Path: utzoo!utgpu!attcan!uunet!husc6!uwvax!dogie!uwmcsd1!ig!agate!ucbvax!ucsd!ucsdhub!jack!crash!pnet01!haitex
From: haitex@pnet01.cts.com (Wade Bickel)
Newsgroups: comp.sys.amiga
Subject: Re: FlickerFixers
Message-ID: <3269@crash.cts.com>
Date: 5 Aug 88 07:56:13 GMT
Sender: news@crash.cts.com
Organization: People-Net [pnet01], El Cajon CA
Lines: 48

jmdavis@ihlpm.ATT.COM (Davis) writes:
>
>Having priced flicker fixers at $550 I am wondering, "Isn't this
>a bit silly?" Reason being that the cause of flicker is the phosphor
>decaying before the scan comes around again to refresh it. The solution
>is to get a monitor with long persistence phosphors. Seems to me I can
>get such a monitor for about $550 or at least $900. Why $900, well
>flicker fixer plus monitor is about $900.
>
>What's wrong with the above arguement?
>

        It's all a matter of what you want to do.  With a long persistance
monitor you will get smearing durring amimation.  Our 3D glasses will not work
with either the FlickerFixer or Long Perstistance monitors.

        As I see it the problem is that the Amiga's refresh rate is too slow.
The reasons for this are obvious;  We live in a 60hz country.  In Europe
things are even worse with PAL, which runs at only 50hz (or is it 48?).

        The FlickerFixer is a half-azzed attempt to double buffer the display,
which I think is junk.   But I can understand their reasoning.  It does
elimate the flicker on interlaced images, and uses (I assume) only about 1/3rd
the memory it would have taken to do it right.  And of course, it works with
a multi-sync monitor at 76hz.  But I really don't like the way objects in
motion split, and especially the inablity to by-pass the thing.


        What I think C= should do is support a 76hz mode.  This would mean
that with a multi-sync monitor you would acchieve a 38hz flicker rate between
the short and long frames of interlaced images, which I doubt would be
perceptable in any but the worst of circumstances.  Of course this would push
the already tight bandwidth a bit more, so it would have to be studied,
perhaps only as an option for "Turbo" Amigas.


        Anyway, I'd like to see some kind of display system that I can work
with.


                                                                Thanks,


                                                                    Wade.

UUCP: {cbosgd, hplabs!hp-sdd, sdcsvax, nosc}!crash!pnet01!haitex
ARPA: crash!pnet01!haitex@nosc.mil
INET: haitex@pnet01.CTS.COM