I am having problems synchronizing the position and rotation of the car wheels in a server authoritative model. Position and rotation of the car body (the one that has CoherenceSync component) are synchronizing well, however the wheels stay static all the time. I’ve tried selecting parent checkboxe…

Can you try to disable interpolation on the synced objects? Just the wheels, not the car. (by selecting None in the Configure window). I have a hunch that it might be interfering somehow?

Hey @Fontinixxl I’ve asked someone to take a look. Did you mean to include some code?

Are the wheels physics based? Make sure they are marked as kinematic on Networked Objects

If you want to sync properties on a child-object you need to double click the prefab to go into prefab editing mode. From there you can select the child-object in the hierarchy, and its properties (including position and rotation) will be available to sync.

To add to my colleague’s replies, you can see a similar setup of bindings in children objects in scene 5 of First Steps. The setup of the robotic arm is explained in the docs .

I wanted to upload some screenshoots of my prefab setup so it would be easier to see any potencial mistake

Yes, they are physics based. We use an external asset for this (VPP) but at the end it relies on Unity’s Wheel Collider. The Rigidbody (attached to the Root of the Car) is not marked as Kinematic, since we want to have collisions with other cars with a realistic physics response. Besides that, If …

I did that, and as @ciro suggested, I’ve been following that particular tutorial (scene 5) to double check that.

Car prefab setup [image] [image] Tire variable synchronization [image] Wheel Controller - As you can see it is on another game object [image] Two scripts for sending/receiving input from simulator [image]

Hmm, it’s a bit of a complex setup, hard to debug via forum… :slight_smile: Please bear with me if I misunderstood something. The way I understand it, the SimpleVehicleControllerInput is running on the client-side to send input to the server. This is correct. Then SimpleVehicleController is hoping…

Your assumptions are correct. In fact I tried what you propose and “it works”. So big kudos for you! Basically what I did is disable the SimpleVehicleController script for the networked entities, and make the RB Kinematic. Now the wheels are synchronizing, but (surprise, surprise) with a weird ro…

Rotation and position not synchronizing for CoherenceSync child gameobjects

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Rotation and position not synchronizing for CoherenceSync child gameobjects

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