hello, i have some problems with using opacity in qgraphicsitem.
I have two item added to my scene. When i'mtrying to change opacity of top one, it gives me funny colors.
http://img837.imageshack.us/i/image11y.jpg/
Here you have example. On the left you have bottom layer, in te middle top one and on the right snapshot of the result. Opacity of the top is set to 0.5.
Any ideas?