Is there a built in function that I'm overlooking that would allow me to 
compute a normal and tangent vector to a given point on a spline?  I saw 
that Chris Colefax's spline macro can do this but is there something I can 
use with POV's built in splines?  I'm looking at approximating the vectors 
by using adjacent points, but I was hoping there might be something a little 
more accurate.

Skip

Post a reply to this message