Path: utzoo!attcan!uunet!samsung!sol.ctr.columbia.edu!cica!iuvax!maytag!watdragon!pjyamamoto
From: pjyamamoto@watdragon.waterloo.edu (Peter Yamamoto)
Newsgroups: comp.graphics
Subject: Re: Luxo lamp jumps hurdles
Message-ID: <1990Nov2.170654.564@watdragon.waterloo.edu>
Date: 2 Nov 90 17:06:54 GMT
References: <41853@eerie.acsu.Buffalo.EDU>
Organization: Data Structures Group, C.S. Dept., U. of Waterloo
Lines: 34

In article <41853@eerie.acsu.Buffalo.EDU> v134kkut@ubvmsb.cc.buffalo.edu writes:
>first, let me say this article is directed more towards computer visual
>3D simulation than computergraphics in general...
>
>I read this fascinating article once but can't remember where.  I was
>wondering if someone could give me a reference for it or information on 
>something similar:
>
>ok, these guys were animating a luxo lamp on a computer.  they gave each joint
>a certain amount of maximum strength.  told it it had to jump over an invisible
>hurdle placed a certain height a certain distance in front of it.  Assuming 
>natural laws of physics (gravity, etc.).   The lamp would crouch in a certain
>way and, jump and maneuver itself as it flew through the air to go over the
>hurdle.  the more odd the placement of the hurdle, the more oddly the lamp
>jumped.  until the guys told  the computer 'jump', they had no idea what it would
>do.  

Several people have given references to the original literature but you may
also be interested in:

Michiel van de Panne, Eugene Fiume, and Zvonko Vranesic,
Reusable motion synthesis using state-space controllers,
Computer Graphics, Voulme 24, Number 4, August, 1990

Ie from the SIGGRAPH '90 conference proceedings.

This is work done at the University of Toronto, Cananada.

Peter
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