GigaWalk: Interactive Walkthrough of Complex Environments [article]

William V. Baxter III, Avneesh Sud, Naga K. Govindaraju, Dinesh Manocha
2002 Symposium on Rendering  
We present a new parallel algorithm and a system, GigaWalk, for interactive walkthrough of complex, gigabytesized environments. Our approach combines occlusion culling and levels-of-detail and uses two graphics pipelines with one or more processors. GigaWalk uses a unified scene graph representation for multiple acceleration techniques, and performs spatial clustering of geometry, conservative occlusion culling, and load-balancing between graphics pipelines and processors. GigaWalk has been
more » ... to render CAD environments composed of tens of millions of polygons at interactive rates on systems consisting of two graphics pipelines. Overall, our system's combination of levels-of-detail and occlusion culling techniques results in significant improvements in frame-rate over view-frustum culling or either single technique alone.
doi:10.2312/egwr/egwr02/203-214 fatcat:wkv2g3qoyjgjxdyrpv5wk2ec6q