---
title: "glMultMatrixf(_:)"
framework: OpenGL ES
role: symbol
role_heading: Function
platforms: [iOS 2.0+, iPadOS 2.0+, Mac Catalyst 2.0+, tvOS 9.0+]
path: "opengles/glmultmatrixf(_:)"
---

# glMultMatrixf(_:)

## Declaration

```swift
func glMultMatrixf(_ m: UnsafePointer<GLfloat>!)
```