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- Path: news.mcs.net!not-for-mail
- From: trixter@MCS.COM (Trixter / Hornet)
- Newsgroups: comp.sys.amiga.programmer,comp.sys.amiga.games,alt.sys.amiga.demos,in,comp.sys.amiga.advocacy,comp.sys.amiga.hardware,comp.sys.amiga.misc,comp.sys.amiga.graphics
- Subject: Re: Possible loss of the Copper (was Re: AB3D II beats Quake....)
- Date: 15 Apr 1996 23:11:11 -0500
- Organization: /usr/lib/news/organi[sz]ation
- Message-ID: <4kv6kv$dpo@Venus.mcs.com>
- References: <4iu7hb$utt@coranto.ucs.mun.ca> <4jsj9c$i7q@sunsystem5.informatik.tu-muenchen.de> <4jvtft$70o@harbinger.cc.monash.edu.au> <4km0r8$irf@sunsystem5.informatik.tu-muenchen.de>
- NNTP-Posting-Host: venus.mcs.com
-
- In article <4km0r8$irf@sunsystem5.informatik.tu-muenchen.de>,
- Juergen Fischer <fischerj@Informatik.TU-Muenchen.DE> wrote:
- >: No, I bet it's closer to 75Hz. The "start of display memory" is sampled
- >: at every vsync, so that's how often it "scrolls".
- >
- >: Juergen, have you ever even SEEN a linux PC running X?
- >
- >Yes! The PC linux I saw was never ever doing any movement near to
- >75 Hz (neither scroll nor move window, whatever megablitter it
- >contains). How should it if mouse events come below 35hz ?
-
- While this is a good point, things update on the screen
- independantly of the mouse. And Bus mice on the PC operate off of a
- hardware interrupt, and are much faster than the crappy serial mice
- that you're referring to. Of course, not everyone has a bus mouse,
- but I do. :-)
-
- >I never ever have seen any other computer (hp, sgi(whoa!), pc)
- >doing virtual screen/opaque move near to something like 50Hz
- >(Exept Amiga. And maybe the ST, don't remember. What about MACs ?)
-
- The Macintosh's video structure is, in general, WAY too slow for
- something like this. Although it does have a hardware mouse
- pointer, so it gives the effect of a fast graphics system.
-
- >The X3.something you refer to must do some real hard hacks on
- >PC if it should work 70Hz (but then serial mice are reported
- >to be too slow for that!)
-
- See my Bus mouse info above.
- --
- Jim Leonard (Trixter / Hornet) Email: trixter@mcs.com
- *THE* PC Demo WWW page: http://www.cdrom.com/pub/demos/hornet/html/demos.html
- The 8086 Compo is OVER! Results at http://www.cdrom.com/pub/demos/hornet/8086
- Make A Computer easy enough for a fool to use, and only fools will use it!
-