algorithmic modeling for Rhino

About Grasshopper...

For designers who are exploring new shapes using generative algorithms, Grasshopper® is a graphical algorithm editor tightly integrated with Rhino’s 3-D modeling tools. Unlike RhinoScript, Grasshopper requires no knowledge of programming or scripting, but still allows designers to build form generators from the simple to the awe-inspiring.


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Download and install Grasshopper...

There are many resources available to learn more about Grasshopper. 


Introduction to Grasshopper Videos by David Rutten.

Wondering how to get started with Grasshopper? Look no further. Spend some time with the creator of Grasshopper, David Rutten, to learn the fundamental of Grasshopper. No experience necessary. This video series and many other tutorials are available on our Tutorials page...

Also, check out these tutorial videos...

Rhino WIP for Windows now available

All Rhino 5 for Windows users are invited to Serengeti, where Rhino is developed.

We are inviting current users to try, test, and provide feedback on the work-in-progress (WIP) release while it is still in development.

You will need:

  • 64-bit Windows 7 or above
  • Your Rhino 5 for Windows license key. You can find it here...

Things to try:

  • Since Grasshopper is included with some enhancements, try your existing GH definitions and plug-ins. They should all work. Let us know if they don't.
  • The ghPython enhancements.

Details and download...

Latest Activity

Chapulin Colorado replied to Chapulin Colorado's discussion C# get uv bounds and general use of the sdk
"Cant open the file, crashs when a enable the solver.Spent all my sparetime this days on the icd course, so couldnt look so close. Futuregoal is be able to manage  #%$#@%$ DataTrees, but still a long way... Also would prefer anchovies, when…"
9 minutes ago
Mostapha Sadeghipour Roudsari replied to Mostapha Sadeghipour Roudsari's discussion Butterfly beta release for Grasshopper and Dynamo in the group Ladybug Tools
"I have discussed this in the video. Not much that we can do about this at this point. See here:"
13 minutes ago
Panda replied to Piotr's discussion Time counter
"The time can be also ceaselessly changed!"
17 minutes ago
Guido R replied to Piotr's discussion Time counter
44 minutes ago
Ben replied to Ben's discussion Domain / Series with 0 in the middle
"Thanks Hyungsoo!  Your definition definitely achieves what I was looking for, but I was able to achieve a similar end result through remapping the offset values and passing them through a graph mapper. I like this result a little more as it…"
1 hour ago
Chris Mackey replied to Mike Johnson's discussion Radiation analysis without epw weather file in the group Ladybug Tools
"Sarith, Sorry for the late reply. I tried your file and everything checks out well.  The sky looks as I would expect it: The fact that the csv data has the same length of day for the whole year means that we get some weirdness around the…"
1 hour ago
Guido R replied to Piotr's discussion Time counter
"This Seems to do it:"
1 hour ago
David Rutten commented on David Rutten's video

Grasshopper 2.0 (alpha) Colour Picker

"Ignore the icons for now. It's too bloody cumbersome to program them by hand, which is the only method that works at the moment."
2 hours ago


merge/union on multiple surfaces 23 Replies

Started by kv1 in Discussion. Last reply by Panda 2 minutes ago.

C# get uv bounds and general use of the sdk 8 Replies

Started by Chapulin Colorado in VB, C# and Python Coding. Last reply by Chapulin Colorado 9 minutes ago.

Time counter 4 Replies

Started by Piotr in Discussion. Last reply by Panda 17 minutes ago.

Domain / Series with 0 in the middle 2 Replies

Started by Ben in Discussion. Last reply by Ben 1 hour ago.

Array a vertical curve that changes in height and width, along another curve. 2 Replies

Started by TPinto in Discussion. Last reply by Hyungsoo Kim 3 hours ago.

Blog Posts

New Grasshopper book available!

Posted by David Bachman on March 22, 2017 at 11:57am — 2 Comments

Exhaustive basic cellular automaton

Posted by Kane Borg on March 21, 2017 at 2:08pm

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Tangential Dreams at Burning Man 2016

Posted by Arthur Mamou-Mani on March 19, 2017 at 11:18am

Flocking Dendroids

Posted by Eftihis Efthimiou on March 14, 2017 at 1:49pm — 3 Comments



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