Hi again,

> I have added results without antialiasing . Also
> WinXP NVidia driver was updated to latest version.
> Rather strange result for Java2D in Ubunutu with
> opengl=false.
Thanks a lot, very interesting data :)
The "old" X11 pipeline (Linux, no OpenGL) has quite a hard time with modern 
drivers, with the upcoming 180.* drivers you'll see even worse performance.

I am working on a new pipeline, improving the performance of non-opengl 
rendering on Unix:
http://linuxhippy.blogspot.com/

> There is no pixel-to-pixel correspondence when Qt
> OpenGL pipeline is enabled (I have taken two
> screenshots, there is only a subtle difference). With
> good enough drivers (like NVidia on Windows for
> example) usage of hardware acceleration improves
> performance about 4.4 time for my configuration
> (7600GS AGP is rather old). So having the option for
> usage of OpenGL driver's capabilities is a very good
> thing. And why there is no such option for Java2D?
Hmm, I am not from Sun so I don't know why Java2D doesn't offer such a 
quick&dirty mode.
It would probably quite useful for games - however games often use pre-rendered 
images anyway.

However to be honest I was quite disappointed about the quality QT+OpenGL shows 
on your screenshot.
It was my belief that modern hardware (like your GF7) in combination with 
latest drivers would behave much better from what I have seen from 5-year ago 
hardware, but still quality isn't reliable.
Its ok for games, but would you really build a user-interface on top of that, 
where you have a lot of tiny lines and small primitives?

- Clemens
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