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: 2457
Latest Activity: 16 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

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

Tensile 1 Reply

Hi,Does anyone has an idea how can i manipulate the grey section area in the Z axis in orderin order to create a smoother transition between those two.…Continue

Started by Philip Tsekov. Last reply by shehzad irani 19 hours ago.

Test if Simulation has Converged 1 Reply

Is there a way I could output a boolean which would tell me if the solver (kangaroo 2) has converged to a solution? I'd like to use it on order to push a result through, similar to how a data dam works, but only once the solver has stopped…Continue

Started by Daniel Christev. Last reply by Soroush Garivani on Saturday.

Tensegrity structures 24 Replies

In response to a recent comment on this video:  I'm posting the files here. The same grasshopper definition should work with any collection of struts and cables you draw in Rhino. This sort of thing does seem well suited to exploration in…Continue

Started by Daniel Piker. Last reply by Alexis.Ierides Apr 14.

Kangaroo Version 2.3.0 17 Replies

Version 2.3.0 is now available on Food4RhinoChanges:Various minor bug fixesAnchor component now has separate inputs for initial and target locations. This simplifies the…Continue

Started by Daniel Piker. Last reply by Daniel Piker Apr 13.

Problems with Kangaroo version 2.1.3 5 Replies

Dear Daniel, dear all,I am trying to open the file PlanarHex.gh (attached to the message) but there is some problems related to four component that are missing. These components are from Kangaroo 2.1.3 a version that is no more available on "Food…Continue

Started by Angelo Figliola. Last reply by Angelo Figliola Apr 12.

Keyframe animation tests and poseable figure 7 Replies

As shown in the above video, I've been playing around with a very basic system for making keyframed animations from Kangaroo simulations.This is still just proof of concept stage - lots of issues to fix before it becomes very usable, but I'm posting…Continue

Started by Daniel Piker. Last reply by Daniel Piker Apr 10.

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 […]

Comment Wall

Comment

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

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!
Comment by paul piciorul on October 30, 2010 at 3:55am
Thanks for the invitation.
Looking forward to kangaroo's devlpt and tutorials!!!
byebye.
Comment by Ben on October 30, 2010 at 3:28am
Thanks for the invitation. Looking forward to kangaroo's devlpt. Cheers!
 
 
 

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