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: 2549
Latest Activity: 20 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

Circle packing definition 26 Replies

Here's an example definition showing how to generate a circle packing from an arbitrary triangulation:…Continue

Started by Daniel Piker. Last reply by Dmitry 20 hours ago.

Kangaroo2 - About the combination of "Zombie Solver" and "Rigid Body" 7 Replies

Hello DanielWhen combining "Zombie Solver" and "Rigid Body" In Kangaroo 2, the program does not seem to work properly.Is this a bug?Thanks already for your help,Continue

Tags: Rigid Body, Zombie Solver

Started by Shuta T. Last reply by Dylan Slater yesterday.

Relaxation to Flat Geometry 4 Replies

Has anyone encountered anything like taking 3D geometry and relaxing/flattening it, like the unroll tool but the resulting faces stay together.Similar to how UVW Unwrapping works (Ive attached an example image). In the linked video at 3.20 he…Continue

Tags: uvw, flatten, relaxation, relax, flat

Started by Matt Marshall. Last reply by Matt Marshall yesterday.

Solid Mesh Intersection with Inflated Mesh

Hi guys,First time poster, so please forgive the long post and/or any poorly explained information.I'm attempting to simulate pressing a mould into an inflated structure produced by Kangaroo. I've attached my gh definition as well as an image of an…Continue

Started by John Doe yesterday.

RidigBody+SolidCollide

Hi Daniel,I have noticed that it is not easy to achieve an Equilibrium status after collision between ridigbody. Especiallty when two solid Body are not falling down on the 'ground' but colliding in spaceA GH Definition uploaded.In this case I fixed…Continue

Started by Jon on Saturday.

loading errors 6 Replies

can someone help me figure out, what is happening here? as soon as I've installed kangaroo, there are errors when grasshopper is loading... I've followed the guidelines during installation (unblocking zip file, Kangaroo2.gha…Continue

Started by paul. Last reply by paul on Friday.

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 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!
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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