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  "title" : "NSOpenGLLayer"
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# NSOpenGLLayer

A subclass of `CAOpenGLLayer` that is suitable for rendering OpenGL into layers.

```
class NSOpenGLLayer
```

## Overview

Unlike <doc://com.apple.documentation/documentation/QuartzCore/CAOpenGLLayer>, [`NSOpenGLLayer`](/documentation/AppKit/NSOpenGLLayer) uses AppKit types.

## Topics

### Drawing the Content

[`canDraw(in:pixelFormat:forLayerTime:displayTime:)`](/documentation/AppKit/NSOpenGLLayer/canDraw(in:pixelFormat:forLayerTime:displayTime:))

Invoked to ask the layer whether it can (or should) draw.

[`draw(in:pixelFormat:forLayerTime:displayTime:)`](/documentation/AppKit/NSOpenGLLayer/draw(in:pixelFormat:forLayerTime:displayTime:))

Draws the OpenGL content for the specified time.

### Managing the Pixel Format

[`openGLPixelFormat`](/documentation/AppKit/NSOpenGLLayer/openGLPixelFormat)

Provides access to the layer’s associated OpenGL pixel format.

[`openGLPixelFormat(forDisplayMask:)`](/documentation/AppKit/NSOpenGLLayer/openGLPixelFormat(forDisplayMask:))

Returns the OpenGL pixel format suitable for the specified displays.

### Managing the Rendering Context

[`openGLContext`](/documentation/AppKit/NSOpenGLLayer/openGLContext)

The layer’s OpenGL context.

[`openGLContext(for:)`](/documentation/AppKit/NSOpenGLLayer/openGLContext(for:))

Returns the OpenGL context to use for the requested pixel format.

### Accessing the Associated View

[`view`](/documentation/AppKit/NSOpenGLLayer/view)

Returns the view associated with the layer.


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