HDTenEightyP/NetNews huggingface dataset:
From: dfegan@lescsse.jsc.nasa.gov (Doug Egan)
Newsgroups: comp.graphics
Subject: Re: Stereo Video Inputs
Keywords: virtual-reality augmented-reality stereo-video
Date: 25 Jan 93 17:25:48 GMT
Organization: LESC

In <C182Gp.Fnq@ie.utoronto.ca> garym@ie.utoronto.ca (Gary Murphy) writes:

>I'm having a hard time believing there are no available platforms to
>read stereo video inputs into a computer.  What I want seems so
>simple: I need to read in two channels of colour stereo video, add
>some relatively simple graphics, and output stereo NTSC outputs, and I
>need bit-access to the video images for ranging and calibration
>operations.


     I currently have the Super VideoWindows card and Developers Kit
   from New Media Graphics. :)  I am running Windows 3.1... Seems like it
   will do all that I want it to... It has three video inputs, sterio audio,
   24-bit color. You will need to passthru to an additional VGA board,
   thus taking two slots. There is a "sister" VGA board available that
   will <piggyback> and take only one slot. 

     You must buy an additional Developers Kit, if you want to do ANY
   kind of coding... and the End User Kit to do ANYTHING at all! :(
   There are lots of Third Party applications that support it...
   The manuals are very well put together, as well.

     But I am VERY pleased, so far, with the product.

     The cost of these products are not cheap, but also not that
   expensive, if you compare other video products.

        New Media Graphics
        780 Boston Road
        Billercia, MA  01821-5925
        (508) 663-0666
        1-800-288-2207


Happy Imaging!


--
 Doug Egan                                  "Old enough to know what's right-
 Lockheed Engineering and Sciences Co.       Young enough not to choose it.
 Houston, TX                                 Wise enough to win the world-
 ***** InterNet:  egan@blkbox.com  *****     Fool enough to loose it." -Rush
Newsgroups: comp.graphics
From: ipadavic@garnet.acns.fsu.edu (Irene Padavic)
Subject: Re: SpeedStar 24x Troubles (perhaps!)
Organization: Florida State University
Date: Fri, 22 Jan 93 19:21:19 GMT

BARILEJB@ctrvax.Vanderbilt.Edu () writes:
> Lately, I've been having strange problems with my Gateway 386/33c. 
> While running Windows (with any or no apps open/active), all of a
> sudden my screen will clear, the keyboard will lock, and I get a
> message something like "Memory Parity Error - System Shutting Down"
> with all sorts of blue and white ASCII garbage on the screen.
>  
> Thinking back to when this all began, it was around the time I 
> installed my Diamond Speedstar 24x.  I believe it's the latest version
> with the latest drivers and all.  
>  
> My question is in 2 parts:
>  1)  Is this a valid accusation?  Is it possible for a video card to do
>      this?  Perhaps I should say, video drivers since it only happens
>      wihle I'm running Windows.
>  2)  Has anyone else seen the same problem with (or without) a 24x
>      installed?  
>  
> Other equipment in the box is a Sound Blaster 1.0, a Music Quest PC-MIDI
> card, 2 serial/parallel/game port cards, and the usual mouse, printer,
> 2400baud modem... etc.  
>  
> Thanks in advance for any help or hints!
> -Jason Barile
>  barilejb@ctrvax.vanderbilt.edu
> 
Newsgroups: comp.graphics
From: wessel@kub.nl (Wessel Kraaij)
Subject: printing a colour or grayscale image on a HP laserjet 4
Date: Mon, 25 Jan 93 09:17:43 GMT
Organization: Tilburg University, Tilburg, The Netherlands


-- 

Printer: HP laserJet 4M (with PostScript) (600dpi)


I am interested in:

1. The fastest way to print a colour image ( GIF, TIFF, SUNraster format)
 
   as a b/w bitmap .
    
   Which (precomputed) format gives the printer an easy job?

2. The method to produce the best possible b/w image on the printer, i.e.
   it does not matter how much print computing time is involved.


3. A good compromise between 1 and 2.





Note that I have "xv" which gives me the possibility to convert an image to
grayscale, b/w dithered etc. 

My current method is: Use xv to convert a colour image to a gray scale image,
output a PostScript file and send it to the printer. This gives a good result 
but takes some time (15 minutes). Another disadvantage is the rather large size 
of the PostScript files.


Wessel Kraaij

wessel@kub.nl
Newsgroups: comp.graphics
From: yahnke@macc.wisc.edu (Ross Yahnke)
Subject: Please recommend GUI books
Followup-To: comp.graphics
Organization: University of Wisconsin Academic Computing Center
Date: Thu, 28 Jan 93 21:43:20 GMT

Can anyone recommmend any currently available books on good interface
design, particularly for:
  a) machines running Windows
  b) general books about dos machines w/SVGA cards.

Thanks! - Ross
                                     Madison Academic Computing Center
                                               University of Wisconsin
                                                          608.262.8626
Newsgroups: comp.graphics
From: andy@osea.demon.co.uk (Andrew Haveland-Robinson)
Distribution: world
Subject: Re: comp.graphics.pov
X-Mailer: cppnews $Revision: 1.14 $
Organization: Haveland-Robinson Associates
Date: Sun, 24 Jan 1993 07:28:06 +0000


In article <SCD.93Jan18221303@nevar.cs.brown.edu> scd@cs.brown.edu (Steven C. Dollins) writes:

>In article <727307167.0@freudsys.iaf> Renee.Teunissen@freudsys.iaf.nl (Renee Teunissen) writes:
>
>   quite a time ago someone held a voting around here for
>   comp.graphics.pov or c.g.rendering is this group active yet or didn't
>   it get enough votes ??
>
>   Regards,
>    _
>   |_)
>   |\_enee.    [Renee@freudsys.iaf.nl]

Hi Renee...

I'd just like to remind everyone of the existence of the dkb-l listserver
which works just as well... (I don't know if the disks have arrived yet,
as I haven't been home for a couple of weeks owing to pressure of work!).

POV Listserver info.
~~~~~~~~~~~~~~~~~~~~
Simply mail listserv@trearn.bitnet with no subject and containing in
the body:

help
subscribe dkb-l whatever your full name is

You'll get a mail telling you how to use it, and a few messages that
are going on in the world of pov...

Andy.

+-----------------------------------------------------------------------+
| Haveland-Robinson Associates   | Email: andy@osea.demon.co.uk         |
| 54 Greenfield Road, London     |        ahaveland@cix.compulink.co.uk |
| N15 5EP England. 081-800 1708  | Also:  0621-88756 081-802 4502       |
+-----------------------------------------------------------------------+
<<>> Those that can, use applications. Those that can't, write them! <<>>
> Some dream of doing great things, while others stay awake and do them <
Xref: sparky comp.graphics:14224 comp.windows.x.pex:703 comp.graphics.opengl:280
From: ad99s461@sycom.mi.org (Alex Deburie)
Newsgroups: comp.graphics
Subject: 'First Dirivitive'... How?
Date: 26 Jan 93 11:35:07 GMT
Organization: Michigan Information eXchange
X-BBS-Software: EXCELSIOR! V0.976

I've heard of, and seen, the effect known as a "first dirivitive" (sp). Can 
anyone fill me in on how this operation is done? Is it a simple convolve 
matrix?

The way I understand it, the difference between adjacent pixels is taken as 
the color for the pixel in question, but, whenever I attempt this operation, 
the result is less than desireable.

Any help would be greatly appreciated? (ie. reference, source, description)

     -- Alex Deburie
        ad99s461@sycom.mi.org
Newsgroups: comp.graphics
From: leus@aix.rpi.edu (Sheua-Wan Leu)
Subject: Computer Graphics Career handbook
Keywords: Computer Graphics Career handbook
Date: Wed, 27 Jan 1993 17:43:33 GMT

Does anyone know the information about a book 
"Computer Graphics Career handbook" which was published by SIGGRAPH.
ISBN number ? Where I can get it ? price ? Can I mail order from SIGGRAPH ?
Any information is appreciated.
Sheua-wan Leu 

leus@rpi.edu, leus2@rpi.edu
Newsgroups: comp.graphics
From: gerrits@research.ptt.nl
Subject: Graphics in AI, CGM, PIC and WMF\
Organization: PTT Research, The Netherlands
Date: Thu, 28 Jan 1993 09:07:43 GMT


Help me! I have written a program that creates EPS output. But drawing
'utilities' like CorelDraw or Designer are not able to import EPS correctly.
And on top of that WordPerfect and MS-Word (DOS or Mac) are not able to
print EPS graphics on non-PostScript printers.
So I want to add an export feature to my software. Most easy for me is
of source .AI (Adobe illustrator) format, becasue it looks like EPS and
this format *can* be imported by Coreldraw and Designer.
Better would be a format like CGM, PIC, or WMF, because these formats
can be printed on non-PS printers by WP and Word.

Can anybody help me to get info about these graphic formats, or maybe 
help me to get source code in Pascal, C or ASM?

Thanks in advance!!

Rob Gerrits.


Newsgroups: comp.graphics
From: svirsky@tti.com (Bill Svirsky)
Subject: REQUEST: looking for an autotracing utility
Summary: bitmap to metafile conversion
Organization: Transaction Technology, Inc.
X-Newsreader: TIN [version 1.1 PL8]
Date: Wed, 27 Jan 1993 17:44:52 GMT

Does anyone know of an inexpensive - free would be best (:, utility
for tracing and converting bitmap line-art into a format suitable
for Windows Draw, Arts & Letters Graphics Editor, Corel Draw, etc.
Thanks.

--
Bill Svirsky  svirsky@tti.com, Compuserve:72137,1547
..!{philabs,psivax,pyramid,quad1,rdlvax,retix,rutgers}!soldev!svirsky

"There's never enough time to do all the nothing you want"  Calvin & Hobbes
From: reid@sunpix.East.Sun.COM (Reid Judd - Sun NC Development Center)
Newsgroups: comp.graphics
Subject: Re: Papers missing
Date: 21 Jan 1993 19:58:10 GMT
Organization: Sun Visualization Products
Distribution: world
Reply-To: reid@sunpix.East.Sun.COM
NNTP-Posting-Host: wild-rice-1.east.sun.com

In article <1993Jan21.173854.27784@alf.uib.no>, s127@brems.ii.uib.no (Torgeir Veimo) writes:
|> I'm looking for the paper "Analysis of Radiosity Techniques in Computer Graphics" by 
|> Bernard Kwok (Masters thesis) since the printout i've got is lost and it is 
|> incomplete by some pages.
|> 
|> Could someone give me the references where to find these? Also, now that i've got
|> access to an Iris, where's the program located? (ftp sites?)
|> 

   Check out the site: 
	
	wuarchive.wustl.edu:/graphics/graphics/radiosity

   for several radiosity packages including Radiance, Rad, and Bernard Kwok's 
   radiosity thesis.
 
-- 
 
                                                    
          reid.judd@East.Sun.com             
                                                   
          Sun Microsystems
          Video Products Development Center          
          Research Triangle Park, NC 27709-3447           
	  (919) 460-8371
From: srnelson@speedsail.Eng.Sun.COM (Scott R. Nelson)
Newsgroups: comp.graphics
Subject: Re: "fill" algorithm
Date: 27 Jan 1993 16:39:26 GMT
Organization: Sun Microsystems Inc., Mountain View, CA
NNTP-Posting-Host: speedsail

eivind@kih.no (eivind hagen) writes:

>Ken Boi (kenb@amiganet.chi.il.us) wrote:
>> Could someone inform me as to how a 'fill' works in graphical painting. 
>
>If you want it EASY, make a recursive call to the 4 adjacent pixels, and
>for each pixel, check if it is the right color, and then change the
>pixels color.
>This is very slow, needs a BIG stack, but is foolproof!

I tried that once and even with 100 megabytes of virtual memory it
ran out of stack space after filling less than 500,000 pixels on the
background of a complex scene.  The system also went through a major
thrashing period before the program died.  That doesn't fit my
definition of "foolproof".

A very simple change would be to pick a pixel, then fill horizontally
in both directions as far as possible.  Once done, go check all of the
pixels above and below that filled region.  This uses much less stack
space and is also faster.  There are certainly more speed optimizations
that could be made to avoid redundant tests if you like to experiment.

You might also want to consider checking the 8 adjacent pixels rather
than 4, if you want it to go through diagonal holes.

---

Scott R. Nelson			srnelson@eng.sun.com
Sun Microsystems

"Proofread carefully to see if you any words out."
Newsgroups: comp.graphics
From: slt@wam.umd.edu (Sarah Louise Timko)
Subject: jobs in computer graphics
Organization: University of Maryland, College Park
Date: Fri, 22 Jan 1993 18:19:22 GMT

Hi, I'm not sure if this is the right place to ask this but it
seem alot of you are working in the graphics field.

I just graduated with an art studio degree and am very interseted in
doing art and animation on the computer.  Other than playing with
packages, how do I learn enough to get a job in this field,
Is there any good way to get a job, and in what area are most
of the companies?   

I hope someone can help me,  thanks

Sarah Timko    slt@wam.umd.edu      
Xref: sparky comp.graphics:14132 alt.graphics.pixutils:2962
From: kap4450@tamsun.tamu.edu (Kristopher Alan Pate)
Newsgroups: comp.graphics,alt.graphics.pixutils,utcs.graphics
Subject: printing gifs on a versa tech plotter
Date: 22 Jan 1993 17:48:38 -0600
Organization: Texas A&M University, College Station, TX
Distribution: world
NNTP-Posting-Host: tamsun.tamu.edu


Is there any way to print gifs on a versa tech plotter? If not does anyone
know of a way to convert gif to vcgl?


respomd to - kap4450@tamsun.tamu.edu
From: kenb@amiganet.chi.il.us (Ken Boi)
Newsgroups: comp.graphics
Subject: "fill" algorithm
Date: 25 Jan 93 23:43:58 CST
Organization: Amiga Network Information Systems

Could someone inform me as to how a 'fill' works in graphical painting. To
clarify, I am referring to when a color is selected and a point (i.e., pixel)
is selected in the picture, the new color replaces the selected pixel and all
adjacent pixels of the same color. This replacement continues   until a
different colored pixel is detected (a boundary). What is the algorithm for
accomplishing this? Thanks.

------------------------------------------------------------------------------
kenb@amiganet.chi.il.us                                       "What me worry?"
From: bishopg@lincoln.ac.nz
Newsgroups: comp.graphics
Subject: Help Combining two or more graphics files
Date: 27 Jan 93 16:53:42 +1300

Is there any way of combining two or more GIF or BMP files into
one GIF or BMP file.  I have some files that i wish to display
at the same time.  These files each have their own colours so
when they are combined they need to use the same 250 or so colours.


Thanks for any suggestions,


Greg
bishopg@lincoln.ac.nz
Newsgroups: comp.graphics
From: r2gps@vax1.cc.uakron.edu (Gautam P Shet)
Subject: "Autolayout algorithm for graphs"
Organization: The University of Akron, Akron, Ohio
Date: Thu, 28 Jan 1993 00:50:20 GMT


Hello Netters:
I'd appreciate if anybody out there could tell me if there is a FTP site
available from where I could get autolayout algorithms for graphs. The
required package should be able to generate the required graph after
some initial input is given to it.

Many thanx in advance.
PS- Please send your responses to r2gps@vax1.cc.uakron.edu
 
Newsgroups: comp.graphics,comp.graphics.animation
From: paik@mlo.dec.com (Samuel S. Paik)
Subject: Re: Where's the FAQ?
Keywords: FAQ
Organization: Digital Equipment Corporation, Workstations Software Group
Date: Fri, 22 Jan 1993 01:58:09 GMT

In article <1993Jan20.154657.14415@alchemy.chem.utoronto.ca> Duffy Knox writes:
>Hi, I was wondering if anyone could let me know where I can find the FAQ
>for this group. Many Thanks.
>					Duffy

Most FAQs (including the comp.graphics FAQ) are archived on
rtfm.mit.edu in pub/usenet/news.answers.

Sam Paik

p.s. I tried replying, but discovered that you have a completely invalid
return address.
Newsgroups: comp.graphics
From: laeeb@rivm.nl (Erminio Ballerini)
Subject: Re: S3 chips data books & VESA drivers
Keywords: S3 VESA
Organization: RIVM, Bilthoven, The Netherlands
Date: Tue, 26 Jan 1993 12:51:01 GMT

In article <1993Jan25.161236.14026@jussieu.fr> manson@ble.ecoledoc.ibp.fr (Richard MANSON) writes:
>  Hello,
>
> I am looking to the specifications for the S3 chip ( esp. 86C911 ). It
>look close from the 8514/A, but not exactly the same.
>
> I search as well a VESA driver for this chip ( I have an awfull collection of  
>VESA drivers, but no-one for my card, ie S3-based ).
>
> Actually, if you have an email address for S3 inc. it would be fine ...
>
>--
>Richard Manson, Universite Pierre et Marie Curie ( Paris VI )
>Email : manson@ecoledoc.ibp.fr
>
>PS : 32k colors drivers for windows for S3, anyone ?
      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

--
Erminio Ballerini             laeeb@rivm.nl               Phone +31 30-743681
Laboratory for Waste Materials and Emissions (LAE)        Fax   +31 30-293651
National Institute of Public Health and Environmental Protection
PO Box 1, 3720 BA Bilthoven, The Netherlands
Newsgroups: comp.graphics
Subject: Re: Millions! of colors...YEA!
From: djlewis@ualr.edu
Date: 21 Jan 93 20:13:24 GMT
Organization: University of Arkansas at Little Rock

In article <1993Jan20.180052.133265@ns1.cc.lehigh.edu>, cre1@ns1.cc.lehigh.edu (CHRISTOPHER R. EMERSON) writes:
> Hope this question isn't in the faq (couldn't find one) so I'll ask it here
> anyway (please no flames).
> 
> If you have a video card capable of displaying 16.7M colors, how can you
> actually use this many?  If you consider a SVGA screen at 1024x768, that
> gives you 786,432 pixels, for a possible maximum of 786,432 colors on the
> screen at one time.  My guess would be that you would have a much larger
> palette to choose from, perhaps many more shades of vermillion than a regular
> 8 bit card.
You are on the right track, it would require a screen resolution of 
4096x4096 to display 16,777,xxx colors. It would also have to be an IDEAL
monitor. The video card sends three color signals to the monitor, r,g,b. Each
of these signals varies from 0Vdc to 0.7xxVdc (don't remember the exact voltage)
The monitor electronics and picture tube would have to be capable of resolving
each voltage step from (0 to 255 units --> voltage) and displaying these minute
differences. I am not aware of a monitor that can produce 256 levels per 
primary color in any resolution. Or the device that can see it to prove it was
done.
> 
> Would having a non-Local-bus configuration with a 24bit video card slow down
> your graphics at all?  Considering that it takes more bits for each pixel on
> an already slow data bus?  Plus, when you are using regular 8 bit
> applications (any windows stuff or video game) does the card default to 8 bit
> mode or pad the colors up to 24 bits?
Yes it does slow down proportionally. I have used windows 3.1 in 64k and 16.7
million color mode and the 16 or 256 color apps use the nearest color 
principle I believe. WinFract does'nt like hicolor modes on my system. It
shows a black window when the startup mandlebrot is generated. 
> 
> Also, is there any software out there that allows you to display all these
> wonderful colors?
There are some pricey paint programs. . . CorelDraw, Imagein, Tempra Pro etc..
that let you play in 15, 16 or 24bit modes.
	I have done some modifications to Randy Bucklands vesanew.zip alias
vesatest.zip program that let you play with 15, 16 and 24bit color VESA modes.
This is a VESA only program. It allows linedraw, fill, drawpixel etc. .. The net
is welcome to take it and help develop the routines further.
	Also CSHOW850.zip works quite well with my 24bit card in VESA mode.
> 
> Thanks for any replies.
> 
You are welcome.
> 
> Chris cre1@lehigh.edu
Don Lewis
<djlewis@ualr.edu>
<djlewis@spider.ualr.edu>
From: dagerk@mcl.ucsb.edu (Jim Gerken)
Newsgroups: comp.graphics
Subject: Creating 3d wireframes
Summary: Creating a 3d wireframe from 2d views?
Keywords: wireframe, 2d->3d
Date: 25 Jan 93 21:03:25 GMT


Hello,

We're trying to create 3d wireframes of aircraft from the three 2d
views. We can scan in outlines from Jane's Encyclopedia of Aircraft
or clipart, but what we really want is a 3d wireframe (eventually
filled) that we can rotate however to get any profile.

The end use will either be a 2d surface or animation. We can work on
Mac, PC, and/or Unix (Sun Sparc) and we have an underutilized Pixar I.
Does anybody know of any good share/freeware that will let us take
our 2d outlines and automagically get a 3d wireframe out?

Thanks in advance!
Jim

Jim Gerken - Systems Administrator and computer scrounger.
Research & Development Labs - 310-410-1244
gerken@rdl.com   or   dagerk@mcl.ucsb.edu

Newsgroups: comp.graphics
From: gjbertin@cayley.uwaterloo.ca ()
Subject: File format (.PCX)
Keywords: PC Paintbrush, P.C., .PCX
Organization: University of Waterloo
Date: Fri, 22 Jan 1993 05:58:59 GMT


To anyone in the know:  If you happen to know the precise
format for the .PCX file format originally used for
PC Paintbrush, could you please respond to the following
account:

  "tbertin@snowhite.cis.uoguelph.ca"

Thanx in advance,
tbertin
Organization: Penn State University
Date: Mon, 25 Jan 1993 15:22:32 EST
From: W. Brian Spring <WBS106@psuvm.psu.edu>
Newsgroups: comp.graphics
Subject: Re: PoV question: Is there a way to render shadows but not objects?
Distribution: world

To render just the shadows, try placing objects in the following manner:
     Light source -----> Plants -----> Camera -----> (Shadows)
I don't know if this will create the effect you are looking for, but it will
show you just the shadows...  You are no longer looking at the plants from the
front.  The camera stays where it is, aimed in the same direction, but the
plants get moved toward the light source (behind the camera) so they are no
longer in sight.

I hope this helps you a little!
Brian Spring
WBS106@PSUVM.PSU.EDU
Date: Wednesday, 20 Jan 1993 12:19:06 EST
From: <RRATEICK@vma.cc.nd.edu>
Newsgroups: comp.graphics
Subject: Wanted, raster to vector conversion

I am looking for a program to convert MS Windows BMP files to HPGL or
another vector format.  The problem is that Mathcad 3.1, while being
a Windows program, only supports HPGL graphics file importing.  The
bitmap data is black and white line art.  Your response by e-mail
would be appreciated.  I will summarize in a post.

RICK RATEICK
UNIVERSITY OF NOTRE DAME
RICHARD.G.RATEICK.1@ND.EDU    RRATECK@IRISHVMA
Newsgroups: comp.graphics
From: thite@micrografx.com (Tom Hite)
Subject: Re: Mapping raster pictures on 3d models?
Organization: Micrografx, Inc.
X-Newsreader: Tin 1.1 PL5
Distribution: comp
Date: Wed, 27 Jan 93 15:03:18 GMT

To do so, texture map the big map onto the vertices of the head mesh.
You'll have to prefigure the mapping coordinates for each vertex such that
the map falls nicely in place, but that should work fine.

This is really just to say texture mapping is NOT limited to simple
tiling methodology.  Or, maybe it is, but you have a big tile this time.

Standard Disclaimers apply.
thite@micrografx.com
Newsgroups: comp.graphics,comp.sys.hp
From: meyer@geomatic.no (Harald Martens Meyer)
Subject: Good books on HPGL??
Organization: Geomatic a.s, Norway.
Date: Tue, 26 Jan 1993 15:13:59 GMT

I'm going to program an interface for HPGL, anybody know any good
books for this??

  2
HM
--
Harald Martens Meyer    | Geomatic a.s       |      #_O_#      Powder
Email:meyer@geomatic.no | PO.Box 165 Skoyen  |    (/ _|_ \)     Snow
Tel: +47 2 50 43 30     | N-0212 OSLO 2      |     \/   \/       Is
Tfx: +47 2 50 05 55     | NORWAY             |      \   /  Simply the Best!
Newsgroups: comp.graphics
From: geoffrey@cosc.canterbury.ac.nz (Geoff Thomas)
Subject: SCANLINE algs src code wanted
Organization: University of Canterbury, Christchurch, New Zealand
Date: Fri, 22 Jan 1993 00:28:27 GMT


Does anyone have or know where I could get hold of source
code for a scanline renderer (PC based)?

Thanks in advance,
Geoff Thomas			geoffrey@cosc.canterbury.ac.nz
Computer Science Dept.
University of Canterbury
Private Bag				+-------+
Christchurch				| Oook! |
New Zealand				+-------+
Newsgroups: comp.graphics