Paintstormstudio.com

Recently I'm doing some simple coding in opengl.
I remember PPS had tendency to use lots of battery power, and gpu, even if user was doing nothing.
I was wondering if some saving could be done by using partial screen redraws? AFAIK on way to do this (in opengl) is to use FBO (writing 'sceen grab' to user defined buffer, and output this instead of recalculating whole scene - if nothing changed). Maybe this could increase the performance/ energy efficiency when drawing with PSS?

I remember PPS had tendency to use lots of battery power, and gpu, even if user was doing nothing.

If you switch to another window Paintstorm "sleeps"

Maybe it would be beneficial to do this, when user is not performing any drawing (while PSS window still is in focus). Or redraw only part of image, that was being drawn on... If this improved battery life 30%-40% on mobile devices, it would be big +