Kangaroo

Information

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: 2799
Latest Activity: Oct 16

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

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

Discussion Forum

kangaroo planarization (methodology)

Hi,I know it can seems a weird question but I would like to know where I can study the theoretical principles of Kangaroo planarization.I reckon it is about an energy applied on the faces through Non Linear Programming but I would like to…Continue

Started by Marinella Contestabile Oct 16.

Kangaroo Inflatable

Hi everybody,I am starting to investigate inflatable shapes using Kangaroo (pressure component).I am not an expert in mesh creation and that's why I would like to ask a few questions.I had a look at the simple example of a cube. Then, I've tried to…Continue

Started by Radis Oct 6.

Difference between Bouncy solver and regular solver in Kagaroo2

Hi all, I have 2 following questions in Kangaroo. Please help me1) I am trying to implement simple tensegrity structure in Kangaroo. I am getting different solution for bouncy solver and regualr solver. Attached my GH file.2) How to define a tension…Continue

Tags: bouncy, solver, members, only, tension

Started by new to gh Oct 3.

Adjusting polygon segments lengths whlie keeping area constant

Hello,I have an estimated polygon of a site area according to some rules and datas that i have. I want to change each length of this polygons segments, while keeping its area contstant as possible. The point is trying to find the polygon with…Continue

Started by Yusuf Reşat Güner Oct 3.

Zombie Kangaroo + Mesh relaxation 6 Replies

Hi all,I am trying to figure out how the zombie component is working. I only want to obtain the outputs from kangaroo to use it for Galapagos (in the end). I am wondering if it is possible to create a mesh relaxation with the zombie component. I…Continue

Started by Stefan Slangen. Last reply by Dallas Swindle Sep 21.

Magnet

Hi allMaybe I'm doing something wrong but it seems that the magnet force for the kangaroo in rhino 6 is repelling the points instead of attracting them to each other.Starting position…Continue

Started by Nicolas Sep 18.

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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 Luca Biselli on October 30, 2010 at 8:04pm: Thanks for the invitation.

Comment by Cristian Luca Atzori on October 30, 2010 at 11:18am: Up and ready to rock :)

Comment by Alexander Kalachev on October 30, 2010 at 10:28am: Thnx for invitation

Comment by Beltrán Fernández Mariño on October 30, 2010 at 9:44am: Thanks for the invitation :]

Comment by Tushar Sharma on October 30, 2010 at 6:30am: thanks for the invitation!!

Comment by Ante Ljubas on October 30, 2010 at 6:27am: Thanks for your invitation giving company to an important development. The book will be out in November and we mentioned your important work along with your renderings. I´m looking forward for more of your stunning developments. Cheers!