did you divide by 10? On Wed, Jan 15, 2014 at 7:08 PM, wrote: > its wrong. > > look at the code comments. it draws the same thing twice. one time, > on to a offscreen image and one time on screen (a layer) directly. > > they should be identical, they are not. > > comment out the 2nd one to see how its supposed to look. > > it should be just a blue rectangle overlapping a red one (one > pixel shifted apart). > > -- > cinap > >