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

# glSampleCoverage(_:_:)

## Declaration

```swift
func glSampleCoverage(_ value: GLclampf, _ invert: GLboolean)
```