algorithmic modeling for Rhino

Dimitrie Stefanescu @idid
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The Bartlett School of Architecture, UCL
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Beta.Speckle - Open Beta / Online Parametric Model Explorer

Open Beta

Beta.Speckle is now in open beta. Feel free to join!

Beta.Speckle is an online parametric model viewer. It enables sharing with your clients/stakeholders/community flexible designs, not just static artefacts. It works by exporting your "solution" and…


Posted on February 18, 2016 at 4:02am — 1 Comment

Speckle Report: all sliders are online. Parameters normal.

See a seasonal parametric model exported from grasshopper, all dressed up with some fancy glow stuff that's there just for the fun:…


Posted on December 17, 2015 at 1:45pm — 1 Comment - Nifty, easy peasy online grasshopper-generated snippet viewer - in amazing 3D!

Hey all! 

Speckle is an easy way to share 3D grasshopper-generated snippets (as long as they can be converted to a mesh, hehe). 

It's really easy to use (you plugin meshes in a component, you double click it - now wait a few seconds, depending on the size & internet connection speed - and you get a sharable link): …


Posted on October 20, 2015 at 11:49am — 9 Comments

[GH] SuperConnect


A nifty little tool for creating connectors between pretty much any kind of planar surfaces which intersect themselves at the edges. 


What it basically does is to output in a ordered structure the intersecting faces (as tree branches) and their intersection line. From there on you can continue to build up your own connectors…


Posted on June 16, 2011 at 10:04am — 2 Comments

3D Voronoi for Grasshopper Update


Some time ago, Han Feng of Hyperbody [ /] did a really great job and modified the old 3d voronoi grasshopper definition and made it much more sleek and streamlined. In all good faith, here it is: …


Posted on June 2, 2011 at 2:17am

Comment Wall (11 comments)

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At 7:37pm on December 15, 2011, marziah zad said…

hi dimitrie

I am working on a project right now in which i am trying to achieve architectural 'space' through information points. i have all the points and i am really excited (and pressed for time) to see how your 3d voronoi definition can work with this. i was fiddling with the older definition you had, and everything works, but there is an error for the output from the 'planar' component. everything before that works fine. why can this error be? also, because i couldn't get that to work, i tried the new definition you created, but this one seems much more complicated and the ghull component (and everything else) is red. the runtime error is that it can't find the specified file. even after the referenced assemblies is updated.

please help me, i am really interested in what i can do with this. at this point i am just checking out the definitions so i don't have another definition that might be creating problems. 

At 8:37am on January 21, 2011, Thanasis Korras said…

Hi Dimitrie,

I am trying to figure out your 3D Voronoi definition that works with qhull but with no lack. It gives me this error:


"error: the requested operation requires elevation (line: 0)"


Do you happen to know what could fix that? Thank you very much.

At 7:38am on December 19, 2010, jayant khanuja said…

hi . m trying to use ur qhull definition, m still not able to figure it out. just had a query that i m running a system of 64 bits with windows 7. Is it because of this reason?. m not sure if qhull is working on this system

At 1:12pm on June 4, 2009, jon kontuly said…
Sounds good. I'll see what I can do. Might be slow going as I have a big work deadline at the end of July...far away but its a lot of work. Anyway I will slowly chip away at it. Using your qhull code I should be able to figure out the general method for starting a process stdout and the grasshopper vb(or c#) side. So I guess the problem is really figuring out the cgal side. Talk to you soon and thanks again. it would be cool to get this to work. I really like the idea of extending grasshopper with qhul, cgal, mathematica...
At 12:49pm on June 4, 2009, jon kontuly said…
Unfortunately my knowledge of c++ is zero but I will talk to some people and see what they know. I know that the zaha guys at have used the cgal library in connection with maya so maybe i'll email them and see what they have to say. I'll get back to you when I get more info. thanks for the help.
At 7:02am on June 4, 2009, jon kontuly said…
Thanks for getting back to me. I will have to look at it more closely.last night after looking at it i thought that it wouldn't be possible because it seemed to be just a collection of c++ libraries and not an exe that you could call like qhull. Anyway thanks and I'll get back to you if I make any progress.
At 4:23pm on June 3, 2009, jon kontuly said…
Your qhull work is super impressive. I had no idea that you start external processes in grasshopper. I know a little vb and I am trying to make my way through your c# code. But do you know any reason why I couldn't do the same with this program:
I'd hate to spend a couple of weeks deciphering your code and trying to apply it to the CGAL stramline package only to figure out that it can't be done.
Thanks for the inspiration.
At 12:34am on May 22, 2009, Natalia Fentisova said…
Thank you! Would be great. Just I'm not student of TU university, I'm studing arts.
At 9:38am on May 21, 2009, Natalia Fentisova said…
Hello, I heard about the Rule Based Design Workshop and tried to send email to TU, without answer. any chance still to participate in workshop?
At 3:14pm on May 18, 2009, Luis Fraguada said…
p.s. wanted to try your vPorn with qhull... for some reason the link to your def does not work... maybe something on my end?





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