# Sandbox.PolygonMesh.PerformBoolean

```csharp
bool PerformBoolean(PolygonMesh other, Transform relativeTransform, BooleanOperation operation)
```

Perform a boolean operation between this mesh (A) and another mesh (B).
The result replaces this mesh. The other mesh is not modified.

### Parameters

- `other` (`PolygonMesh`)
- `relativeTransform` (`Transform`)
- `operation` (`BooleanOperation`)

### Returns

`bool`

Declared in [Sandbox.PolygonMesh](/api/Sandbox.PolygonMesh).
Assembly: `Sandbox.Engine`.