generateShapeField

A lumpy body from its own seed, on the measured ellipsoid.

The ellipsoid is a fact and the lumps are not, which is the same split the terrain generator makes: SurfaceParameters takes a published maxElevation and generates the shape below it. Here the published thing is the tri-axial extent and the generated thing is everything between the samples.

Two fields, because one does not read as a rock. The fBm gives the broad asymmetry — a body that is heavier on one end — and the second, sharper term is folded to be negative only: craters and spall scars go in, they do not come out. A symmetric noise field makes a potato; an asymmetric one makes something that has been hit.

seedSeed

Undocumented

shapeGeneratedShape

Undocumented