Greets! I'd like to use ShaderEffectItem on a QML widget to have that widget affect the appearance of everything underneath it. For instance, it would be nice to be able to use a shader to blur and desaturate the area underneath a semi-transparent widget. This is proving difficult, though, as there's no obvious way for me to access anything on the screen below the widget in question. The documentation says:
It is possible to define one or more ShaderEffectItems to be a > ShaderEffectSource<http://developer.qt.nokia.com/doc/qt-4.8/qml-shadereffectsource.html>for > other ShaderEffectItems, but ShaderEffectItem should never be declared > as a child element of its source item(s) because it would cause circular > loop in the painting. > Any idea if there's a way to hack around this? Having a widget that can affect the pixels underneath it (with more than just alpha blending) would allow for some pretty neat effects. Thanks! Bart -- --
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