---
title: "presentRenderbuffer(_:)"
framework: opengles
role: symbol
role_heading: Instance Method
path: "opengles/eaglcontext/presentrenderbuffer(_:)"
---

# presentRenderbuffer(_:)

Displays a renderbuffer’s contents on screen.

## Declaration

```swift
func presentRenderbuffer(_ target: Int) -> Bool
```

## Parameters

- `target`: The OpenGL ES binding point for a currently bound renderbuffer. The value of this parameter must be GL_RENDERBUFFER (or GL_RENDERBUFFER_OES in an OpenGL ES 1.1 context).

## Return Value

Return Value true if successful; otherwise, false.

## Discussion

Discussion The renderbuffer to be displayed must have been allocated storage using the renderbufferStorage(_:from:) method. The exact semantics for how and when the renderbuffer contents are displayed is controlled by the drawable object. important: The contents of the renderbuffer may be altered after the renderbuffer is presented to the screen. After presenting the renderbuffer, your application must  completely redraw the contents of the renderbuffer before presenting it again. To preserve the contents of the renderbuffer you may set the kEAGLDrawablePropertyRetainedBacking key of the drawableProperties dictionary to true. Setting the key to true may result in reduced graphics performance and increased memory usage. Therefore, choose this setting only when you need the renderbuffer’s contents to remain unchanged.

## See Also

### Related Documentation

- [renderbufferStorage(_:from:)](opengles/eaglcontext/renderbufferstorage(_:from:).md)