Volume Rendering for Curvilinear and Unstructured Grids

Conference · Wed Mar 05 00:00:00 EST 2003

DOI:https://doi.org/10.1109/CGI.2003.1214468· OSTI ID:15004404

Max, N; Williams, P; Silva, C; Cook, R

We discuss two volume rendering methods developed at Lawrence Livermore National Laboratory. The first, cell projection, renders the polygons in the projection of each cell. It requires a global visibility sort in order to composite the cells in back to front order, and we discuss several different algorithms for this sort. The second method uses regularly spaced slice planes perpendicular to the X, Y, or Z axes, which slice the cells into polygons. Both methods are supplemented with anti-aliasing techniques to deal with small cells that might fall between pixel samples or slice planes, and both have been parallelized.

• Research Organization: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 15004404
• Report Number(s): UCRL-JC-152187; TRN: US201015%%580
• Resource Relation: Conference: Computer Graphics International, Tokyo, Japan, Jul 09 - Jul 11, 2003
• Country of Publication: United States
• Language: English

Related Subjects

99
ALGORITHMS
COMPUTER GRAPHICS
LAWRENCE LIVERMORE NATIONAL LABORATORY
VISIBILITY