On Fri, 12 Oct 2012 12:21:30 +0000, Bache-Wiig Jens wrote: > I will leave that question for the graphics guys. I find it really > strange that the performance impact of this would be significant and > doubt that this is currently the case but I could easily be mistaking.
In Qwt I have an example called refreshtest that simply draws a curve as often as possible counting how many repaint events can be processed - nothing high sophisticated. I did a quick test with Qt 4.8.1 on my linux box with a curve of 1000 points: X11/pen width 0: ~480 fps X11/pen width 1: ~215 fps Raster/pen width 0/1: ~100 fps Sorry I don't have a Qt5 installation here - and yes I'm not happy that raster has become the default setting on X11. Uwe _______________________________________________ Development mailing list Development@qt-project.org http://lists.qt-project.org/mailman/listinfo/development