delorie.com/archives/browse.cgi   search  
Mail Archives: djgpp/1997/10/27/18:17:21

From: gautam AT interlog DOT com (Gautam N. Lad)
Newsgroups: comp.os.msdos.djgpp
Subject: Clipping or Double Buffering : Which one should I use? (Allegro)
Date: Mon, 27 Oct 97 16:02:09 GMT
Organization: InterLog Internet Services
Lines: 27
Message-ID: <632ddv$o5m$1@news.interlog.com>
NNTP-Posting-Host: ip213-65.cc.interlog.com
To: djgpp AT delorie DOT com
DJ-Gateway: from newsgroup comp.os.msdos.djgpp

Hi,
I have a question.  I'm writing a farily big program, and I need to know if I should 
use double buffering or clipping?

I draw (mainly polys) to a double buffer, and then blit it to the screen.  Is there a 
speed difference between the two? 

It doesn't really make much of a difference which one I use, but I need to know 
which one is faster.

Right now, it takes my program to draw 8100 3D rectangles (in 4 views of size 
240x180) about 4 seconds.  The polys drawn are not of the same view.
This is using double buffering.  I haven't tried clipping, but should I?

My computer is 486 DX2 50MHz, w/ 32MB RAM (running on a DriveSpaced 
drive w/ 20MB free).

Bye!

-------------------------------------------------------------
Gautam N. Lad
-------------------------------------------------------------
E-Mail:	gautam AT interlog DOT com
Website:	http://www.interlog.com/~gautam

POV-Ray Software, Gallery, and Links!
-------------------------------------------------------------

- Raw text -


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