Hi Arthur.

First of all, thanks for release me the plugin. I'm trying to install it on rhino 5, but when I drag the .rhp file it shows me this message:

Error
Access to 'C:\Program Files\For Rhinoceros\Pach_Setting.pset' denied. Impossible load plug-in 'C:\Program FIles\For Rhinoceros\Pachyderm_Acoustic.rhp' 

What is the problem? Instead, the plug-in for GH works. Is it a problem if I use Pachyderm v.1 (which works) on Rhino and the v.2 on GH?

Hi Antonio,

I didn't find the .pset file but moving the "For Rhinoceros" folder on the Desktop it works. Thanks.

Hi,

I'm starting to learn the plug-in, but before going on, I would ask you if it'll be useful for my project: I'm using acoustic analysis to recover the Rotterdam Stadium, changing it in a multifuncional building. I need to create a model of the stadium in GH to simulate the acoustics for different functions (as concerts, motor ride...), so I could use the results to improve the design and optimize the structure for all of these activities.

By the way, the literature about the acoustics of opened sport facilities is insufficient and I don't know if Pachyderm could help me in this research. Do you know if it works in a building with that dimensions?

Thanks,
Antonio 

Hi Antonio,

For large spaces like that, Ray-tracing programs like that in Pachyderm are the only practical way to simulate sound. Yes it will work, but you will probably need a very large number of rays to adequately sample the space. What amount of volume are we talking about?

Arthur

The total volume of the stadium is very huge, around 1,5 million mq. 
It will be minor than that, because I guess I'llconcentrate on the bleachers and the field, but it remains an high value.

Hi,

Try with 200,000 rays, and please post a screenshot of your impulse response. (You will find this on the third tab of the Hybrid method interface).

Hi Arthur,

I'm sorry, I'm trying to set the model but I probably do something wrong. I saw that I need a source and at least one receiver for the simulation, but I don't know how to proceed. 

First of all, I have a simplified model of the stadium, and obviously it's an opened structure (you can see a part of it in the image below). To  the plug-in works, I need to create a kind of closed box around the structure?

Then, if it's possible, could you send me an example of a model where I can see how it works?

I'm really sorry but I'm completely new in this kind of software and analysis, and nobody in the department knows how to use this plug-in. Thanks for the patiance and the availability.

Hi Antonio,

You do not need a closed box around the structure, though you will probably need a very high number of rays to get a good result from the model.

It might make sense for you to use the Rhinoceros interrface before you use the Grasshopper interface. (type Pachyderm_Acoustic in the command prompt to get started. Follow the instructions on the Pachyderm website)

There is an example in the Pachyderm RC12 archive:

https://dl.dropboxusercontent.com/u/21521713/Pachyderm2.0.0.1%20RC1...

Again, the Rhino and Grasshopper plugins talk to eachother, so you should have them both loaded, and you should have the Rhino model open before opening the grasshopper model.

--Arthhur