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UPDATE.MSG
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1990-02-01
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4KB
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Hello everyone.
I just uploaded a new version of Zed3D. Zed3D is a handy
reference for real-time 3D graphics. It includes most proofs as well as
some pseudocode. Zed3D cover several topics, among which are:
texture mapping, gouraud shading, z-buffering, linear & affine mathematics,
quaternions, rendering a polygon, triangulation of a polygon,
generating correctly oriented normals for polyhedra and more.
It also now includes an example 3d graphics engine (basic), with
source code.
WHAT'S NEW OR A RECENT ADDITION:
Splines & anti-aliasing.
Here follows the "Getting Zed3D and reading it on my system" FAQ.
==============================================================================
HOW DO I GET IT?
My official homepage is up since Jan 17th 1996. It should stay there until
at least April 1997. The page is http://www.cs.mcgill.ca/~zed/. On it, you
will find a downloadable version of Zed3D, as up to date as I can make it.
Note that on that homepage, you will also find some useful links to other
pages that might help you with the Zed3D package, such as de-zipping tools
and PostScript viewing tools.
The file is no longer officially available through FTP.
THE FILE I GOT WAS GARBLED, WHAT HAPPENED?
If it's only the .PS file that is garbled, you have a copy of version 0.41
(it was unfortunately garbled at that time).
If you are getting errors as you decompress the files, you might be using
the wrong decompressing utility. The archive is compressed using PKZIP version
2.04g.
If you got it off FTP, you might have used an ASCII transfer. Make sure you
are using a BINARY transfer mode (this can normally be specified by typing
bin on your ftp software). If you transfered the filed through a stupid
telnet, it might also have gotten garbled. Other intervening tools can
also interfere. For instance, on a laptop I tried, the "rcp" program
required a special option for "binary".
I AM ON UNIX, I DECOMPRESSED IT AND ONLY GOT A SINGLE (UNREADABLE?) FILE,
WHAT IS WRONG?
You are probably using "gunzip" instead of "unzip". Here, I will quote Jeff
Epler:
----8<-----cut here--------------------------------------------------------
I don't know about anything else in this message, but it's possible
that this person used 'gunzip' on a pkzip archive -- Gunzip minimally
understands .zip files with deflated entries, but only extracts the
first file. They should use 'unzip' from info-zip, source from
ftp.uu.net:/pub/archiving/zip/unzip512.tar.Z , and it'll take some
knowledge of unix to compile and install it.
----8<-----cut here--------------------------------------------------------
I WOULD LIKE TO GET AN EXECUTABLE VERSION OF UNZIP, HOW DO I DO THAT?
Binaries for various platforms are available at
http://quest.jpl.nasa.gov/Info-ZIP/UnZip.html
I CANNOT READ ANY OF THE FILE FORMATS INCLUDED IN YOUR PACKAGE, COULDN'T
YOU PUT SOME OTHER FORMAT IN THERE?
Tough luck. :)
Really, you should be able to find GhostView or GhostScript somewhere. See
the next question.
WHAT VIEWERS CAN I USE TO VIEW ZED3D?
If you have access to FTP and you are using MS Windows, you can
get Microsoft's Word file viewing tools:
ftp.microsoft.com/softlib/mslfiles/wordvu.exe (for Windows 3.1 or later)
ftp.microsoft.com/softlib/mslfiles/wd95view.exe (for Win 95)
ftp.microsoft.com/softlib/mslfiles/wd95view.txt (I dunno what that is)
ftp.microsoft.com/softlib/mslfiles/wd1153.exe (White paper, whatever
that is)
Of all of these, I only checked out Wordvu on Windows 3.1, which worked
fine for me.
You can also get GhostView + GhostScript for various platforms. Try this
web page:
http://www.cs.wisc.edu/~ghost/index.html
I DON'T HAVE ACCESS TO FTP!
For those of you without FTP access, there are a number of mail services
you can use to do any kind of FTP operations. You could try mailing to these
addresses:
ftpmail@inet-gw-2.pa.dec.com
bitftp@pucc@princeton.edu
The body of the letter should be "help", it will then explain how it works.
Another one that I heard of, but I think it works differently is:
ftpmail@decwrl.dec.com
I DON'T HAVE ACCESS TO THE INTERNET!
I DON'T HAVE ACCESS TO THE WEB!
I DON'T HAVE ACCESS TO MAIL!
Tough luck.
===========================================================================
Sincerely yours,
Zed
zed@cs.mcgill.ca