Christopher James Huff wrote:
> The problem is that it has non-0 second derivative when distance/radius
> equals 0, which is at the very edges of the blob components where the
> function gets chopped off. Because of this, while the surface is
> continuous, it has abrupt changes in curvature. 
>
That's what I mean -- these "abrupt changes in curvature" when looking 
at the blobs. It needs to get fixed. 

> 6*r^5 - 15*r^4 + 10*r^3
> 
> with r = distance/radius in the first equation. It has a second
> derivative which is 0 at r = 1, and seems to give a more fluid, less
> chunky looking shape as well. 
>
I see. Thanks for pointing that out. 

Wolfgang

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