---
title: PortalComponent.BoundaryMode
framework: realitykit
role: symbol
role_heading: Enumeration
platforms: [iOS 27.0+, iPadOS 27.0+, Mac Catalyst 27.0+, macOS 27.0+, tvOS 27.0+, visionOS 27.0+]
path: realitykit/portalcomponent/boundarymode
---

# PortalComponent.BoundaryMode

A combination of clipping and crossing behaviors to apply to a portal boundary.

## Declaration

```swift
enum BoundaryMode
```

## Overview

Overview Pass this value to the factory entry points to configure clippingMode and crossingMode together.

## Topics

### Enumeration Cases

- [PortalComponent.BoundaryMode.clippingAndCrossing](realitykit/portalcomponent/boundarymode/clippingandcrossing.md)
- [PortalComponent.BoundaryMode.clippingOnly](realitykit/portalcomponent/boundarymode/clippingonly.md)
- [PortalComponent.BoundaryMode.crossingOnly](realitykit/portalcomponent/boundarymode/crossingonly.md)
- [PortalComponent.BoundaryMode.disabled](realitykit/portalcomponent/boundarymode/disabled.md)

## Relationships

### Conforms To

- [Equatable](swift/equatable.md)
- [Hashable](swift/hashable.md)
- [Sendable](swift/sendable.md)
- [SendableMetatype](swift/sendablemetatype.md)