X-Google-Language: ENGLISH,ASCII-7-bit
X-Google-Thread: f996b,4412430252ee8546
X-Google-Attributes: gidf996b,public
X-Google-ArrivalTime: 2001-07-10 04:10:00 PST
Path: 
 archiver1.google.com!newsfeed.google.com!newsfeed.stanford.edu!newsfeeds.belnet.be!news.belnet.be!feed.news.nacamar.de!rz.uni-karlsruhe.de!news.rz.uni-karlsruhe.de!not-for-mail
From: Markus Gebhard <ukgh@rz.uni-karlsruhe.de>
Newsgroups: alt.ascii-art
Subject: Re: New Jave Animation
Date: Tue, 10 Jul 2001 13:10:54 +0200
Organization: University of Karlsruhe, Germany
Lines: 81
Message-ID: <3B4AE2BE.B0068056@rz.uni-karlsruhe.de>
References: <3B475A61.5EE5C845@rz.uni-karlsruhe.de>
 <36mkktsgcgr748uksia32j3epv6e583csl@4ax.com>
 <3B4AA705.18B12455@rz.uni-karlsruhe.de>
 <3b4ad523$0$1001$edfadb0f@dspool01.news.tele.dk>
NNTP-Posting-Host: wn4-jarjar.wn4.uni-karlsruhe.de
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit
X-Trace: news.rz.uni-karlsruhe.de 994763399 15551 172.20.12.141
X-Complaints-To: usenet@rz.uni-karlsruhe.de
X-Mailer: Mozilla 4.77 [en] (Win98; U)
X-Accept-Language: en
Xref: archiver1.google.com alt.ascii-art:6611

Christian 'CeeJay' Jensen wrote:
> Btw .. how round is the circle created by the 3D renderer if you render a ball ?

The ascii 3d renderer is only able to render polygons. For all polygons
the visible parts of edges are drawn. There is no way to draw lines or
circles (this would mean I have to write a different 3d-engine). 

However, resolution is a great problem for realistic looking 3d objects
in ascii. It is ok with simple objects like a cube:

     ..      (wireframe)            ....
    :: '''...                      .:   '''...
   : :       '''...               .':         '''...
  :  :             '''...        .' :               '''...
 :   :                ...':     .'  :                    :
:'''.:.....     ...'''    :     :   :                    :
:    :     ''':'          :     :   :                    :
:    :        :           :     :   :                    :
:    :        :           :     :   :                    :
:    :        :           :     :   :                    :
:    :        :           :     :   :                    :
:    :        :           :     :   :                    :
:    :        :           :     :   :                    :
:   .:.....'''''...       :     :   :                    :
':'' :             '''... :      :  :                  ..:
 '.  :                ...''       : :            ...'''
  '. :          ...'''             ::      ...'''
   '.:    ...'''                    :...'''  (solid)
    ':.'''

The Jave logo is not very complex, but already almost too complex for my
renderer. The result is not that good when rendering it to a small size
like that:
                        .':.
              .....    .' .''.
.':..  :''''''...:.: .' .' .'
 '.'::.:::::::.''''': .' .'
  '..'::.            '..'
    '':  '''''':::.
 ....' .....   :  :    :':':
 :: :.::::''.  :  :    : : :
 ::  :.'  ''   :  :    : : :
 :: :   ....   :  :    : : :
 :: :  :...:   :  :    : : :
 ::.:  ''''    :  :    : : :
     '.        :  :    '''''
   .':::'''''''''''  ....
 .'.' :........    .: ':.'.
'.'..' :.    '''':': '. :.'.
  '    '''''''::.'''  '. ':.:
                        '..'
Rendered in a higher resolution mode:
                        ,'-.
            ___,.._   _'  ,'-,
/'\--_ +-'''   __| \ /  ,' ,-
`\ '\ . - :::==..-"\   - _'
  -.,"= \ _____     '  _,
     /   '    `  \.    ____
 + ..'______   |   |   |  ||
 || |/__: '\   |   |   |  ||
 ||  /    '\   |   |   |  ||
 || |      |   |   |   |  ||
 || |   /':    |   |   |  ||
 \/./   ''''   |   |   |  ||
    _\         |   |   `---'
  ,-` = '`-----^-''  ,/-\
 - ,' / . ==\....._ : '\ `.
\  _,' L_      ''| | \  '\ `.
 ''      '''----. -'  `.  `
                        `.,-

BTW: I use the generic shape algorithms (the green buttons in Jave) for
drawing the lines. It is no good idea to use Jave's - non generic - line
algorithm for drawing them - this will end in a much worse result.

For writing a 3D game I would rather suggest to use predefined parts for
drawing a labyrinth background etc.
Let us continue this discussion after the new release of Jave (still
scheduled for tomorrow, but hard work).

Markus