On Mon, 20 Sep 2004 08:51:33 -0500, "Steve Shelby" <ssh### [at] shelbyvisioncom>
wrote:
> It is very difficult and
> tedious to try to get a specific shape this way.

If you are able to find any editor which use tcb splines (aka kochanek
bartels) then you can use it and take it's parameters into script for MegaPOV
1.1. TCB splines allows more parameters than just control points. Each end of
the segment has also tension continuity and bias parameters which could make
your live easier. 

Also in MegaPOV there is akima spline type which is known to be "nice" like
handdrawn spline between control points. Perhaps this could be also helpful.

The last is family of x_splines in MegaPOV. general_x_spline is very special
type of spline which allows you to mix interpolation with aproxymation in one
spline. In other words some control points can be used as points crossed by
spline, and some points can be used as magnes but are not within spline.

See: http://megapov.inetart.net/demo/splines.png

ABX

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