Carnegie Mellon University
From September 1995 to December 1997,
I was a PhD student in computer science at Carnegie Mellon University, in
Pittsburgh, PA. My advisors were Andy Witkin and David Baraff, and my
research area was graphics and user interfaces. I decided to leave in
December 1997 after completing my M.S. Turns out that that's just as well;
Andy and David have jumped ship too. They now work at Pixar.
"Nothin' But Net": a physically-realistic
animation system which lets the user specify certain aspects of an
object's path (e.g. it bounces off another object at a certain time
and position), and produces a path which meets those constraints yet
is as close to physical realism as possible.
The system's name refers to the McDonald's commercials of a few years
ago, in which two basketball players described and then made
outrageous shots -- e.g. out the gym window, bounce off the billboard,
across the freeway, bounce off the moving truck, off the flagpole,
into the gym through another window, and through the hoop. The
descriptions of the shots always ended with the phrase "Nothin' but
net", meaning that the ball didn't touch the basket's hoop or
backboard. Achieving this requires precise control of the ball's
position and velocity as it approaches the basket. McDonald's of
course had the luxury of being able to stop the camera and film these
wild sequences in discontinuous segments. To produce equivalent
animations as single non-stop sequences without sacrificing physical
reality (or at least the appearance of it) requires a system such as
the one I was developing.
Cheating Impulses: Scripting Control Plus Physical Realism for
Animation -- Abstract of
my presentation at the ACM student research poster contest, San Jose,
February 27-28 1997.
Earlier projects at CMU
a GUI for a physical simulation system, which was used by an
class this spring to design exhibits for the
Carnegie Science Center
an automated system for aligning two images and
combining them into an
University of Virginia
In May 1995 I earned my first master's degree in the Computer Science Department at
the University of Virginia, in
Virginia. I worked with Dr. Tom
Olson and the Computer
Vision research group. My research project consisted of a multi-camera
optical tracking system. The tracker reported physical objects'
3D positions, which I used to control the locations of simulated
objects in a virtual environment.
The Johns Hopkins University
My bachelor's degree (1992)
is in math, with a concentration in physics. I graduated from The Johns Hopkins University, in Baltimore. While at JHU I spent a
lot of time working with the
Barnstormers, the student theater group.
Last modified: Thu Jan 7 19:30:52 PST 1999