HIPerWall is a 200 mega-pixel tiled display wall consisting of fifty 30" LCDs and a cluster of Mac G5s. A distributed visualization system was developed to render large-scale datasets on HIPerWall. The designated control node broadcasts viewing parameters to all other nodes. After receiving the messages, each rendering node updates its display content.

Video: Visualization cluster.

Hardware-assisted visualization of seismic wave propagation. From the benefits of GPU's stream processing power, the rendering speed was increased by moving intensive computation away from CPU.

Video: Ground displacement.

Visualization of large field-measured seismic datasets. Case studies include NEIC earthquake records, SCIGN GPS network readings, and ground movement measurements obtained from various seismic networks.

The studied building is a 7-story reinforced concrete structure located in central San Fernando Valley, California. The California Strong Motion Instrumentation Program (CSMIP) manages the seismic instrumentation installed throughout this building. A detailed 3-dimensional model of the building was built.  The field measured datasets are discretely mapped onto the geometric model and used to generate temporal simulations reproducing the deformation patterns.

Video: Building's response to the 1994 Northridge Earthquake.

Developed a parallel computing algorithm on a cluster of 25 machines. This approach shows a significant improvement in rendering capacity over existing methods for terrain rendering.