From owner-freebsd-multimedia Sun Jul 18 12:44:37 1999 Delivered-To: freebsd-multimedia@freebsd.org Received: from herring.nlsystems.com (nlsys.demon.co.uk [158.152.125.33]) by hub.freebsd.org (Postfix) with ESMTP id E7FF014EC4 for ; Sun, 18 Jul 1999 12:44:33 -0700 (PDT) (envelope-from dfr@nlsystems.com) Received: from salmon.nlsystems.com (salmon.nlsystems.com [10.0.0.3]) by herring.nlsystems.com (8.9.3/8.8.8) with ESMTP id UAA32482; Sun, 18 Jul 1999 20:46:08 +0100 (BST) (envelope-from dfr@nlsystems.com) Date: Sun, 18 Jul 1999 20:46:07 +0100 (BST) From: Doug Rabson To: Randall Hopper Cc: Stephen Hocking-Senior Programmer PGS Tensor Perth , multimedia@freebsd.org Subject: Re: Got quake3 test running with Riva TNT2Ultra In-Reply-To: <19990718143910.B7364@ipass.net> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-multimedia@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org On Sun, 18 Jul 1999, Randall Hopper wrote: > Stephen Hocking-Senior Programmer PGS Tensor Perth: > |I compiled up all the stuff myself as per the instructions on the nVidia > |web site. I had to get the Linux libGL.so from their binaries > |package. The frame rate is less than my old Canopus Voodoo1, but given > |how things are implemented, that's hardly suprising. It does make the > |FlightGear game usable as well. I'm looking forward to the DRI stuff > |becoming available. > > Sounds cool, though I was surprised when you said it was slower than your > Pure3D. For those that don't know, what is it about how things are > implemented that makes it so slow? > > I have a Pure3D as well and have been eying the TNT2 cards as well. So I'm > interested in your results. The simple answer is that it routes all graphics commands through the X server which involve a lot of data copies and context switches. The upcoming XFree86 4.0 will support 'direct rendering' where the application links with a version of GL which can access the hardware directly for maximum performance. -- Doug Rabson Mail: dfr@nlsystems.com Nonlinear Systems Ltd. Phone: +44 181 442 9037 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-multimedia" in the body of the message