How to have a Voronoï effect without loosing original shape

[LordoftheFleas]

@Pierre_Est

I’m just wondering why is there a scale value of 0.1 just before the offset value.
From what I understand, it’s used for controlling the thickness of the mesh.

Exactly! You can Link this with the thickness by a driver:

1. Expose the offset scale to the Genodes Input:
   

   

2. Copy the thickness as a driver
   

3. and paste it to the Geonodes Input:
   

   

Now the two values are linked and controlled from the Thickness.

There may be some problems with the mesh at the top:

which you can solve my moving the vertices in edit mode a bit downwards
shrinkwrap with thickness_2.blend (111.3 KB)