HDTenEightyP/NetNews huggingface dataset:
From: lgibb@burner.com (Lance Gibb)
Newsgroups: comp.sys.amiga.graphics
Subject: Re: Banding Still Imminent in AGA 256,000 color mode!
Date: 19 Dec 92 07:38:36 MST
Organization: The Back Burner BBS (via C-Net Amiga)

JH> >henigma@ac.dal.ca writes:
JH> >
JH> >>  I just compared 256 color modes with AGA HAM8 256K+ colors, and I
JH> still see
JH> >>banding in the 256,000 color mode, why?? With all those colors 
JH> >>shouldn't the banding disappear?

Even with my DCTV (approx. 2-4 million colors) I still get banding depending on the picture.  The only way your gonna get rid of it completely is to get a 32bit display ;-)

--- Via UCI v1.17 (C-Net Amiga)

Newsgroups: comp.sys.amiga.graphics,comp.sys.amiga.hardware,comp.sys.amiga.programmer
From: meixner@rbg.informatik.th-darmstadt.de (Matthias Meixner)
Subject: Re: 800x600 on A4000 - HOW?
Date: Tue, 15 Dec 1992 16:47:08 GMT
Organization: TU Darmstadt

In article <1992Dec13.223905.10671@crash>, rtillery@crash.cts.com (Rick Tillery) writes:
> I've got lots of GIFs and JPEGs in 800x600 (or that will fit on that size
> screen but not on 640x480) and there seems to be no view that will support
> that screen type.  I've converted them to 256 color or HAM8 IFFs and tried
> Multiview, and tried to use ViewTek 1.3 with no success.  All I get is a
> "normal" screen I have to scroll around in.  Even ADPro won't open a screen
> of that type.  What gives?
> 
> Rick Tillery
> 
Have you selected Promotion in IPrefs ?
Maybe that's the reason that you only get the normal screens.


- Matthias
From: jkrutz@burner.com (Jamie Krutz)
Newsgroups: comp.sys.amiga.graphics
Subject: Re: How to change WB 2.0 border color seperatly?
Date: 17 Dec 92 08:48:36 MST
Organization: The Back Burner BBS (via C-Net Amiga)

Why not just make your workbench into a backdrop.  Presto, no borders at all.  Then, if your background picture needs a border or frame or whatever, add one to the picture itself using a paint program.  Just a thought...
 -Jamie

--- Via UCI v1.17 (C-Net Amiga)

Xref: sparky comp.sys.amiga.graphics:8043 comp.sys.amiga.hardware:21596 comp.sys.amiga.multimedia:1601 comp.sys.amiga.programmer:17409
From: dmiller@beta.tricity.wsu.edu (David L. Miller)
Newsgroups: comp.sys.amiga.graphics,comp.sys.amiga.hardware,comp.sys.amiga.multimedia,comp.sys.amiga.programmer
Subject: Drivers for GCC ColorFast Film Recorder
Date: 16 Dec 92 00:46:14 GMT
Organization: Washington State University Tri-Cities, Richland
Originator: dmiller@beta.tricity.wsu.edu

Does anyone have or know of an Amiga driver for the GCC ColorFast FR12382
Digital Film Recorder?
-- 
*****************************************************************************
David L. Miller                       Internet: dmiller@beta.tricity.wsu.edu
Systems Programmer/Network Analyst      BITNET: MILLERD@WSUVM1
Washington State University Tri-Cities    UUCP: ...!yoda!dmiller
100 Sprout Road                          
Richland, WA 99352                       Phone: (509)375-9245
*****************************************************************************
Newsgroups: comp.sys.amiga.graphics
Subject: Re: MONITORS FOR A3000 FOR 2.1's 800X600 mode
From: rmwhapham@miavx1.acs.muohio.edu
Date: 11 Dec 92 13:41:53 -0500
Organization: Miami University Academic Computer Service"

In article <1992Dec9.231547.249@tc.cornell.edu>, stlombo@eos.acm.rpi.edu (Steve J. Lombardi) writes:
> HELP! I just purchased an A3000 with 2.1 OS.  I would like to hook
> up a 15 or 16 inch monitor that will display the 800X600 mode
> without flicker. My 3000 has not arrived yet, and I'm hoping
> to purchase a monitor before it does. As I don't get to read this 
> group often a reply via email would be appreciated. I will summarize
> and repost any and all responses here. Thanks. Ohh. I guess I haven't
> really stated a question! Can someone reccomend a decent monitor
> for under 1000$ that will support 800X600 without flicker?? What is
> the scan rate produced by this mode?? Thanks in advance.
> 
> --
> Steve Lombardi
> stlombo@acm.rpi.edu
> -- 

800x600?!  I hope you can prove me wrong, but I don't think 800x600 is an
offered resolution (an overscan setting, perhaps?).  Anyways, ANY multisync
monitor can handle this resolution (including CBM's 1950 and 1960).  To have
this flicker-free, output would have to be 31.xx kHz (the output of the A3000's
de-interlacer).

Rob Whapham
Newsgroups: comp.sys.amiga.graphics
From: mlelstv@specklec.mpifr-bonn.mpg.de (Michael van Elst)
Subject: Re: Alpha workstation plays anims
Organization: Max-Planck-Institut f"ur Radioastronomie
Date: Tue, 15 Dec 1992 10:51:00 GMT

In <104805@bu.edu> kiki@bass.bu.edu (Keith Baccki) writes:
>	If you're running X, keep in mind that slight bit of overhead
>involved. :) I'm not sure what the implications are of running an anim
>"native" to the Amiga on different display hardware (i.e. display time
>for iff file types, etc.), but seeing anims under xanim on a
>DECstation 5000's with 30-40 MHz R3000's leads me to believe there's
>considerable overhead all around - with a couple heavy background
>processes, of course :) Still, considering what I've seen on my
>68000 A500...   

Well, of course there is overhead, but the newer X11 servers have
proven to be quite fast. Most of the overhead comes from an
extra copy of each frame as the data has to be moved to a different
process (xanim doesn't use the shared memory extension of X11R5).

The 40MHz DECstation btw runs animations about twice as fast as an
A3000. This is quite independant of depth as the display is always
an 8bit display.

Regards,
-- 
Michael van Elst
UUCP:     universe!local-cluster!milky-way!sol!earth!uunet!unido!mpirbn!p554mve
Internet: p554mve@mpirbn.mpifr-bonn.mpg.de
                                "A potential Snark may lurk in every tree."
Newsgroups: comp.sys.amiga.graphics
From: Adam Lawrence Salter <adam@zooid.guild.org>
Subject: Help! Need info on 2080 monitor!
Organization: The Zoo of Ids
Date: Thu, 17 Dec 1992 22:01:51 GMT


  Hi, I need to know how good the Amiga 2080 High Persistance monitor is for 
use as an RGB monitor for a SNES video games system and more importantly how 
good it would be as a TV (throught the RCA plugs). How bad is the blur, 
streak, after-image, whatever from the High Persistance? Would I be better of 
with a Commodore 1084S? 
 
 
                                                          Thanks! 
                                                         Adam Salter 
 
REPLY VIA PRIVATE E-MAIL! adam@zooid.guild.org 
DO NOT POST REPLIES!!!
Organization: University of Maine System
Date: Saturday, 12 Dec 1992 02:03:15 EST
From: <IO20197@MAINE.MAINE.EDU>
Newsgroups: comp.sys.amiga.graphics
Subject: Looking for...

I am looking for a couple of programs a user on my BBS asked me to get.  One
of them is a Star Trek based (?) screen blanker.  He says such a thing exists
for the IBm and Mac.  Why not Amiga too?  Also, is there a program that will
scroll text up the screen like a genlock?  PD or Shareware..
Newsgroups: comp.sys.amiga.graphics
From: l115130@cc.tut.fi (Lehtonen Tero)
Subject: RTAP???
Keywords: anim
Organization: Tampere University of Technology, Finland
Date: Mon, 14 Dec 92 11:51:12 GMT



Where can I find the 'RTAP'-anim player???
From: tope@enea.se (Tommy Petersson)
Newsgroups: comp.sys.amiga.graphics
Subject: Re: MONITORS FOR A3000 FOR 2.1's 800X600 mode
Date: 16 Dec 92 12:21:27 GMT
Organization: Enea Data AB
X-Newsreader: Tin 1.1 PL3

rmwhapham@miavx1.acs.muohio.edu writes:
: In article <1992Dec9.231547.249@tc.cornell.edu>, stlombo@eos.acm.rpi.edu (Steve J. Lombardi) writes:
: > HELP! I just purchased an A3000 with 2.1 OS.  I would like to hook
: > up a 15 or 16 inch monitor that will display the 800X600 mode
: > without flicker. My 3000 has not arrived yet, and I'm hoping
: > to purchase a monitor before it does. As I don't get to read this 
: > group often a reply via email would be appreciated. I will summarize
: > and repost any and all responses here. Thanks. Ohh. I guess I haven't
: > really stated a question! Can someone reccomend a decent monitor
: > for under 1000$ that will support 800X600 without flicker?? What is
: > the scan rate produced by this mode?? Thanks in advance.
: > 
: > --
: > Steve Lombardi
: > stlombo@acm.rpi.edu
: > -- 
: 
: 800x600?!  I hope you can prove me wrong, but I don't think 800x600 is an
: offered resolution (an overscan setting, perhaps?).  Anyways, ANY multisync
: monitor can handle this resolution (including CBM's 1950 and 1960).  To have
: this flicker-free, output would have to be 31.xx kHz (the output of the A3000's
: de-interlacer).

You are wrong, but the problem is that it introduces YASR (Yet Another Scan
Rate) which is in the twenties. Most modern, better monitors can't sync to
that. I beleive Commodore's can, but I don't mention them in the same
sentence as "modern, better monitors":

-- 
=============================================================================
 Tommy Petersson              tope@enea.se              Enea Data AB, Sweden
=============================================================================
Newsgroups: comp.sys.amiga.graphics
From: Jason.Price@launchpad.unc.edu (Jason Price)
Subject: Re: RSI demo maker
Organization: University of North Carolina Extended Bulletin Board Service
Date: Fri, 18 Dec 1992 13:48:48 GMT

In article <1992Dec17.142533.992@ghost.dsi.unimi.it> ghidoni@ghost.dsi.unimi.it (fabio ghidoni) writes:
>This post is only to know if there is an internet site
>where I can download the RSI demo maker, and the other programs
>by RSI (vector object editor, vectorballs editor, font editor etc.)
>Thank you very much.
>
>
>		      FABIO
>		      E-Mail: ghidoni@ghost.sm.dsi.unimi.it
>


Yes.  bucsf.bu.edu    PC/AMIGA/Uploads
You have to D/L a file there that will convert the text in the demo to
English.  I'm not sure what language it is origonally in?  Looks like may
be German...anyway...I haven't had much time to play with it...


Jason Price
pricej@v3.hanscom.af.mil

--
   The opinions expressed are not necessarily those of the University of
     North Carolina at Chapel Hill, the Campus Office for Information
        Technology, or the Experimental Bulletin Board Service.
           internet:  laUNChpad.unc.edu or 152.2.22.80
From: henigma@ac.dal.ca
Newsgroups: comp.sys.amiga.graphics
Subject: Banding Still Imminent in AGA 256,000 color mode!
Date: 17 Dec 92 14:45:04 -0400
Organization: Dalhousie University, Halifax, Nova Scotia, Canada





  I just compared 256 color modes with AGA HAM8 256K+ colors, and I still see
banding in the 256,000 color mode, why?? With all those colors 
shouldn't the banding disappear?

 I did this by rendering a REAL 3D pic at 640x400 by 24bit and then converting
it to 256 colors and 256K+ colors and compared how different they looked.

 Albeit, the banding diminished in the 256,000+ color mode, but was not 
totally gone.  Maybe it was that ARTDept 2.1 does not have proper conversion
to HAM8 24 bit mode yet.  Any advice on this one is much appreciated!!! 
Newsgroups: comp.sys.amiga.graphics
From: tjuncewi@magnus.acs.ohio-state.edu (Tom M Juncewicz)
Subject: BackDrop with > 4 colors
Organization: The Ohio State University
Date: Thu, 17 Dec 1992 14:12:04 GMT

I am looking for something that'll let me load a picture in as a background on
my workbench screen.  I have BackDrop, but that only works with 4 color IFF's.
Is there an 8- or 16- color version?  Is there even a way to get 16 color WB...
I recall that none of those color-depth increasing progs like WBD and WBDepth 
could go beyond 4 bitplanes.  Why?  Does intuition do something funky that
forbids this?  BTW, I am using workbench 1.3.  Thanx in advance.
Tom


Newsgroups: comp.sys.amiga.graphics
From: ghidoni@ghost.dsi.unimi.it (fabio ghidoni)
Subject: RSI demo maker
Organization: Computer Science Dep. - Milan University
Date: Thu, 17 Dec 1992 14:25:33 GMT

This post is only to know if there is an internet site
where I can download the RSI demo maker, and the other programs
by RSI (vector object editor, vectorballs editor, font editor etc.)
Thank you very much.


		      FABIO
		      E-Mail: ghidoni@ghost.sm.dsi.unimi.it
From: jwalkup@terapin.com (Jeff Walkup)
Newsgroups: comp.sys.amiga.graphics
Subject: Color Cycling
Date: 11 Dec 92 20:14:05 PST
Organization: BBS

I want to simulate color-cycling in an animation.  The animation will be
sequence-mapped onto a 3D object.  Basically, what I need is a program
that will generate a sequence of frames containing the same picture, but
a different palette for each one.  I.E. pic.0001 will have the original
palette, pic.0002 will have every color shifted one slot, and on like
that for 32 frames.

Is there something around to do this?  Somebody wanna write one if not?

I've tried to do it by hand with DPaint, but it's next to impossible...
if not incredibly tediously mindnumbingly boring...
From: bojsen@moria.UUCP (Per Bojsen)
Newsgroups: comp.sys.amiga.graphics
Subject: Re: Gemstone refractive index data
Date: 13 Dec 92 16:23:34 GMT
        <1992Dec4.151841.25897@athena.mit.edu>
Reply-To: cbmehq!lenler!moria!bojsen
Distribution: comp
Organization: IDUN-Soft Aps.

In article <1992Dec4.151841.25897@athena.mit.edu>, Yoav O. Yerushalmi writes:

> If a program was to implement birefringence, shouldn't it also handle
> the fact that the index of refraction is a function of the frequency
> of light as well...
> Can raytracers handle prisms of different colors? Worse yet, there is also
> circular birefringence, and dispersion, and .......

Radiance handles dispersion and variable index of refraction to a certain
degree.  I haven't played with it, though, so I don't know how good the
support is.

--
"There had been something loose about the          // Greetings from Per Bojsen
 station dock all morning, skulking in            // cbmehq!lenler!bojsen
 amongst the gantries and the lines and the   \\ // bojsen@moria.home.id.dth.dk
 canisters which were waiting to be moved ..." \X/ pb@id.dth.dk
Newsgroups: comp.sys.amiga.graphics
From: rnollman@osf.org ()
Subject: Release date for Real3D
Originator: rnollman@serverx.osf.org
Organization: Open Software Foundation
Distribution: usa
Date: Wed, 16 Dec 1992 17:47:18 GMT

Does anyone know the projected release date for Real3D?  

How much will it cost?

Address and Phone of the company that makes Real3D?

Thanks.

Rich Nollman

Xref: sparky comp.sys.amiga.graphics:8103 comp.sys.amiga.hardware:21849 comp.sys.amiga.programmer:17597
From: rtillery@crash.cts.com (Rick Tillery)
Newsgroups: comp.sys.amiga.graphics,comp.sys.amiga.hardware,comp.sys.amiga.programmer
Subject: Re: 800x600 on A4000 - HOW?
Date: 19 Dec 92 17:01:21 GMT
Organization: CTS Network Services (crash, ctsnet), El Cajon, CA

In article <1992Dec15.174708@rbg.informatik.th-darmstadt.de> meixner@rbg.informatik.th-darmstadt.de (Matthias Meixner) writes:
>In article <1992Dec13.223905.10671@crash>, rtillery@crash.cts.com (Rick Tillery) writes:
>> I've got lots of GIFs and JPEGs in 800x600 (or that will fit on that size
>> screen but not on 640x480) and there seems to be no view that will support
>> that screen type.  I've converted them to 256 color or HAM8 IFFs and tried
>> Multiview, and tried to use ViewTek 1.3 with no success.  All I get is a
>> "normal" screen I have to scroll around in.  Even ADPro won't open a screen
>> of that type.  What gives?
>> 
>Have you selected Promotion in IPrefs ?
>Maybe that's the reason that you only get the normal screens.
>
I've tried it both ways, the only difference is that with Mode Promotion
de-selected I get an NTSC screen for my 640x480 pics and I don't have to
scroll up and down but I get the 640x400 (464 in overscan) DBLNTSC image
and have to scroll up and down (not by much).  That's the only mode the
damn things will open...never an 800x600 one.

Rick Tillery
Xref: sparky comp.sys.amiga.graphics:8099 comp.sys.amiga.hardware:21826 comp.sys.amiga.programmer:17576
From: peter@cbmvax.commodore.com (Peter Cherna)
Newsgroups: comp.sys.amiga.graphics,comp.sys.amiga.hardware,comp.sys.amiga.programmer
Subject: Re: 800x600 on A4000 - HOW?
Date: 16 Dec 92 21:11:41 GMT
Reply-To: peter@cbmvax.commodore.com (Peter Cherna)
Organization: Commodore-Amiga, Inc.  West Chester, PA.

In article <1992Dec13.223905.10671@crash> rtillery@crash.cts.com (Rick Tillery) writes:
>I've got lots of GIFs and JPEGs in 800x600 (or that will fit on that size
>screen but not on 640x480) and there seems to be no view that will support
>that screen type.  I've converted them to 256 color or HAM8 IFFs and tried
>Multiview, and tried to use ViewTek 1.3 with no success.  All I get is a
>"normal" screen I have to scroll around in.  Even ADPro won't open a screen
>of that type.  What gives?

If your monitor supports 800x600 interlaced (not all VGA-type monitors
do, but many multiscanning ones do), you can tell your system that by
installing the "Super72" monitor.  Simply drag the Super72 icon from
the Storage/Monitors directory to the Devs/Monitors directory.  Once
installed there, it will be invoked whenever you start your computer.
If you don't want to reboot this first time, you can simply
double-click on it to activate it.

Now the ScreenMode Prefs will list modes such as Super72 SuperHires
Lace, which is 800x600.  Whatever tool converts your IFFs may need
to be screen-mode aware to record this display ID in the IFF file, or
else the IFF viewer needs to be aware to choose this mode to show it
in.

>Rick Tillery

     Peter
--
Peter Cherna, User Interface Development Group, Commodore-Amiga, Inc.
{uunet|rutgers}!cbmvax!peter    peter@cbmvax.commodore.com
My opinions do not necessarily represent the opinions of my employer.
"Opinions enlarged to show detail"
Newsgroups: comp.sys.amiga.graphics,comp.sys.amiga.hardware,comp.sys.amiga.programmer
From: uzun@crash.cts.com (Roger Uzun)
Subject: Mpeg Player on amiga.physik requires Xwindows??  What use??
Organization: CTS Network Services (crash, ctsnet), El Cajon, CA
Date: 15 Dec 92 18:23:26 PST

The Mpeg Player uploaded to Amiga.physik seems to require Xwindows to run.
Is there a PD x11 lib available for the Amiga, or is there just the
commercial Xwindows release from Dale Luck?  I have an A4000, I expected
to run it based on the readme, the author really should state in the readme
that it requires an x11 library, and where one can get one, either
through Dale Luck and Xwindows, or a PD source.

-Roger
--------------------------------------------------------------
bix: ruzun
NET: uzun@crash.cts.com
From: cs_e375@ceres (Andrew Weakley)
Newsgroups: comp.sys.amiga.graphics
Subject: Re: DigiView AGA ?
Date: 15 Dec 1992 18:49:29 GMT
Organization: Kingston University
NNTP-Posting-Host: ceres.kingston.ac.uk
X-Newsreader: Tin 1.1 PL4

	Just a thought, but how about saving a digi-pic as 24-bit and then
loading it into AdPro2 and rendering it as Ham8? Hey-presto! Digiview AGA!

------------------------------------------------------------------------------
 Andrew Weakley - BCS 2 - Kingston University - EMail: cs_e375@kingston.ac.uk
-----------------------------------------------------------------GURU48454C50-
Newsgroups: comp.sys.amiga.graphics
From: pooler@aix02.ecs.rpi.edu (Robert Peter Poole)
Subject: Re: Banding Still Imminent in AGA 256,000 color mode!
Organization: Rensselaer Polytechnic Institute, Troy, NY
Date: Fri, 18 Dec 1992 04:35:53 GMT

In article <1992Dec17.224553.6665@gn.ecn.purdue.edu> sacke@gn.ecn.purdue.edu (Jeff Hanna) writes:
>In article <1gqs1iINNmoe@gap.caltech.edu> andrey@cco.caltech.edu (Andre T. Yew) writes:
>>henigma@ac.dal.ca writes:
>>
>>>  I just compared 256 color modes with AGA HAM8 256K+ colors, and I still see
>>>banding in the 256,000 color mode, why?? With all those colors 
>>>shouldn't the banding disappear?
>>
>>	It still bands because either a 24-bit palette is not enough,
>>you have more than 256,000 colors (really unlikely considering
>>the resolution you're rendering at), or both.  You're also
>>assuming that your color gradations act like HAM.
>>
>>	The best thing to do is to pick some kind of dithering scheme
>>that you are pleased with and stand far away from the monitor 1/2 :-).
>>Another thing you could do -- I'm guessing here at what you're trying
>>to render -- is to reduce the harshness of your lights (if you
>>have dramatic lighting or some other really high-contrast thing).  This

It's that darned human retina.  (See below.)

>>is usually the main cause of banding on my renderings even when
>>viewed on a true 24-bit display (SGI).
>>
>>	Or get an SGI Reality Engine (36-bits) :-).
>>
>
>The above is not totaly true.  It is banding because HAM8 only gives you
>64 base values per R,G, and B oppossed to 256 base values per R,G, and B in 
>24 bit color.  Does your rendering have a lot of values of one color
>(ie is there alot of red, or a lot of green, etc..)  If so, you will fill
>up the pallette with a lot of one color and cause banding.
>
>You can cause banding in 24bit color.  Make a ray trace rendering of a white
>sphere on a dark background with one sotlight shinning on it.  It will band
>all over.
>
>Jeff
>

Computer graphics relies (generally) on a linear color scheme.  That is, the
intensity of the Red, Green, and Blue guns is (supposedly) linearly related
to the RGB values stored in video memory.  The human eye is like the human
ear -- it's a logarithmic device.  The human eye can distinguish very fine
differences in intensity at low light levels, but cannot generally distinguish
two subtly different bright colors of the same hue.  I'm actually surprised
that computer manufacturers and engineers haven't tried to create a system
that used some kind of exponential correlation.  I guess this would create
some nasty compatibility problems with existing computer systems.  Oh well,
that's standardization for you.

Really, anything beyond 24 bits is a waste of hardware.  Even with 24 bits,
you're wasting most of those bits (kind of).

Rob P.
Newsgroups: comp.sys.amiga.graphics
From: sacke@gn.ecn.purdue.edu (Jeff Hanna)
Subject: Re: WB3.0's Palette Preferences tool
Organization: Purdue University Engineering Computer Network
Date: Wed, 16 Dec 92 04:44:52 GMT

In article <BzC3Mp.LtG@news.iastate.edu> barrett@iastate.edu (Marc N. Barrett) writes:
>   I finally got around to looking at some of the screen shots uploaded to
>usl.edu in /pub.  Is it me, or did Commodore blatantly copy from Apple 
>Computer with the WB3.0 Palette Preferences tool?
>
>---
>| Marc Barrett -MB-  |  email: barrett@iastate.edu
>--------------------------------------------------

I haven't seen 3.0 yet, but I can guess as to how this requester looks.  It
is probably a color wheel, correct?

If so, then it is not "blatantly copying from Apple."  Take it from a person
who has had quite a few classes in color theory, the most intuitive way to
pick colors is from a color wheel.
From: blackbelt@cup.portal.com (Ben - Williams)
Newsgroups: comp.sys.amiga.graphics
Subject: Some recent additions to Imagemaster... (9.23)
Date: Tue, 15 Dec 92 11:04:49 PST
Organization: The Portal System (TM)
Distribution: world

A short update for the Internetters:

Imagemaster now additionally provides:

   o High Quality B&W poster printing

   o InTel-format TIFF reader (MOT will be supported shortly also)

   o Image buffer transfer interface with GVP/Nova's ImageFX application


More announcements to come with 9.24.

Ben Williams
Newsgroups: comp.sys.amiga.graphics