Re: Glxgears behavior...
Re: Glxgears behavior...
- Subject: Re: Glxgears behavior...
- From: John Harper <email@hidden>
- Date: Tue, 15 Apr 2003 21:58:11 -0700
On Tuesday, April 15, 2003, at 21:09, Paul Handly wrote:
I haven't tried this for a while, so I don't know when it started, but
this is wierd nevertheless. My display runs at 1280x1024 resolution,
and when I fire up glxgears, it spins away at 1600+ fps. (albeit very
tiny) If I drag the little window so it overlaps (or underlaps) the
Dock, the framerate get chopped down to less than half that, only to
shoot back up when moved out from under the Dock. ANy reason why this
happens (I can't imagine I'm unique in this one - try it!)
If the GL window is totally unobscured it will draw directly into the
framebuffer. If it's partially obscured the OS X window server will
need to composite its contents with whatever is obscuring it, then put
the results into the framebuffer. If it's totally obscured it won't be
drawn at all. That accounts for the different frame rates you're
seeing,
John
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