Footnotes
- (1)
- J. D. Foley, A. Van Dam, S. K. Feiner,
and J. F. Hughes, Computer Graphics: Principles and Practice,
Addison-Wesley, 1990.
- (2)
- Fifi is called after the dog in the
rogue
computer game installed on most Unix systems in the 1980's, because it
also keeps running around your feet.