---
title: "firstBufferIndex(type:)"
framework: realitykit
role: symbol
role_heading: Instance Method
platforms: [iOS 27.0+, iPadOS 27.0+, macOS 27.0+, tvOS 27.0+, visionOS 27.0+]
path: "realitykit/computegraphcomponent/firstbufferindex(type:)"
---

# firstBufferIndex(type:)

## Declaration

```swift
func firstBufferIndex(type: String) -> Int?
```