CS 284 - CAGD - Self-Test


"Interpolating Subdivision Meshes with Arbitrary Topology"
by D. Zorin, P. Schroeder, W. Sweldens (1996).


On a piece of paper write down the answers to these questions:

What is fundamentally different in the behavior of the control points
in this scheme compared to Catmull-Clark and Doo-Sabin ?

What kinds of functions can be represented exactly
with the regular Zorin subdivision scheme ?

How does one determine the position of a new edge-vertex
that lies between two non-regular vertices ?

How did Zorin et.al. choose the rules for determining the weights
for placing a new vertex next to an irregular one ?