Interactive Display of Isosurfaces with Global Illumination
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Abstract—In many applications, volumetric data sets are examined by displaying isosurfaces, surfaces where the data, or some function of the data, takes on a given value. Interactive applications typically use local lighting models to render such surfaces. This work introduces a method to precompute or lazily compute global illumination to improve interactive isosurface renderings. The precomputed illumination resides in a separate volume and includes direct light, shadows, and interreflections. Using this volume, interactive globally illuminated renderings of isosurfaces become feasible while still allowing dynamic manipulation of lighting, viewpoint and isovalue.
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Index Terms:
Path tracing, isosurface, visualization, rendering, global illumination, precomputed radiance transfer.
Citation:
Chris Wyman, Steven Parker, Peter Shirley, Charles Hansen, "Interactive Display of Isosurfaces with Global Illumination," IEEE Transactions on Visualization and Computer Graphics, vol. 12, no. 2, pp. 186-196, Mar./Apr. 2006, doi:10.1109/TVCG.2006.33
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