);

This setup works exactly the same as my code above, but it does not lag