Daniel Piker's Blog (28)

http://www.food4rhino.com/app/kangaroo-physics

The big new feature here is beams. This was one of the main motivations for adding 6 degree of freedom nodes, and something I've been meaning to include in Kangaroo for several years.

Before, with only 3 degree of freedom nodes, it was very hard to model bi-axial bending behaviour and torsion. Now, when each end of the…

gifmaker.gh

Despite the age of the format, gifs remain a popular and very widely supported way to share small animations. The slider animation function in Grasshopper makes it easy to turn definitions into a sequence of images, but until now you…

A few days ago I uploaded the first public work-in-progress version of the new Kangaroo (http://www.food4rhino.com/project/kangaroo)

I'm really excited to share this new release - which makes Kangaroo significantly more powerful and flexible.…

Spatially varying fields, which associate a value (such as a number or a vector) to every point in space, have a wide range of applications.

I wanted a simple way of defining such a field in a Grasshopper script component as an…

A minor update to the remeshing component (read about the earlier release here)

This adds the option to also scale the triangle size by distance from the boundaries:

download this new version here:…

I've updated the examples page for Kangaroo with a zip of over 80 definitions, organized by category, many with explanatory annotations, and covering several popular topics:

http://www.grasshopper3d.com/group/kangaroo/page/example-files

Hopefully this saves people some searching around, and makes learning to use it a little easier.

This will be incorporated into future releases of Kangaroo, but because it is so much fun to play with (not to mention useful!), I was excited to share this as a standalone component right now.

This is a tool for remeshing, as I first wrote about and demonstrated…

Lots of new features added. Read more about it here:

http://www.grasshopper3d.com/group/kangaroo/forum/topics/kangaroo-0-095-released

Inspired by a question about cams the other week, I've made a simple tool which can be used for simulating a range of different types of…

To complement the recent Exoskeleton wireframe thickening tool by David Stasiuk and myself,

I am also sharing this component for cleaning up messy wireframes or line networks.

You provide it with any list of lines and it turns them into a clean directed graph or network.

So it :

-Snaps together nearby…

A collaborative effort by David Stasiuk and Daniel Piker, Exoskeleton brings simple wireframe thickening to Grasshopper. You input a network of lines, and it turns them into a solid

(without the heavy calculation of a Boolean intersection of many pipes and spheres).…

I've just posted a new article about something I've been working on recently:

http://spacesymmetrystructure.wordpress.com/2012/09/20/meshmash/

I'm quite excited about this step forward, as I think dynamically changing topology is going to open up a lot more possibilities for interesting ways of using relaxation/optimization.…

Around 3 years ago I wrote an essay on my blog about what I called rheotomic surfaces - a type of surface I had developed related to fluid flow and electrostatics, and a technique for their generation using complex numbers.

Since then I have received a lot…

Hi all,

I'm putting this up for anyone who wants to test it out before I make it the main release on the Food4Rhino site. Let me know if it works and if not what errors you get.

This contains a fix for the Mesh Collision component, and also a new sort of Anchor where you can toggle separate booleans for constraint in x, y or z of a point.

(Also note that like the AnchorSpring component this connects to the ForceObjects input of the main Kangaroo component rather…

There's a new version of Kangaroo available :

http://www.food4rhino.com/project/kangaroo

It contains numerous new additions, described in more detail here:

http://www.grasshopper3d.com/group/kangaroo/forum/topics/new-release-and-examples

Also - a while ago I taught a workshop using Kangaroo at Aarhus…

A little test of metaballs / implicit surfaces in Kangaroo.

Because this is force based it is possible to generate a nicely structured mesh instead of the messy triangles from marching cubes (it's also fairly quick)

I plan to upload the new Kangaroo with this feature (and several other additions) in the next few…

Version 0.066 of Kangaroo is now available:

http://www.food4rhino.com/project/kangaroo

This should now be compatible with Grasshopper 0.8.0051

One of the new additions is the hinge force, which allows you to control the angle between any pair of connected triangles (The angle is measured in the plane normal to their common edge, so you can control the direction)

If the rest angle…

Kangaroo 0.06 is now available from the food4rhino site

http://www.food4rhino.com/project/kangaroo

Many new features and bug fixes are included - Wind, Alignment, Shear, Anchorsprings, Planarize Ngons, Trails, Planarity measurement, Vortex, Constrain to…

https://groups.google.com/group/kangaroophysics/web/download

Many new features and improvements (including a manual).

Includes demos for inflation, wool threads bundling, self-organization, mesh planarization and…