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    Smooth Mixed-Resolution GPU Volume Rendering

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    163-170.pdf (1.181Mb)
    Date
    2008
    Author
    Beyer, Johanna ORCID
    Hadwiger, Markus ORCID
    Möller, Torsten
    Fritz, Laura
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    Abstract
    We propose a mixed-resolution volume ray-casting approach that enables more flexibility in the choice of downsampling positions and filter kernels, allows freely mixing volume bricks of different resolutions during rendering, and does not require modifying the original sample values. A C0-continuous function is obtained everywhere with hardware-native filtering at full speed by simply warping texture coordinates of samples in transition regions. Additionally, we propose a simple but powerful, flat texture packing scheme that supports mixing different resolution levels in a single 3D volume cache texture with a very simple and fast address translation scheme. Although this packing constrains full scalability, it enables mixing different resolution levels in GPU-based ray-casting with only a single rendering pass. We demonstrate our approach on large real-world data, obtaining a continuous scalar function and shading at brick boundaries, using single-pass ray-casting at real-time frame rates.
    BibTeX
    @inproceedings {10.2312:VG:VG-PBG08:163-170,
    booktitle = {IEEE/ EG Symposium on Volume and Point-Based Graphics},
    editor = {Hans-Christian Hege and David Laidlaw and Renato Pajarola and Oliver Staadt},
    title = {{Smooth Mixed-Resolution GPU Volume Rendering}},
    author = {Beyer, Johanna and Hadwiger, Markus and Möller, Torsten and Fritz, Laura},
    year = {2008},
    publisher = {The Eurographics Association},
    ISSN = {1727-8376},
    ISBN = {978-3-905674-12-5},
    DOI = {10.2312/VG/VG-PBG08/163-170}
    }
    URI
    http://dx.doi.org/10.2312/VG/VG-PBG08/163-170
    Collections
    • VG-PBG08: Eurographics/IEEE VGTC on Volume and Point-Based Graphics
    • VG-PBG08: Eurographics/IEEE VGTC on Volume and Point-Based Graphics

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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