# Holes

> Indicates a change to the Terrain holes data.

## Definition

* **Type:** Field
* **Namespace:** [UnityEngine](/engine/6000.0/script-reference/unityengine.md)
* **Assembly:** UnityEngine.TerrainModule

```csharp
Holes = 64
```

### Remarks

This flag is set when there are changes to the Terrain holes data, for example, after calls to [TerrainData.SetHoles](/engine/6000.0/script-reference/unityengine/terraindata/setholes.md). Note that calls to [TerrainData.SetHolesDelayLOD](/engine/6000.0/script-reference/unityengine/terraindata/setholesdelaylod.md) don't set this flag, even though those calls update the Terrain holes data. See [TerrainChangedFlags.DelayedHolesUpdate](/engine/6000.0/script-reference/unityengine/terrainchangedflags/delayedholesupdate.md).