algorithmic modeling for Rhino

Giulio Piacentino's Friends

  • paratinadana
  • Bert Gay
  • s s solomon
  • shalom buberman
  • Jakub Kądziela
  • Jacky Liang
  • Marcus
  • Thomas
  • Mike Pacheco
  • Jeroen Coenders
  • Maria Chiara Virgili
  • liliang
  • Flori
  • Salvo Pappalardo
  • Daniel Adams

From my blog...

Weaverbird – Topological Mesh Editor

Weaverbird is a topological modeler that contains many of the known subdivision and transformation operators, readily usable by designers. Instead of doing the work repeatedly, or sometimes using complicated scripts, this plug-in reconstructs the shape, subdivides any mesh, even made by polylines, and helps preparing for fabrication. Weaverbird – No expiry. For Rhino 4/5 […]

Grasshopper tools in C#

Grasshopper features an impressive amount of highly interlinked components – from lines to trees, from circles to graph editors. Sometimes, however, when design tasks become more advanced, we might need to further customize this plugin by directly borrowing from Rhino commands. With these scripting components, the user can quickly solve otherwise more complex design behaviors. […]

Knitting patterns on a surface in Grasshopper

Last week I have been visiting my brother in Barcelona. Maybe I should blame the maritime environment if I started experimenting with knots and threads. So, what I am going to show you today is a method to digitally knit yarn in Grasshopper. A similar definition to make a chaining fabric is provided at the end […]

Giulio Piacentino's Groups

Giulio Piacentino's Discussions

obtain component from parameter
2 Replies

Started this discussion. Last reply by Giulio Piacentino Nov 6, 2013.

0.9 double loading warnings
5 Replies

Started this discussion. Last reply by Danny Boyes Aug 15, 2012.

Times of change
52 Replies

Started this discussion. Last reply by djordje Aug 3, 2012.

GhPython component 0.5 released
1 Reply

Started this discussion. Last reply by Anders Holden Deleuran Jun 19, 2012.

Used WeaverBird on a project?
22 Replies

Started this discussion. Last reply by Giulio Piacentino May 17, 2013.


Giulio Piacentino's Page

Latest Activity

Giulio Piacentino replied to Jesse Kirschner's discussion How to achieve similar object preview as Grasshopper
"Hi Jesse you are correct. Here is an introduction. I hope this helps, Giulio--Giulio Piacentinofor Robert McNeel &"
Sep 12
Giulio Piacentino replied to Jose Joaquin Sanchez's discussion Wb cannot find Rhino nor GH in the group Weaverbird - Topological Mesh Editor
"This installer was released during the Rhino 5 WIP period. There have been some changes since, and they cause this error message at times. Just install manually (like with most other add-ons) by donwloading the no-admin zip package from here. Giulio"
Sep 5
Giulio Piacentino replied to Carl Christofferson's discussion weaverbird installation problem in the group Weaverbird - Topological Mesh Editor
"What Service Release of Rhino 5 do you have? Giulio--Giulio PiacentinoWeaverbird development"
Sep 2
Giulio Piacentino replied to Carl Christofferson's discussion weaverbird installation problem in the group Weaverbird - Topological Mesh Editor
"I think you can install the no-admin version manually, then. I do not really know what is causing this. Thanks for letting me know, though. Giulio--Giulio PiacentinoWeaverbird development"
Aug 31
Giulio Piacentino replied to ethan gross's discussion What happened to my Python?
"Yeah, sometimes this happens when you open a file by stepping into a function (breakpoint + F11) and inadvertently type something in there later... Giulio--Giulio Piacentinofor Robert McNeel &"
Aug 27
Giulio Piacentino replied to ethan gross's discussion What happened to my Python?
"Hi Ethan, something might have deleted these files or you might have done that yourself :)You can fix this by re-installing Rhino, or downloading the affected file from I hope this helps, Giulio--Giulio…"
Aug 26
Giulio Piacentino replied to peter fotiadis's discussion C# - from VB to C (and from old to new C) puzzles
"Nothing was embarrassing, at all. I do all these mistakes myself -- that's why I became fast at spotting them now :) Giulio--Giulio Piacentinofor Robert McNeel &"
Aug 19
Giulio Piacentino replied to peter fotiadis's discussion C# - from VB to C (and from old to new C) puzzles
"Hi Peter I took the time to go one script after the other and I fixed all typo's, a couple of errors in the automatic code translation, and a missed conversion to doubles (rather than integers) that was causing issues. It should all be working…"
Aug 19

Giulio Piacentino's Blog

Grasshopper tools in C# - scripting

Grasshopper Tools in C#
Grasshopper tools in C# is a repository of scripts for

most of the recent versions of Grasshopper.

With all its standard components, Grasshopper features an impressive amount of highly interlinked functionality: from… Continue

Posted on March 17, 2010 at 11:00am

Weaverbird - mesh topologies in Grasshopper

Topologies in Grasshopper

Weaverbird is a plug-in for topological transformations in Rhino 4.0 and Grasshopper 0.8. It helps smoothing, modifying and preparing meshes for rapid manufacturing technologies from within Grasshopper.

Contains these…


Posted on March 17, 2010 at 10:30am — 19 Comments

Profile Information

Comment Wall (19 comments)

You need to be a member of Grasshopper to add comments!

Join Grasshopper

At 11:17am on January 17, 2014, Laurent Delrieu said…

Thanks for the explanation on the rabbit. It seems that I will seek some mesh on standford website.

At 4:49pm on June 21, 2013, said…


just started learning grasshopper.

give me some info on nice video tutorials. 

i bought "Parametric Architecture with Grasshopper - Primer guide", currently shipping from Rome.

Italian architects good at Parametric Design?!?

At 12:21am on January 6, 2013, maxleach said…

Hi, I download the new version and it works. The component is producing the list the surface separately. Then I apply them to my roof design. Thank you!

At 8:55am on September 25, 2012, stefano vafiadis said…

Giulio grazie mille dell'amicizia, appena mi viene in mente qualche suggerimento te lo posto anche se devo confessarti che il tuo plug-in ne ha bisogno di pochi, complimenti!

Un saluto,


At 4:51am on January 23, 2012, Roig said…

Thanks Giulio,

I thought it was developed with WB's catmull-clark subd. but for me that result is uncontrollable, but I like the result anyway¡¡

Thank you again, you rule¡¡

At 12:26pm on January 22, 2012, Roig said…

Hi giulio, great fan of yours¡

If you don't mind, i've got a question:

How do you control the mesh in your model (in your own web, see below) so it is arranged where it's possible? I mean, It is a regular mesh('ordenada' in spanish) in the main building and become irregular in the union...

Maybe this place is not the right place to ask you directly, please forgive me if not...

this is what I get:

thank's so much

At 9:06am on September 17, 2011, Matas Ubarevicius said…
Hey man, without your rendering block there would be no tutorial, so thank you. Take care.
At 2:15pm on April 13, 2011, John Dolci said…
No problem Giulio.  I'm always happy to plug's been a great tool.
At 1:57am on January 13, 2011, Dedackelzucht said…
a privilege to get invited by you :-)
At 4:52am on September 26, 2010, Till Mainz said…
Hey Giulio, was nice to see you in Vienna. Are you coming to the Euromold this year? I will be around. Till
At 3:54pm on July 21, 2010, John Gulliford said…
Hey Giulio, big fan....

Was wondering if you have an updated version of baking numbers as curves for the 0.7---- series?
At 11:00am on May 6, 2010, Zach Hines said…
Giulio, sorry I asked to early... It dawned on me that I could just link it with another one of your naming components... Thanks!
At 10:46am on May 6, 2010, Zach Hines said…
Hi, Guilo, wanted to say thanks for the great components!

Also, I had a question about your Bake Attributes component. I want it to bake my object name in this format: obj(123) and it currently looks like this: obj123

Is there a way to add the () before and after the number?


At 3:32am on December 16, 2009, Amir Aafzali (aa) said…
ciao giulio!
volevo sapere se conosci qualche TUTS in Italiano.

At 10:47am on December 15, 2009, Max D said…
u coming to B in J? ;D Max
At 4:31pm on November 13, 2009, Carlos Pérez said…
At 8:16am on October 10, 2009, Marco D'Arcangelo said…
Grazie Giulio, cerchero' di seguire attentamente gli sviluppi di GH, e' stato un piacere incontrarti, buona fortuna e a presto ; )
At 9:47am on October 1, 2009, Elena said…
Ciao, Giulio, eccomi! ;)
At 7:31am on August 8, 2009, Andrea Graziano said…
Ciao Giulio, sto seguendo con molto interesse le tue ultime ricerche e sperimentazioni con GH. Spero a breve di poterci incontrare e parlare.


Search Grasshopper


  • Add Photos
  • View All


  • Add Videos
  • View All

© 2014   Created by Scott Davidson.   Powered by

Badges  |  Report an Issue  |  Terms of Service