Constructing and Rendering of Multiresolution Representation for Massive Meshes Based on Surface Partition

Multiresolution technique is one of the most efficient approaches to improve the rendering performance, but its design and implementation for massive meshes are still very difficult. This paper researched and realized constructing and rendering of multiresolution representation for massive meshes base on surface partition, which could support vertex-level mesh refinement and provide the best rendering results. This algorithm used two-tier hierarchy. One is cluster hierarchy of progressive meshes for coarse-grained selective refinement. The other is vertex hierarchy which built with progressive mesh in the cluster node to provide fine-grained local refinement. In order to promote the speed of local refinement, this paper used GPU to perform parallel view-dependent refinement for vertex hierarchy, which greatly reduced the load of CPU and enable it to prefetch data to hide I/O latency effectively.