---
title: "glUniform1f(_:_:)"
framework: OpenGL ES
role: symbol
role_heading: Function
platforms: [iOS 3.0+, iPadOS 3.0+, Mac Catalyst 3.0+, tvOS 9.0+]
path: "opengles/gluniform1f(_:_:)"
---

# glUniform1f(_:_:)

## Declaration

```swift
func glUniform1f(_ location: GLint, _ x: GLfloat)
```