algorithmic modeling for Rhino



Welcome to Human for Grasshopper!

Because humans are animals too!

Any similarity to my own name is, of course, a pure coincidence.

What does it do?

There are two sets of components with different functions:


Extends Grasshopper's ability to create and reference geometry including lights, blocks, and text objects. Also enables access to information about the active Rhino document, pertaining to materials, layers, linetypes, and other settings. 

Includes the following components:

(Those in bold are new components with this release.)

  • Object Creation
    • Bake Geometry with Attributes
    • Create Hatches
    • Create Justified 3d Text
    • Create Lights
    • Define Block
    • Place Blocks
    • Create Object Attributes
  • Display
    • Custom Display with Variable Lineweights
    • Custom Display with Bitmap Textures
    • Render Text to Screen
    • Render Mesh to Screen
    • Render Curve to Screen
    • Render Point to Screen
    • Screen-Oriented Text
    • Screen-Oriented Mesh
  • Document Information
    • Font Table
    • Material Table
    • Layer Table
    • Hatch Pattern Table
    • Linetype Table
  • Document Modifications
    • Create/Modify Layers
    • Create/Modify Materials
  • Miscellaneous
    • Document Units
    • Directory Contents
    • Delete Objects on Layer
    • Dynamic Item Selector
  • ​Reference
    • Dynamic Geometry Pipeline
    • Explode Hatches
    • Explode Blocks
    • Explode Blocks Recursively
    • Get Object Attributes
    • Light Properties
    • Sort Objects by Type
    • Text Object Info
    • Get Objects by Selection
    • Get Objects by Layer
  • Texture Mapping
    • Planar Mapping
    • Box Mapping
    • Spherical Mapping
    • Surface Mapping
    • Cylindrical Mapping
    • Custom Texture Mapping


This add-on includes a set of components to aid in the advanced manipulation of data tree structures.

Includes the following components:

  • Assign Paths 
  • Graft by Data
  • Match Paths (this is pretty much the same as GH's native "Unflatten" - but it came first so I'm leaving it in :D )
  • Path Description
See the images and reference files for a detailed explanation of the function of these components. 

I'd also like to acknowledge the creators of Horster Reference, the first Grasshopper add-on to expose advanced reference functionality. These components definitely build on the work they have done, although they take a slightly different approach.

To install:

  • In Grasshopper, choose File > Special Folders > Components folder. Make sure you delete all earlier versions of HDTReference.gha, TreeFrog.gha, and Human.gha if there are any. Save the gha file to that directory.
  • Right-click the file > Properties > make sure there is no "blocked" text
  • Restart Rhino and Grasshopper


Members: 303
Latest Activity: on Thursday

Reference Guides

Discussion Forum

New version of Human for download 51 Replies

It's been more than a year since the last release of Human - so I'm excited to share with you the latest version, packed chock-full of new functionality. See the release notes for details on the new features. A few of my favorites:Ability to define…Continue

Started by Andrew Heumann. Last reply by Nick Tyrer Jan 26, 2016.

Comment Wall


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Comment by Andrew Heumann on August 24, 2016 at 7:26am

Hi Martin - This appears to be a bug with the new RhinoCommon shipping with Rhino 6 WIP. I am following up with the rhino developers here:

In the meantime the attached update to Human should eliminate the error. Human.gha

Comment by Martin Siegrist on August 18, 2016 at 6:49am

Hi Andrew, I downloaded Rhino 6 WIP and started to play around a bit. The Human Layer Table and Object Attributes components are red.

This is the error:

1. Solution exception:This object cannot be modified because it is controlled by a document.

Comment by jayant khanuja on July 22, 2016 at 6:55pm

Hi Andrew.

Thanks for the reply. I am using v-ray render.

I understand now why it isn't happening. I will try to find a way around it.


Comment by Andrew Heumann on July 22, 2016 at 5:10pm

Hi Jayant. What render plug-in are you using? V-ray ignores the intensity of rhino lights in favor of its own intensity value, which my components do not currently control. You should however see a difference in the Rhino Rendered viewport. 

Also, make sure your intensity is between 0.0-1.0. 

Comment by jayant khanuja on July 22, 2016 at 4:38pm

Hi Andrew.

Great plugin.

I am working on an animation and using create light component, but once it gets baked the intensity of baked light in rhino does not change.

Any suggestion will be really helpful.


Comment by Stefano Corciolani on July 22, 2016 at 9:46am

Thanks Andrew! I was following a completely wrong path.

I will practice more just to understand, but your components work like a charm!


Comment by Andrew Heumann on July 22, 2016 at 8:19am

Hi Stefano - 

Grasshopper curves do not have an intrinsic "line width" property. When I draw lines with my custom preview component, I am overriding the DrawViewportWires method and calling args.Display.DrawCurve with the optional thickness argument. 

Hopefully the above script will get you started. 

Comment by Stefano Corciolani on July 22, 2016 at 7:47am

Hi Andrew! First of all thanks for your work, it is exactly what I needed! Great job!

My problem was to change line display thickness in rhino viewport. I enabled "PrintDisplay" and I wrote a tiny VB script component referencing the object and changing its linewidth but, of course, I got it changed directly in the Rhino model, not in an output copy from GH.

I know that it is a newbie question, but may I ask you what is your approach in this case?


Comment by Martin J on June 29, 2016 at 4:58am

Hi Andrew,

That is great! Thank you very much. I have done some quick testing, seems to be working fine.

About the drifting problem, this is slightly annoying, but can try the toggle command.

Many thanks!

Comment by Andrew Heumann on June 27, 2016 at 6:58am

Hey Martin - added camera up to viewport properties and modify viewport components. See if this works for you! 



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