Re: Apple IIgs Color Dither Problem

[Eric Rucker <bhtooefr@gmail.com>]

On Sep 18, 1:56 am, magnusfalkirk <dean.pha...@gmail.com> wrote:
> Which Apple IIGS emulator are you running that you're getting
> dithering on the LCD screen from? At work I'm running KEGS 32 on a PC
> running Windows XP with a 17 inch LCD and I don't have any dithering
> problems. At home I'm running Sweet16 on a Mac Mini running OS X
> 10.4.11 with a 19 inch LCD and have no dithering problem there either
> and that includes when I set Sweet16 to Full Screen Mode so it looks
> like I'm actually using my real GS hooked up to the LCD monitor.
>
> Dean

This is a really bad way to do the comparison, but...

http://bhtooefr.ath.cx/images/gsrescompare.PNG and
http://bhtooefr.ath.cx/images/gsrescompare2.PNG

In both, the bottom image is what you see on an emulator.

The top image is similar to what you see on a real GS, although in
reality, it's about halfway in between the two. (The comparison was
taking the image, scaling it to 320x200 using a Lanczos filter, then
back to 640x400.)