HDTenEightyP/NetNews huggingface dataset:
From: gmt@reef.cis.ufl.edu (GMM)
Newsgroups: comp.graphics
Subject: HUMOR: Prodigy and Distributed Raytracing
Date: 22 Jul 92 06:26:55 GMT
Organization: Univ. of Florida CIS Dept.

Here's a really goofy brainstorm I had for distributed raytracing:

Why not incorporate into the proprietary communication programs that are
used for such online services as Prodigy a simple raytracer which can
calculate a very small number of pixels/frame? First, when users first log on,
you could upload a scene discription to their computers.  While they are
online, you could send escape codes to them for viewpoint changes and
object repositioning, and have them return the value of a pixel or a small
group of pixels.  The computers at the Prodigy-like company could shell out
the scene information and collect the results to make for a very fast
distributed raytracer.  This is assuming that the time spent sending scene 
information is not too substancial.

Gary McTaggart
(gmt@cis.ufl.edu)
From: glenn@Software.Mitel.COM (Glenn Thrower)
Newsgroups: comp.graphics
Subject: Re: Latest Source of XV - Please Post
Date: 30 Jul 92 19:24:45 GMT
Organization: Mitel. Kanata (Ontario). Canada.
X-Newsreader: Tin 1.1 PL4

coroas@cs.sfu.ca (Roger Coroas) writes:
: Hi:
: 
: Can somebody post the address to get XV via ftp?
: 
: Thanks,  Roger Coroas
: 
: -- 
: 
: --------------------------------------------------------------------------------
: Roger Coroas            Simon Fraser University
: coroas@cs.sfu.ca        Department of Mathematics and Statistics

XV can be found at ftp.uu.net in the following directory 

packages/X/contrib/xv-2.21.tar.Z-split/part01 to part08
packages/X/contrib/xv-2.21.tar.Z-split/README

I just got it a few days ago via the mail server mailserv@uunet.ca
The eight parts need to be concatenated together and the ran through tar.

I hope this information helps.

--

******************************************************************************
         __________     __________     __________
        / ________/    /___  ____/    /___  ____/
       / /  _____         / /            / /       glenn@Software.Mitel.COM
      / /  /__  /        / /            / /       
     / /_____/ /        / /            / /         Kanata, Ontario, Canada
    /_________/        /_/            /_/      

******************************************************************************
From: rdlankes@rodan.acs.syr.edu (Virtual Dave)
Newsgroups: comp.graphics
Subject: Re: Help: PICT/TIFF -> Quicktime
Date: 23 Jul 92 15:55:19 GMT
Organization: Syracuse University, Syracuse, NY

In article <1992Jul22.160511.13091@news.media.mit.edu> tsmaster@media.mit.edu (David LeCompte) writes:
>At work I'm doing some graphics work with MacRenderman, and I'd like
>to take the cool graphics that I'm producing and generate a Quicktime
>movie. Or really, any other kind of easily played animation file.
>
>A friend said that he thought that something exists that will take a
>series of PICTs named something like FOOxx where xx is the frame
>number and generate a movie. Any pointers?
>
>			Thanks in advance

Indeed there is. It is called convert to movie and is available with the
QuickTime release. It takes either a PICS file, a Moovie file (QT) or
a series of ordered PICT files (MyPict001, MyPict002, etc...) and turns
them into a properly configured (color depth, compression rate, etc..)
QuickTime Moov file. It is really great! Really Easy too.

Let me know if you need the app. I think Apple is giving it away.


-------------------------------------------------------------------------------
|R.David Lankes (Virtual Dave)| Virtual Realities/Synaesthatic Communication  |
|  rdlankes@rodan.acs.syr.edu |     "We'll solve VIRTUALLY any problem"       |
-------------------------------------------------------------------------------
From: Chris_F_Chiesa@cup.portal.com
Newsgroups: comp.graphics
Subject: Re: stereoscopic images ?
Date: Sat, 25 Jul 92 06:02:35 PDT
Organization: The Portal System (TM)

Dirk Sturzebecher (g89s9112@alpha.ru.ac.za) writes:

>I have a 3D wireframe object dissplayed. I would like to generate a
>stereoscopic image from the wireframe object. What is the correct way of
>doing this ? I can remember something about rotation ?

I assume you mean to render a shaded, solid version of the image, right?
I would think you could get good results by simply emulating the way 
stereoscopic perception works "in real life": generate one image, then move
your "eye" ("camera") a little to one side, i.e. perpendicular to the 
direction you're "looking" ("aiming the camera") and generate another image.
Two images of the same thing from slightly separated viewpoints => stereo.

If you're just interested in rendering that wireframe itself in stereo, 
I've gotten fair results in the past by just doing the standard 2D-to-3D
perspective transform, but adding a "sideways shift" to points based on 
their "distance from me."  Render two images with slightly different "sideways
shift" factors and you get a stereo pair.  Keep in mind this is probably
the "poor man's" way of doing this.

Chris Chiesa
  Chris_F_Chiesa@cup.portal.com
Newsgroups: comp.graphics,comp.graphics.visualization
From:  wrf@ecse.rpi.edu (Wm Randolph Franklin)
Subject: Re: Q. tetrahedrisation
Organization: Rensselaer Polytechnic Institute, Troy, NY
Date: Thu, 23 Jul 1992 18:52:24 GMT


In article <1992Jul13.122442.03202@lab2.phys.lgu.spb.su> on 13 Jul 92
08:24:42 GMT, dvj@lab2.phys.lgu.spb.su writes:

  > I am interested in a problem of 3d-splines on random lattice.
  > The greatest problem is to make tetrahedrisation with maximum
  > performance (maximum of min body angle) of tetrahedrons.

The expert is probably Herbert Edelsbrunner (edels@p.cs.uiuc.edu).
Check the annual Symposium on Computational Geometry.

3D is qualitatively different from 2D in (at least) 2 ways:

1. Some polyhedra cannot be tetrahedrized w/o adding new interior
vertices.  All polygons can be triangulated.

2. For a given polygon, all triangulations of it have the same number of
triangles.  This need not be true in 3D.

Ps. I am collecting qualitative differences between 2D and 3D geometry,
and welcome suggestions.
-- 
Wm. Randolph Franklin,  wrf@ecse.rpi.edu, (518) 276-6077;  Fax: -6261
ECSE Dept., 6026 JEC, Rensselaer Polytechnic Inst, Troy NY, 12180 USA
Xref: sparky comp.graphics:8223 sci.image.processing:245 comp.ai.neural-nets:2995
From: frank@whare.cavebbs.welly.gen.nz (Frank van der Hulst)
Newsgroups: comp.graphics,sci.image.processing,comp.ai.neural-nets
Subject: Re: ALGORITHM NEEDED:  Palette Selection
Date: Tue, 28 Jul 92 20:15:30 NZT
Organization: Tech-Soft Systems, Wellington NZ

icfaragh@cayley.waterloo.edu (Chad Faragher) writes:

> The situation:  An image is stored by giving the rgb value for each pixel.
>  
> The problem:  How to find the best palette of size-n for a particular image
> stored (at arbitrary resolution) as above.
>  
> The solution:  HELP!!!

.............. is called quantisation.

> Does the algorithm exist?  Is it memory intensive?  Can it be solved with 
> recursion (ie octree division)?  Can a neural-net be trained to arrive at
> a visually pleasing palette given the original image?

On Simtel PD1:<MSDOS.GRAPHICS> you'll find PVQUAN15.ZIP... that contains
source code for not one but two quantisers. One does indeed use a
recursive octree algorithm, the other uses Heckbert's box-splitting
algorithm. Heckbert's is more memory-intensive (on the PC I used a
virtual-memory paging system).

Sorry but I can't help you with a neural-net solution... I suspect it
would difficult to train one to find a "pleasing" solution.

Frank.

Newsgroups: comp.graphics,sci.bio,sci.chem
From: tibbs@karazm.math.uh.edu (Jason L Tibbitts III)
Subject: Protein Data Bank Files?
Organization: Blob Shop Programmers
Date: Wed, 29 Jul 1992 23:34:29 GMT

I'm working on an application where molecular interactions are
mathematically modeled and the atomic orientations are captured as PDB
files and output at various stages in the interactions.  These files are
then to be rendered to bitmaps and output to video tape using a Video
Toaster.

We have a simplistic renderer for the PDB files, but I'm curious as to
whether or not there exists a renderer (a ray tracer or the like) that can
read PDB files, or if there exist conversion programs to get these files
into something that a renderer can read.

We have the same problem with MSF files from Polygen's Quanta.

Thanks for any information,
--
Jason L. Tibbitts III - tibbs@math.uh.edu - (713) 743-3466 - XYX23
System Administrator: University of Houston Mathematics Department
Moderator of comp.sys.amiga.reviews (amiga-reviews@math.uh.edu)
Blob Shop Programmers: Database consulting and graphics programming
Newsgroups: comp.graphics
From: danielbt@marsh.cs.curtin.edu.au (Brett Daniel)
Subject: Quickmodeller for SGI 4.0.1 X11
Keywords: quickmodeller sgi 4.0.1 X11 geomview irit
Organization: Curtin University of Technology
Date: Wed, 29 Jul 1992 10:42:01 GMT


I am attempting to put together a graphics modeller that will resemble
Alias quickmodel, but will run on SGI X11.  I have access to Geomview and
IRIT source code.  I am proposing to take pieces of both packages to form
a quickmodeller that will run on the new SGI 4.0.1 operating system.

I would like information on the following questions:
Firstly, has anyone written a "quickmodeller" that will run on X11?
Secondly, has anyone tried to do something similiar?
Thirdly, is anybody interested in obtaining software of this nature?

Thank you in advance for all replies received.

Brett Daniel
School of Computing Science
Curtin University of Technology
Western Australia.

email: danielbt@marsh.cs.curtin.edu.au
--

Brett Daniel
School of Computing Science
Curtin University of Technology
Western Australia.
email: danielbt@marsh.cs.curtin.edu.au
Newsgroups: comp.graphics
From: ncc1701@madoka.its.rpi.edu (Mark O. Chadwick)
Subject: Anyone using Playmation (for PC or Amiga)?
Reply-To: ncc1701@acm.rpi.edu
Distribution: usa
Date: Thu, 30 Jul 1992 14:54:16 GMT

Hi there,

I just got this animation program called Playmation for the PC...

I was wondering if anyone else was using it, and might be interested
in exchanging  data, tricks, and neat things like that....

Please email or post, whatever's easiest...
Thanks!

-Mark

-- 
---
Mark "Emerson" Chadwick -- ncc1701@acm.rpi.edu    chadwickmo@space.laafb.af.mil
From: pcb@gunfight.austin.ibm.com (Peter C. Bahrs)
Newsgroups: comp.graphics
Subject: Got color printer, now what scanner...
Date: 29 Jul 92 19:19:39 GMT
Organization: IBM, Austin

I am looking for good color printers and scanners to support from AIX 1.3 and
its follow on product.  A great majority of people replied to me that a good
high end printer would be Tektronix's Xi color postscript level 2 printer.
For a low end, the HP desk(jet|view) color printer.

Now I am interested in scanners, color, high res.  Any suggestions?  Is there
any good unix software that runs with particular scanners?

Thanks for your time,
Peter


-- 
/*--------- These are my own opinions....Thanks in advance...  --------------+
|     Peter C. Bahrs         internet: pcb@gunfight.austin.ibm.com           | 
|     AIX PS/2 R&D                     peterb@bcrvmpc1.vnet.ibm.com          |
+---  Boca Raton, Florida ------ vnet: peterb at bcrvmpc1 ------------------*/
From: brinkley@ulnar.biostr.washington.edu (Jim Brinkley)
Newsgroups: comp.graphics
Subject: Re: Software teaching aids for human anatomy
Date: 24 Jul 92 17:05:00 GMT
Article-I.D.: u.1992Jul24.170500.4776
Organization: University of Washington

In article <1992Jul23.192149.24918@athena.mit.edu> eafg@athena.mit.edu  
(Ted A Gibson) writes:
> I am working on a software teaching aid for human functional anatomy
> for medical students.  I am interested in finding out what else is
> available.
> 
> I am aware of two existing computer aided anatomy teaching packages.
> These are: "Bodyworks" for PCs by SoftWare Marketing Corp. and a Mac
> Hypercard package.
> 
> If anyone knows of other related software packages that are either
> available or under development, I would appreciate any information
> that you could give me.
> 
> Thanks,
>             Sarah Gibson
>             Neuman Biomechanics Lab
>             MIT
>             gibson@imager.mit.edu

You might be interested in the first products from our Digital Anatomist  
program at the University of Washington. These are a video disc of 3-D  
human brain animations made from 3-D reconstructions of the brain, and a  
hypercard browser which allows a student to point to structures on 2-D  
brain slices, which then call up the relevant sequences on the video disk.

The video disc is available now, and the browser will be ready in the  
fall. The contact person is:
	John Bolles
	Health Sciences Center for Educational Resources SB-56
	University of Washington
	Seattle, Wash 98195
	206-685-1186
Xref: sparky comp.graphics:8251 comp.programming:2128
From: bre@os.is (Bjarni R. Einarsson)
Newsgroups: comp.graphics,comp.programming
Subject: Is Mode-X compatible with OS/2??
Keywords: MODE-X OS/2
Date: 24 Jul 92 16:49:54 GMT
Followup-To: comp.graphics
Organization: Orkustofnun


Hello there..
 
   I have recently started to program in the undocumented MODE-X 
resolution (320x240x256) on VGA cards, and was very impressed by its 
potential, especially compared with the "standard" 256 color mode.  
I have read a couple of posts by people who have programmed this mode, 
so I know you guys are out there.. but has anybody tried this mode on 
OS/2 systems?  
   I don't know much about OS/2 but it seems to play watchdog
over most graphics (why else all the hype about "full-screen mode" in
the games newsgroup"??) and since MODE-X is not a BIOS supported mode
one would suspect that OS/2 would not know what to do with it..

   Has anybody tried this?  Does it work?

P.S.  Is anybody interested in exchanging techniques for programming this 
      mode?  I have compiled a pretty streamlined library in PASCAL (TP5.5)..

  ______________________________________________   ___________________
 /                                              \ /                   \
( "Shee, you guys are so unhip its a wonder your O Bjarni R. Einarsson )
(  bums don't fall off!" -- Zaphod Beeblebrox    O  - - bre@os.is - -  )
 \______________________________________________/ \___________________/
Newsgroups: comp.graphics
From: alan@riemann.gsfc.nasa.gov (Alan McConnell)
Subject: PICT file format? HELP?
Organization: NASA Goddard Space Flight Center, Greenbelt MD
Distribution: comp.graphics
Date: Wed, 22 Jul 1992 15:17:00 GMT

Newsgroups: comp.graphics
From: IMAGING.CLUB@OFFICE.WANG.COM ("Imaging Club")
Subject: BABT approved FAX boards for U.K.
Organization: Mail to News Gateway at Wang Labs
Date: 23 Jul 92 21:33:31 EST

Would you know of any CAS, Fax Class 1, or Fax Class 2 boards
that are BABT approved for the U.K.?

Your advice or suggestions would be very much appreciated!

Many Thanks,

Michael.Willett@OFFICE.Wang.com
From: lilleyc@cs.man.ac.uk (Chris Lilley)
Newsgroups: comp.graphics
Subject: Re: 24 bit display of 24 bit images in X on DECStation 5000/240
Date: 24 Jul 92 18:31:05 GMT
Reply-To: lilleyc@cs.man.ac.uk (Chris Lilley)
Organization: Department of Computer Science, University of Manchester UK

In article <1992Jul22.214630.5024@noose.ecn.purdue.edu> dmc@ecn.purdue.edu writes:

>displaying 24 bit images on a DECStation 5000/240 running Ultrix 4.2A
>with their full 24 bits.  I am aware of XV 2.21 and Xloadimage, but
>they both appear to first convert to 8 bits.  I was wondering what
>were the best/fastest public domain programs to display such images,
>and sequences of such images in rapid succession.

Try getx11 from the utah raster toolkit. This displays 24 bit images in 24
bits, has zoom and movie/slideshow facilities, and can gamma correct
properly too! It displays utah rle images but has converters from a number
of formats; one of these is ppm, giving you access to lots of other formats
if you have PBMplus toolkit too.

Whether this is ok depends on what you mean by 'rapid', though.

Chris
Newsgroups: comp.graphics
From: rollins@oktext.sbc.com (Steven D. Rollins)
Subject: Re: Latest Source of XV - Please Post
Reply-To: rollins@oktext.UUCP (Steven D. Rollins)
Organization: Southwestern Bell
Date: Thu, 30 Jul 92 13:21:03 GMT

>>2: XView is NOT XV. XV is an image display utility, XView is a window
>>manager system.
>
>XView is a synonym or Xloadimage -- from the man page:
>
>XLOADIMAGE(1)            USER COMMANDS              XLOADIMAGE(1)
>NAME
>     xloadimage, xsetbg, xview - load images into an  X11  window
>     or onto the root window
>... 
>FILES
>          xloadimage              - the image loader and viewer
>          xsetbg                  - pseudonym which quietly sets the background
>          xview                   - pseudonym which views in a window
>
>							spl

I've been reading all these articles about xv and haven't seen an ftp
address yet. Can anyone post this please. It sounds interesting.
Thanks

Newsgroups: comp.graphics
From: alan@highlite.uucp (Alan McConnell)
Subject: Re: Need info on "IDL" a product of Research Systems Inc.
Organization: Gotham Communications Research
Date: Sat, 25 Jul 1992 13:25:54 GMT

bogstad@blaze.cs.jhu.edu (Bill Bogstad) writes:

>	I've been told to investigate a product called "IDL" which is a
>graphical user interface tool for scientific/engineering users.  At this
>point I don't know anything else about it.  (Even how to contact the
>vendor.)  Contact information and candid reviews would be appreciated.

>				Thanks,
>				Bill Bogstad
	Many scientists and graphics-type folk at Goddard Space Flight
	Center, where I work, use IDL and swear by it(not _at_ it).  I've
	used it a little, and it does quite nicely what you tell it to
	do.  You must put up with a some old-fashioned Fortran-like
	syntax.
Alan McConnell
-- 
Alan McConnell             "What wondrous life is this I lead!
Pixel Analysis              Ripe apples drop about my head . ."
From: gsrfy@levels.unisa.edu.au
Newsgroups: comp.graphics
Subject: JPEG ( Version 3 ) for UNIX
Date: 27 Jul 92 09:34:19 GMT
Organization: University of South Australia


	This newsgroup seems to be inhabited by some very knowledgeable and
active users, so I'd like to ask : does anyone know if there is a version
of JPEG, which has been compiled and works, on UNIX ?

	If so, can I get a copy by FTP ?

		Regards to everybody
		Rick Yuan
		South Australia
Newsgroups: comp.graphics
From: jk87377@cc.tut.fi (Juhana Kouhia)
Subject: Re: Computer Animation papers/theses ?
Keywords: Computer Graphics, Computer Animation.
Organization: Tampere University of Technology
Date: Wed, 29 Jul 92 18:07:02 GMT


In article <1992Jul27.153447.4417@cc.tut.fi> jk87377@cc.tut.fi (Juhana
Kouhia) writes:
>

Oh well, I sent a list for the papers in the Net.
I forget to point out what is the animation paper.
Here it is:

>  Alexander G. M. Smith
>  Handyman - A Multiuser Puppeteering System for Computer Graphics
>    Motion Control
>  Master Thesis, 1991
>  E-mail: 71330.3173@CompuServe.com
>  <HandymanAGMSThesis.ps.Z>


Juhana Kouhia
From: rajad@krypton.its.uci.edu (Subodh Rajadhyaksha)
Subject: Easy to use software for specific application
Newsgroups: comp.graphics
Organization: University of California, Irvine
Keywords: Sun,graphics
Date: 27 Jul 92 21:49:49 GMT
Distribution: usa

	I need recommendations for easy to use software, preferably available free(though that is not an entirely limiting factor) on a Sun workstation.

	I need to develop a GUI for a FORTRAN program that routes vehicles over a large road network and keeps track of various characteristics of the road network such as the volume and density of traffic on that road.  I also need to be able to zoom in on certain intersections with the mouse and make changes in some specific parameters of these intersections and then continue execution of the program with the modified values.  I would also prefer to have the ability to build a road network graphically using thi



s GUI, but this is not critical.  The software should not require an extensive programming background and ideally would have read to use calls for opening windows, creating menus and buttons and other similar features. 

	I'd really appreciate suggestions and recommendations along with details if available mailed to me direct.  Thanks in advance. 

Subodh Rajadhyaksha.
University of California,Irvine.

	
Newsgroups: comp.graphics
From: wang@hp4at.eunet.co.at (Wang)
Subject: Re: Converter TIFF <--> MODCA searched!!!
Organization: EUnet EDV-Dienstleistungsgesellschaft m.b.H
X-Newsreader: Tin 1.1 PL4
Date: Tue, 21 Jul 1992 10:19:03 GMT

wang@hp4at.eunet.co.at (Wang) writes:
: Hi all!
: We are searching for a TIFF <--> MODCA conversiontool for R6000/AIX 3.2.
: Sourcecodes for other platforms are also appreciated!
: PD is no requirement (but would be nice!).
: 
: *ANY* pointers are helpful!
: Thanks a lot,

We are still seeking for above item!!
Anything covering this topic might be helpful!!

Thank you very much!

Michael Zacherl

-- 
Michael Zacherl, Wang Austria Ltd., Vienna         |
E-MAIL: mza@pag.wang.co.at                         | "Everything you wish
PHONE:  +43 (1) 89-111 ext. 433                    |  comes true! (mostly)"
FAX:    +43 (1) 894-17-14                          |         ;-)
From: kelvin@cs.utexas.edu (Kelvin Thompson)
Newsgroups: comp.graphics
Subject: Siggraph receptions
Date: 21 Jul 1992 10:00:51 -0500
Organization: CS Dept, University of Texas at Austin
NNTP-Posting-Host: cs.utexas.edu

Hey, like.

Where are the Courses and Papers/Panels receptions going to be
at Siggraph this year?

(Siggraph is a convention about computer graphics.)

-- Kelvin
-- 
-- Kelvin Thompson, Lone Rider of the Apocalypse
   kelvin@cs.utexas.edu  {...,uunet}!cs.utexas.edu!kelvin
Newsgroups: comp.graphics
From: jk87377@cs.tut.fi (Juhana Kouhia)
Subject: SIGGRAPH postcards
Originator: jk87377@naakka.cs.tut.fi
Organization: Tampere University of Technology
Date: Wed, 22 Jul 1992 18:50:17 GMT


I'm not able to come SIGGRAPH, so this is a request to send me
some cute computer graphics postcards from SIGGRAPH; my address is
 
  Juhana Kouhia
  Ylioppilaankatu 10 C 15
  33720 Tampere
  Finland
 
 
Juhana Kouhia
:-)
--
From: kam@rangkom.MY (Kamsuriah bt. Ahmad)
Newsgroups: comp.graphics
Subject: Image Skeleton
Keywords: Image
Date: 21 Jul 92 03:35:18 GMT
Organization: MIMOS, Malaysia

testing

Xref: sparky comp.graphics:8155 comp.multimedia:2237 comp.compression:2806 alt.graphics:312