Grasshopper

algorithmic modeling for Rhino

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Kangaroo

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: 1702
Latest Activity: 21 hours ago

Discussion Forum

Looping Chain System 1 Reply

I was working on a looping structure, and it has to be transformable, which means that the simulation has to be able to control the rotation of each nodes of the loop structure. But the constrain is the length of each segment has to stay in same…Continue

Started by Jia-Rey CHANG. Last reply by Jia-Rey CHANG yesterday.

line to line, overlap

hi I am trying to arrange the complex geometry according to point attractor, in the way the objects will not overlap each other.So I tried using Kangaroo string to keep the object geometry and then another string from center point to act as…Continue

Started by Josef Odvárka on Sunday.

New origami example 28 Replies

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

Started by Daniel Piker. Last reply by bayupu on Saturday.

Null particles in Kangaroo

Hi,I've modelled a "fabric" mesh falling over a sphere. It generally works but some particles become null and the fabric get a "ladder". I've adjusted the CollideSurface stiffness and Kangaroo convergence settings but these have little or no…Continue

Started by Dean Genner on Thursday.

New tutorial - Developable strips - Part 1 3 Replies

A while ago I posted this video about generating and unrolling developable strips:Today I'm going to explain how to set this up in Kangaroo.There are a few stages to the process:Drawing an initial coarse meshSubdividing this mesh into strips of thin…Continue

Started by Daniel Piker. Last reply by JMF on Thursday.

New tutorial - Developable strips - Part 2 2 Replies

following on from Part 1So now we have a mesh consisting of strips of thin rectangles…Continue

Started by Daniel Piker. Last reply by mohanned Iskanderani Oct 15.

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

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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!!!! :) mesh_sphere_balloon4.gh

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?¿

http://www.grasshopper3d.com/group/kingkong/forum/topics/hinge-erro...

Thanks

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

Hello,

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.
http://www.grasshopper3d.com/group/kangaroo/forum/topics/simulating...
Any help would be appreciated

Sandra

inflatetriangulatedmesh_test_spring.ghx

inflateatriangulatedmesh_test_spring.3dm

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

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

 

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