HDTenEightyP/NetNews huggingface dataset:
From: Harv@cup.portal.com (Harv R Laser)
Newsgroups: comp.sys.amiga.graphics
Subject: Re: JPEG compressions
Date: Sat, 23 Jan 93 06:43:21 PST
Organization: The Portal System (TM)

>I move a lot of 24 plane pictures (raytraced) using floppydisks and am therefo
r
>e very interrested in keeping the files as short as possible. I believe that t
h
>e best compression today is offered by JPEG's but, as you all know, the JPEG s
t
>andard involves removing data on a user-based rate.
>
>I'd like to keep my pics as intact as possible so I wonder if a rate of 100 (t
h
>e maximum allowable rate) removes any data or if it just compresses? I think t
h
>at a JPEG file using compression rate of 100 still would be smaller than most 
o
>ther formats, or?
>
>Any suggestions welcome!
>
>---
>
>   Per Flodin   pflodin@etek.chalmers.se

If you use the 100 quality setting with a JPEG compressor you should see
about a 5-1 compression ratio (turning a 1 MEG IFF24 into a 200K JPEG
file). At a setting of 50 you'll see about a 10-1 compression ratio
and at a setting of 32 or so you'll see about a 20-1 compression ratio.
What you'll really need to do (since you have your pictures and we don't :)
is to try compressing one at various JPEG settings and then load them
back into you computer and hopefully be able to look at them on a real
24 bit RGB analog display, such as an Impulse Firecracker24 or a
Centaur OpalVision or something equivalent, and study them carefully
and see if you notice any loss. 

The amount of loss noticable, even at 20-1 comression, can often be
so little, that you'll find that much compression acceptable for
storage. Some images will look perfectly good and others may show
the evidence of loss... it entirely depends on the image, whether it
has wide/broad areas of smooth gradiated color, or whether it's 
a more "busy" image or what. 

This is really something you're going to have to mess around with
yourself and then study the results before you commit yourself to
JPEGging your files and then throwing the IFF24 versions away.
But hell, floppies are cheap and you can always just store them away
for future use if you decide that even at the highest quality setting,
JPEG is still affecting your images visually.  It'll just depend on
how critical your eyes are and what your images contain. 

But overall, I've found JPEG to be highly intelligent and for
casual viewing of a JPEG-compressed image, even at 20-1, it takes
some close study, often zooming in on an image, so see where the
compression artifacting occured. 

Harv
From: mcouch@amiganet.chi.il.us (Marc Couch)
Newsgroups: comp.sys.amiga.graphics
Subject: LIGHTWAVE MAILING LIST
Date: 24 Jan 93 05:22:12 CST
Organization: Amiga Network Information Systems

Someone out there subscribe to the Lightwave/toaster mailing list?

I have tried to subscribe, but I think I have the wrong address.. WHAT IS THE
SUBSCRIPTION ADDRESS??

Also.. Besides Imagine and Lightwave.. what other mailing lists are there??
Newsgroups: comp.sys.amiga.graphics
From: dino@alex.com (Dino Fancellu)
Return-Path: <news>
Subject: Re: Imagine 3.0 WHO CARES!
Organization: Alex Technologies Ltd, London, England
Apparently-To: mail2news@demon.co.uk
Date: Fri, 22 Jan 1993 11:07:40 +0000

In article <C17sGE.KIn@fc.hp.com>, koren@fc.hp.com (Steve Koren) writes:
|> Sam Hulick (shulick@navajo.ucs.indiana.edu) wrote:
|> 


|> Real3D is also very expensive.  I could afford Imagine just to plink
|> around with as a hobby, but Real3D is definitely out of _my_ price range
|> anyway.  I remember seeing a mail-order add for it (actually it isn't
|> released yet, I believe), which was selling it for something like $599.
|> (They have V1.4 for around $200, which is about what Imagine 2.0 is
|> also).

Real 3D 1.4 is going to renamed Real 3D Classic and cost about 70 pounds=$105

|> 
|> (I saw a demo-version of real-3D, and I actually wasn't all that impressed with
 it.  Also I have seen some
|> images rendered with real-3D and wasn't impressed with them either, but
|> that probably has little correlation on what the product _can_ do).
|>

What version did you see? Real 3D can do FAR more realistic images than Imagine
due to its solid modeling, no nasty polygons. I've used Imagine 2.0 but had to 
throw it away as it handled like a pig and gave consistently unrealistic images.
No doubt it can look good but it seems to take so much effort. With Real 3D it
is so easy to create realistic images in a very intuitive manner.
 
|> Aladdin sounds OK too, but I've only seen the "Amazing Amiga" review of
|> it, not the real thing.
|> 

You can get some good images from Aladdin but it suffers from the same drawbacks
as Draw 4d pro. i.e. it makes Imagine's interface a pleasure to use in comparison,
due to its bizarre construction.

|>   - steve
|> 
|> BTW - if you get Imagine, you almost _have to_ get Essence.  The two
|> taken together are a lot nicer than Imagine alone.  I wasn't all that
|> thrilled with Imagine until I got Essence, and suddenly I like Imagine a
|> lot more :-).  Anyway, I don't think you can make a blanket statement
|> that Real3D 2.0 is better than Imagine.  It probably does some things
|> better, sure.  But also Imagine does some things better than R3D.  Just
|> depends on what you want.  Also, Imagine has tremendous industry support
|> right now in terms of PD and commercial objects, algorithmic textures,
|> etc.


Have you seen the specs for Real 3d 2.0? There are amazing. The specs for
Imagine 3.0 however seem little more than a bug fix with a few things it really
should have in the first place. Real 3D 2.0 is a MAJOR rework with many 
professional features. I'l repost the feature list if you like.


Dino
From: bobl@bobsbox.rent.com (Bob Lindabury - SysAdmin)
Newsgroups: comp.sys.amiga.graphics
Subject: Re: LIGHTWAVE MAILING LIST
Date: 26 Jan 93 12:34:38 GMT
Organization: Raven Enterprises -- Piscataway, NJ USA
X-NewsSoftware: GRn 1.16f (10.17.92) by Mike Schwartz & Michael B. Smith

In article <1993Jan26.031905.23400@sbcs.sunysb.edu> dtiberio@engws10.ic.sunysb.edu (David Tiberio) writes:
> In article <mcouch.0pa8@amiganet.chi.il.us> mcouch@amiganet.chi.il.us (Marc Couch) writes:
> >Someone out there subscribe to the Lightwave/toaster mailing list?
> >
> >I have tried to subscribe, but I think I have the wrong address.. WHAT IS THE
> >SUBSCRIPTION ADDRESS??
> >
> >Also.. Besides Imagine and Lightwave.. what other mailing lists are there??
>
>       Well, my site mirrors the lightwave and imagine mailing list and
> I can subscribe you...but keep in mind that you will be getting mail 1-2 days
> later than everyone else, and you would need to post to lightwave@bobsbox.rent.com
> if you wanted it to actually reach the list. I think that is the correct
> address.
>
>
> --
>    Amiga Graphics BBS  xamiga.linet.org (516) 473-6351  24 HRS 14.4 v.32bis
> ixemul.library mpeg_play mpeg_movies jpegs gifs 3d_objs music_mods adobe_fonts
> ONLINE: Louis Leclerc's Japan Yes and related files about our trade relations.
>        login: ANONYMOUS password: GUEST for unrestricted downloads

PLEASE DAVE, DO NOT SUBSCRIBE MEMBERS TO LISTS YOU DO NOT OWN!  This is
not a vanity thing.  It can cause terrible problems with bounces.

I will detail in e-mail.

--
 Bob Lindabury

InterNet: bobl@bobsbox.rent.com                | Raven Enterprises
    UUCP: ...rutgers!bobsbox!bobl              | 25 Raven Avenue
  BitNet: bobl%bobsbox.rent.com@pucc           | Piscataway, NJ 08854
  Home #: +1 908/560-7353                      | +1 908/271-8878
From: lgibb@burner.com (Lance Gibb)
Newsgroups: comp.sys.amiga.graphics
Followup-To: comp.sys.amiga.graphics
Subject: Re: DCTV questions +
Date: 24 Jan 93 08:29:54 MST
Organization: The Back Burner BBS (via C-Net Amiga)

On Sun 24-Jan-1993  8:28a, Mike Bandy wrote:
MB> lgibb@burner.com (Lance Gibb) writes:
MB> >On Thu 21-Jan-1993  7:53a, Arthur Entlich wrote:

MB> >I can't answer your 2002 question, but DCTV will let you pass through
MB> your
MB> >video to be used on the 1960.

MB> Really?  I have DCTV and a 1960 and was surprised to see that the 1960
MB> doesn't have a composite input.

That's not what I meant - the DCTV unit will allow your RGB video to be
passed through to whatever RGB monitor you are using - in his case the 1960. 
I believe that was the jest of his question.

--- Via UCI v1.22 (C-Net Amiga)

Newsgroups: comp.sys.amiga.graphics
From: dino@alex.com (Dino Fancellu)
Return-Path: <news@alex.com>
Subject: Re: 1084 help.
Keywords: Monitor
Organization: Alex Technologies Ltd, London, England
Apparently-To: mail2news@demon.co.uk
Date: Tue, 26 Jan 1993 10:21:46 +0000

In article <1993Jan25.202849.3958@oucsace.cs.ohiou.edu>, albrnick@redskins.ent.ohiou.edu (albright) writes:
|> I was wondering if anyone out there can help me with a problem I'm having
|> with my 1084 monitor.  After the first few mins that it is on it will make
|> a clicking sound and then black out.  If I tap/hit it it will occasionally
|> go back on, but it'll almost definately black out again, and then be that
|> much less likely that it'll come back on again.  It does it with great
|> frequency now and I cannot afford to get another monitor.  I'm using my
|> TV in conjunction with the A520 now.   
|> 
|> Any help would be gratly appreciated.
|> 
|> Thanx,
|>    -Nick

I get EXACTLY the same thing happening to mine so would be interested to know.
I use it mainly for watching TV whilst on my 3000 and its annoying not being able
to do both at once. I'm so deprived, boo hoo.

Dino.
Newsgroups: comp.sys.amiga.graphics
From: elauren@hubcap.clemson.edu (Addison Laurent)
Subject: Re: hubcap ftp gone??
Organization: Clemson University
Date: Tue, 26 Jan 1993 19:07:31 GMT

john@heights.demon.co.uk (John Shiali) writes:

>> I read an article sent to the imagine mail list that indicated that the site
>> was closed because some software pirates were using the site to exchange
>> software.

>And that's a good reason to close a site down? They *could* have just
>sorted out their security (which would have stopped the problem in the
>first place), and have been thankful that the loophole had been found.

Well, I guess he could have. But I think he was worried about the legal
liability that he could incur. 
But he could do just what he did - kick all the stuff off, and don't
have to worry about it again.
I can't fault him. The system is his responcibilty - if he thought that
was necessary, then I can't (in fairness) critize that much. 
He has said he's trying to get funding to have a stident moderate the
group - but doesn't think that there will be much chance of that.
 

>They're simply punishing users rather then getting their directory
>permissions fixed.

We are? (Notice, I'm at HUBCAP) Yeah, well, I guess one might see it
that way. Personally, I'd like to find the idiots who did this in the
first place. And lose my temper and resort to physical violence.

>-- 

>  John ..   InterNet  - john@heights.demon.co.uk
>            FidoNet   - 2:253/500.9

-- 
ELAUREN@HUBCAP.CLEMSON.EDU
I hate .sigs. 
Newsgroups: comp.sys.amiga.graphics
From: waung@mprgate.mpr.ca (William Waung)
Subject: Re: Avid magazine ??
Organization: MPR Teltech Ltd., Burnaby, B.C., Canada
Date: Thu, 21 Jan 93 19:31:25 GMT

In article <19866@mindlink.bc.ca>, Manjit_Bedi@mindlink.bc.ca (Manjit Bedi) writes:
|> I read that the magazine was sold it one of these groups. I have a
|> subscription
|> to the "Amiga Video Journal".  What did I receive in the mail today a copy
|> of the "Video Toaster User" magazine.  Can anyone comment on this?
|> 
|> 
|> Sharp looking magazine but I do not want to drool all over this Toaster
|> stuff; I like my Amiga 3000 just fine and I don't need to start getting
|> Toaster envy ;-)
|> --
|>         Manjit Bedi
|>                 ( Manjit_Bedi@mindlink.bc.ca or manjit@inde.bc.ca )
|> 

The same thing happened to me yesterday. I sure hope Amiga Video Journal still exits.
(Even though they are about 3 months behind on issues.) I also don't have a Toaster
and would rather get a magazine that concentrated on the non-Toaster aspects of 
Amiga video.

William Waung
Newsgroups: comp.sys.amiga.graphics
From: rtillery@crash.cts.com (Rick Tillery)
Subject: Re: Digiview to 24bit Problems
Organization: CTS Network Services (crash, ctsnet), El Cajon, CA
Date: 24 Jan 93 11:17:52 PST

Don - Hirschfeld (DonH@cup.portal.com) wrote:
: 	I just tried to use my Digiview after about 2 years of it collecting
: dust. I wanted to digitize some of my slides, save as an RBG file, and then
: convert it to Targa and JPEG. When I view the result in HAM with Digiview,
: the color balance was right on. However, viewing the saved RGB file with
: DCTV or converting it to Targa and viewing it on my 24bit PC card made the
: image very green and impossible to restore to its original colors.
: 	Could this be because Digiview saves as a 21bit file instead of 
: 24bits? Is there something I should do before saving to adjust the color for 
: the other formats? I wanted to get the maximum resolution out of the camera
: and use my own work for backgrounds or texture maps.
:

I don't know if the results you saw were caused by the 21 bit file format,
but that is one of the formats DV saves in.  I understand that it will save
in 24 bits too, but I don't know what the setting is.  However, you CAN
load the 21 bit file and convert it to 24 bits with ADPro (DV21 loader).

Rick Tillery

 __________________________________________________________________
|                                                                  |
| Rick Tillery ( RTillery@crash.cts.com  RTillery@cup.portal.com ) |
|  Soon available for an Engineering or programming job near you!  |
| --- The displaced Razorback! Wooo Pig Soooie!  Go Hogs Go! ---   |
|      Amiga - The underdog computer with a superhero's power.     |
| N.I.N.J.A.J.I.S. - "I refuse to donate an aloft fornication."-RT |
|__________________________________________________________________|
From: cryan@rhutch.lns.pa.us (Chuck Ryan)
Newsgroups: comp.sys.amiga.graphics
Subject: IFF Format
Date: 24 Jan 93 19:25:21 GMT
Organization: Rabbit Hutch Public Access Unix

Does anyone have a specification for the IFF graphics/sound format that 
could be posted here? I've decoded most of the format, but there are some 
mystery areas. I'd appreciate any additional info I can find! Thanks!
From: badger@cs.arizona.edu (Brian S Badger)
Newsgroups: comp.sys.amiga.graphics
Subject: Re: What are we supposed to do for 1024*768?! (reg. Amiga World art. )
Date: 21 Jan 93 21:28:42 GMT
Organization: U of Arizona CS Dept, Tucson

In article <1jlfbcINNp3m@function.mps.ohio-state.edu> jgolds@math.ohio-state.edu (Jeffrey A Golds) writes:
>But what good are refresh rates
>of say 20 htz if you want to do vidoe production? doesn't this imply
>you are limited to 20 frames per second?  Worthless...
>30 frames per second is minimal and more would be even better.
>
>Just a few thoughts.
>Jeff
>
>(I hope I'm not too wrong about this stuff, I just bought my A3000)

Not too wrong:
You are restricted to only one type of refresh rate for video production: NTSC (or PAL for the rest of the western world, excepting SECAM countries)
That is a fixed standard: there is no way in hell to display more than the 480
lines that NTSC gives you.  So the amiga, maximizes horizontal resolutions in 
these modes (35ns?) as much as possible.  Sure, it would be nice to have an 
800X600 screen mode with a high refresh rate; it just wouldn't matter as far as video is concerned.  The most C= can do for video is up horizontal res (17.5 ns next stop) and color (24 bit also next stop)   

Brian Badger
badger@caslon.cs.arizona.edu
---This man has no signature---  


Xref: sparky comp.sys.amiga.graphics:8954 comp.sys.amiga.misc:20338
From: ps296au@sdcc4.ucsd.edu (Steven Cobb)
Newsgroups: comp.sys.amiga.graphics,comp.sys.amiga.misc
Subject: Re: X-Windows and A4000 questions
Date: 22 Jan 93 00:05:32 GMT
Followup-To: comp.sys.amiga.graphics
Organization: University of California, San Diego

In article <1993Jan20.044341.27177@murdoch.acc.Virginia.EDU> kws1x@cyclops.micr.Virginia.EDU (Kenneth W. Smith) writes:
>
>	Hello, Fellow Netters!
>
>	I have a few questions for any A4000 owners who have an X-Windows
>emulation package (ie the one from GfxBase?).  How well does
>this or do these package(s) work(s)?  How is speed compared
>to some of the (cringe) PeeCee packages?  Do any take advantage of
>the AGA chips or propose to do so in the future?

We use a 3000 with GfxBase X and ethernet and it does quite well.
Running it monochrome is plenty fast. Running in color is a bit
slower.  I would imagine that the PC X is going to be slower due to
VGA issues.  On a 4000 Amiga X should be great. 

	Potential problems: I don't know if there is an AGA version
yet, sou you may be limited to 16 colors.  Also using a standard
display you are limited to say 800 X 500 or so (depending on how
you push overscan).  This is a bit small for most X apps -- BUT:
1) you can use a large bit map (1200X1200) and quickly scroll around
(works great) or 2) get GfxBase display board that allows 8 bit
color and large screens.  I haven't tried the latter but I
understand that it's quite nice.

Anyway, It's very stable and very usable.  Another plus is that you
can record to video (or genlock) which is impossible or _very_
expensive on other systems. Great for making training tapes for Sun
applications etc.

Good Luck,
-- 
  \________/\      ______________________    __________________________________
Steven Cobb  \    /   scobb@ucsd.edu     \__/                Graduate School:
              \  /                                           It's not a job...
         UCSD  \/ ision Lab                                  It's an indenture.
Newsgroups: comp.sys.amiga.graphics
From: nedwie@jec305.its.rpi.edu (Erik Jason Nedwidek)
Subject: Re: Babylon 5
Reply-To: nedwie@rpi.edu
Organization: Rensselaer Polytechnic Institute, Troy, NY.
Date: Fri, 22 Jan 1993 03:47:36 GMT


  Well, for probably not the last time, here it is.... 

	Babylon 5 is a sci-fi movie being produced by Warner Bros.  It is 
scheduled to air sometime the week of February 22 (WWOR will broadcast it
8pm the 23rd) and the coverage is about 100% of the US and scattered about
in Canada.  It will also be downlinked by satalite (You can get this info 
through rec.arts.tv.sci-fi).  If the response to the movie is good WB will
put in a series order and it will start airing in the fall.  The reson it
is getting publicity on the Amiga bands is that all the special fx are 
being done by Foundation IMaging (Ron Thorton and friends) using a network
of 8 A2000/040 Toaster stations.
	Try directing questions to rec.arts.tv.sci-fi someone there should
be able to tell you where you can get a FAQ list.

-- Erik
+--------------------------------------------------------------------------+
| I really would like to Email all my friends, but for  | Erik Nedwidek    |
| some reason someone named Mailer Daemon keeps sending | nedwie@rpi.edu   |
| it all back to me.                                    |                  |
+--------------------------------------------------------------------------+
Newsgroups: comp.sys.amiga.graphics
From: pooler@vccsouth14.its.rpi.edu (Robert Peter Poole)
Subject: Re: GIF viewers and GIF89a
Organization: Rensselaer Polytechnic Institute, Troy, NY
Date: Mon, 25 Jan 1993 16:37:57 GMT


ViewTek (latest version is 1.03) will handle true GIF89a images correctly.
I don't know if it will display comment blocks, but I am fairly sure it will
not bomb on GIF89a files with embedded comments.

-- Rob Poole
pooler@rpi.edu
From: cgould@oracle.uucp (Colin A. Gould)
Newsgroups: comp.sys.amiga.graphics
Subject: Re: LIGHTWAVE MAILING LIST
Summary: list of lists
Date: 25 Jan 93 22:10:12 GMT
Organization: Oracle Corporation, Redwood Shores CA
X-Disclaimer: This message was written by an unauthenticated user
              at Oracle Corporation.  The opinions expressed are those
              of the user and not necessarily those of Oracle.

In article <mcouch.0pa8@amiganet.chi.il.us> mcouch@amiganet.chi.il.us (Marc Couch) writes:
>Someone out there subscribe to the Lightwave/toaster mailing list?

>Also.. Besides Imagine and Lightwave.. what other mailing lists are there?

To subscribe to the lightwave list, mail to lw-request@bobsbox.rent.com
asking to be added (providing your email address, of course :-) )

There are other lists out there, I know of some David Tiberio was
administrating, or at least was a high-level interface to- here's a
recent list. You can subscribe to non-xamiga lists through dave's
stuff, but he just forwards it, so it's quicker to mail the lw-request
above.

David said something recently about taking some time off from the
list, but the subscribing etc. should be automatic. I'm still getting
(a little) commodore@xamiga stuff, at least...

---------8<-------8<---------8<------------8<-----------

------------------ Via Amiga Graphics BBS (516) 473-6351 ------------------

 David Tiberio               //  Amiga Graphics BBS  (516) 473-6351 v.32bis
 dtiberio@xamiga.linet.org  //     Sponsored by Total Productions & DDD MEN
 Long Island, New York    \X/    USENET - 3D - Music - Fonts - Pics - Utils

    MAILING LISTS:

    NEW Aladdin 4D          - post to aladdin@xamiga.linet.org
        America             - post to america@xamiga.linet.org
        AMOS                - post to AMOS@xamiga.linet.org
        Commodore-Amiga     - post to Commodore@xamiga.linet.org
        Emplant             - post to Emplant@xamiga.linet.org
        Excelsior! BBS      - post to Excelsior@xamiga.linet.org
        Imagine 3D          - post to imagine@sp.paramax.com
        Lightwave 3D        - post to lightwave@bobsbox.rent.com
    NEW SUNY Press          - post to SUNY_Press@xamiga.linet.org
        United We Stand     - post to United@xamiga.linet.org


    For help, send the following line in the body of your text, and replace
    username with your account name, and domain with your computer address,
    and send this to subscribe@xamiga.linet.org.

#subscribe.help username@domain;
--
From: lahurst@unix1.tcd.ie (Leon Hurst)
Newsgroups: comp.sys.amiga.graphics
Subject: MorPhus
Date: 27 Jan 93 14:44:25 GMT
Organization: Trinity College, Dublin

What is Morphus.
What are its features.
Is it any good.

Leon