World must be a spherical planet.

[colbybhearn]

Planet should be large and work with the physics system.
May require significant work for accurate "inward" gravity direction.

[Quintinon]

Initial Commit made
Gravity works
Planets are made, but don't work 100% in the physics system or in drawing
Improvements need to be made in the generation of the TriangleMeshes to allow for more subdividing of the spherical sections.

[Quintinon]

#8 is currently blocking this

More improvements have been made, though many more are still to be done.

[Quintinon]

Documenting idea for later.
Instead of splitting along theta/phi segments, could try to split long a z and |x,y| segment, thus giving uniform triangle mesh distribution? Needs investigation into the math.