# LoadRegionPlugin

class in `3d-tiles-renderer/three/plugins`

```js
import { LoadRegionPlugin } from '3d-tiles-renderer/three/plugins';
```

Plugin that restricts tile loading and traversal to one or more geometric regions
(`SphereRegion`, `RayRegion`, `OBBRegion`). Only tiles that intersect an active
region are loaded and refined. Regions marked as masks additionally prevent tiles
outside them from loading.

## Constructor

```js
new LoadRegionPlugin( options?: Object )
```

- `options`, `Object`, optional
  - `regions`, `Array<BaseRegion>`, optional, default `[]`: Initial set of regions to register. Equivalent to calling `addRegion` for each entry.