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2007
IEEE

Interactive Isosurface Ray Tracing of Time-Varying Tetrahedral Volumes

12 years 2 months ago
Interactive Isosurface Ray Tracing of Time-Varying Tetrahedral Volumes
Abstract-- We describe a system for interactively rendering isosurfaces of tetrahedral finite-element scalar fields using coherent ray tracing techniques on the CPU. By employing state-of-the art methods in polygonal ray tracing, namely aggressive packet/frustum traversal of a bounding volume hierarchy, we can accomodate large and time-varying unstructured data. In conjunction with this efficiency structure, we introduce a novel technique for intersecting ray packets with tetrahedral primitives. Ray tracing is flexible, allowing for dynamic changes in isovalue and time step, visualization of multiple isosurfaces, shadows, and depth-peeling transparency effects. The resulting system offers the intuitive simplicity of isosurfacing, guaranteed-correct visual results, and ultimately a scalable, dynamic and consistently interactive solution for visualizing unstructured volumes.
Ingo Wald, Heiko Friedrich, Aaron Knoll, Charle
Added 03 Nov 2009
Updated 03 Nov 2009
Type Conference
Year 2007
Where VIS
Authors Ingo Wald, Heiko Friedrich, Aaron Knoll, Charles Hansen
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