QGraphicsItem::setOpacity and QGraphicsOpacityEffect
i found both above possibilities to change the opacity of an item. Is there a difference between them? Should I prefer one? Why are there 2 ways?
Thanks for your advices.
Graphics Effects are "considered deprecated ":http://labs.qt.nokia.com/2011/05/12/qt-modules-maturity-level-the-list/.
hm what is the best way then to use other effects like blur or shadow on your items?