DocumentCode :
1975687
Title :
Tetrahedral projection using vertex shaders
Author :
Wylie, Brian ; Moreland, Kenneth ; Fisk, Lee Ann ; Crossno, Patricia
Author_Institution :
Sandia Nat. Labs., Livermore, CA, USA
fYear :
2002
fDate :
28-29 Oct. 2002
Firstpage :
7
Lastpage :
12
Abstract :
Projective methods for volume rendering currently represent the best approach for interactive visualization of unstructured data sets. We present a technique for tetrahedral projection using the programmable vertex shaders on current generation commodity graphics cards. The technique is based on Shirley and Tuchman´s Projected Tetrahedra (PT) algorithm and allows tetrahedral elements to be volume scan converted within the graphics processing unit. Our technique requires no pre-processing of the data and no additional data structures. Our initial implementation allows interactive viewing of large unstructured datasets on a desktop personal computer.
Keywords :
data visualisation; rendering (computer graphics); virtual reality; commodity graphics cards; desktop personal computer; interactive viewing; interactive visualization; programmable vertex shaders; projective methods; tetrahedral projection; unstructured data sets; vertex shaders; volume rendering; Computer graphics; Data structures; Data visualization; Microcomputers; Rendering (computer graphics);
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Volume Visualization and Graphics, 2002. Proceedings. IEEE / ACM SIGGRAPH Symposium on
Print_ISBN :
0-7803-7641-2
Type :
conf
DOI :
10.1109/SWG.2002.1226504
Filename :
1226504
Link To Document :
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