Daniel Beeston wrote in message <34a84806.4540198@news.povray.org>...
>Why not just add in a W vector?
I think the 4th vector is T (time).
Eric Freeman
--
"Either this man is dead or my watch has stopped."
- Groucho Marx
http://www.geocities.com/SiliconValley/Heights/2354/
http://www.datasync.com/~reba/
