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From: Bobster@cup.portal.com (Robert Jules Shaughnessy)
Newsgroups: comp.sys.atari.st
Subject: Abacus 3D Programing Book, Need help converting source. (PLEASE
Message-ID: <39359@cup.portal.com>
Date: 17 Feb 91 04:10:52 GMT
Organization: The Portal System (TM)
Lines: 29


     I am having troubles converting the source code in Abacus Software's Atari
 3D Graphics, into a flight simulator type program as
described in the book on pages (327-328). On these pages it says I should modif
y the MULTI1.S code the following ways:

    1: Modify the "pointrot" routine so it does not transform all the
world coordinates back to the old coordinate origin. (Check!)

    2: Change the position of the projection plane to the coordinate 
origin. (I think it is already set that way... Check!)

    3: Make the rotation reference point the coordinate origin. (Check!)


All of this is complete, but I get a messed up display of the houses.
(The hide line routine has deleted lines that it should not. Also, it
still appears to be viewing from a distance. Is there something else
I need to change?)


     Please, if you have completed some code that will do this, can you send it
 to me? I am sure soneone out there has done it. Thanks in advance! (Any help G
REATLY appreciated!)

Bobby Shaughnessy


Thanks!