delorie.com/archives/browse.cgi   search  
Mail Archives: djgpp/1999/09/12/11:52:17

Message-ID: <37DBC0DF.7A5D@ns.sympatico.ca>
From: Klaas <klaas AT ns DOT sympatico DOT ca>
X-Mailer: Mozilla 3.04 (Win95; I)
MIME-Version: 1.0
Newsgroups: comp.os.msdos.djgpp
Subject: Allegro 3D functions - won't display on right half of the screen
Lines: 14
Date: Sun, 12 Sep 1999 15:04:13 GMT
NNTP-Posting-Host: 142.177.71.48
X-Complaints-To: abuse AT ns DOT sympatico DOT ca
X-Trace: sapphire.mtt.net 937148653 142.177.71.48 (Sun, 12 Sep 1999 12:04:13 ADT)
NNTP-Posting-Date: Sun, 12 Sep 1999 12:04:13 ADT
Organization: Sympatico-Subscriber
To: djgpp AT delorie DOT com
DJ-Gateway: from newsgroup comp.os.msdos.djgpp
Reply-To: djgpp AT delorie DOT com

I built a basic rotating cube demo with the allegro polygon and matrix
functions, but I have a problem.  The cube displays as expected when in
8bit color (cube in center of the screen).  BUT, when I change NOTHING
else in the program besides the color depth (to 16), the "view area"
gets cuts in half - the cube is displayed 1/4 from the left edge of the
screen, and when I apply transformations to move the cube around, it
gets clipped at half the screen width.

Also, this is in 800x600 screen mode, but the same problem exists in
640x480.  The projection viewport is 0,0,SCREEN_W,SCREEN_H.

Any help would be appreciated.

-Mike

- Raw text -


  webmaster     delorie software   privacy  
  Copyright © 2019   by DJ Delorie     Updated Jul 2019