Hardware-accelerated texture advection for unsteady flow visualization

Author

Jobard, Bruno ; Erlebacher, Gordon ; Hussaini, M. Yousuff

Author_Institution

Sch. of Comput. Sci. & Inf. Technol., Tallahassee, FL, USA

fYear

2000

fDate

13-13 Oct. 2000

Firstpage

155

Lastpage

162

Abstract

We present a novel hardware-accelerated texture advection algorithm to visualize the motion of two-dimensional unsteady flows. Making use of several proposed extensions to the OpenGL-1.2 specification, we demonstrate animations of over 65,000 particles at 2 frames/sec on an SGI Octane with EMXI graphics. High image quality is achieved by careful attention to edge effects, noise frequency, and image enhancement. We provide a detailed description of the hardware implementation, including temporal and spatial coherence techniques, dye advection techniques, and feature extraction.

Keywords

computational fluid dynamics; computer animation; flow instability; flow visualisation; image enhancement; image texture; 2D unsteady flow visualization; EMXI graphics; OpenGL-1.2 specification; SGI Octane; animations; dye advection techniques; edge effects; feature extraction; hardware-accelerated texture advection algorithm; high image quality; image enhancement; noise frequency; particles; spatial coherence techniques; temporal coherence techniques; Acceleration; Animation; Computer displays; Computer graphics; Frequency; Hardware; Image quality; Information technology; Software algorithms; Visualization;

fLanguage

English

Publisher

ieee

Conference_Titel

Visualization 2000. Proceedings

Conference_Location

Salt Lake City, UT, USA

Print_ISBN

0-7803-6478-3

Type

conf

DOI

10.1109/VISUAL.2000.885689

Filename

885689