# SetPositionsSelf(Vector3[], bool)

> Sets the positions of the baked light probes stored in this LightProbes object.

## Definition

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

```csharp
public bool SetPositionsSelf(Vector3[] positions, bool checkForDuplicatePositions)
```

### Parameters

**** (\[Vector3\[]]\(/engine/6000.7/script-reference/unityengine/vector3)): The positions to set.**** (\[bool]\(https\://learn.microsoft.com/dotnet/api/system.boolean)): Whether to check for duplicate light probe positions at the cost of performance.

### Returns

| Type                                                          | Description                                                         |
| ------------------------------------------------------------- | ------------------------------------------------------------------- |
| [bool](https://learn.microsoft.com/dotnet/api/system.boolean) | `true` when the positions were successfully set. Otherwise `false`. |

### Remarks

When you change the positions of baked light probes using this method, you must call [LightProbes.Tetrahedralize](/engine/6000.7/script-reference/unityengine/lightprobes/tetrahedralize.md) or [LightProbes.TetrahedralizeAsync](/engine/6000.7/script-reference/unityengine/lightprobes/tetrahedralizeasync.md) to fully apply the changes.

Setting duplicate light probe positions will lead to incorrect behavior, such as black light probes appearing..

The following script additively loads a scene containing baked light probes and moves the probes:

```csharp
using System.Collections;
using UnityEngine;
using UnityEngine.SceneManagement;

public class MoveLightProbesExample : MonoBehaviour
{
    void Start()
    {
        StartCoroutine(LoadSceneAndMoveLightProbes());
    }

    IEnumerator LoadSceneAndMoveLightProbes()
    {
        // Fully load a scene containing light probes additively.
        Scene additiveScene = SceneManager.LoadScene("AdditiveScene", new LoadSceneParameters(LoadSceneMode.Additive));
        yield return null;

        // Get the light probes for the scene.
        LightProbes lightProbes = LightProbes.GetInstantiatedLightProbesForScene(additiveScene);

        // Move the light probes slightly.
        Vector3[] positions = lightProbes.GetPositionsSelf();
        for (int i = 0; i < positions.Length; i++)
        {
            positions[i] += Vector3.one;
        }
        lightProbes.SetPositionsSelf(positions, true);

        // Tetrahedralize to apply the changes to light probe positions.
        LightProbes.TetrahedralizeAsync();
    }
}
```

Additional Resources: [LightProbes.countSelf](/engine/6000.7/script-reference/unityengine/lightprobes/countself.md).