# SetUv1(NativeSlice<Vector4>)

> Replace the UV1 (TEXCOORD1) extras slice.

## Definition

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

```csharp
public void SetUv1(NativeSlice<Vector4> uv1)
```

### Parameters

**** (\[NativeSlice\<Vector4>]\(/engine/6000.7/script-reference/unity/collections/nativeslice1)):&#x20;

### Remarks

`uv1` must have length equal to `vertices.Length` OR be empty. An empty slice detaches the channel. Non-empty slices require the channel to be enabled on the panel's [ExtraVertexChannels](/engine/6000.7/script-reference/unityengine/uielements/extravertexchannels.md) mask.