Paint with OpenGL

[kernel_panic]

The application IS slow because i paint more than 1000 objects...
For the Pimp My Widget Contest im writing an effects library. These effects can be attached to all kind of widgets. For some effects i cut the widgets into particles. The particles can reach a huge amount which rendering isnt realisable with the Qt paint engine.
Here a pic of the effects i yet have. with big particle size. which doenst really look pretty.

[wysota]

I wouldn't expect miracles then. What you can do is to set the DontShowOnScreen attribute on all widgets and call QWidget::render() on them to render them to an OpenGL buffer which you can then modify as you want and/or show on a QGLWidget. The downside is that you'll have to forward all the events to appropriate widgets.

[manishkyl]

I need to do a similar thing ..
but I dont find this attribute.,, DontShowOnScreen..in Qt documentation..

[wysota]

Because it's not documented.

WA_DontShowOnScreen = 103

WA_DontShowOnScreen = 103

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