---
title: Intersect(TerrainRegion, TerrainRegion)
product: Unity Editor
version: '7000.0'
latest_version: '7000.0'
status: This page documents version 7000.0. The latest version is 7000.0.
canonical: https://docs.unity.com/en-us/engine/7000.0/script-reference/unityeditor/terraintools/terrainregion/intersect
latest_url: https://docs.unity.com/en-us/engine/7000.0/script-reference/unityeditor/terraintools/terrainregion/intersect.md
last_updated: 2026-10-20
generated_at: 2026-11-11T23:27:44.850Z
locale: en-us
---

# Intersect(TerrainRegion, TerrainRegion)

> Creates the region where two regions overlap.

## Definition

* **Type:** Method
* **Namespace:** [UnityEditor.TerrainTools](/engine/7000.0/script-reference/unityeditor/terraintools.md)
* **Assembly:** UnityEditor

```csharp
public static TerrainRegion Intersect(TerrainRegion first, TerrainRegion second)
```

### Parameters

**** (\[TerrainRegion]\(/engine/7000.0/script-reference/unityeditor/terraintools/terrainregion)): The first region.**** (\[TerrainRegion]\(/engine/7000.0/script-reference/unityeditor/terraintools/terrainregion)): The second region.

### Returns

| Type                                                                                       | Description                                                                                                                                                                 |
| ------------------------------------------------------------------------------------------ | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| [TerrainRegion](/engine/7000.0/script-reference/unityeditor/terraintools/terrainregion.md) | The intersection. When one of the regions is [TerrainRegion.whole](/engine/7000.0/script-reference/unityeditor/terraintools/terrainregion/whole.md), returns the other one. |

### Remarks

The weight of the intersection at a position is the smaller of the weights of the two regions there. An edit's blend band around an intersection is measured from the farther of the two regions, so it can reach past the distance it was given near the corners of the overlap.