Progressive Point-Light-Based Global Illumination
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Date
2010
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Publisher
The Eurographics Association and Blackwell Publishing Ltd
Abstract
We present a physically based progressive global illumination system that is capable of simulating complex lighting situations robustly by efficiently using both light and eye paths. Specifically, we combine three distinct algorithms: point-light-based illumination which produces low-noise approximations for diffuse inter-reflections, specular gathering for glossy and singular effects and a caustic histogram method for the remaining light paths. The combined system efficiently renders low-noise production quality images with indirect illumination from arbitrary light sources including inter-reflections from caustics and allows for simulating depth of field and dispersion effects. Our system computes progressive approximations by continuously refining the solution using a constant memory footprint without the need of pre-computations or optimizing parameters beforehand.
Description
@article{10.1111:j.1467-8659.2010.01786.x,
journal = {Computer Graphics Forum},
title = {{Progressive Point-Light-Based Global Illumination}},
author = {Dammertz, H. and Keller, A. and Lensch, H. P. A.},
year = {2010},
publisher = {The Eurographics Association and Blackwell Publishing Ltd},
ISSN = {1467-8659},
DOI = {10.1111/j.1467-8659.2010.01786.x}
}