Recreating a fancy cake design - Controling "insert" parameter of polyExtrude

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Hey folks, hope someone can help me

This week I saw this video:
https://player.vimeo.com/video/238616844 [player.vimeo.com]
https://www.designboom.com/art/dinara-kasko-algorithmic-modeling-cake-10-17-2017/ [www.designboom.com]

I got amazed about creating cakes with geometrical shapes and I need some help as
I'm just getting started with Houdini.

I'm trying to replicate the following primitive control operation

This is my current set up

The insert parameter inside polyExtrude2 node has the control over the size of the extrudeFront but I
don't know how to control this parameter outside this node.
I even tried to activate the local Control of insertScale but no success.


I was hoping to control the extrudeFront size variation with a radial black and white gradient but I don't know how.

Any ideas about how to approach this solution?
Rafael Drelich
Designer
FX apprentice
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