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Path: sserve!manuel.anu.edu.au!munnari.oz.au!spool.mu.edu!darwin.sura.net!mojo.eng.umd.edu!pandora.pix.com!stripes
From: stripes@pix.com (Josh Osborne)
Subject: Re: 16-colour X server?
Message-ID: <Bw25oD.A4H@pix.com>
Sender: news@pix.com (The News Subsystem)
Nntp-Posting-Host: pandora.pix.com
Organization: Pix Technologies -- The company with no adult supervision
References: <7656@skye.ed.ac.uk> <1992Oct13.015735.7298@ntuix.ntu.ac.sg>
Date: Tue, 13 Oct 1992 11:38:37 GMT
Lines: 39
In article <1992Oct13.015735.7298@ntuix.ntu.ac.sg> eoahmad@ntuix.ntu.ac.sg (Othman Ahmad) writes:
[...]
> Then it will be 8 times faster but you only have 2 colors, black and
>white. I used to think that 8-bit is too much but when I run the XFree86, it
>is so fast that there is no need to speed it up by 2 time. I'm only using
>a non cached 386 25 Mhz without 387.
Well mabie you have a faster video card, but I can tell the diffrence
between a 386/33 w/64k cache and 387 and a ET4000 running XFree86, and
a SparcIPX. Just run xtank a 3rd machine with the display attached to
the PC or IPX. Now for the money the PC is a great deal, but I could
use a faster X server...
> In fact 16-bit is the ultimate. There is no need to go any futher.
>The 24-bit and 32-bit DACs are wasteful because they do not take into account
>human visual perception.
In my PSYC100 class we were told that (most) people could distingush
between a picture with 16M colors and one with fewer colors, but not one
with more then 16M colors and one with 16M colors (it has been 5 years
for me, so I do not remember the details). 16M is more then 2**16, in
fact it is *very* close to 2**24 (2**23 is too small). If the study
is correct 24bit DACs are a waste for most people (but not all).
Of corse there is monitor quality. It may be my mind playing tricks on
my, but on a no-name monitor I couldn't tell teh diffrence between
32K colors and 64K colors, but on a NEC MultiSync 3D (same card, same
TIFF, same PC) I could.
> At least that is what TV textbooks say. Is there any recent work proving
>otherwise?
Well mabie that only applys to TV tubes then :-)
--
stripes@pix.com "Security for Unix is like
Josh_Osborne@Real_World,The Multitasking for MS-DOS"
"The dyslexic porgramer" - Kevin Lockwood
We all agree on the necessity of compromise. We just can't agree on
when it's necessary to compromise. - Larry Wall