Henrik Wann Jensen|
Computer Graphics Laboratory
Computer Science and Engineering
University of California, San Diego
CSE 4116 (map)
9500 Gilman Drive
La Jolla, CA 92093-0404
(The best way to reach me, note)
My area of interest is computer graphics with a focus on realistic image synthesis in particular appearance modeling, global illumination, and rendering natural phenomena.
| Appearance modeling is an active area of research
in computer graphics. Understanding the complex and diverse
appearance of materials is essential for rendering compelling images.
I have worked on subsurface scattering, where
light scattering inside translucent objects is taken into consideration. This
is important for rendering materials such as marble, milk, and human skin.
Recently, we developed a generalized
Lorenz-Mie theory for
computing the optical properties of translucent materials and
scattering media from the basic elements within the materials.
| Global illumination is another area of research
that involves the simulation of all types of light scattering in a model.
My PhD research addressed the simulation of
by introducing the concept of
The key features of the photon mapping algorithm are the use of photon tracing
and the photon map. The photon map is decoupled
from the scene geometry, and it can be used in models with millions of
objects and complex materials. Photon mapping is a practical
technique capable of simulating
and motion blur.
Today, photon mapping is implemented in most high-end rendering software,
and it is being used in architectural simulations, computer games,
and movies. As an example there was a nice
caustics sequence (light focusing through a glass of whisky) in
Final Fantasy. I have mostly been concerned with the
caustics formed as light is focused through
| Rendering natural phenomena is a growing area of
research in computer graphics. Examples include a physically based
model of the
The goal of this project was to simulate all important visual elements of
the night sky (the moon, stars, the atmosphere, the Zodiacal light etc.)
including their appearance to the eye (loss of color and blue shift).
For this purpose we used multi-spectral rendering combined with an
accurate simulation of light scattering in the atmosphere. Another
project addresses the simulation and rendering of
I have been fortunate to work with the following great students: Toshiya Hachisuka (PhD, Aarhus University), Iman Sadeghi (PhD, Google), Wojciech Jarosch (PhD, Disney Research), Craig Donner (PhD, Procter & Gamble), Zhe Fu (MSc, Google), Oleg Bisker (MSc, Canfield Scientific), Krystle de Mesa (MSc, Microsoft), Joachim De Deken (MSc, Pixar), Marios Papas (MSc, ETH Zurich), Carlos Caballero (MSc, Papaya Studio), Robert Thomas (MSc, Blizzard Entertainment), Cameron Chrisman (MSc, Blizzard Entertainment), Andrew Watson (MSc), Arash Keshmerian (MSc, Limbic Software), Bin Chen (MSc, Microsoft), John Rapp (MSc, Microsoft), Cyrus Jam (MSc, Industrial Light & Magic)Our research has been funded by NSF, as well as funding and/or graphics hardware from ATI, CalIT2, NVidia, Photometria, The Sloan Foundation, and Walt Disney Animation Studios. Back in the days we also received an espresso machine from Rhythm+Hues studios (never underestimate the power of good coffee).