I have a huge memory bitmap that I am rendering an OpenGl image to. I save this bitmap to a file then I recall it up. After I have it back into a Device Context I then want to be able to shrink it down and save it.
I don't want to use StretchBlt(). It doesn't produce the quality I need. What I'm trying to simulate is what powerpoint does with it's zoom feature. I can open the image in powerpoint then scale it down using the zoom feature to say 33% and it actually improves in quality.
Does anyone know how I can simulate this effect?