algorithmic modeling for Rhino



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

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

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

Members: 1711
Latest Activity: 11 hours ago

Discussion Forum

Draping a solid over a solid with Shell Force causes error? 1 Reply

I've been using Grasshopper for a while, but I'm only recently getting into Kangaroo. I was trying to create something that would help simulate the draping pattern of a mesh tube ring over a neck form, and it seemed to work pretty well with just…Continue

Started by Gwendolyn. Last reply by Allison Weiler 22 hours ago.

mapping a warped space.

hey, I'm having a hard time solving this one.. I thoght maybe kangaroo can help..I have a point inside a warped box and I'm trying to map that point so I can transfer it to another morphed once I know on which of the surfaces the point is..…Continue

Started by kipodi yesterday.

Colliding Folding Geometry

Hello,I have been trying to work with grasshopper and Kangaroo to generate a folding form. I've followed the 'simple origami' example, with some modification to fit to my crease pattern. I wanted to use the simulation to generate various forms for…Continue

Tags: Geometry, Colliding, Origami, Folding

Started by Sneh yesterday.

Basic Hinge animation 5 Replies

Hi allI was trying to simulate a typical folding structure with Kangaroo, but looks like I cantmake it work. Im totally new with Kangaroo and I've seen this basic tutorial I cant…Continue

Tags: kangaroo, hinge

Started by Nacho35. Last reply by lorna jackson on Tuesday.

Repulsing points by surface

Hi,I'm working on a roof for a station. The roof is a panelised mesh that has had dynamic relaxation performed on it in Kangaroo. This all works amazingly however I'm running into trouble in that, because of the shape of the roof, the gravity acting…Continue

Started by nicebikemate on Tuesday.

Box Collide - multiple boxes 6 Replies

I have been trying to recreate this with the 'BoxCollide' component in kangaroo: …Continue

Tags: collide, cluster, box, kangaroo

Started by Darrin Griechen - IDeX. Last reply by connie starfield on Tuesday.

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 […]


      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


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

Comment by Michael Makris 11 hours ago

Quick question about the "new" Zombie component. How is Zombie Kangaroo different from just using a Sequence component to control Kangaroo Reset?

Comment by Youngjae chung on October 23, 2014 at 6:55pm

having fun with the pull to mesh and equalize components. I think kangaroo is probably one of the most fun plug ins in grasshopper. 

Comment by S.Sifakis on May 20, 2014 at 1:11pm

Hello Daniel,

I am trying to inflate 4 balloons within a box which itself also inflates. I would like to constraint the balloons inside the box but it is not working. The external surface of the inflatable object collide with the exterior surface of other objects but not the exterior with the interior. Is there something wrong with my definition or there is another way to do it?

Any help on this matter would be really appreciated since it is part of my thesis project!!

Thanks!!!! :)

Comment by Luis García Lara on April 17, 2014 at 9:05am

Hi Daniel,

i'm having an error using KingKong plug-in, this error come from the kangaroo cluster, I think it's for the change of the hinge component in the last update of kangaroo, i'm wondering if someone can share the password for update the cluster?¿ or update the cluster and share again for continue using this nice plug-in?¿


Comment by S.Sifakis on April 17, 2014 at 5:32am


I am trying to create constaint on  an inflattable mesh by using a curve as a spring. I used the mesh collide  component in order to deform the mesh following the curve as a constraint but the mesh doesn't seem to recognize it. I am working on the file that originated from this discussion.
Any help would be appreciated




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


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".  


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