I want to create a shape that goes from
((x+R)*(x-R) & (z+R)*(z-R))
at a specified y height
to
(sqrt(x^2+z^2)-R)
at another specified height in y.
How can I do this? The idea is that I bind the thing with box
{-<R,H1,R>,<R,H2,R>}, so that it goes from square to circle. Perhaps, if
there is a way, could someone explain how to "gradient" between other
shapes? Say, a triangle or a star?
