Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!romp!auschs!sergio!sergio
From: sergio@sergio.uucp (Sergio Perrone/30000)
Newsgroups: comp.sys.sgi
Subject: Re: RS6000 an GL programmer's perspective
Keywords: GL, RS6000
Message-ID: <2814@auschs.ibm.com>
Date: 30 Jul 90 21:33:16 GMT
References: <1987@ns-mx.uiowa.edu>
Sender: news@auschs.ibm.com
Reply-To: sergio@sergio.austin.ibm.com
Organization: IBM AWD, Austin, TX
Lines: 22


In reference to comments concerning GL on the IBM RS/6000...

Problems with the speed of 'mapcolor' can be alleviated by using 
'mapcolors' instead - you can load a complete 4096-entry colormap in the
time it takes to execute one mapcolor command.  This speeds things up
considerably.

The implementation of popup menus is different, because the RS/6000 is
an X-based system.  However, the functionality is all there.

Also, I've been using the rectread/rectwrite subroutines extensively
and, so far as I can see, everything works fine.

Floating point performance for the model 320 is rated at more than four
times that of a DECstation 3100, and integer (MIPS) performance is about
twice that of a DS3100.

Marc

--- Marc Andreessen, IBM AWD Austin, sergio@sergio.austin.ibm.com   ---
--- Words and ideas contained herein are independent of IBM policy. ---