The Siggraph 2003 presentation on the ESC Lighting Reconstruction Toolkit, an Image-Based Lighting approach used on The Matrix Reloaded and The Matrix Revolutions are online here.
|Haarm-Pieter Duiker, ESC Entertainment|
The demands of photo-realism required of the effects for The Matrix Reloaded and The Matrix Revolutions led us to create a system for directly and accurately reconstructing real world lighting environments. The Lighting Reconstruction Toolkit builds on research in the area of Image-based Lighting and extends current techniques to enable the reconstruction of lighting that more closely matches the real world.
The full writeup and slides are available below
Light Reconstruction Siggraph 2003