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From: cmcmanis%pepper@Sun.COM (Chuck McManis)
Newsgroups: comp.sys.amiga
Subject: Re: Another A2000 Question (LP monitor smear?)
Message-ID: <30136@sun.uucp>
Date: Tue, 6-Oct-87 14:05:54 EDT
Article-I.D.: sun.30136
Posted: Tue Oct  6 14:05:54 1987
Date-Received: Fri, 9-Oct-87 06:44:12 EDT
References: <177@tahoma.ARPA>
Sender: news@sun.uucp
Reply-To: cmcmanis@sun.UUCP (Chuck McManis)
Organization: Sun Microsystems, Mountain View
Lines: 25
Keywords: LP, long-persistence, smearing?

In article <177@tahoma.ARPA> bakken@tahoma.ARPA (Dave Bakken) writes:
>
>Another A2000 question:  Is smearing a problem with a long-persistence 
>monitor on the Amiga (both with the stock Amiga and with a 68020/68881 board)? 
>Would it be noticable only with the fastest of animations, or most/all
>animations and even routine operations with a WYSISYG word processor or a
>paint program?

I've seen an Amiga connected to a Sun-2 color monitor (19" LP, 15Khz scan rate)
and the smearing was not a problem. Things you could do included zinging the
mouse around in a circle fast enought to make it look like there were 20
mice arranged in a circle (talk about your virtual sprites!). This however
is not the point, the point is that for things like Draw Plus in interlace 
mode there is practically no flicker (white and black still flicker but 
just about everything else doesn't.) And of course animations tend to smear
(although just text movement isn't to bad if it isn't all green). The point
is that for interlace work the LP monitor is fine, and for animation stuff
you want the regular persistence monitor. So you really want *two* monitors,
one for animations and one for hi-res work. (Or you want a frame buffer
the deinterlaces the video for you.).


--Chuck McManis
uucp: {anywhere}!sun!cmcmanis   BIX: cmcmanis  ARPAnet: cmcmanis@sun.com
These opinions are my own and no one elses, but you knew that didn't you.