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Survey of Parallel Volume Rendering Algorithms

Survey of Parallel Volume Rendering Algorithms. by Craig M. Wittenbrink craig_wittenbrink@hpl.hp.com Visual Computing Department Hewlett-Packard Laboratories. presentation by Nicholas Schwarz schwarz@evl.uic.edu Electronic Visualization Lab University of Illinois at Chicago.

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Survey of Parallel Volume Rendering Algorithms

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  1. Survey of Parallel Volume Rendering Algorithms by Craig M. Wittenbrink craig_wittenbrink@hpl.hp.com Visual Computing Department Hewlett-Packard Laboratories presentation by Nicholas Schwarz schwarz@evl.uic.edu Electronic Visualization Lab University of Illinois at Chicago

  2. Introduction • Visualizing large volume data is computationally complex – O(n^3) for an n x n x n volume. • Use parallelism to achieve interactivity. • Current classifications make it difficult to determine the best approach. • Presents a 5 class taxonomy for parallel volume rendering algorithms.

  3. Volume Rendering Taxonomy • Algorithm Control Flow • View Reconstruction • Backward – Ray Casting • Forward – Splatting • Multipass Forward • Fourier • Outer Loop Data Space • Object Space • Image Space

  4. Volume Rendering Taxonomy • Targeted Hardware • Graphics (G) • Volume Rendering (VR) • Parallel Shared Address Space (PS) • Parallel Distributed Address Space (PD) • Distributed (D)

  5. Volume Rendering Taxonomy • Application Data Characteristics • Input Topologies • Rectilinear (R) • Curvilinear (C) • Unstructured (U) • Data Types • Scalar, Vector, Tensor • Data Units • Voxel Format

  6. Volume Rendering Taxonomy • Visualization Method • Shading, Data Classification, Transmission Model, Reconstruction Filter, Gradient • Publication Specifics • Date, Number of Processors, Volume Size, Prototype Machine, Asymptotic Complexity Analysis, and Performance

  7. Survey

  8. Links • http://www.hpl.hp.com/techreports/98/HPL-98-49R1.html

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