Skeleton fattener + mesh cage morph

Hi everyone,

Here is a first prototype of 2 new tools (as a .gha plugin), one for thickening skeletons into closed quad meshes, and one for morphing geometry with a mesh cage.
Fattener.gha (27 KB)
and some notes on how to use it here.
Please bear in mind this is just an alpha version - no promises how well it will work.

(This is following on from some of the earlier discussion in this thread:
Creating smooth meshes from pipes, like TSpipe had in Tsplines? - #8 by DanielPiker)

Thanks to all of you who gave input on that pipes thread. I’ve tried to incorporate some of those ideas here. I haven’t yet figured out how exactly this will fit with custom cross-sections as @gustojunk asked, since it currently makes use the symmetry of the 4 sided struts to avoid twist between nodes. It should be possible though, after a few changes.

and a few example files: (10.8 KB) (1.8 MB) (250.7 KB)
(Armadillo model from the Stanford 3D Scanning Repository) (2.2 MB) (274.8 KB)

(Raptor and horse models from the Aim@Shape repository)

Wish function of SubD of Rhino 7
Kangaroo Mesh Relaxation!
Skeleton Rigging
Tubular minimal surfaces branching
Extracting "valleys" at mesh intersections
Wish function of SubD of Rhino 7
Mapping onto Quads Meshes and Nurbs
Warp Modifier using Grasshopper?
NURBS surface overlap
How would you model this kind of shape?
Tubular trees branching in grasshopper
Help!what's this component?
Fatten + Cagemorph (SUbD)
Component I didn't know
Mesh intersection failed! after weaverbirds Catmull-Clark Subdivision--Is it a BUG?
Creating Manikin 'skin / flesh' (3D Brep) over 'skeleton / frame' (2D Curves, Points) ...?
Refit Mesh Object to new shape
How to create a 3D Delaunay surface
SubD Columns
Smoother geometry | Dendro, exoskeleton or?
Add Mesh Morphing recipe to Rhino?
Cage edit command that can adapt to any form automatically
Fatten with different cross sections
How to model strangler fig structures? (Baubotanik)
Mesh deformation
Smooth netting with the Biomorpher
Smooth netting with the Biomorpher
How to createorganic forms
Does anyone know where
Minimal path networks
Error using Exoskeleton
Like cage edit
Is there a plug in with a more advanced version of the point deform component?
Continuous mesh structures from curves
Can Grasshopper produce the organic shapes of a tree trunk?
How can this be done?
"Best" polyline from curve
Cutting a mesh
Can Rhino simulate where I have to put my drawings?
Pipe in GH cannot close
Netting over a complex shape
Torus Shape/Biarc
Any ideas for meshing a high number of curves using COCOON?
How can i create such shape?
Voronoi 3D Weaverbird Thickened Mesh Invalid
#suggestions add automatic pipe to SubD
C4D Atom Array in Rhino? Wireframe into Mesh
RigidBody to Fattener to CageMorph
Pipe connection Y shape
Pipe Problem in Hexagon Grid-interaction points!
Simplify Geometry with to many Vertices and Faces

Thank you—I can’t wait to dive into this plugin! Your preview video was more than enough to get me excited.

Thanks, these tools are super!

hi Daniel, All,

I can see the thicken examples working, very cool! … but not the morph ones. When I open those I get this error:

missing Combine&Clean from Kangaroo 0.099, even though I have the bundled Kangaroo 2 installed. Any ideas how to fix that?

Oops, my bad, looks like I saved it with an old version of that component used.
These ones should work: (275.4 KB) (2.2 MB) (257.6 KB)


Wow absolutely amazing Daniel
I will schedule to record a video tutorial about it as soon as I can

1 Like



Hi Daniel !

This is going to be a game changer ! Can’t wait to try it.
I will give you feedback.


Daniel, this seems a lot more involved than the other examples you provided in your pdf. Was it done using only those techniques?

It’s the same definition as the ‘Skeleton_Morph’ file posted above, just with a vector moving the points from the rest cage to the deformed cage, and slider connected to a multiplier for this vector. (2.2 MB)


One more example: (19.1 KB)


@DanielPiker this is awesome, combined it with Pufferfish’s Tween Mesh, works quite fast - now I will apply to the animation team of the next Jurassic World :smiley: (2.2 MB)


And one with multiple poses using Pufferfish Tween Through Meshes with the Interpolation options for smooth (non linear) animation transitions. (2.2 MB)



and of course we need one of these: (21.9 KB)

22 Likes (17.5 KB)


Rhino 7 graphics?

1 Like

No, just Arctic mode in 6

1 Like

I mean that these should be used for Rhino 7 marketing graphics!


:joy: got it!


Is this going to work on R5 on a very old 32bit laptop or am I just getting my hopes up unnecessarily?