QT - QTimer with multiple QGLWidgets -


i have application 2 qglwidgets updated same timer, running @ 60hz. strangely, maximum fps reach 30hz. if add third qglwidget (note third 1 updated additional timer) achieve 20 fps maximum on each widget. cpu load of main thread far 100%. seems me there dependency on number of qglwidgets , refresh rate of monitor number of used widgets multiplied max. fps equals refresh rate (60hz)...

anyone knows going on?


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