Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!mnetor!seismo!rutgers!cbmvax!grr From: grr@cbmvax.cbm.UUCP (George Robbins) Newsgroups: comp.sys.amiga Subject: Re: Amiga news (genlock & lots more, *long* but juicy) Message-ID: <1115@cbmvax.cbmvax.cbm.UUCP> Date: Mon, 15-Dec-86 04:49:11 EST Article-I.D.: cbmvax.1115 Posted: Mon Dec 15 04:49:11 1986 Date-Received: Tue, 16-Dec-86 19:18:56 EST References: <1272@zen.BERKELEY.EDU> <627@hp-sdd.HP.COM> Reply-To: grr@cbmvax.UUCP (George Robbins) Organization: Commodore Technology, West Chester, PA Lines: 30 In article <627@hp-sdd.HP.COM> nick@hp-sdd.UUCP (Nick Flor) writes: >In article <1272@zen.BERKELEY.EDU> hatcher@ingres.Berkeley.EDU.UUCP (Doug Merritt) writes: >> >>They also showed a *** 3-D ray-traced smooth-motion animation *** showing >>a clown juggling 3 reflecting balls!!!!!! Extraordinary. The absolute best >>by 2 orders of magnitude that anyone has yet seen on an Amiga. This >>was done by one Eric Graham... > >But, did he cheat? Can you see the clown reflected in the balls? >Was the clown rendered also? >Nick Yes, the clown is reflected in the balls, yes, the balls are reflected in each other, and yes, the shadows seem seem to apply all the correct places. The perspective seems a bit warped, and poor clown has his elbows pinned to the backdrop... Admittedly, the imagery is pretty simple compared to some of the other Amiga ray tracing images, but it's still a pretty incredible business card!!! The amimation uses a small set of images (12?), but this lets everything fit in memory and blast out full speed. I don't know if he's displaying a full screen for each frame, or just alternating between two, and substituting areas. Anybody got any other neat demos that Jack can't fake on those ST thingies? -- George Robbins - now working for, uucp: {ihnp4|seismo|rutgers}!cbmvax!grr but no way officially representing arpa: cbmvax!grr@seismo.css.GOV Commodore, Engineering Department fone: 215-431-9255 (only by moonlite)