Date: Sun, 18 Jul 1999 20:46:07 +0100 (BST) From: Doug Rabson <dfr@nlsystems.com> To: Randall Hopper <aa8vb@ipass.net> Cc: Stephen Hocking-Senior Programmer PGS Tensor Perth <shocking@prth.pgs.com>, multimedia@freebsd.org Subject: Re: Got quake3 test running with Riva TNT2Ultra Message-ID: <Pine.BSF.4.10.9907182044430.58023-100000@salmon.nlsystems.com> In-Reply-To: <19990718143910.B7364@ipass.net>
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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
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