Alternative to qgraphicsdropshadoweffect

[reginaldt]

Is there a way to create shadow like qgraphicsdropshadoweffect? Because the qgraphicsdropshadoweffect have great impact on PC performance. I tried set boarder radius (stylesheet) but it doesnt look good. Im creating a multiple buttons on a stackwidget and each of it has qgraphicsdropshadoweffect like you guys see on a POS (especially on food). Im using qt 4.7.3.

[aamer4yu]

May be you can shift to latest Qt 5.3.1 and see the performance in that...
Effects will involve heavy computing and Qt 5.x onwards scene graph is meant to do such job with better efficiency.

[reginaldt]

I cant this is the version we are using for more than 3years and we think that it will affect all of the previous deployment we had from those years when we will patch the update. Is it possible to have other alternative?

[aamer4yu]

One way would be to use separate shadow images. You can then combine these shadow with the original image to get the effect.

Say you use butterfly.jpg ,,, get a butterfly_shadow.jpg made from the designer. Then you can overlay these 2 images to get the desired effect.

[reginaldt]

Is this possible on QPushButton?