Is it possible to force parallel shader effect on 1 image ?

Feb 3, 2014 at 8:21 AM
I have wpf application showing very large image with pixel shader effect (contrast adjust) on it. works very nice until I scale up the image (which creates very much pixels to render).

I noticed that if I'm cropping the image to smaller parts and put in ItemsControl, performance is boost up because GPU runs the effect in parallel.

So, my question is if I can force GPU run in parallel also for 1 image ?

I'm using DirectX 9. ( since my app should run on XP as well.