The Program
The Program: PM.tgz
To compile you'll need Qv which is an Open Inventor knock-off and
OpenGL. The program takes an VRML file containing ONLY a
Socoordinate3 and an Indexed Face Set and outputs a file containing
the same, only with many less faces. It removes faces by doing Edge
Collapses. And can replace them with the inverse, Vertex Splits.