HDTenEightyP/NetNews huggingface dataset:
Newsgroups: comp.graphics
Subject: PCVR - Issue 5
From: gradecki@rodeo.uwyo.edu (Joseph D. Gradecki)
Date: 30 Sep 92 09:58:50 MST
Distribution: comp.graphics,world
Organization: University of Wyoming


                                
             THE FIFTH ISSUE OF PCVR IS READY FOR RELEASE!!!




**  This issue of PCVR is dedicated to head tracking technology.  We

discuss current technology and the construction of.....


		A BOOM HEAD TRACKER FOR UNDER $10.00


**  In addition, we look at inexpensive optics for our head mounted

display project.

  
**  New to the fifth issue is a column by Steve and Shawn Casey titled

                        "Virtual Imagination"

  These gentlemen explore the edges of Virtual Reality and its application.


**  A new column called WORKING WITH REND386, follows the creation of a

Virtual Racquetball game designed in Rend386.  Learn how to use the 

latest version of this VR rendering system.


**  The GRAPHICS column explores 3D object rotation.

----------------------------------------------------------------------------

PCVR is a bi-monthly magazine dedicated to the Homebrew Virtual Reality

experimenter using the IBM Personal Computer.


Subscriptions (starting with issue 5) are:

			$26.00 US/Canada
			$38.00 Overseas


All back issues are available:

Issues one and two:	$3.00 US/Canada
			$5.00 Overseas

Issues three and four:	$4.50 US/Canada
			$6.50 Overseas



We accept check, money order, Visa, and Mastercard.

Our Address is:		PCVR
			1706 Sherman Hill RD. #A
			Laramie, Wyoming  82070


FOR VISA/MC ORDERS: USE OUR FAX MACHINE: (307) 742 - 7675     (24 hours)
Newsgroups: comp.graphics
From: IMAGING.CLUB@OFFICE.WANG.COM ("Imaging Club")
Subject: Re: Wang OPEN/image document imaging for AIX starts shipments
Organization: Mail to News Gateway at Wang Labs
Date: 06 Oct 92 13:32:46 EST

Regarding that posting about Wang on comp.graphics which you may have
noticed, we can confirm that we are now in volume shipping of our new
Wang client-server RS/6000-based document imaging.  Please feel free to
send in any questions to our worldwide Imaging Club network, and I'll
broadcast them.

----------------------Michael.Willett@OFFICE.Wang.com-------------------

The Wang Integrated Imaging System (recently ranked as the number one
document imaging system by Computerworld) has been ported to AIX, with
equivalent or better functionality, and named OPEN/image for AIX.
Customer shipments began in September.

While "many vendors have been mimicking WIIS...., Wang has stayed ahead
by adding color and gray-scale support.  Wang is the only major
document imaging vendor to have achieved this," said Rich Barrett, manager
of the client/server component of the product.   The development group
also significantly improved the speed of black and white images.

Full information and demonstrations are now available from any
Wang office or Wang imaging business partner worldwide.
Newsgroups: comp.graphics
From: cdiel@nmsu.edu (Christopher A Diel)
Subject: Need info on Cricket Paint
Organization: NMSU Computer Science
Distribution: comp
Date: Sun, 4 Oct 1992 18:15:33 GMT



I'm not sure if this is an appropriate group to post this, so I will
be posting in several different places.  I would like some information
on CA-Cricket Paint for Windows.  My fiance and I are wanting a good
paint program and this seemed like it fit the bill.  I think it is a
relatively new program and there is another program that goes with it
called CA-Cricket Image.  Paint seemed relatively flexible and one of
the best programs I have seen run under Windows.  There are all sorts
of things Paint can do, but I'm wondering if it is anything special
compared to other paint programs.  Image basically takes care of
different file formats as well as JPEG image compression as well as
being able to split pictures into its component colors.  Basically
Paint is used for changing parts of the picture where as Image works
with the whole picture.  One or the other of them works very will with
image manipulation, (I think Paint) I'm not sure if Image is worth it,
and I would like to know if Paint is worth it.

I'd like some information on this as soon as possible because right
now there is an introductory price of 99.95 on both packages.  In 6
weeks or so, the price is supposed to go up to like $600.00 for Paint
and $300 or $400 for Image.  We need some sort of very flexible
painting program that we can produce professional pictures.  Is anyone
familiar with these programs enough to comment on their usefulness?
Also, is there anyone out there with options for a better package for
the money?

Thanks in advance,

Chris


cdiel@dante.nmsu.edu
shade@rever.nmsu.edu
--




           For seven years I dwelt in the loose palace of exile
            Playing strange games with the girls of the island.
                  Now I have come again to the land of 
                the fair, and the strong, and the wise.
                Brothers and Sisters of the pale forest, 
                          Children of night,
                 Who among you will run with the hunt?
              Now, Night arrives with her purple legion,
             Retire now to your tents and to your dreams.
               Tomorrow we enter the town of my birth.
                        I want to be ready.
                                                 -Morrison
                                                 (of course)
From: kchen@sinkhole.unf.edu (Kuei-Chun Chen)
Newsgroups: comp.graphics
Subject: Image Editing Packages on UNIX
Date: 2 Oct 92 19:19:03 GMT
Organization: Florida Publishing Co., Jacksonville

Is there any image editing package on UNIX (e.g., equivalent to Adobe
Photoshop on Macintosh).   TIFF and EPS file formats are preferred.
Please reply by E-mail, and I'll post a summary.

-- 
Ken Chen <kchen@sinkhole.unf.edu>
Florida Publishing Co.
Newsgroups: comp.graphics,comp.sys.sgi
From: pang@Xenon.Stanford.EDU (Swee-Chee Pang)
Subject: Video Output Capture Box
Originator: pang@Xenon.Stanford.EDU
Organization: Computer Science Department, Stanford University.
Date: Mon, 28 Sep 1992 09:03:10 GMT

We would like to be able to capture the graphics output (high resolution)
from the SGI workstations (and HPs etc if possible) and be able to super-
impose real video on top of that output before displaying it on a big screen
(or some such).  Currently we know of a box by the compnay called RGB..
but the resolution of the particular box we got from them wasn't that great.
Any suggestions, help?
I will summarise.

--
Daneel Pang
From: hedley@metro (Mark Hedley)
Newsgroups: comp.graphics
Subject: Re: colour clustering for 8 bit display
Date: 1 Oct 92 00:13:40 GMT
Organization: Sydney University Computing Service, Sydney, NSW, Australia

From article <1acdekINN4r4@network.ucsd.edu>, by spl@alex.uucp (Steve Lamont):
> In article <1992Sep30.055627.20284@ucc.su.OZ.AU> hedley@ee.su.oz.au () writes:
>>Sorry if this is an FAQ, but its not in the FAQ file that I have.
> 
> You need a new FAQ. :-)

Could some kind soul send me a copy of the current FAQ.

Thanks in advance,

Mark Hedley
hedley@ee.su.oz.au
Newsgroups: comp.graphics
From: ileicht@jarthur.claremont.edu (Spiff)
Subject: COlor scanning on a B&W scanner ??
Organization: Harvey Mudd College, Claremont, CA 91711
Date: Sun, 4 Oct 1992 06:17:02 GMT

I used a black and white video camera with color filters to get
color digitizations a few years ago. The technique was to take
the picture with a red, green, and blue filter on then let the
software map the colors.

I have a firend with a HP scanjet + and an IBM. Is there any equivalence
of this for scanners? 

Thanks..


Newsgroups: comp.graphics,comp.compression
From: nino@vmars.tuwien.ac.at (Marinos Yannikos)
Subject: Re: raw RGB bytes from GIF file ??
Organization: TU Wien, Vienna, Austria
Date: Mon, 5 Oct 1992 16:04:19 GMT

frank@informatik.uni-wuerzburg.de (Stefan Frank (sf)) writes:
: From article <1alg7kINN3l0@uwm.edu>, by govind@point.cs.uwm.edu (Govind Seshadri):
: > 
: > Is there some source out there that will generate raw RGB bytes 
: > from an input GIF source file ?
: > I would be happy to receive any suggestions/pointers towards this.
: > 
: > Thanks much in advance.
: > 
: > Govind
: 
: Get the pbmplus package from Jef Poskanzer (from wuarchive.wustl.edu, 
: directory graphics/graphics/packages/pbmplus for example).
: 
: There are filters for converting m a n y picture formats including GIF
: using a general pixmap format. (It's a source only distribution, precompiled
: binaries for various boxes are available, too.)
:
There is also a pbm2raw.lzh (or similar) on atari.archive.umich.edu, so that
after using the pbmplus package to convert your .gif file to .pbm you can
convert the .pbm file to .raw (which is what I think you want, for 
photochrome probably...).

 Marinos Yannikos
From: harlan@Physik.TU-Muenchen.DE (Magnus Harlander)
Newsgroups: comp.graphics
Subject: 3D Parametric Plot Program or Library wanted
Keywords: 3D Parametric Plot Program or Library
Date: 28 Sep 92 22:26:31 GMT
Organization: Leibniz-Rechenzentrum, Muenchen (Germany)

Hi,

I'm looking for a program or a library that can produce 3D parametric plots 
x(t) y(t) z(t) for X11 and postscript.
Any ideas where to look and what for?

\Magnus

--
Magnus V. Harlander                   harlan@physik.tu-muenchen.de   
GeNUA mbH and Physics Dep. TUM         Tel: +49 (89) 714 3083
D-8000 Munich                               +49 (89) 3209-2192
         -----> Happy hacking with OPERATOR Beer. <-----
Xref: sparky comp.graphics:10107 comp.graphics.visualization:1408
From: djp@indigo.Eng.Sun.COM (Dan Petersen)
Newsgroups: comp.graphics,comp.graphics.visualization
Subject: PBM+
Date: 29 Sep 1992 16:30:50 GMT
Organization: Sun Microsystems, Mt. View, Ca.
NNTP-Posting-Host: indigo
Summary: Need info on PBM+

This is posted for a friend (well, a brother).  Please
reply to him.
-------------------------------------------------
We are looking for information on the image format conversion package PBM+.
We would like to know where we could get source code or any information on
the program.

PLEASE send email to the address given below.


			     Dennis Petersen
			    Software Engineer

 			Centera Information Systems
		       4865 Sterling Drive, Suite 250
			   Boulder, CO 80301-2349
			Phone: (303) 939-0200
			  FAX: (303) 939-0111
			email: dennis%centera@csn.org


Xref: sparky comp.graphics:10284 comp.graphics.visualization:1449
From: dvj@lab2.phys.lgu.spb.su (Vladimir J. Dmitriev)
Newsgroups: comp.graphics,comp.graphics.visualization
Subject: X-ray image of the 3d Julia
Keywords: visualization
Date: 6 Oct 92 09:00:13 GMT
Reply-To: dvj@lab2.phys.lgu.spb.su
Organization: University of St-Petersburg, 2-nd Physics Laboratory.

To recognize space structure of 3d function it is convenient to  draw
graph like X-ray photo (intensity of each pixel depends up on total density
integral along ray from light source to observer).
Nice example JULIA.GIF is available on alt.binaries.pictures.
This image shows 3d Julia set and was built by  epiGRAF package
for scientific graphics  and visualization on PC-s.
Format GIF87a     640x480 16 colors.
--
--
--
Newsgroups: comp.graphics
From: oberto@genes.icgeb.trieste.it (Jacques Oberto)
Subject: Re: Klingon and 3d objects ftp
Organization: ICGEB
Date: Mon, 28 Sep 1992 16:39:56 GMT

kpm8447@tesla.njit.edu writes:

>Rather than uuencode the klingon file, I thought it would be much better
>to find a place to create a ftp site for 3d objects.  I have gotten a few
>responses from people with 3d objects but I don't have an ftp site to put
>them to.  Can anyone allocate an area for 3d objects?
> - Kirk

That would be really nice indeed to have such a site: it is difficult
to e-mail my hacked versions to everybody.  I got a LOT of requests!
-- 
Jacques Oberto  <oberto@genes.icgeb.trieste.it>
Newsgroups: comp.graphics
From: leisner@eso.mc.xerox.com (Marty Leisner)
Subject: 8bits (256) or 24 bits of color information--opinions wanted
Organization: Xerox
Reply-To: leisner.henr801c@xerox.com
Date: Wed, 30 Sep 1992 12:55:42 PDT
X-Received: by usenet.pa.dec.com; id AA25150; Wed, 30 Sep 92 12:57:23 -0700
X-Received: by inet-gw-1.pa.dec.com; id AA09476; Wed, 30 Sep 92 12:56:45 -0700
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X-To: comp.graphics.usenet%decwrl.dec.com@eso.mc.xerox.com,
        imaginginterest.all_areas%xerox.com@eso.mc.xerox.com
X-Cc: leisner@eso.mc.xerox.com


I'm ignorant on this topic...I do know the standard sun 
sparcstation monitor is color mapped

How much gain is there using 24bit color over 8 bit color mapped techniques?

24 bit color naturally requires 3x the amount of data.

The images I can show on a sun are very impressive...how much is 24 bit color worth?

(This is a hard question...I just want opinions)


Marty    leisner.henr801c@xerox.com 
          Member of the League for Programming Freedom 
 The Feynman Problem Solving Algorithm:
 1) Write down the problem
 2) Think very hard
 3) Write down the answer     -- Murray Gell-mann
Newsgroups: comp.graphics,alt.binaries.pictures.d
From: linley@netcom.com (Bruce James Robrert Linley)
Subject: Re: 8-bit grayscale non-copyright images wanted.
Date: Sat, 26 Sep 92 06:37:02 GMT
Organization: NetCom- Cheaper than Compu$erve (isnt everything, though?)
Followup-To: /dev/null

In article <OZ.92Sep23164504@ursa.sis.yorku.ca> oz@ursa.sis.yorku.ca (Ozan Yigit) writes:
>I am looking for a collection of 8bit non-copyright grayscale
                                       ^^^^^^^^^^^^^
Non-Copyright? On USENET? Surely you jest!
-- 
Bruce James Robert Linley | /* You are not expected to understand this */
Comp Sci & Engr, UCLA     | - From the source code for the UNIX v6 Kernel
<linley@netcom.com>       | 
Newsgroups: comp.graphics
From: jonesbb@mentor.cc.purdue.edu (Brian R. Jones)
Subject: graphics archives
Organization: Purdue University Computing Center
Date: Sun, 4 Oct 1992 19:48:38 GMT

	I have been looking for a color picture of the Enterprise (Next
Generation version) for a startupscreen on my mac (12" monitor) and was
wondering where there are some good archives.  Any help would be
appreciated!
								--Brian

Newsgroups: comp.graphics
From: davidh@towers.rn.com (David Holland)
Subject: Re: X-rated GIFs
Organization: Small System Specialists
Date: Mon, 28 Sep 92 15:44:22 GMT

jk87377@cc.tut.fi (Juhana Kouhia) writes:


>In article <1992Sep27.151455.16962@towers.rn.com> davidh@towers.rn.com
>(David Holland) writes:
>>
>>As for the erotica groups... I THINK they're different. I've heard its
>>because they're not in directly machine readable form (ie uuencoded), 
>         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>>but I could be mistaken.

>Our machines *can* read the uuencoded format -- do you convert the
>uuencoded files by hand?
>What you mean by 'directly'?
>I would like to say that Gif format is more unreadable than uu-format.

What I meant was the uuencoded files need to be reconverted into thier
original form before they can be displayed by the usual image displaying
programs (Cshow, xv, xloadimage, etc...)

By directly I meant I've not seen a program yet that will uudecode on 
the fly.

>Juhana Kouhia
Xref: sparky comp.graphics:10148 comp.graphics.avs:779 comp.graphics.explorer:238 comp.graphics.animation:402 comp.graphics.visualization:1422
From: garza@hightop.hac.com (Carlos Garza)
Newsgroups: comp.graphics,comp.graphics.avs,comp.graphics.explorer,comp.graphics.animation,comp.graphics.visualization
Subject: Re: Testing of New KHOROS Modules for AVS!
Date: 30 Sep 92 20:24:09 GMT
Reply-To: garza@hightop.hac.com (Carlos Garza)
Organization: Hughes Aircraft Company


Does anyone know of any X windows drawing or annotation packages that allow
a parasite program to monitor the draw commands?  Or comes with source code so  I can modify it.  I preferably need something that stores the movements in CGM (Computer Graphics Metafile from the NITFS standards) format.  The drawing, or annotations will be done on an image so ideally there is an image visualization tool that has this capability.   I am open to any public domain and commercial products.  We are using X11R4 and Motif 1.1 on SPARCstations.

Also, does anyone know of any X Windows tools which allow a window to be displayed on two workstations simultaneously with control from both workstations?

You can send answers directly to my email address below.  If there is sufficient
interest, I can post a summary of the responses.  

Thanks...

-- 
==============================================================================
Carlos Garza    "I'd rather be playing music, but I don't want to starve."
Hughes Information Technology Co.  (Just won EOSDIS!!!)
e-mail: garza@mitchell.hac.com
 phone: (703) 759-1232
   fax: (703) 438-8430



Newsgroups: comp.graphics
From: k14r@alf.zfn.uni-bremen.de (Ingo Ronald Meier)
Subject: surface/surface intersection problems (new address)
Organization: Univ. Bremen, Informatik
Date: Mon, 28 Sep 1992 16:48:23 GMT


Second version with correct address!

Hi,

I'm working on algorithms and methods for surface/surface intersection of two
parametric surfaces defined over rectangular domains to use the results in my
diploma thesis. I have studied several articles, including 'A marching method
for parametric surface/surface intersection' from R.E. BARNHILL and S.N.KERSEY
(Computer Aided Geometric Design 7, 1990, 257-280), 'Surface algorithms using
bounds on derivatives' from D. FILIP, R. MAGEDSON, and R. MARKOT (Computer
Aided Geometric Design 3, 1986, 295-311), 'Surface/surface intersection
problems' from M.J. PRATT, A.D. GEISOW (Oxford University Press, 1986),
'Generation of continuous smooth curves resulting from operations on parametric
surface patches' from P.A. KOPARKAR and S.P. MUDUR (computer-aided design,
volume 18 number 4 may 1986).

Also I have coded an own method, but I think it is not very fast at the moment
and it needs to much memory.

To compare all existing methods I am looking for more information, papers and
articles.

Thanx in advance

-------------------------------------------------------------------
IRM

EMAIL: <k14r@alf.zfn.uni-bremen.de>
From: kipp@warp.asd.sgi.com (Kipp Hickman)
Newsgroups: comp.graphics.opengl
Subject: Re: OpenGl vs PEX
Date: 6 Oct 92 22:23:34 GMT
Organization: Silicon Graphics, Inc.  Mountain View, CA
NNTP-Posting-Host: warp.asd.sgi.com


In article <Bvpxw8.K4x@apollo.hp.com>, mcsavaney_d@apollo.hp.com writes:
> What about the software author that is required to purchase OpenGL source
> code to support platforms that do not provide OpenGL? What happens
> when they have to provide source code of _their_ product with embedded
> OpenGL calls to important customers? Or to put their application in escrow? 
> Do they have to pay the $300,000 (three hundred thousand dollars) for the 
> OpenGL source code license fee? What are the subsequent source code 
> redistribution fees?

This is confusion on your part.  A software developer doesn't have to
pay $300,000 for a license.  Thats baloney.  Minimally, the license costs
$25,000 for a spec license and the right to distribute a library called
OpenGL (subject to the requirements of conformance, completion of the API,
etc.).  Source code costs more (<= $75,000).  The right to redistribute
the source code costs even more ($100,000).  Still way under $300,000 though.
The per-seat cost that SGI is asking for is $5, and is negotiable.  Here is
the kicker - Universities can get the 2nd level license (spec + code) for
$500.  Not a typo - five hundred U.S. dollars.

[ Please note - I don't know the exact numbers; the numbers I have used
here are old, and are at worst, too large]

If you start getting realistic about developing a performing implementation
of PEX for your particular graphics adapter, you will quickly realize that
it will cost you more than $100,000, unless you want to produce something
that is nothing more than a port of the PEX-SI.  Then, you *will* get what
you paid for as you will then have the slowest performing PEX implementation
in the computer industry.  If instead, you spend any time at all on it,
you will quickly eat $100,000 dollars in engineering costs.  Please remember
that free isn't really free.  For HP it effectively is because they can absorb
the engineering costs associated with turning the PEX-SI into something
useful (any bets on whether HP is actually using the PEX-SI at all? :-)

> As for the Windows/NT comment - OpenGL is scheduled for
> inclusion in NT for release 2, in 1994. (I stand corrected here if 
> other information is available).
When OpenGL is widely available in NT is as yet an unknown date.  1994 is
probably the latest it would be available in NT, not the earliest.

> Apologies for the interruption.
> Not an official statement of Hewlett-Packard Company.
> (because of the insecurity of the medium I am using and the 
> possibility of spoof messages)
> 
> I _am_ able to talk to people about PEXlib and OpenGL and why
> HP supports PEX. Just give me a call.
How delightful of you to say this, and *so* relevant to this
discussion :-) Marketing, did you say?  :-)  Did I mention that OpenGL
will be available for HP machines from Nth graphics? :-)


					kipp hickman
					silicon graphics inc.
Newsgroups: comp.graphics.opengl
From: woo@pioneer.arc.nasa.gov (Alex Woo RAA)
Subject: Any XTerminals which will support OpenGLRe: OpenGl vs PEX
Summary: Graphics Accelerator
Organization: NASA Ames Res. Ctr. Mtn Vw CA 94035
Date: Mon, 5 Oct 92 18:32:36 GMT


Are any X-Terminal vendors going to provide graphics
accelerators which support OpenGL?  Or, is there going
to be a PC or MIPS box which costs like an X-Terminal
and support OpenGL?

Alex Woo
woo@ames.arc.nasa.gov
========================================================================
Alex Woo, MS 227-6                         woo@ames.arc.nasa.gov
NASA Ames Research Center           __o    NASAMAIL      ACWOO
Moffett Field, CA 94035-1000       -\<,    SPANET        24582::WOO
(415) 604-6010 (FAX) 604-4357 .....O/ O   {hplabs,decwrl,uunet}!ames!woo
========================================================================
Disclaimer: These comments are not official statements of NASA or EMCC.
========================================================================
From: jonathan@cs.pitt.edu (Jonathan Eunice)
Newsgroups: comp.graphics.opengl
Subject: Re: OpenGL Printers?
Date: 5 Oct 92 18:50:33 GMT
	<1aod61INNc68@fido.asd.sgi.com>
Organization: University of Pittsburgh Computer Science

Peter S. Shenkin (shenkin@avogadro.barnard.columbia.edu) writes:

       I'm wondering if it would be possible to devise an interpretive
       languge which would do for the printing of 3D images what
       PostScript did for the printing of 2D images.

Not a good idea, IMO.  GL (and other graphics APIs) currently benefit
from considerable hardware assist.  Often, the floating point capability
of a graphics unit approximates or excedes that of its host system.
Putting this hardware in a printer might make sense were it cheap, but
it's not.  To the contrary, it's quite expensive.  

I'd rather see graphics subsystems (like those that support OpenGL)
generate PostScript output files (at a given resolution, say) that I
can then execute on my commodity PostScript printer (or software
simulation thereof).  This solution improves the utilization of
expensive, often-idle hardware (the workstation graphics engine)
rather than introducing new, expensive hardware that would often sit
idle.

jse
Newsgroups: comp.graphics.opengl