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: 360
Latest Activity: Apr 27

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 Denton Fredrickson on August 2, 2017 at 6:12am

Ah, okay.  I have separated the Tif into two Jpegs (one for the DB and one for the TB) and it is working well for what I need.  

Thank-you for the quick response!  

Comment by Andrew Heumann on August 2, 2017 at 4:41am
Hi Denton - I have no idea. I was unaware Tifs with alpha channels had ever worked with my components - this is not by design, just a product of Rhino's own handling of simple materials, I guess. The component is designed to be used with a separate file representing the alpha channel (the transparency bitmap input) and I have found Jpegs work the most consistently.
Comment by Denton Fredrickson on August 1, 2017 at 11:40pm

Hi Andrew,

First of all, thank-you for your incredibly useful plugin.

I have been mapping images (.tif with alpha masks) to surface geometry using your custom preview materials object (connected to DB).  In the previous Rhino WIP (June 2017, I believe), the alpha channel was working quite well.  With the new WIP (2017-07-25) the alpha channels aren't being recognized.  Do you know why this might be?

Thanks for your time.

Comment by Andrew M on July 7, 2017 at 1:28am

Hi, I am wondering if there is a way to generate full layer paths (create the layers+sublayers in the Rhino doc) from within the "CreateModifyLayers" function through ghypythonlib. At the moment I can only get it to generate parent layers, even using the proper syntax (parent_layer::sublayer). Using the Grasshopper component itself presents no problems, but I see no keyword argument or input that would allow me to do this in python. Thanks for any help. 

Comment by AJ on February 27, 2017 at 2:49am

sorry for noob question. how do you use wildcards. i saw some Regix stuff going on but.. 


Comment by Olivier Suire on November 14, 2016 at 7:44am

Hi !

I noticed that I could not retrieve the "Material name" attribute from blocks.

Comment by Samuel Wilson on October 25, 2016 at 7:23am

Andrew - thank you. I should be able to figure something out now.

Comment by Andrew Heumann on October 24, 2016 at 4:32pm
Hi Samuel - this is expected behavior. Only objects in Rhino have attributes - once you move your curves you're actually making a new copy that only exists in grasshopper, and thus has no attributes. Is there a reason you cannot use the attributes from the original geometry reference?
Comment by Samuel Wilson on October 24, 2016 at 3:24pm

I'm having an issue with accessing object attributes after using the Move component - after a set of curves is moved by a set of vectors, attaching the resulting geometry to the ObjAtts component results in an error "1. Solution exception:Object reference not set to an instance of an object." . Flattening/grafting/etc the geometry does not resolve the issue. See attached image 2016-10-24_17-21-53.png

Comment by Steve TZ on August 27, 2016 at 7:48pm

Andrew - I tried your suggestion and I am able to bake the hatch into the Rhino document but the hatch geometry output is still not generating any results.  I'm basically just trying to run that output into a custom preview component so that I can see the hatch pattern and assigned colors before baking them. 


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