---
title: commandBuffer
framework: Compute Graph
role: symbol
role_heading: Instance Property
platforms: [iOS 27.0+, iPadOS 27.0+, Mac Catalyst 27.0+, macOS 27.0+, tvOS 27.0+, visionOS 27.0+]
path: computegraph/computegraphsimulation/advanceparams/commandbuffer
---

# commandBuffer

The command buffer to encode simulation commands into.

## Declaration

```swift
var commandBuffer: any MTLCommandBuffer
```