---
title: default
framework: realitykit
role: symbol
role_heading: Type Property
path: realitykit/arview/environment-swift.struct/sceneunderstanding-swift.struct/options-swift.struct/default
---

# default

The .default options is a sentinel value that indicates the user wants whatever scene-understanding features work with the current device and are supported. It overrides other options in the options set.

## Declaration

```swift
static let `default`: ARView.Environment.SceneUnderstanding.Options
```