Enabling depth testing when using CAOpenGLLayer

Posted by Andrew on Stack Overflow See other posts from Stack Overflow or by Andrew
Published on 2012-10-15T03:01:23Z Indexed on 2012/10/15 21:37 UTC
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Filed under:

xcode

|

cocoa

|

opengl

If one is using a subclass of NSOpenGLView then one enables depth testing by selecting a 16/24/32 bit buffer from the attributes menu in Xcode, and then adding

glEnable(GL_DEPTH_TEST);
glClear(GL_DEPTH_BUFFER_BIT);

to the drawRect method. However, in the application I'm creating I'm rendering OpenGL content via the drawInCGLContext method of a CAOpenGLLayer which is contained within a subclass of NSView. This means that it is no longer possible to create a depth buffer via the inspector. Does anyone know how I can achieve this in such a situation?

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