zeck_tan_black

Equation

\[ x^2+y^2-z^3(1-z) =0 \]

Properties:

  • degree 4
  • almost smooth, except for a point singularity at the origin
  • bounded, contained in a (closed) sphere of radius 1
zeck_blocky_tan
ooh that z-banding really shows in this picture.  i did eventually solve that problem.

Some story

Zeck computed very nicely for me. Using a random projection It folded down into merely two faces. The blocky version looks nothing like what the actual surfaces does.

input