Re: Core Graphics Drawing in OpenGL Context?
Re: Core Graphics Drawing in OpenGL Context?
- Subject: Re: Core Graphics Drawing in OpenGL Context?
- From: Alastair Houghton <email@hidden>
- Date: Fri, 27 Jul 2007 20:44:22 +0100
On 27 Jul 2007, at 16:56, Sean McBride wrote:
On 2007-07-27 16:07, Alastair Houghton said:
Or can one only use openGL drawing functions to draw to an openGL
context?
I can think of a few options. If you have some Quartz or Cocoa stuff
to draw over the top, you can create a transparent window, making it
a child of the window with the OpenGL view in it (see -
addChildWindow:ordered:), and draw your Quartz content into that.
This is quite easy and should be pretty fast.
Creating transparent windows is a pain. Instead, the OP could also
take
a look at the UnderlaySurface example code (and search the archives
about it) which lets you put Cocoa views overlayed on opengl views.
That's really neat :-) I didn't know you could do that.
Kind regards,
Alastair.
--
http://alastairs-place.net
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