Path: utzoo!utgpu!news-server.csri.toronto.edu!rutgers!ucsd!ames!sgi!shinobu!odin!krypton!gavin
From: gavin@krypton.asd.sgi.com (Gavin Bell)
Newsgroups: comp.sys.sgi
Subject: Re: 300 series upgrade
Message-ID: <1990Dec13.211320.9771@odin.corp.sgi.com>
Date: 13 Dec 90 21:13:20 GMT
References: <1990Dec5.231722.12287@riacs.edu>
Sender: news@odin.corp.sgi.com (Net News)
Distribution: usa
Organization: Silicon Graphics, Inc.  Mountain View, CA
Lines: 17

In <1990Dec5.231722.12287@riacs.edu> lam@sheila.arc.nasa.gov (Tony To Lam FSN) writes:

>2, There is an option called 'Multibuffer' available along with the VGX.
>   It provides an additional 64 Texture bit planes.  How do these extra
>   64 bits work with the 32 bits already in the VGX?  Through what gl
>   commands do you use to access these extra bit planes?

The extra texture bitplanes will be used automatically; they allow
more textures to be stored in the graphics bitplanes, so the GL won't
have to swap textures from main memory as often.

The multibuffer option also gives you accumulation buffer capabilities
(motion blur, full scene anti-aliasing, and other interesting stuff);
see the acbuf(3G) manual page for more information.

--
--gavin     (gavin@sgi.com,  (415)335-1024)