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

# glFogf(_:_:)

## Declaration

```swift
func glFogf(_ pname: GLenum, _ param: GLfloat)
```