home *** CD-ROM | disk | FTP | other *** search
- Path: dispatch.news.demon.net!demon!alladin.demon.co.uk
- From: ajackson@alladin.demon.co.uk (Action Jackson)
- Newsgroups: comp.sys.amiga.graphics,comp.sys.amiga.hardware
- Subject: Re: Cybervision 16 and 24 bit modes
- Date: Wed, 06 Mar 1996 16:51:01 GMT
- Message-ID: <826131153.21564@alladin.demon.co.uk>
- References: <4h6tso$10et@rs18.hrz.th-darmstadt.de> <1129.6638T638T1146@ibm.net>
- NNTP-Posting-Host: alladin.demon.co.uk
- X-NNTP-Posting-Host: alladin.demon.co.uk
- X-Newsreader: Forte Free Agent 1.0.82
-
- geohei@ibm.net (Georges Heinesch) wrote:
-
- >In a message of 01-Mar-96 14:25:44, Niels Knoop wrote:
-
- >>> Draw pixel from my machine is 29000 pixels/sec (like Picasso :-((()
-
- > NK> That's no surprise. Functions like drawing pixels, circles etc. are
- > NK> performed by the CPU and therefore aren't accelerated by the Cybervision.
- > NK> It should still be faster than on a Picasso with 030/25 because of the
- > NK> faster Zorro-III bus, but not too much. Even high-end boards with VRAM,
- > NK> if they should come out, couldn't improve this.
-
- > NK> But don't worry: These functions are nearly completley irrelevant in
- > NK> normal use. What really counts is the speed of window functions (high
- > NK> due to Cybergraphics), data transfer (high due to Zorro-III bus) and
- > NK> scrolling (high due to the fast blitter).
-
- >So if got this right ... the CV64/4 can't display 1024x768 16/24 Bit
- >without a trembling right screen on an A3000/25 (unaccelerated). I have
- >this effect with ImageFX and Photogenics, making these modi unusable.
-
- >Cu
-
- Wrong! Something is definetly wrong. The Screen resolution should not
- effect the quality of Display. May be you have some interferance
- problem. Try the CV64 in a different slot.
-
- One thing has a high chance of causing interferace is the Monitor
- lead. The higher the frequency the more chances of interferance. My
- idek 17" (sorry to bloat) monitor cable has ferrite loops in the
- cable. This blocks out the interferance. The ones in my office dont
- and they sometimes have trouble with interferance.
-
-
- -------------------------------------------------------------
- A4000/40 2+16 Mb RAM, Z3 fastlane + 8Mb RAM, 540Mb HD,
- 128 Mb Optical, NEC CD Player, CyberVision 64 - 4Mb, Ethernet
- GVP Phone Pak II, G-Lock Genlock, Did I forget anything ;-)
- A1000+A2000+A500+CDTV+A3000+A1200+A4000/40... A4000T/PPC next
- -------------------------------------------------------------
-
-