---
title: RenderLayer.Set
framework: realitykit
role: symbol
role_heading: Structure
path: realitykit/renderlayer/set
---

# RenderLayer.Set

An unordered collection of unique render layers.

## Declaration

```swift
struct Set
```

## Overview

Overview RenderLayer.Set is used wherever a group of layers is specified—for example, on light components and RenderLayerComponent. You can create a RenderLayer.Set using an array literal: let layers: RenderLayer.Set = [.defaultLayer, RenderLayer("com.myapp.hero")]

## Topics

### Inspecting the set

- [count](realitykit/renderlayer/set/count.md)
- [isEmpty](realitykit/renderlayer/set/isempty.md)
- [contains(_:)](realitykit/renderlayer/set/contains(_:).md)

### Initializers

- [init()](realitykit/renderlayer/set/init().md)
- [init(_:)](realitykit/renderlayer/set/init(_:).md)

### Instance Methods

- [insert(_:)](realitykit/renderlayer/set/insert(_:).md)
- [remove(_:)](realitykit/renderlayer/set/remove(_:).md)

## Relationships

### Conforms To

- [Copyable](swift/copyable.md)
- [Equatable](swift/equatable.md)
- [Escapable](swift/escapable.md)
- [ExpressibleByArrayLiteral](swift/expressiblebyarrayliteral.md)
- [Sendable](swift/sendable.md)
- [SendableMetatype](swift/sendablemetatype.md)
- [Sequence](swift/sequence.md)