algorithmic modeling for Rhino




Chameleon is a plugin for both Grasshopper and Revit with a focus on interoperability, simulation, and efficient practice workflows. Chameleon’s main advantage is its ability to facilitate easy transfer of geometric data between Grasshopper and Autodesk Revit, but also includes other valuable tools to make life easier, both in Grasshopper and Revit.

Location: Washington, DC
Members: 243
Latest Activity: Apr 30

Discussion Forum

chameleon is not installing in revit 2016 4 Replies

I have downloaded the chameleon plugin, It has been installed in grasshopper but when I am installing in revit it's not installing, Please help me. How to install in revit?Continue

Started by aman gupta. Last reply by Luigi Olivieri Jun 13, 2019.

New Chameleon Available 29 Replies

Hi all,The new Chameleon ( is finally here, check it out! now supports editing adaptive…Continue

Started by Hiroshi Jacobs. Last reply by MHMOD DEEP Sep 8, 2017.

running Chameleon in revit

Im facing a problem with the Chameleon while trying to push from GH to Revit, attached below is the error message, any help is higly appreciated.…Continue

Started by MHMOD DEEP Sep 8, 2017.

Revit-to-Grasshopper orientation misalignment

Hi all,While transferring geometry from Revit to Grasshopper, I noticed that the geometry does not align to the rhino model. The two files share the same origin, however my Revit project has a…Continue

Started by Mark Pothier Jan 9, 2015.

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Comment by Hiroshi Jacobs on May 4, 2012 at 7:15am

That is the conversion rate between inches and mm.  I suspect your problems is the Rhino file and the Revit file are not using the same unit system.  Please make sure they both have the same units.

Comment by first1 on May 4, 2012 at 3:57am

Why the 3d point which in revit can not be match the origin model in rhino?I found the component bug is  revit 304.8m = rhino 1m !

Comment by first1 on May 4, 2012 at 12:52am

good job!

Comment by Hiroshi Jacobs on May 3, 2012 at 11:59am

Brent - I added a new install package to my website if you want to give that a try.  This version doesn't use the RhinoCommon.dll so hopefully it will work more seamlessly for you.

Comment by Brent Daniel White on May 3, 2012 at 10:09am

Alright, I'll continue to play with it and let you know if anything changes.


Comment by Hiroshi Jacobs on May 3, 2012 at 7:31am

Hey Brent,

I'm working on a better way to install this thing, the Revit API developers always have to make things more difficult than they should be.  It looks like everything is in the right place  You will also need to make sure all of the files are "unblocked".  The install batch file is supposed to do that for you, but I guess that's not working in your case.  To unblock a file you can right-click on it and go to Properties, then on the General tab you will see a button "Unblock" if the file is blocked.  If you don't see the button it is not blocked.  You have to do this for all the files.  Don't forget to restart Revit when you're finished.

Comment by Brent Daniel White on May 3, 2012 at 7:02am

This is where I have placed the rhinocommon file

C:\Program Files\Autodesk\Revit Architecture 2012\Program\RhinoCommon.dll

Comment by Brent Daniel White on May 3, 2012 at 6:57am

Yes, I'm running windows 7. Those files were already there but I copied over them with new ones to test and it still pulls the error. Could it have something to do with the rhinocommon.dll? I slavaged that file from my grasshopper plugin...

Comment by Hiroshi Jacobs on May 3, 2012 at 6:36am

Hi Brent,

Assuming you're running Windows7, the Chameleon.addin file and the "Release" folder in the zip download should be placed in the following folder on your machine:


(replace Hiroshi with your username)  

Let me know if that doesn't work.

Comment by Brent Daniel White on May 3, 2012 at 6:10am


I'm having trouble getting this up and running. I'm getting the error you describe in the manual that can be fixed by putting the rhinocommon.dll in the same file as the revit.exe. I've place both ChameleonRVT.dll[given in the dowloaded zip file] and the rhinocommon.dll [pulled from my grasshopper plug-in] and it sill pulls the error.

Any suggestions? I'm anxious to get this running. I'm working with Revit2012 and have tried with rhino4 and 5




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