Antique Clock
Modeling and rendering: Gavin Miller
System design: Steven Rubin
The clock on the right is the sames is the one on the left, but shaded with an accessibility function. This computes the radius of the largest sphere which can touch the surface tangentially and not intersect any surface. Algorithms for computing this efficiently are given in my 1994 SIGGRAPH paper.
© 1993 Apple Computer, Inc. All rights reserved.