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    EM-Cube: An Architecture for Low-Cost Real-Time Volume Rendering

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    131-137.pdf (1015.Kb)
    Date
    1997
    Author
    Osborne, Rändy
    Pfister, Hanspeter
    Lauer, Hugh
    McKenzie, Neil
    Gibson, Sarah
    Hiatt, Wally
    Ohkarni, TakaHide
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    Abstract
    EM-Cube is a VLSI architecture for low-cost, high quality volume rendering at full video frame rates. Derived from the Cube4 architecture developed at SUNY at Stony Brook, EM-Cube computes sample points and gradients on-the-fly to project 3-dimensional volume data onto 2-dimensional images with realistic lighting and shading. A modest rendering system based on EM-Cube consists of a PC1 card with four rendering chips (ASICs), four 64Mbit SDRAMs to hold the volume data, and four SRAMs to capture the rendered image. The performance target for this configuration is to render images from a 256<sup>3</sup> x 16 bit data set at 30 frames/sec. The EM-Cube architecture can be scaled to larger volume data-sets and/or higher frame rates by adding additional ASKS, SDRAMs, and SRAMs. This paper addresses three major challenges encountered developing EM-Cube into a practical product: exploiting the bandwidth inherent in the SDRAMs containing the volume data, keeping the pin-count between adjacent ASICs at a tractable level, and reducing the on-chip storage required to hold the intermediate results of rendering.
    BibTeX
    @inproceedings {EGGH:EGGH97:131-137,
    booktitle = {SIGGRAPH/Eurographics Workshop on Graphics Hardware},
    editor = {A. Kaufmann and W. Strasser and S. Molnar and B.-O. Schneider},
    title = {{EM-Cube: An Architecture for Low-Cost Real-Time Volume Rendering}},
    author = {Osborne, Rändy and Pfister, Hanspeter and Lauer, Hugh and McKenzie, Neil and Gibson, Sarah and Hiatt, Wally and Ohkarni, TakaHide},
    year = {1997},
    publisher = {The Eurographics Association},
    ISSN = {1727-3471},
    ISBN = {0-89791-961-0},
    DOI = {10.2312/EGGH/EGGH97/131-137}
    }
    URI
    http://dx.doi.org/10.2312/EGGH/EGGH97/131-137
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