home *** CD-ROM | disk | FTP | other *** search
- Xref: sparky comp.graphics:9040 alt.graphics.pixutils:1997 comp.os.ms-windows.misc:2231
- Newsgroups: comp.graphics,alt.graphics.pixutils,comp.os.ms-windows.misc
- Path: sparky!uunet!munnari.oz.au!news.hawaii.edu!galileo!ressler
- From: ressler@galileo.ifa.hawaii.edu (Mike "IR" Ressler)
- Subject: Re: Speedstar 24x
- Message-ID: <1992Aug21.061452.25921@news.Hawaii.Edu>
- Sender: root@news.Hawaii.Edu (News Service)
- Nntp-Posting-Host: galileo.ifa.hawaii.edu
- Organization: UH IfA and NASA Infrared Telescope Facility
- References: <1992Aug20.075613.29666@u.washington.edu> <1992Aug20.135538.21312@nntpd2.cxo.dec.com>
- Date: Fri, 21 Aug 1992 06:14:52 GMT
- Lines: 28
-
- In article <1992Aug20.135538.21312@nntpd2.cxo.dec.com> j_manning@csc32.enet.dec.com (John Manning) writes:
- >
- >> Any other problems/considerations, that would make me opt for
- >>the straight 24 instead? The only real prob I have now is that I know
- >>of no DOS viewer which supports the cool modes of the 24x, whereas I
- >>know that Cshow has a driver out for the straigt 24....
- >
- >VPIC 4.8C works with it just great using the VESA modes. These modes work
- >up to 1024x768x256. Since GIF is 8 bit anyway, there is no need for at
- >GIF viewer to support the higher color modes.
-
- A major nit: GIFs are 8-bit, but the SVGA modes (256-color) on these cards
- are 6-bit - 256 out of 256K colors, not 256 out of 16M colors. GIFs on a
- 640x480x24-bit screen look a little better than on a 640x480x256-col
- screen. If you don't believe me, write a program which displays half the
- image in 6-bit per gun resolution (simulating a standard SVGA screen), and
- the other half in the full 8-bits per gun. The difference becomes
- especially apparent when you start blowing up the image.
-
- Summary: for GIFs on a PC, Truecolor > SVGA > Hicolor.
-
- Mike
-
- --
- Mike Ressler - Infrared Photon Jockey ressler@galileo.ifa.hawaii.edu
- - astronomer who favors changing "Big Bang" to "Horrendous Space Kablooie"
- Some people like music they can brush their teeth to in the morning.
- Me? I like music I can brush my teeth with ...
-