Abstract
Using a parallel FE solver, a 3-D structural analysis, whose degrees of freedom may exceed 100 million, can be performed on a supercomputer such as the Earth Simulator and the IBM BlueGene/L. To dive into such a huge scale structural model with a complicated geometry and search for a specific feature out of massive result data, we propose walkthrough visualization on a client PC terminal. This walkthrough system incorpolates advenced realtime rendering algorithms such as view volume culling, occlusion culling and VRAM management, using a hierarchical domain decomposition data structure. We applied the walkthrough system for the visualization of a structural analysis with 200 million DOFs, and rendering speed of near-realtime level was obtained.
