DocumentCode :
3179778
Title :
Efficient Rendering of Extrudable Curvilinear Volumes
Author :
Martin, Steven ; Shen, Han-Wei ; Samtaney, Ravi
Author_Institution :
Ohio State Univ., Ohio
fYear :
2008
fDate :
5-7 March 2008
Firstpage :
1
Lastpage :
8
Abstract :
We present a technique for memory-efficient and time-efficient volume rendering of curvilinear adaptive mesh refinement data defined within extrudable computational spaces. One of the main challenges in the ray casting of curvilinear volumes is that a linear viewing ray in physical space will typically correspond to a curved ray in computational space. The proposed method utilizes a specialized representation of curvilinear space that provides for the compact representation of parameters for transformations between computational space and physical space, without requiring extensive preprocessing. By simplifying the representation of computational space positions using an extrusion of a profile surface, the requisite transformations can be greatly simplified. Our implementation achieves interactive rates with minimal load time and memory overhead using commodity graphics hardware with real-world data.
Keywords :
rendering (computer graphics); curvilinear adaptive mesh refinement; curvilinear space representation; data rendering; extrudable curvilinear volumes; graphics hardware; linear viewing ray; Adaptive mesh refinement; Casting; Computer graphics; Hardware; Image generation; Laboratories; Mesh generation; Physics computing; Plasmas; Rendering (computer graphics); I.3.3 [Computer Graphics]: Picture/Image Generation¿Viewing algorithms; I.3.7 [Computer Graphics]: Three-Dimensional Graphics and Realism¿Raytracing;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Visualization Symposium, 2008. PacificVIS '08. IEEE Pacific
Conference_Location :
Kyoto
Print_ISBN :
978-1-4244-1966-1
Type :
conf
DOI :
10.1109/PACIFICVIS.2008.4475452
Filename :
4475452
Link To Document :
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