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- Newsgroups: comp.sys.ibm.pc.hardware
- Path: sparky!uunet!spool.mu.edu!agate!ames!sgi!twilight!zola!glass.esd.sgi.com!donl
- From: donl@glass.esd.sgi.com (donl mathis)
- Subject: Re: ATI Ultra Pro: Good or SUCKS????
- Message-ID: <vbeli6k@zola.esd.sgi.com>
- Sender: news@zola.esd.sgi.com (Net News)
- Reply-To: donl@glass.esd.sgi.com (donl mathis)
- Organization: Silicon Graphics, Inc.
- References: <_ah3djk@rpi.edu> <1993Jan20.174055.23059@VFL.Paramax.COM> <v4it79g@zola.esd.sgi.com> <414@snll-arpagw.llnl.gov>
- Date: Tue, 26 Jan 93 03:24:19 GMT
- Lines: 45
-
-
- In article <414@snll-arpagw.llnl.gov>, hwstock@snll-arpagw.llnl.gov
- (stockman harlan w) writes:
-
- |> I have an IRIS in my labs and an ATI on my 486, which communicates with
- |> the SGI via X11/SVR4. For X11 stuff, the ATI IS faster than the IRIS--
- |> at least, IRIS programs redirected to my display run faster than on the
- |> IRIS itself.
-
- Well, which Iris? There are various flavors. Now, granted, they start
- to get expensive when compared to PC's, but the point is that there
- *are* uses for which even a very fast 2D accelerator won't do. Drawing
- lines, filling, and doing bit-blts is not such a tough thing to do
- anymore, and these PC graphics cards do very nicely. An Iris is made
- for interactive 3D. If I have to move it, scale it, wiggle it, or spin
- it, I think I'd rather draw it on my Iris.
-
- |> It is interesting that in BYTE a few months back, a Compaq 486/50 with a
- |> Matrox display list processor scored substantially better on CAD
- |> benchmarks than a more expensive IRIS. That suggests to me that SGI just
- |> hasn't gone after the CAD market with any enthusiasm.
-
- I'm not a marketing type, I don't know any marketing types, and I don't
- want to be a marketing type. I also don't speak for SGI, but I *do*
- have a point of view. :)
-
- One of the problems that SGI has faced is that PC-oriented developers
- have never had interactive 3D available to them, so they don't really
- know how valuable it is. Things are changing, but it will take time.
- In recent history, 3D in the CAD world seemed to mean that you could
- *represent* a three dimensional object, and given a sufficient amount
- of patient, look it from different angles. Our founder says "If it
- don't move, it ain't 3D!", and that's what we do. 3D CAD to us would
- be the ability to just yank the drawn object with the mouse and spin it
- around to work on the backside, for example. Or to finish up the
- interior and add the lighting, and then mouse your way into the house
- and take a look around on a little tour. Things things are happening,
- but slowly. What the Iris philosophy gives you is an orientation for
- graphics hardware that lets you get all those points transformed and
- all those polygons shaded as quickly as possible. Off-load these
- tasks to a processor that is specially made for them, and get them
- done in parallel with the rest of the computing.
-
- - donl mathis at Silicon Graphics Computer Systems, Mountain View, CA
- donl@sgi.com
-