Terrain Surface Level of Detail (LOD)

Overview

Continuous LOD on Regular Grids

After extensively studying and implementing terrain LOD, i've come to the conclusion that the most promising approach for general-purpose full interaction with real-world data is Regular Grid LOD.

LOD on TINs

A TIN (Triangulated Irregular Network) is another common way to represent a surface.  For some specific applications and data needs, they can be more appropriate than regular grid approaches.

LOD Spherical Surfaces