Grasshopper

algorithmic modeling for Rhino

Information

Kangaroo

Kangaroo is a Live Physics engine for interactive simulation, optimization and form-finding directly within Grasshopper.

Read about the new release here

The Discussion Forum below is the best place to ask any questions about using Kangaroo.

(Please avoid posting questions on the Comment Wall, as it does not allow organization of replies)

Website: http://kangaroo3d.com
Members: 2075
Latest Activity: 2 hours ago

You can read an introduction to the ideas behind Kangaroo here:

http://spacesymmetrystructure.wordpress.com/2010/01/21/kangaroo/

Kangaroo2 is now available for testing (see full announcement here). Please bear in mind this is still a work-in-progress, and features are still subject to change.

You can download it from here:

http://www.food4rhino.com/project/kangaroo

The 2.0 download includes a first draft of the manual and a collection of example files.

This thread contains some troubleshooting tips if you have problems getting it installed and working:

http://www.grasshopper3d.com/group/kangaroo/forum/topics/kangaroo-2

Some further example files for version 2.0 can be found here:

http://www.grasshopper3d.com/group/kangaroo/page/kangaroo2-additional-examples

with more to follow - if there is some particular feature you would like more examples of information on please ask there.

The Kangaroo2 solver library is now separate from the Grasshopper components, and can also be referenced and used in scripts, either in the GH VB/C#/Python components, or in RhinoScript/PythonScript in Rhino. Questions about these can also be posted on:

http://discourse.mcneel.com/c/scripting

Kangaroo2 is a complete rewrite, and the main solver/goal/force components are not cross-compatible with the previous version. However, you can keep both versions installed together allowing older definitions to be opened, and for now this is recommended, as there are also several utility and mesh processing functions relevant to both versions.

While v2 introduces many new features and improvements, not all the features from the old version currently have equivalents in the new version, but the plan is to add them all over time.

The links below are for the old version. More documentation and videos for the new version to appear soon.

example files(for version 0.099):

http://www.grasshopper3d.com/group/kangaroo/page/example-files

manual(for version 0.099):

http://docs.google.com/View?id=ddpv

getting started video:

http://vimeo.com/20308963

demo videos:

http://vimeo.com/album/199263

Some more tutorial videos from EXLAB:

http://vimeo.com/exlab/videos

Discussion Forum

KangarooSolver.dll problem 6 Replies

HiI use a lot of Kangaroo and Kangaroo 2 without any problemI wanted to start scripting to write my own Goal objects and use Step by Step example file for Kangaroo 2. It seems I have got some problem with managing assemblies - even though I have…Continue

Started by Aleksander Dynarek. Last reply by Long Nguyen 2 hours ago.

Source Code 1 Reply

Is there any way to actually view the source code for Kangaroo. I am able to open the dll in Visual Studio, but would like to view the algorithms used by Kangaroo. Continue

Started by Sean Carr. Last reply by Long Nguyen 2 hours ago.

New origami example 44 Replies

Origami_simplified.ghThis example shows the use of the new user object…Continue

Started by Daniel Piker. Last reply by ndy_123 Feb 2.

Envelop of lines network , mesh and funicular structures 21 Replies

After playing with Kangaroo on this discussion and as I like a lot Marc Fornes structures I wanted to go a bit…Continue

Tags: funicular, kangaroo, envelop, network, topology

Started by Laurent Delrieu. Last reply by Laurent Delrieu Feb 1.

looking for Threads/ Wooly paths definition 14 Replies

Hello I am looking for Threads original definition by Daniel Piker. It used to be included in download file with kangaroo... thanks in advance for info -WContinue

Started by Wiktor Kidziak. Last reply by Tim Shapkin Jan 23.

Formfinding using AreaWeight 1 Reply

I'm trying to use the AreaWeight component as a force object for form finding a mesh, however, when I then run Kangaroo, the mesh just disappears. I don't have the same issue when using a unary force - however, I am looking to use the component for…Continue

Started by Brianna T. Last reply by Laurent Delrieu Jan 22.

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

Comment by Moonbeast on Monday

Daniel,

Is there a way to measure kinetic energy of a system in Kangaroo 2 as in Kangaroo 1? Just trying to figure out if a system has reached equilibrium, keep up the great work.

Comment by Hans Rebel on December 20, 2015 at 12:07pm

Hi Daniel
I am excited by your kangaroo 2, thank you.
Trying to define goals to infate a mesh,  I came across your Vertex_areas_comparison.gh.
I added a 4. way witch uses the crossproduct which gives me the force_vector as well.
With that I defined an InflateMesh goal, which gives me good results for regular meshes.
The idea is just moving the face_vertices by the force_vector and let the solver add the vectors at a vertex.
Could you please have a look and tell me if I correctly handle that goals.
That would be a great help for further experiments.
Thanks again!

Vertex_areas_comparison_XProd3D.gh
151220_MeshInflate_VB_triags_XProd.gh

Comment by farzane o on November 9, 2015 at 2:28am

hi. I just started to work with kangaroo. I wondering do only I have problem with extracting this examples or there is a problem with them?http://www.grasshopper3d.com/group/kangaroo/page/

example-files

Comment by kipodi on September 29, 2015 at 7:53am

Hello, wondering if kangaroo has a solution for a conical mesh..or an idea on how to create one.

Comment by Charles Portelli on August 21, 2015 at 9:47am

The issue below was resolved once i turned off the custom ribbon layout i created.

Comment by Charles Portelli on August 21, 2015 at 9:05am

Hi All, I got a new computer and tried installing kangaroo but the tab does not show up in gh. I"ve tried placing the files in this directory:

C:\Program Files\Common Files\McNeel\Rhinoceros\5.0\Plug-ins\Grasshopper (b45a29b1-4343-4035-989e-044e8580d9cf)\0.9.76.0\Components

I've also tried placing the files in this directory:

C:\Users\MYNAME\AppData\Roaming\Grasshopper\Libraries

I"ve checked the security settings on the files. They are not blocked. Any ideas how I can resolve this?

Cheers,

Comment by wenyu on June 7, 2015 at 5:03pm
Comment by wenyu on June 7, 2015 at 5:01pm

origami%20simulation.3dmorigami%20simulation.gh

Hi Daneil, I use your definition and add string force to it because i want to make the folding surface into a cylinder shape.But the shape doesn't look like so round , so i want to add one more string force after the surface has already been folded, but it didn't work, the error message is solution exception.

Hope someone could help me !!!

Comment by Juan Camps on May 24, 2015 at 8:19pm

Hi All, I have a problem with a surface I'm designing (see screenshot attached). Since the surface height changes, the height subdivisions (V coordinate) of the diamonds make the diamonds irregular. I want the diamonds to be as similar as possible in size.

Any help/ideas would be appreciated! Thanks!!

Comment by Ebrahim Aly on May 20, 2015 at 7:19am

Hello Daniel,

I'm new at Kangaroo and I've a problem whenever i try to run one of the example files downloaded with kangaroo I get the error shown in the attached screenshot, can you help me with this please?

 
 
 

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