A LOD algorithm based on out-of-core for large scale terrain rendering

摘要

In this paper, we present an algorithm for large scale terrain rendering, which is an out-of-core, level-of-detail algorithm that supports dynamic updates to the terrain mesh. It draws the terrain directly from the source heightmap data and it is structured around a quadtree of regular grids. There real-time procedural detail can be added to the terrain down to a user desired resolution. Any newly added data will be treated the same as the rest of the terrain mesh, and will be able to be paged in and out from hard disk when needed, to fully satisfy the out-of-core requirement.