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    High-Quality Surface Splatting on Today s GPUs

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    017-024.pdf (3.615Mb)
    Date
    2005
    Author
    Botsch, Mario ORCID
    Hornung, Alexander
    Zwicker, Matthias
    Kobbelt, Leif
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    Abstract
    Because of their conceptual simplicity and superior flexibility, point-based geometries evolved into a valuable alternative to surface representations based on polygonal meshes. Elliptical surface splats were shown to allow for high-quality anti-aliased rendering by sophisticated EWA filtering. Since the publication of the original software-based EWA splatting, several authors tried to map this technique to the GPU in order to exploit hardware acceleration. Due to the lacking support for splat primitives, these methods always have to find a trade-off between rendering quality and rendering performance. In this paper, we discuss the capabilities of today s GPUs for hardware-accelerated surface splatting. We present an approach that achieves a quality comparable to the original EWA splatting at a rate of more than 20M elliptical splats per second. In contrast to previous GPU renderers, our method provides per-pixel Phong shading even for dynamically changing geometries and high-quality anti-aliasing by employing a screen-space pre-filter in addition to the object-space reconstruction filter. The use of deferred shading techniques effectively avoids unnecessary shader computations and additionally provides a clear separation between the rasterization and the shading of elliptical splats, which considerably simplifies the development of custom shaders. We demonstrate quality, efficiency, and flexibility of our approach by showing several shaders on a range of models.
    BibTeX
    @inproceedings {10.2312:SPBG:SPBG05:017-024,
    booktitle = {Eurographics Symposium on Point-Based Graphics (2005)},
    editor = {Marc Alexa and Szymon Rusinkiewicz and Mark Pauly and Matthias Zwicker},
    title = {{High-Quality Surface Splatting on Today s GPUs}},
    author = {Botsch, Mario and Hornung, Alexander and Zwicker, Matthias and Kobbelt, Leif},
    year = {2005},
    publisher = {The Eurographics Association},
    ISSN = {1811-7813},
    ISBN = {3-905673-20-7},
    DOI = {10.2312/SPBG/SPBG05/017-024}
    }
    URI
    http://dx.doi.org/10.2312/SPBG/SPBG05/017-024
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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