I'm trying to make a showmanship edit but no matter what program I use it becomes a huge blurry mess before I'm done with it .-. First I tried Corel Painter X3, it looked fine while I was rotating it but when I choose to commit to transformation it goes blurry. Next I tried Autodesk Sketchbook Pro and it just blurred the entire picture before I even tried rotating anything. Then I tried gimp, it blurs when I rotate. I'm guessing this is some anti alias thing but I don't know how to make it stop .-.
It does have something to do with anti aliasing and unfortunately you can't do much about it >_< The same thing happens with Photoshop, and the way I try to counteract it is to use a sharpen filter to try and get some of that pixelation back, along with manual erasing with a pixel brush to get rid of some of the softer edges.
Is it a general setting (the "Nearest Neighbor (preserve edges)" setting) or just the little tick boxes when you select? I never have those selected when they're available, but that only applies to when you use the selection/slice/etc tools. Even if I don't select anything and rotate the whole layer, it still gets the aliasing on the edges of the tack/horse/pixels.
It drives me nuts because I would LOVE to learn how to do pixel art but my patience can't take it haha