---
title: GL_OES_blend_subtract
framework: OpenGL ES
role: symbol
role_heading: Global Variable
platforms: [iOS 2.0+, iPadOS 2.0+, Mac Catalyst 2.0+, tvOS 9.0+, visionOS 1.0+]
path: opengles/gl_oes_blend_subtract
---

# GL_OES_blend_subtract

## Declaration

```swift
var GL_OES_blend_subtract: Int32 { get }
```