LibProcTer is a library for generating planetary terrains, suitable for use in realtime simulations like flight simulators. The library can use existing data and fill in missing data with procedural terrain generation.
A combination of real-world data and procedural textures
Mount Everest, as viewed from Tibet
The problem of the new Mercator projection method
The terrain covers an entire planet
Version 0.0.2 has a simple algorithm for adding detail
Version 0.1.0 comes with a Himalaya dataset