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- From: dream!Ray_Hines@bikini.cis.ufl.edu (Ray Hines)
- Subject: Re: TECH: Amiga VR?
- Message-ID: <1992Dec21.095458.29100@u.washington.edu>
- Originator: hlab@stein.u.washington.edu
- Sender: news@u.washington.edu (USENET News System)
- Organization: DreamStates BBS & CyberNet HQ in G'ville, FL 1-904-331-4317
- Date: Mon, 21 Dec 1992 06:14:54 GMT
- Approved: cyberoid@milton.u.washington.edu
- Lines: 75
-
-
-
- In a message dated Sun 20 Dec 92 6:33, Dstampe@psych.toronto.edu (dave
- Sta wrote:
-
- DS> Not true. A 486/50 with ATI VGA Wonder card, 80 meg disk, 2 meg RAM,
- DS> etc., can be got for US$1600 these days. No video accelerators are
-
- Your 486/50 with 80 megs and 2 megs RAM is not enough for VR work.
- That's just a low ball figure which is useless, really.
-
- You should check out the new Amiga 4000s which have the 68040 cpus, 64
- bit video bus, pure 32 bit environment, standard 6 megs of RAM (2 of
- it being CHIP (like video) RAM) and new AGA graphics.
-
- DS> Problem with the Amiga is that the segregated chip bus, costom video
- DS> hardware, etc. that made its name 6 years ago (a century in computer
- DS> are now crippling it. It takes too long to access video memory, and
- DS> too long to program the chip registers to do really fast poly drawing
-
- I'm not sure what you are getting at, but the custom chips (not custom
- video hardware - there is no such thing - this makes me wonder if you
- have even TOUCHED an Amiga) actually make the Amiga faster with custom
- chips to do their thing and let the main cpu do it's own thing.
- That's why you see, say a lowly Amiga 500 with a 68000 7mhz cpu do
- some graphics just as fast as your basic 486 system.
-
- I recently went to an Amiga dealer in Tampa to check out the new Amiga
- 4000s -- seeing is believing, you know. :) I was floored. They had a
- full 256 color animation of flying through the grand canyon. Those
- graphics were more than adequate for current VR applications if
- desired. It was so fast it was all just a blur, really. Very
- realistic. Over 40 fps. Then we were shown another animation, this
- time in 256,000 colors (can't tell the difference between it and 24
- bit graphics) and over 20 fps. It was of two space ships flying and
- then rolling off away from a light source. The detail was incredible
- and animation very smooth.
-
- DS> hardware. The other problem is the flakiness of the Amiga OS--
- DS> peoplewould rather build their own tools or use those available than
- DS> have the machine crash once an hour.
-
- Many people will tell you that the OS (2.1 up to 3.0) is very stable
- and much more so than Windows or OS/2 on the IBM platform. It's
- really how YOU program in it. If you don't follow programming
- guidelines, then naturally, in any environment, your programs will
- crash.
-
- DS> Again, not really true. The cards I've seen are about $800, and
- DS> painfullyin video access. You're virtually plugging an entire PC
- DS> memory and
-
- Not true. You can buy a 386 card for $300 in the right places. 486
- cards for $900.
-
- I dunno, but from your article, I can tell you have not either really
- touched an Amiga or at least seen the newer models to do it any
- justice.
-
- W Industries uses Amiga 3000s equipped with 68040 boards and Texas
- Instruments graphic cards to drive their Virtuality systems. They
- certainly wouldn't use them if they had all the so called problems you
- described above. This is a commerical venture -- they wouldn't dare
- use crappy equipment. I think the Amiga has proven itself in the VR
- area and will go even further with the new A4000s.
-
-
- -- Via DLG Pro v0.995
-
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