About lod on a sphere

I am searching for informations about LOD :

  • a doc with the basics of this code
  • an application to a spherical grid.
    Thank, rom.

Offtopic, but what the heck.

Nice read on all sorts of LODs in this book http://www.lodbook.com/
There’s a great link page to most of the models you know from publications.

LOD of a sphere can easily done by subdividing an icosahedron.
Code is in sphere.c of the GLUT advanced examples source http://www.xmission.com/~nate/glut.html