Real-Time Volume Rendering of Time-Varying Data Using a Fragment-Shader Compression Approach

Authors:
Binotto Binotto;Joao L. D. Comba;Carla M. D. Freitas
Affiliations:
UFRGS;UFRGS;UFRGS
Venue:
PVG '03 Proceedings of the 2003 IEEE Symposium on Parallel and Large-Data Visualization and Graphics
Year:
2003

Citing 16
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Abstract

The recent advance of graphics hardware allowed real-time volume rendering of structured grids using a 3D texturing approach. The next challenging problem is to extend the algorithms to time-varying volumetric data (4D functions), which consume more storage and are not directly supported in current graphics hardware. In this work we present a new visualization technique that includes (1) a compression scheme of sparse 4D functions into 3D textures, and (2) a visualization algorithm that decompress the stored data from the 3D textures using the programmability of fragment shaders, allowing real-time visualization of such data. We illustrate the system in action with datasets resulting from computational fluid dynamics simulations.