slowness QGraphicsView setScene

[wysota]

It is slow.

So what's the backtrace for?

Anyway, you can make things faster if you disable indexing in the scene. Even in the backtrace you can see there is BSP algorithm involved there. On the other hand bsp indexing shouldn't happen when you set the scene on a view but rather when you add items to the scene...unless GV delays building the index until you access some method that might actually need it. Is there something specific you are doing before calling setScene()?