---
title: defaultValue
framework: realitykit
role: symbol
role_heading: Instance Property
platforms: [iOS 27.0+, iPadOS 27.0+, tvOS 27.0+, visionOS 27.0+]
path: realitykit/shadergraph/nodedefinition/output/defaultvalue
---

# defaultValue

The default value for this output, if any exists.

## Declaration

```swift
let defaultValue: ShaderGraph.Value?
```