Updated November 3, 2004
See also: Level Design - Editors -- Vertex Manipulation -

How to Make a Sphere in WorldCraft

(1) Use the Brush tool to create a three-sided spike --
( also known as a tetrahedron).

(2) Create copies of the tetrahedron.

(3) Arrange the tetrahedrons into sphere, using brush rotation
and vertex manipulation:

A) One point from each tetrahedron at the center of the sphere

B) Remaining points on the outside of the sphere

C) All tetrahedrons fit together nicely

Updated November 2004:
Thanks to Kristian F. for these helpful screenshots!