# SyncTransforms()

> Apply Transform changes to the physics engine.

## Definition

* **Type:** Method
* **Namespace:** [UnityEngine](/engine/6000.7/script-reference/unityengine.md)
* **Assembly:** UnityEngine.PhysicsModule

```csharp
public static void SyncTransforms()
```

### Remarks

When a [Transform](/engine/6000.7/script-reference/unityengine/transform.md) component changes, any [Rigidbody](/engine/6000.7/script-reference/unityengine/rigidbody.md) or [Collider](/engine/6000.7/script-reference/unityengine/collider.md) on that [Transform](/engine/6000.7/script-reference/unityengine/transform.md) or its children may need to be repositioned, rotated or scaled depending on the change to the [Transform](/engine/6000.7/script-reference/unityengine/transform.md). Use this function to flush those changes to the physics engine manually.

Appropriate usage scenarios:

* Don’t use it in FixedUpdate() — Unity already syncs transforms automatically before each physics step.

* Do use it after Transform changes in Update()/LateUpdate() if you’re immediately performing a physics query.

* Don’t overuse it — it’s expensive if called every frame unnecessarily.

### Examples

```csharp
using UnityEngine;

public class SyncTransformExample : MonoBehaviour
{
    public Transform target;

    void Update()
    {
        // 1. Move a target object by setting its transform.position directly.
        target.position = new Vector3(5, 0, 0);

        // 2. Immediately tell Unity's physics engine to update its internal representation
        //    of all transforms (including the one just moved).
        Physics.SyncTransforms();

        // 3. Run a physics query — in this case, check if a sphere with radius 0.5
        //    centered at the new target position overlaps any colliders.
        if (Physics.CheckSphere(target.position, 0.5f))
        {
            Debug.Log("Something is overlapping the moved object!");
        }
    }
}
```