From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 9486 invoked by alias); 30 Jan 2004 16:54:54 -0000 Mailing-List: contact cygwin-xfree-help@cygwin.com; run by ezmlm Precedence: bulk List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-xfree-owner@cygwin.com Mail-Followup-To: cygwin-xfree@cygwin.com Reply-To: cygwin-xfree@cygwin.com Received: (qmail 9448 invoked from network); 30 Jan 2004 16:54:53 -0000 Received: from unknown (HELO jetpack.demon.co.uk) (80.176.228.186) by sources.redhat.com with SMTP; 30 Jan 2004 16:54:53 -0000 Received: from jetpack.demon.co.uk (localhost.localdomain [127.0.0.1]) by jetpack.demon.co.uk (8.12.8/8.12.8) with ESMTP id i0UGsqAU004679 for ; Fri, 30 Jan 2004 16:54:52 GMT Received: (from alanh@localhost) by jetpack.demon.co.uk (8.12.8/8.12.8/Submit) id i0UGsl7f004677 for cygwin-xfree@cygwin.com; Fri, 30 Jan 2004 16:54:47 GMT Date: Fri, 30 Jan 2004 17:11:00 -0000 From: Alan Hourihane To: cygwin-xfree@cygwin.com Subject: Re: Notes on adding accelerated OpenGL support to Cygwin/X Message-ID: <20040130165447.GR1930@fairlite.demon.co.uk> References: <4018B5BF.4000506@msu.edu> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4018B5BF.4000506@msu.edu> User-Agent: Mutt/1.4i X-SW-Source: 2004-01/txt/msg00553.txt.bz2 List-Id: One note Harold on this.... You'll find that a lot of OpenGL drivers that are used on Windows are seriously lagging behind in support for the hardware. That's because a lot of vendors don't bother updating support for OpenGL directly and are more interested in Direct3D. Just run a native 'glinfo' application and you'll see that ATI and nVidia are pretty good in this area and provide very up-to-date OpenGL drivers. But others aren't so great. Apparently SciTech (Kendall Bennett) donated some code (a driver) for Mesa that allows it to accept the OpenGL commands from the client and call the equivalent Direct3D counterparts thus providing hardware that has a more capable Direct3D layer much more benefit. I think Karl Schultz on the Mesa list has the code and is integrating it, but I don't know the status. You may want to contact him. You won't need this to get started though, but it's certainly worth investigating once you've got an initial implementation. Alan.