# Sandbox.PolygonMesh.FindClosedFaces

```csharp
void FindClosedFaces(IReadOnlyList<FaceHandle> faceList, out List<FaceHandle> outClosedFaces)
```

### Parameters

- `faceList` (`IReadOnlyList<FaceHandle>`)
- `out outClosedFaces` (`List<FaceHandle>`)

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