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    Point-Based Rendering of Non-Manifold Surfaces

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    v27i1pp063-072.pdf (321.8Kb)
    Date
    2008
    Author
    Balsys, Ron J.
    Suffern, K. G.
    Jones, Huw
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    Abstract
    We are concerned with producing high-quality images of parametric and implicit surfaces, in particular those with non-manifold features. We present a point-based technique for rendering implicit surfaces that uses octree spatial subdivision with a natural interval exclusion test that guarantees that no parts of the surface are missed. This allows us to render non-manifold implicit surfaces at speeds comparable to parametric surfaces. We also derive criteria that guarantee complete pixel coverage of the surface. The point-based method allows for hidden surface elimination using a z-buffer, and shadow casting using a shadow buffer. We illustrate the technique with a number of surfaces, and discuss its advantages and disadvantages.
    BibTeX
    @article {10.1111:j.1467-8659.2007.01096.x,
    journal = {Computer Graphics Forum},
    title = {{Point-Based Rendering of Non-Manifold Surfaces}},
    author = {Balsys, Ron J. and Suffern, K. G. and Jones, Huw},
    year = {2008},
    publisher = {The Eurographics Association and Blackwell Publishing Ltd},
    ISSN = {1467-8659},
    DOI = {10.1111/j.1467-8659.2007.01096.x}
    }
    URI
    http://dx.doi.org/10.1111/j.1467-8659.2007.01096.x
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    System hosted at  Graz University of Technology.
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