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    Wavelet Radiance Transport for Interactive Indirect Lighting

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    161-171.pdf (1.349Mb)
    Date
    2006
    Author
    Kontkanen, Janne
    Turquin, Emmanuel
    Holzschuch, Nicolas ORCID
    Sillion, François X.
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    Abstract
    Global illumination is a complex all-frequency phenomenon including subtle effects caused by indirect lighting. Computing global illumination interactively for dynamic lighting conditions has many potential applications, notably in architecture, motion pictures and computer games. It remains a challenging issue, despite the considerable amount of research work devoted to finding efficient methods. This paper presents a novel method for fast computation of indirect lighting; combined with a separate calculation of direct lighting, we provide interactive global illumination for scenes with diffuse and glossy materials, and arbitrarily distributed point light sources. To achieve this goal, we introduce three new tools: a 4D wavelet basis for concise radiance expression, an efficient hierarchical pre-computation of the Global Transport Operator representing the entire propagation of radiance in the scene in a single operation, and a run-time projection of direct lighting on to our wavelet basis. The resulting technique allows unprecedented freedom in the interactive manipulation of lighting for static scenes.
    BibTeX
    @inproceedings {10.2312:EGWR:EGSR06:161-171,
    booktitle = {Symposium on Rendering},
    editor = {Tomas Akenine-Moeller and Wolfgang Heidrich},
    title = {{Wavelet Radiance Transport for Interactive Indirect Lighting}},
    author = {Kontkanen, Janne and Turquin, Emmanuel and Holzschuch, Nicolas and Sillion, François X.},
    year = {2006},
    publisher = {The Eurographics Association},
    ISSN = {1727-3463},
    ISBN = {3-905673-35-5},
    DOI = {10.2312/EGWR/EGSR06/161-171}
    }
    URI
    http://dx.doi.org/10.2312/EGWR/EGSR06/161-171
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    Eurographics Association copyright © 2013 - 2023 
    Send Feedback | Contact - Imprint | Data Privacy Policy | Disable Google Analytics
    Theme by @mire NV
    System hosted at  Graz University of Technology.
    TUGFhA