algorithmic modeling for Rhino



Hummingbird is a set of Grasshopper components that facilitate the creation of Revit native geometry. This process exports basic geometric properties and parameter data to CSV text files which is used to describe many aspects of the Revit BIM geometry. In Revit this data is easily imported using the Whitefeet Modelbuilder tool (included).

Translating Rhino primative geometry to Revit has been vastly simplified without the need for linking or reference objects. This allows for the downstream Revit model to be modified and adapted for the project duration.


Location: San Francisco
Members: 136
Latest Activity: Dec 15, 2014

Discussion Forum

Issues with simple floor push 2 Replies

Hello Tim and everyone,I am…Continue

Tags: hummingbird, floor

Started by Billie Allen. Last reply by Billie Allen Apr 1, 2014.

Hummingbird Update!!! Units, CSV files, Installer 1 Reply

UPDATES!Units!, Whitefeet…Continue

Tags: Metric, Units, 2014, Revit, CSV

Started by Tim Meador. Last reply by oladayo Jul 26, 2013.

Hummingbird and Revit2013 in Windows 8

Hello all!Anyone tried to use WF ModelBuilder on Windows 8 + Revit 2013, and was successful at that?For all I researched, it seems like a dead end, due to .NET 4.0 which comes pre-installed with…Continue

Started by Daniel da Rocha Mar 25, 2013.

Hummingbird Update - New Level Component

New updates to the Hummingbird component set have been published. The update includes one new component:LevelThe Level component will generate Revit Levels based on the given height and name.  The…Continue

Started by Tim Meador Dec 11, 2012.

Comment Wall


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

Comment by Rasmus Holst on December 15, 2014 at 7:36am


Are you guys gonna make an installer for Revit 2015 anytime soon? :)

Thanks Rasmus

Comment by Darren Chang on September 11, 2013 at 11:50am

Hi, after I updated, the Hummingbird components in my GH have the following error: 1. Solution exception:Could not load type 'WhiteFeet.HummingbirdUtility.CsvWriter' from assembly 'WhiteFeet.HummingbirdUtility, Version=, Culture=neutral, PublicKeyToken=null".

My GH is up-to-date version 9.00056. All the components are unblocked. My previous version of Hummingbird worked just fine.

Does anyone know what I did wrong?

Comment by Carrey on April 23, 2013 at 9:15pm

How should i change the default unit feet to meter or millimetter?

Comment by Advait on April 16, 2013 at 3:45am

hi, I am unable to download hummingbird from link given above can anyone provide me the software?

Comment by Darren Chang on March 8, 2013 at 2:25pm

I'm trying to convert a curve from Rhino to REVIT using the Lines Component. It gave me an error message like below in REVIT. Does a curve must be in a horizontal plane in order to be converted using Hummingbird? I also tried to convert the subdividing points of the curve as Ref Points, but the error message first told me it must be in a Family Editor, and then told me it can't be converted in the given context, while I was in Family Editor. This is also very confusing.

Comment by first1 on February 27, 2013 at 6:37pm

Hey Darren Chang ,all the model data divide by 304.8 ,it can convert FEET to MILLIMETTER.

Comment by Tim Meador on February 27, 2013 at 3:11pm

Hi Darren,

Unfortunately the Revit api is based on feet so we are stuck doing everything in imperial units.

Comment by Darren Chang on February 27, 2013 at 3:03pm

Hey, it seems the default unit in Hummingbird/WF Model Builder is FEET. Is there a way I can convert it to METER or MILLIMETTER?

Comment by Darren Chang on February 27, 2013 at 10:38am

Tim, my office just installed Rhino5 last week. I tried the new version, and it worked! Thanks!

Comment by Tim Meador on February 26, 2013 at 4:31pm

Hi Darren,

Thanks for the post, Please check that you are running the latest version of Hummingbird.  This was a bug that was fixed in the latest version


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