Amazing work, thanks for sharing!

Yep, definitively cool.

Hey David

Really Cool work! And thanks for the credit.

I also have been thinking about the 'taper' but i haven't spent much time on it. haven't got much further than globally affecting the field values.

Cool, thanks David!

definitely the fastest and cleanest marching cube implementation so far here on the gh community

also nice approach to script the genepool..

one suggestion for further development would be to able to have also negative values for the radii - these points /curves could act like a kind of voids which are pushing away the isosrf with variable strength. I have no idea how complicated it would be to achieve with the marching cube or if its possible but I think this could lead to quite interesting forms..

anyway great work and thank you for sharing!

Thanks Christian...interesting idea on the negative points/curves. Intuitively, it seems like it could work...they would just adjust the iso value in the other direction. There may be some funny stuff with the threshold, but I'll try to look into it. I'm hoping sometime over the next weeks to package it as a GHA along with an Exoskeleton reboot, but we'll see.

Glad you saw the genepool bit in there :)

Amazing! What a beautiful program!

Thank you for sharing.

Hello David, great to hear that you will look into..

I think that it could lead to interesting forms especially because the algorithm is capable to handle a quite big amount of points. I imagine things like impressioning forms to others or even define a kind of boundaries which could limit the isosurf locally.

I hope it will happen with the gha - both really great tools!

really nice - thanks for sharing....

Sweet!

wicked!

Awesome work David! Love it. And thank you for sharing it.

good work

Hey David,

very cool stuffs. I am trying to get similar "sponge like" effects somehow through a python script based in your 140130 (VB script) marching cubes definition. I wonder if you could roughly explain the logic behind that code..actually I´m getting a bit lost.. I´d really appreciate it. Thank you.

Amazing work! Thanks for sharing. 

Hi David, at first, thanks a lot for this great piece of code. I was used to work with the millipede geom wrapper, but I cant explain how much faster your script is.

Now I think I am pushing this script to its limits, but maybe not - I am really not sure, so I would appreciate your help.

I am using your definition for getting geometry out of curves - these curves are resulting out of tracked boid's. I attached a pic from my succeeded wrap - there are about 700 curves and it took itself about 18 minutes computing time. I think that is very okay. So I thought, no problem for this definition, let's do it with 2000 curves (because at least, I have to do it with 4000 curves). But at this point, there is something it does not like, and I don't get it because at this time I'am not really into vb scripting.

I tried to tweak it from the outside, with scaling, brep r and all this things, but show's most of the time a problem in the line 255, or line 172.

Sorry for this big question, maybe you got some hints for me :) thanks!

problem here... the VB-component for the Vase seems to not output any data for (mc) that goes into the weaverbird component... panel says <null> ...since everybody here loves the definition i assume you all found the solution? : ) please let me know

wow can u send to me solution or GH file :) thx

Mannnnn This is Awesome!

Hi,

your work is wonderful! Thanks a lot.
I take your work for excercise...and I want to obtain a single value for RADIUS (example: 2mm, 3mm, 4mm, 5mm, ecc....) Is it possible?
Thanks
L

I cant run the first definition "...30..."

Downloading the latest Kangaroo (can't find 0.94) doesnt solve the problem. I get this error message and screen.

Object: MeshMachineComponent3 (level 1)
{
Ein Aufrufziel hat einen Ausnahmefehler verursacht.
TargetInvocationException
}

Object: MeshMachineComponent3 (level 2)
{
Die Datei oder Assembly "Plankton, Version=0.3.0.0, Culture=neutral, PublicKeyToken=null" oder eine Abhängigkeit davon wurde nicht gefunden. Das System kann die angegebene Datei nicht finden.
FileNotFoundException
}

Object: KangarooA (level 1)
{
Ein Aufrufziel hat einen Ausnahmefehler verursacht.
TargetInvocationException
}

Object: KangarooA (level 2)
{
Die Datei oder Assembly "KangarooLib, Version=0.0.9.9, Culture=neutral, PublicKeyToken=null" oder eine Abhängigkeit davon wurde nicht gefunden. Das System kann die angegebene Datei nicht finden.
FileNotFoundException
}

Object: KangarooZombie (level 1)
{
Ein Aufrufziel hat einen Ausnahmefehler verursacht.
TargetInvocationException
}

Object: KangarooZombie (level 2)
{
Die Datei oder Assembly "KangarooLib, Version=0.0.9.9, Culture=neutral, PublicKeyToken=null" oder eine Abhängigkeit davon wurde nicht gefunden. Das System kann die angegebene Datei nicht finden.
FileNotFoundException
}

Many thanks,

Oliver

Hi...yes it's an older version by now. It defnitely won't work with Kangaroo version 2+, but it should work with 0.99, which I think is available for download. You'll also need Nudibranch. But I also included the base geometry input of curves and breps internalized so that you don't need to do any initial form-find to see the marching cubes output for this particular input. What are you looking to do with the script?

Hi David,

I uninstalled Kangaroo 2 before I posted. Your scripts works fine. I already got some nice results. 

My main opbjective is to create a fibrous structure based on agent-behaviour design regarding stresslines and strand thickning through load values. I posted earlier about it http://www.grasshopper3d.com/forum/topics/extract-fem-volumetric-po...

Btw, might their be another way to solve the uneven srf than cranking up the res and smooth values? I'm already using mesh subdivision and smooth with weaverbird. It's lots of geometry, I know, and it will get much more, but I was wondering if I could improve something. Can't find an attach button for the file here...

Hi Oliver...this is one of those things that I really wish I had more time to update...the smooth that I built into the script in is a very basic Laplacian operation, and the topology that results from the MC algorithm isn't well suited to being nicely smoothed from this. What I really should do is one final pass post-Laplacian smooth that reevaluates each vertex in the iso-field and relocates it. This should produce a much smoother result, especially after a WB loop sub-D pass.

Daniel Piker started up a very interesting approaching using a small library he built called Æther that may be worth looking at. Unfortunately, I am just in the middle of a lot of things, so won't have time to code up these (and other) desired changes for improving this MC implementation, probably for a few months yet.

Hi David, 

Your Job is awesome. but I am not clear how "iso" this parameter influence the final result. As I tried to increase the number then I found these spheres getting smaller.Can you explain a little bit on how does it work?? Thanks 

Thank you Nik, I know the marching cube algorithm but what is the relationship between marching cube and iso value??

Hi Nik, "it samples the eight corners of each sample cube in a big XYZ grid around your object for the overall field value at each of those eight points" here, is the sample cube similar to the bounding box?  "by summing the contribution of all geometric objects or at least the closest point to each one"  is the geometric objects a cube unit or a object ? I don't understand it clearly. Thanks

Thanks for your patients Nik, I tried to figure out all these terminology . so "iso" just means one certain surface because within one 3D field, there is a lot of surfaces where all the value at this surface are the same. just like the electric field, at different distance from the center charge there is always a Gaussian Surface where the field strength is the same. so the value only means which surface to choose. am I right?

Thanks for your help Nik, I learned a lot from your post. 

 thanks for sharing!

GOOD JOB!

thanks for sharing!

Woooo, "fingery" looks spooky, thanks.

Hi David is this a topic relevant to the query below;

http://www.grasshopper3d.com/forum/topics/help-with-a-modelling-con...

Hi guys!

Maybe you can help me. Im trying to test marching cubes on mac. Unfortunately the VB script doesn't work. Do you think it's because grasshopper for mac is still not finished.

You may want to try the plug-in Cocoon.

Hey David, I'm trying to get a result similar to your erosion effect above, but Marching Cubes seems to no longer be working (OUTPUT PARAMETER CHUNK IS MISSING; ARCHIVE IS CORRUPT) and I'm unable to get the same effect using Cocoon.  Any suggestions?

Works like a champ! You can make the definition more efficient by reducing the gene pools a lot.

We managed to make a rock generator. Thanks!