# SmoothSync

[**Smooth Sync** ](https://assetstore.unity.com/packages/tools/network/smooth-sync-96925)is a paid third-party Unity asset used to **synchronize object position, rotation, and scale** across the network with smooth interpolation and minimal jitter. It’s ideal for multiplayer games that require **precise and visually seamless object movement** — such as player characters, vehicles, or physics-based objects.

{% hint style="info" %}
Note: ObjectNet includes its own efficient [**Smooth Movement system**](https://www.youtube.com/watch?v=zJ6pjQN3TAc) for handling networked object motion.\
However, for developers who prefer an alternative solution, support for Smooth Sync is fully available and can be used in place of ObjectNet’s built-in synchronization.
{% endhint %}

## Smooth Sync Integration:

To use smooth sync with objectnet you need to first install the pack provided in our Discord channel "[Integration-Packs](https://discord.com/channels/1190264406907551824/1225147612701917294)", 

this pack allows to use SmothSync with ObjectNet
\
To use you need :

1. Disable all synchronizations of prefab into the Prefabs Database window
2. Add "SmoothSyncObjectNet" component to your prefab

<figure><img src="/files/QqcaN23XRqJteuTCyx5y" alt=""><figcaption></figcaption></figure>

<figure><img src="/files/Zbv2YLCxa3SBf4Mk8sb6" alt=""><figcaption></figcaption></figure>

{% hint style="warning" %}
Make sure the component is enabled on passive instances or else it will not work.
{% endhint %}

📚 For more detailed configuration and usage, be sure to refer to the [**official Smooth Sync documentation**](https://noblewhale.com/smooth_sync/) for advanced settings, optimization tips, and use-case examples.

***

## FAQ:

<details>

<summary>I keep getting Event "-900090" is not regiestered</summary>

This warning typically appears when a **Passive object has not finished initializing** before receiving data from its Active counterpart. This is expected behavior during early synchronization and will automatically resolve once the object is fully initialized.

***

#### 🛠️ Still seeing the warning repeatedly?

If the warning continues to appear after initialization, it's likely due to the **Smooth Sync component being disabled** on the Passive object.

To fix this:

1. Open the **Prefab Database** in the `NetworkManager`.
2. Locate the prefab showing the issue.
3. Under the [**Script section**](/objectnet/general/network-components/network-prefabs/prefab-scripts.md), **disable and re-enable** the Smooth Sync component.

This will refresh the component registration and should resolve the warning.

</details>


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