Additional images: Anaglyph, Anaglyph Wireframe, Parallel Stereo
The ellipsoids are a 3 parameter family of quadratic algebraic surfaces that (up to a rigid motion) can be put into the form: (x/a)^2 + (y/b)^2 + (z/c)^2 = 1. The three parameters a,b,c are called the semi-axes of the ellipsoid. When two of them are, the ellipsoid is called a spheroid and in this case the ellipsoid is a surface of revolution. Of course, when all three are equal, the ellipsoid is a sphere.
See QuadraticSurfaces.pdf. Other algebaric surfaces that has cross-sections of conic sections are: ellipsoid, paraboloid, hyperbolic paraboloid, hyperboloid of one sheet, hyperboloid of two sheets
Ellipsoid Surface Parametric Equations x = aa * (cos(u) * sin(v)) y = bb * (sin(u) * sin(v)) z = cc * (cos(v))
3DXM-J for Ellipsoid vmm_ellipsoid.jnlp