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- Path: hp15.rbg.informatik.th-darmstadt.de!niels
- From: niels@rbg.informatik.th-darmstadt.de (Niels Knoop)
- Newsgroups: comp.sys.amiga.graphics,comp.sys.amiga.hardware
- Subject: Re: Cybervision 16 and 24 bit modes
- Followup-To: comp.sys.amiga.graphics,comp.sys.amiga.hardware
- Date: 1 Mar 1996 13:25:44 GMT
- Organization: Technische Hochschule Darmstadt
- Message-ID: <4h6tso$10et@rs18.hrz.th-darmstadt.de>
- References: <1512.6632T1131T2194@guest.arnes.si>
- NNTP-Posting-Host: hp15.rbg.informatik.th-darmstadt.de
- X-Newsreader: TIN [version 1.2 PL2]
-
- Jernej Pecjak (uljff3@guest.arnes.si) wrote:
-
- > And then again: I am only in 1/5 of the SSpeed module I found on
- > Aminet. Can this be because I have a 030/25 and not 060/50.
-
- Joker. :-) If this was a serious question, the answer is YES. Period.
-
- > Draw pixel from my machine is 29000 pixels/sec (like Picasso :-((()
-
- That's no surprise. Functions like drawing pixels, circles etc. are
- performed by the CPU and therefore aren't accelerated by the Cybervision.
- It should still be faster than on a Picasso with 030/25 because of the
- faster Zorro-III bus, but not too much. Even high-end boards with VRAM,
- if they should come out, couldn't improve this.
-
- But don't worry: These functions are nearly completley irrelevant in
- normal use. What really counts is the speed of window functions (high
- due to Cybergraphics), data transfer (high due to Zorro-III bus) and
- scrolling (high due to the fast blitter).
-
- > and the test module is 155000 from cyberstorm.
-
- Where did you get these values? I would be interested in them
- since I plan purchasing a Cyberstorm Mk. II board. This pixel
- value isn't too impressing since I get the same with a GVP
- 040-40 board, but again it's other values which are important.
-
- > I find 24 bit modes VERY SLOW. Does anybody experience this phenomen?
-
- Of course. In this modes, four times the amount of data has to be
- manipulated and displayed. So what did you expect your board to
- perform like? Four times faster?
-
- (Ooops! On reading though this article I have discovered that I sound
- pretty arrogant. However, I'm not in the mood of writing it again.
- Just don't take it personally, o.k.? ;-)
-
- --
- | Ciao! /// Niels Knoop /// e-mail:
- niels@rbg.informatik.th-darmstadt.de |
- --
-