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From: jeff@alberta.UUCP (C. J. Sampson)
Newsgroups: net.micro.16k,net.micro.68k
Subject: Re: Corrigenda
Message-ID: <421@alberta.UUCP>
Date: Sun, 3-Mar-85 00:10:37 EST
Article-I.D.: alberta.421
Posted: Sun Mar  3 00:10:37 1985
Date-Received: Mon, 4-Mar-85 20:16:26 EST
References: <794@sjuvax.UUCP> <5025@utzoo.UUCP> <2342@nsc.UUCP> <952@watdcsu.UUCP> <2373@nsc.UUCP> <57@daisy.UUCP> <298@ssc-bee.UUCP>
Reply-To: jeff@alberta.UUCP (C. J. Sampson)
Followup-To: net.micro.16k
Organization: his Personal Computer
Lines: 27
Xref: watmath net.micro.16k:244 net.micro.68k:629

In article <298@ssc-bee.UUCP> eve@ssc-bee.UUCP (Michael Eve) writes:
>
>	Regarding how much memory is enough, consider a cpu sharing
>	ram with a video coprocessor. Let each video frame consist of
>	1000x1000 pixels with 3 color planes for each pixel. Each color
>	plane consists of 1 byte.  This gives you 3 Mb per frame! At this
>	rate, you can use memory pretty fast.  I think such resolution is
>	a realistic expectation in the near future (10 years). Whether
>	any existing integrated processor can update the frames fast
>	enough for useful video is another question.
>

  This sounds great.  However, consider the fact that it takes five to twenty
hours to generate each picture of this resoloution on a VAX 11/780 that has
no other processes running.  Now, who is going to be dumb enough to use a
32032 to do something like this?  If it's the occasional frame once a month,
I can see it.  But nobody's going to do a large number of frames like this on
a regualar basis.  Keep in mind that the 32032 is a MICROprocesser.  It's not
made for huge jobs.  However, if you insist on doing fifty or sixty frames,
I'm sure that the time it takes to dump a frame to disk (a few seconds, at
most) will be negligible compared to the CPU time (measured in *days*) that
it will take to generate the image.
=====================================================================
	Curt Sampson		ihnp4!alberta!jeff
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"It looked like something resembling white marble, which was probably
 what is was: something resembling white marble."