David Greaves <dav### [at] telekinesyscouk> writes:

> Hi
> 
> This started with "How can I model a bendy pipe?"
> 
> I got sPatch, created a line with 10 points, lathed it (6 sides) and
> then moved/rotated the hexagonal groups of points. The problem is that
> this doesn't retain the pipe walls equidistant to the pipe's axis :(
> 
> I kinda fixed this by using three groups of hexagons around a bend so
> the 'straight' bits were cylindrical but thats quite fiddly and not
> accurate.
> 
> Then, some reading later I thought:
> Wouldn't it be nice to have a spline that had thickness?
[...]

In my opinion, you are looking for "POV-Ray with Sphere Sweeps". It can
generate "splines with thickness". Besides the source code, binaries 
are available for Mac, Sun, and Linux at 
http://www.informatik.uni-bremen.de/~vader/pss/pss.html .
The page contains also a link to TMPov, a custom version of POV-Ray
for Win95/NT that includes this patch (and many others).

Thomas

-- 
http://www.fmi.uni-konstanz.de/~willhalm

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