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!

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

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