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From: watters@penguin.cis.ohio-state.edu (david r watters)
Newsgroups: comp.sys.atari.st
Subject: Re: Pictures on the ST (Amiga's side!)
Message-ID: <81847@tut.cis.ohio-state.edu>
Date: 3 Jul 90 03:55:41 GMT
References: <4b28c24a.20b6d@apollo.HP.COM> <196@next.com> <672.26899914@desire.wright.edu> <1990Jul2.071658.16558@math.lsa.umich.edu>
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In article <1990Jul2.071658.16558@math.lsa.umich.edu> hyc@math.lsa.umich.edu (Howard Chu) writes:
>Well, just to add more deadweight to the dying discussion... I've just
>finished porting Fractint 12 from MSDOS to the ST, and along the way I
>added some "new" video modes as well. I added 4-color grayscale to the

This seems pretty impressive from the discription.

>flicker... But hey, Amigans settle for a megapixel display that updates at
>15 hertz, 30 hertz is a lot better. Sending 4 complete screens at 15 hertz

This is incorrect.  The Amiga monitors refresh at 60Hz, all the time.
The screens with Xx400 and greater are interlaced which gives an apparent
refresh rate of 30Hz.  1/60th for each of 2 fields making 1 full image
refresh at 1/30th.  
The 1200x400 and greater mode still refreshes at 30Hz, with each pixel having
half as much data letting you use 4 colors.

15Hz would be unusable!!!

>  -- Howard Chu @ University of Michigan{

watters@cis.ohio-state.edu