RealTime Images

[wysota]

I wouldn't use Graphics View if all you want is to render images. It should be faster if you do it by subclassing QWidget or setting a pixmap on a QLabel object. Graphics View does some additional transformations that you don't need so it only creates overhead.

[soxs060389]

to 3) connect the update() slot to a custom signal, which you emit right after you set your image in the QGraphics*

to 2) not bad I'd say, wait for Waysotas answer

to 3) I wanted to point you to QTimer, to actually meassure how much time takes to actually show the pic (maybe 1000x iterations if value is very small)

to 4) It depends on what you need, any QWidget based (or even a QWidget itself) is enough, thisdepends all on your needs

@Waysota: I am not sure which one is faster. OpenGL is hardware accelerated while QLabel will us a software renderer. But you probably know more about that subject so I'll just leave it with that.

Yours sincerely

[wysota]

@Waysota: I am not sure which one is faster. OpenGL is hardware accelerated while QLabel will us a software renderer. But you probably know more about that subject so I'll just leave it with that.

I was merely pointing out not to use GV. If you use QGLWidget or QWidget as your base class, that's another issue.