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Computer Graphics with Real Light: An Evening with Paul Debevec

University of Southern California, Institute for Creative Technologies

When Oct 23, 2003
from 06:00 pm to 06:00 pm
Where NYC - Pratt Institute
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Thursday, October 23, 2003
6:00PM - 8:00 PM

Pratt Manhattan
Room 213
144 W. 14th Street
(between 6th and 7th Avenues - closer to 7th)
New York, NY

Many applications of computer graphics, especially visual effects, involve convincingly combining computer-generated and real-world imagery. In one form, the task is to place computer-generatedcharacters into photographed real-world scenes. In an opposite form, the task is to composite live-action footage of real-world actors into virtual sets end environments. An important but difficult aspect of this problem is to realistically match the lighting between the
computer-generated and real-world elements, making objects appear to be illuminated by environments they never actually were in. In this talk, Dr. Debevec will present techniques he has helped to develop for digitally capturing real-world illumination, for using captured lighting to illuminate synthetic objects, characters, and environments, and for reproducing captured illumination on real-world objects, faces, and performances. The talk will include clips from SIGGRAPH Electronic Theater animations as well as feature films to illustrate the techniques.

This talk will be of interest to people involved with computer graphics lighting, rendering, and compositing, and should have something to offer both beginners and advanced practitioners.

Speaker Bio:

Paul Debevec received his Ph.D. from UC Berkeley in 1996 where he worked on Facade, an early image-based modeling and rendering system for creating photoreal virtual camera moves through architectural scenes using still photographs. His research involving High Dynamic Range Imagery (HDRI) and Image-Based Lighting (IBL) has been incorporated into commercial rendering systems such as LightWave 3D and RenderMan and has influenced recent advancements in graphics hardware. Debevec's short films in the SIGGRAPH Electronic Theater including "The Campanile Movie", "Rendering with Natural Light", and " Fiat Lux" have helped inspire visual effects sequences in films such as "The Matrix", "X-Men", and "The Time Machine". In 2001 he received ACM SIGGRAPH's Significant New Researcher award and in 2002 was named one of the world's top 100 young innovators by MIT's Technology Review Magazine for his work on the Light Stage. Debevec leads the computer graphics laboratory at University of Southern Calfornia's Institute for Creative Technologies and is a Research Assistant Professor within the USC computer science department.

Event Organizer:
Rick Barry, NYC ACM SIGGRAPH Board of Directors & Pratt Institute.

NYC ACM SIGGRAPH wishes to thank Pratt Institute for its generous support of this event.

For directions to Pratt, visit this link:

NYC ACM SIGGRAPH Members (including student members) - Free
Faculty, Students, and Staff of Pratt Institute - Free
Non-Members -$7.00
Non-Member Students (with proof of current, full-time status) - $3.00