---
title: "glNormal3f(_:_:_:)"
framework: OpenGL ES
role: symbol
role_heading: Function
platforms: [iOS 2.0+, iPadOS 2.0+, Mac Catalyst 2.0+, tvOS 9.0+]
path: "opengles/glnormal3f(_:_:_:)"
---

# glNormal3f(_:_:_:)

## Declaration

```swift
func glNormal3f(_ nx: GLfloat, _ ny: GLfloat, _ nz: GLfloat)
```