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Pre-computed Radiance Transfer

Published in

By Edmund Caño Magallanes
On Friday, 08 September 2006 (10:00 am) at ICS LH-4

Abstract

The synthesis of realistic lighting in computer graphics, particularly in a real-time context, is a difficult problem. This paper outlines the theory and an implementation of a real-time lighting technique called pre-computed radiance transfer. An offline preprocess calculates radiance transfer functions over a mesh and stores them as vectors of low-order spherical harmonic coefficients. These coefficients are then combined with a spherical harmonic projection of an incident lighting environment to calculate lighting in real-time. The generated images are comparable to globally illuminated ray-traced images in that they exhibit self-shadowing and interreflections, but are efficiently drawn in real-time and support fully dynamic lighting environments.

Author Biography

Edmund Caño Magallanes is currently a senior student of his baccalaureate degree in Computer Science at University of the Philippines Los Baños. He also became a college councilor for the College of Arts and Sciences of the university. Edmund, on his last year in college, is still involved on many organizations. He is currently the President of the Youth on Fire Los Baños, the Ministry Head of Technical Support-Multimedia Ministry of Victory Christian Fellowship Los Baños and a member of the Publicity Committee of Buklod Party. He is also a sophomore student in the Diploma in Evangelical Ministry Program of Every Nation Leadership Institute.

Suggested citation for this online article:

Edmund Caño Magallanes. Pre-computed Radiance Transfer (Seminar Abstract). Accessed 09 January 2009. UPLB-ICS webpage (http://www.ics.uplb.edu.ph/node/137).