From owner-freebsd-multimedia Tue Jan 28 10:01:00 1997 Return-Path: Received: (from root@localhost) by freefall.freebsd.org (8.8.5/8.8.5) id KAA27622 for multimedia-outgoing; Tue, 28 Jan 1997 10:01:00 -0800 (PST) Received: from phaeton.artisoft.com (phaeton.Artisoft.COM [198.17.250.211]) by freefall.freebsd.org (8.8.5/8.8.5) with SMTP id KAA27601; Tue, 28 Jan 1997 10:00:46 -0800 (PST) Received: (from terry@localhost) by phaeton.artisoft.com (8.6.11/8.6.9) id KAA08399; Tue, 28 Jan 1997 10:41:40 -0700 From: Terry Lambert Message-Id: <199701281741.KAA08399@phaeton.artisoft.com> Subject: Re: New Bt848 Video capture driver for FreeBSD To: jehamby@lightside.com Date: Tue, 28 Jan 1997 10:41:40 -0700 (MST) Cc: terry@lambert.org, hasty@rah.star-gate.com, multimedia@freebsd.org, hackers@freebsd.org In-Reply-To: from "Jake Hamby" at Jan 28, 97 09:10:44 am X-Mailer: ELM [version 2.4 PL24] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-multimedia@freebsd.org X-Loop: FreeBSD.org Precedence: bulk > I strongly doubt that the person who wrote the demo used such sneaky > speed-ups, since it was designed to show off the new general-purpose > texture-mapping routines that will be in the 3D Kit for BeOS DR9. Besides > the cube, there was a sphere, an open book, and a pulsing surface that > looked like water that a pebble has been dropped into. Furthermore, the > cube could be rotated by the user dragging the mouse. In general, texture > mapping is straightforward enough, and a PowerPC 604 has enough horsepower > to solve it in the general case, that I'm sure that's what they did. > > In other words, of course the hidden surfaces wouldn't be rendered, but > your other suggestions sound a little wacky. Wacky enough to do the same sort of thing with a cube on a Commodore64... obviously, they were anim files, not Quicktime. "64K?!?! My God! How will you ever fill that up?!?". 8-). Just the knowledge that sneaky is available makes it a little less impressive on a PPC604, though. The old debate between whether you should throw fast hardware or clever software at a problem, I guess... (PS: the correct answer is "both". 8-)). Regards, Terry Lambert terry@lambert.org --- Any opinions in this posting are my own and not those of my present or previous employers.