# draw(in:pixelFormat:forLayerTime:displayTime:) Draws the OpenGL content for the specified time. ``` func draw(in context: NSOpenGLContext, pixelFormat: NSOpenGLPixelFormat, forLayerTime t: CFTimeInterval, displayTime ts: UnsafePointer) ``` ## Parameters `context` The NSOpenGLContext in to which the OpenGL content would be drawn. `pixelFormat` The pixel format used when the context was created. `t` The current layer time. `ts` The display timestamp associated with timeInterval. Can be `null`. ## Discussion This method is called when a new frame needs to be generated for the layer time specified by timeInterval. --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)