Re: Speed of Quartz (was: optimizing compilers)
Re: Speed of Quartz (was: optimizing compilers)
- Subject: Re: Speed of Quartz (was: optimizing compilers)
- From: Sandy Martel <email@hidden>
- Date: Mon, 4 Feb 2002 09:35:57 -0500
On Monday, February 4, 2002, at 05:02 AM, Phil Barrett wrote:
...
The performance of Quartz was atrocious - it was taking up to half a
second
to draw one screen's worth of waveform. We tried QuickDraw, but that
was too
much of a pain. We tried OpenGL, which was fast, but couldn't handle
fonts.
So we ended up using AppleGL. Sure, we get no nice antialiasing, but who
cares if it's the only way to get it to draw quickly?
Just enable OpenGL antialiasing, for 1 pixel wide line, it will still be
very fast and look like quartz...
Drawing line using OpenGL with antialiasing enabled is A LOT faster
then drawing line using quartz with antialiasing disabled! (1 pixel
thick line, for thicker line I got incorrect result with OpenGL)
Sandy.