[Kde-games-devel] QGraphicsScene performance

[Fela Winkelmolen]

Hi, thanks for all the feedback,

I've attached the simple test i did, just click to make a ball appear (scene.h 
contains some constants to change the basic "settings"). At 13 balls it 
starts to use 100% cpu on my one year old laptop (it was 10 last time because 
I was using ssh for my kde4 account... realized it only when running top, and 
yes half of the cpu is used by X)

Setting "export QT_FLUSH_PAINT=1" the result is what you expect it to be. 
I would also think that painting everything manually (like int the cannongame 
Qt tutorial, I hope you understand what I mean) you get the same performance, 
or am I missing something? What about using KGameCanvas?
I mostly discarted openGL/SDL because I thought kdegames don't want those 
dependencies, and I want to write this game as a starting point to contribute 
to KDE, to learn the KDE technologies and to get to know the community, etc.

bye,
- Fela
-- 
Hello! I'm a signature virus. Copy me to your signature, ^^ pleeeeease!!!!!!
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