Title
Multidimensional lightcuts
Abstract
Multidimensional lightcuts is a new scalable method for efficiently rendering rich visual effects such as motion blur, participating media, depth of field, and spatial anti-aliasing in complex scenes. It introduces a flexible, general rendering framework that unifies the handling of such effects by discretizing the integrals into large sets of gather and light points and adaptively approximating the sum of all possible gather-light pair interactions.We create an implicit hierarchy, the product graph, over the gather-light pairs to rapidly and accurately approximate the contribution from hundreds of millions of pairs per pixel while only evaluating a tiny fraction (e.g., 200--1,000). We build upon the techniques of the prior Lightcuts method for complex illumination at a point, however, by considering the complete pixel integrals, we achieve much greater efficiency and scalability.Our example results demonstrate efficient handling of volume scattering, camera focus, and motion of lights, cameras, and geometry. For example, enabling high quality motion blur with 256x temporal sampling requires only a 6.7x increase in shading cost in a scene with complex moving geometry, materials, and illumination.
Year
DOI
Venue
2006
10.1145/1179352.1141997
ACM Trans. Graph.
Keywords
DocType
Volume
high quality motion blur,general rendering framework,motion blur,complex illumination,new scalable method,complex scene,complete pixel integral,efficient handling,multidimensional lightcuts,depth of field,gather-light pair,volume rendering,example result
Journal
25
Issue
ISSN
ISBN
3
0730-0301
1-59593-364-6
Citations 
PageRank 
References 
46
1.81
28
Authors
4
Name
Order
Citations
PageRank
Bruce Walter11484105.07
Adam Arbree267443.35
Kavita Bala32046138.75
Donald P. Greenberg448841568.57