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From: tarolli@riva.esd.sgi.com (Gary Tarolli)
Newsgroups: comp.sys.sgi
Subject: Re: writing frontbuffer to backbuffer
Summary: try rectcopy
Message-ID: <46342@sgi.sgi.com>
Date: 14 Dec 89 17:15:29 GMT
References: <44586@bu-cs.BU.EDU>
Sender: tarolli@riva.esd.sgi.com
Organization: Silicon Graphics, Inc., Mountain View, CA
Lines: 15

In article <44586@bu-cs.BU.EDU>, tjh@bu-pub.bu.edu writes:
> Is there a way to write directly from the frontbuffer to the backbuffer
> or the zbuffer?  That is without doing a rectread and then a rectwrite.
> 
> -Tim
> tjh@bu-pub.bu.edu

Rectcopy does a framebuffer to framebuffer copy without the host cpu getting
too involved.  the command readsource() specifies where to get the pixels
from and frontbuffer(),backbuffer(), zdraw() specify where to put the pixels.
You can also zoom the pixels on certain machines.

Check the rectcopy man page for details...
--
						Gary Tarolli