Title :
Interactive view-dependent rendering of large isosurfaces
Author :
Gregorski, B. ; Duchaineau, M. ; Lindstrom, P. ; Pascucci, V. ; Joy, K.I.
Author_Institution :
Center for Appl. Sci. Comput., Lawrence Livermore Nat. Lab., CA, USA
fDate :
Oct. 27 2002-Nov. 1 2002
Abstract :
We present an algorithm for interactively extracting and rendering isosurfaces of large volume datasets in a view-dependent fashion. A recursive tetrahedral mesh refinement scheme, based on longest edge bisection, is used to hierarchically decompose the data into a multiresolution structure. This data structure allows fast extraction of arbitrary isosurfaces to within user specified view-dependent error bounds. A data layout scheme based on hierarchical space filling curves provides access to the data in a cache coherent manner that follows the data access pattern indicated by the mesh refinement.
Keywords :
computational geometry; data structures; rendering (computer graphics); solid modelling; computational geometry; data structure; edge bisection; graphics data structures; interactive view-dependent rendering; large isosurfaces rendering; mesh refinement; multiresolution structure; object modeling; recursive tetrahedral mesh refinement; view-dependent fashion; Data engineering; Data mining; Data structures; Data visualization; Image processing; Isosurfaces; Laboratories; Rendering (computer graphics); Scientific computing; Switches;
Conference_Titel :
Visualization, 2002. VIS 2002. IEEE
Conference_Location :
Boston, MA, USA
Print_ISBN :
0-7803-7498-3
DOI :
10.1109/VISUAL.2002.1183810
