I’m encountering an issue with Pachyderm. I’ve already set up my geometry and the polygon scene appears to be ready. However, when I go into Rhino and search for _PachyDerm_Acoustic, a window pops up saying that the “Pachyderm Hybrid Model is empty.”
How can I resolve this?
Thank you! @Arthur
Hi Edoardo -
When asking questions about Pachyderm, make sure to hail @Arthur.
-wim
Thank you @wim,
Are you using a version of Pachyderm that you installed using an installer file in Rhino 8? If so, it does not work in Rhino 8.
In that case, you need to uninstall that version of Pachyderm, and find Pachyderm in the Rhino 8 Package Manager. You will need to make sure you are using at least Rhino 8 SR16 to find it.
Let me know if this solves your issue.
Arthur
Hello Arthur,
Although I had previously installed Pachyderm using the Package Manager, I encountered the same issue as Edoardo. I uninstalled and reinstalled it in Rhino 8 via the Package Manager again.
The original error is now gone, but unfortunately, my models are causing Rhino 8 to crash. I tested with some simple models that used to run smoothly before the recent updates, but Rhino 8 still crashes.
Best regards,
Ahmad
Hi Ahmad,
It’s hard to know what’s wrong here. Sometimes there are permissions issues that prevent the package manager from updating or installing correctly.
On the other hand, your model crashing Pachyderm could be an issue to do with your model having degenerate surfaces.
Would you like to send me your model? We offer model review.
Arthur
Hello!
I’m having similar issues here, I just downloaded the pachyderm package from Rhino 8 package manager and try to make the simulation for a small rectangular box. The ray tracing simulation took 5 minutes for 2000 rays wich is a bit slow considering I have a nice computer, but when it ends and I click on the Analysis window Rhino crashes. I have tried a lot of times and it crashes all the time.
Does anyone know how to repair that?
Hi Vicente,
Remember to put @Arthur in your message somewhere, so I can see it.
So 2000 rays was the number of rays you started with. In the end, it did millions of rays. When it recounts the number of rays it traced at the end, the second number is the true number of rays. When you see that number, it probably doesn’t look that slow anymore. Second, if you are concerned about time, you should enable convergence. That will ensure you don’t do any more or less than you need to. Finally, be aware that the system is optimized to do what is needed to get the right answer. It will split the rays more finely, and run them much longer if you have low scattering, and low absorption. This is because those conditions are far more demanding for accuracy. Hopefully this helps you with your expectations. I have made professional models that finished instantly, and have had models that took 6 hours on fast hardware.
I’m not sure what could be causing the crashing. Nothing like that happens on any of my machines. Are you using the latest version of Rhino - and subsequently, 2.6.0.30 of Pachyderm?
Arthur