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    Shading and Shadowing with Linear Light Sources

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    EUROGRAPHICS_90pp377_386.pdf (179.7Kb)
    Date
    1990
    Author
    Poulin, Pierre ORCID
    Amanatides, John
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    Abstract
    In virtually all rendering systems, linear light sources are modeled with a series of point light sources that require considerable computing resources to produce realistic looking results. A general solution for shading surfaces illuminated by a linear light source is proposed. A formulation allowing for faster computation of the diffuse component of light reflection is derived. By assuming Phong's specular component, simple, inexpensive and convincing results are produced with the use of a Chebyshev approximation. A shadowing algorithm is also presented. As shadowing from linear light sources is expensive, two acceleration schemes, extended from ray tracing, are evaluated.
    BibTeX
    @inproceedings {10.2312:egtp.19901030,
    booktitle = {EG 1990-Technical Papers},
    editor = {},
    title = {{Shading and Shadowing with Linear Light Sources}},
    author = {Poulin, Pierre and Amanatides, John},
    year = {1990},
    publisher = {Eurographics Association},
    ISSN = {1017-4656},
    DOI = {10.2312/egtp.19901030}
    }
    URI
    http://dx.doi.org/10.2312/egtp.19901030
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    • EG1990 Proceedings (Technical Papers)

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    Eurographics Association copyright © 2013 - 2023 
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    Theme by @mire NV
    System hosted at  Graz University of Technology.
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