---
title: "glProgramUniform1fEXT(_:_:_:)"
framework: OpenGL ES
role: symbol
role_heading: Function
platforms: [iOS 5.0+, iPadOS 5.0+, Mac Catalyst 5.0+, tvOS 9.0+]
path: "opengles/glprogramuniform1fext(_:_:_:)"
---

# glProgramUniform1fEXT(_:_:_:)

## Declaration

```swift
func glProgramUniform1fEXT(_ program: GLuint, _ location: GLint, _ x: GLfloat)
```