Kangaroo

Information

THIS FORUM IS NO LONGER ACTIVE. PLEASE POST ANY NEW QUESTIONS OR DISCUSSION ON:

https://discourse.mcneel.com/c/grasshopper/kangaroo

The discussions here are preserved for reference, but new questions posted here are likely to go unanswered.

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

Website: http://kangaroo3d.com
Members: 3024
Latest Activity: yesterday

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.

Kangaroo2 is now included with Rhino6, you do not need to install it separately.

You can download it for Rhino5 from here:

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

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

The main source of example files for the latest version is here:

https://github.com/Dan-Piker/Kangaroo-examples

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

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News and Updates

Force polygons of equilibrium structures

I have recently been exploring some reciprocal force diagrams using Kangaroo. From the 1869 paper by James Clerk Maxwell On reciprocal figures, frames and diagrams of forces : …to construct the Polygon of Forces, by drawing in succession lines parallel and proportional to the different forces, each line beginning at the extremity of the last. If the forces acting at the […]

Minimal surface puzzle

The top row shows three different minimal surfaces from the same boundary curves. The bottom row shows the same 3 surfaces rotated and in a different order. Which number corresponds to which letter?

Orthogonal Clustering

I’ve always aimed to make Kangaroo a specifically architectural physics engine. While it shares many characteristics with similar engines used for other purposes, such as games and animation, it has some features that are uniquely suited to designing buildings. Form-finding and physics-based-modelling often result in curved shapes, with an elegant and natural appearance which is something […]

Variation from Uniformity

All of these triangles are identical and equilateral: In architectural geometry over the last few decades, a common topic of research has been how to build and clad doubly curved surfaces in an efficient way. While computer aided manufacturing has made it possible to make buildings where every panel has slightly different dimensions, there are […]

MeshMash!

As regular readers of this blog will know, I’m passionate about the use of relaxation and force-based methods for optimizing geometry in a very interactive way. There is a great variety of form-finding that can be done by assigning physical forces as interactions between sets of particles. However, in my investigations so […]

More…

Comment Wall

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Comment by Aurea Botelho on April 17, 2014 at 5:23am: I have uploaded Kangaroo and it's not working at all :/

Comment by chaz on February 12, 2014 at 11:56am: hey guys im having a severe problem. I cant find kangaroo anchor points while im using the kangaroo plugin! please help

Comment by ALI ESLAMI on February 12, 2014 at 4:29am: kangaroo+k3dsurf

form finding

form finding 2

Comment by andres obregon on January 9, 2014 at 2:07pm: Juan

thank you , it is working now.

Comment by Juan Carpio on January 9, 2014 at 10:14am: Hi Andrés. Just make flatten at "Force Objects".

Comment by andres obregon on January 9, 2014 at 9:09am: Hello All.

I am testing the catenary example, but it does not work, I have an error 1. Solution exception: Index was out of range. Must be non- negative...

somebody could explain me how do I fix it?

Thank you.

Catenary-r.ghx

Comment by Akims H on December 30, 2013 at 5:04am: Has anybody can help me?

I install kangroo in right components folider
but still don't have this component

please help me!
thanks
akims

Comment by Luis García Lara on December 14, 2013 at 3:27pm: Hi Daniel,

this is my first try with origami folding, i use the example file with the new component mesh foldings but i miss something...
i need to put some anchor points?
Thanks in advance

Origami_example%2B.gh

Comment by Dēmiurgos on December 9, 2013 at 11:10pm: Hello everyone.

I was looking for the extra Kangaroo components. Does any have some links for downloading?

Greets.

Comment by Shridhar Mamidalaa on November 23, 2013 at 9:29pm: Hi, all

Kangaroo has been able to do a lot simulations, is it also possible to do "CFD" like flow with points or meshes which will be fine if its happening through a curve guidance... but is it possible..??

Any ideas.??

Thank u..