DocumentCode :
1866691
Title :
Hardware-software-balanced resampling for the interactive visualization of unstructured grids
Author :
Weiler, Manfred ; Ertl, Thomas
Author_Institution :
Visualization & Interactive Syst. Group, Stuttgart Univ., Germany
fYear :
2001
fDate :
21-26 Oct. 2001
Firstpage :
199
Lastpage :
558
Abstract :
In this paper we address the problem of interactively resampling unstructured grids. Three algorithms are presented. They all allow adaptive resampling of an unstructured grid on a multiresolution hierarchy of arbitrarily sized cartesian grids according to a varying element size. Two of the algorithms presented take advantage of hardware accelerated polygon rendering and 2D texture mapping. In exploiting new features of modem PC graphics adapters, the first algorithm tries to significantly minimize the number of polygons to be rendered. Reducing rasterization requirements is the main goal of the second algorithm, which distributes the computational workload differently between the main processor and the graphics chip. By comparing them to a new pure software approach, an optimal software-hardware balance is studied. We end up with a hybrid approach which greatly improves the performance of hardware assisted resampling by involving the main processor to a higher degree and thus enabling resampling at nearly interactive rates.
Keywords :
data visualisation; interactive systems; minimisation; rendering (computer graphics); 2D texture mapping; Hardware-software-balanced resampling; PC graphics adapters; arbitrarily sized cartesian grids; distributes the computational workload; hardware accelerated polygon rendering; interactive visualization; minimize; multiresolution hierarchy; optimal software-hardware balance; rasterization requirements; unstructured grids; Acceleration; Computer graphics; Data visualization; Distributed computing; Hardware; Interactive systems; Large-scale systems; Rendering (computer graphics);
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Visualization, 2001. VIS '01. Proceedings
Conference_Location :
San Diego, CA, USA
Print_ISBN :
0-7803-7201-8
Type :
conf
DOI :
10.1109/VISUAL.2001.964512
Filename :
964512
Link To Document :
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