Wlodzimierz ABX Skiba wrote:
> 
> I use this feature only to explore iso-functions possibilities of my
> non-linear transformation. But if I want make usefull macro it should be
> possible modify any object, not only described as functions. First one
> is csg, second one is iso-non-linear-transformation, there is place for
> third one but I'm working on it:
> http://www.abx.art.pl/pov/nonlinear/twist.jpg
> 

Every CSG made of cylinders, spheres, cones, boxes, torii should be quite
easy to convert to a smooth isosurface function, the more difficult things
are lathe, prism and meshes.

Christoph

-- 
Christoph Hormann <chr### [at] gmxde>
Homepage: http://www.schunter.etc.tu-bs.de/~chris/

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