Reusser wrote:
> 
> I tried many things such as blobs, cylinders, and meshes, but the joints
> got very ugly with blobs where there were three or four intersecting
> cylinders all starting from slightly different places.  If you look by the
> pedals on a bike, there are about five tubes that all affect each other but
> start from different spots.  There are also a couple of bent tubes on a
> bike such as the fork and the spot in the back where the down tubes
> diverge.  Those aren't possible with blobs.

I wouldn't say that, bent tubes could be easily done with a lot of
spherical components.  Also several cylinders joining in one point are no
problem, but it would be quite difficult to do this with patches. 

Attached it the following:

blob
{
  threshold 0.5   
  cylinder { -z, z, 0.3, 1 }     
  cylinder { x*0.3, x, 0.3, 1 }
  sturm 
}

Using megapov's isosurface/isoblob object could be even more flexible, but
also more difficult to handle.

Christoph

-- 
Christoph Hormann <chr### [at] gmxde>
IsoWood include, radiosity tutorial, TransSkin and other 
things on: http://www.schunter.etc.tu-bs.de/~chris/

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