Grasshopper

algorithmic modeling for Rhino

Information

Pachyderm Acoustic

Pachyderm is a plugin largely used by Designers and Scientists alike to simulate acoustics in buildings, rooms, cities, and other settings.

Website: http://www.orase.org
Location: Earth
Members: 135
Latest Activity: 8 hours ago

Hello Pachyderm Users,
We are going through an exciting period, including the startup of an organization to support the growth of Pachyderm, and extend the educational agenda of the project. In the next few weeks, we will be submitting our long-form 501(c)3 application, which will give us the rights of a not-for-profit organization established in the state of Connecticut. As part of the transition, we are phasing out the old website. The new site will be up in the next few weeks, and you can find it at:
 
 
We are looking forward to the next phase of this project, and we hope that you will be there with us to learn and continue to support us!
 
kind regards,
 
Arthur van der Harten
Executive Director
Open Research in Acoustical Science and Education
ORASE

Discussion Forum

overly long simulation 1 Reply

Hi!I'm running a simulation with a simple model of a room of about 303 cu. m. (5,6x4,3x12,6), so not very big, but it takes almost 20h per source to complete.At the beginning I thought it was due to…Continue

Started by valentina. Last reply by valentina 8 hours ago.

Calculation speed 3 Replies

My test model takes very long to run: 10*6*4 m box, all plywood surfaces with 25% scattering over all frequencies.To run the ray-tracing calculation with one point source and one receiver, 10000 rays…Continue

Tags: processing, multi-core

Started by Henning. Last reply by Ander Perez yesterday.

material definition from grasshopper defined geometry

Hello Arthur,Fantastic plugin, really enjoying using it as a part of my PhD. I'm predominately using it in grasshopper as I am using multi-objective solvers to perform calculations.couple of…Continue

Started by Peter Booth Apr 28.

Installation issues 44 Replies

This is a place to ask qustions about installation. Please post your questions here and I will get to them as quickly as I can.Continue

Started by Arthur van der Harten. Last reply by Arthur van der Harten Apr 26.

Comment Wall

Comment

You need to be a member of Pachyderm Acoustic to add comments!

Comment by Ander Perez on Monday

Hello,

 

I am trying to do some mapping calculations, but every time I start a calculatoin (Settings: Specific Ray Count, default settings), receiver displacement: Audience) Rhino crushes.

 

I've tried this in Rhino 6 and Rhino 7, but it keeps crushing. Is there something I am missing? Thanks for your help!

Comment by Arthur van der Harten on April 15, 2021 at 9:40pm

Hi Konsta,

I think I need more information. Would you mind emailing me a detailed explanation of the issue you are dealing with?

Info@orase.org

Thanks,

Arthur

Comment by Konsta on February 10, 2021 at 1:01am
Hi everyone!
I have installed Pachyderm on Rhino 6 but it cannot calculate anything. Could be that there is no option to assign a material under materials tab. Any thoughts?
Comment by Behdad on December 15, 2020 at 10:15am
Hello Everyone, I have installed Pachyderm. But when I open the folder of the program in "Program Files", the Rhino Plug-in file does not exist. I have tried to rerun the installation and chose the repair option but it did not solve the problem. Has anyone had this problem before?
Comment by idspaceman on October 1, 2020 at 10:58am

Hi, unfortunately none of the two links to the website work. Both links are broken or lead me to a page with a password protection. 

Comment by Arthur van der Harten on September 4, 2020 at 11:56am

Hi Sebastian,

If your model is very complicated, this may be the reason. Occasionally, Rhino encounters a piece of geometry that can't generate a mesh, and then it fails pachyderm. I've tried to catch some of these cases, but some still elude us.

I can help you troubleshoot the model if you like. Can you send me the file to info@orase.org?

Arthur

Comment by Sebastian Novoa on August 31, 2020 at 10:38pm

Hello Arthur,

I'm trying to do a calculation inside a small chamber music hall (~490sqm). After applying a material to every surface and preparing everything (as told in this tutorial https://vimeo.com/247018860) I click on Calculate Solution and the button grays out and the message "Solution exception:Index was out of range. Must be non-negative and less than the size of the collection. Parameter name: index" appears and I can't try again until restarting Rhino. I know this has happened before but I can't find a solution. I have a fairly complex geometry with reflective panels hanging from the ceiling, I don't know if it may be affecting. Thank you in advance.

Comment by Petros F. on April 15, 2020 at 10:41am

Hi again Arthur,

Thank for replying, my bad indeed that material coefficient was able to assign data just fine as you mentioned.

I am facing a different problem atm,

Trying to use SurfaceSource, every time I assign a surface as a source Pachyderm won't run the calculations (hybrid model>impulse>calculate solution). The same 3D model will run the calculation with the other sources (dodecahedron, speaking person)

I am a) inserting SurfaceSource b) selecting a source surface c) choosing SPL for every 62.5/.../8000Hz, and I do get the dodecahedron speaker icon over the selected surface. When I hit calculate solution nothing is happening no msg in the command line.

Also when I am in Rhino environment Properties (Rhino Properties>Sound Source Control) when selecting the Surface source the octave/SWL/SPL is not present, at the same time if I choose a different source the chart will present.

Thank you in advance

Comment by Arthur van der Harten on December 16, 2019 at 11:54am

Hi Petros,

I just tested both of those systems, and they seem to be working fine (both openings of .pac1 files, and custom absorption coefficients). However, if you have found something I can't reproduce, the best thing you could do is send me the .pac1 file, so that I can look into it.

Regarding the absorption coefficients, try again. I'm very certain that system works fine.

Arthur

Comment by Arthur van der Harten on December 16, 2019 at 11:52am

Hi Surakist,

Sorry for the long wait. I didn't get a notice that you had posted... Happens sometimes.

First off, what pachyderm is doing is very computationally intensive, so unless the window outright disappears, it has not crashed. You should just wait for it to complete what it is doing.

Second, it is likely that you are using very low absorption coefficients. You should reconsider whether those coefficients are the right ones. There are few places on earth that have that much reverberation.

Let me know if you have additonal questions.

Arthur

 

Members (135)

 
 
 

About

Translate

Search

Photos

  • Add Photos
  • View All

© 2021   Created by Scott Davidson.   Powered by

Badges  |  Report an Issue  |  Terms of Service