Harold Wang

tamte
Looks like you answered your question

From the screenshots it looks like the file was created in 19.0.498
So you should update your build first

Thank you, I did not notice that.

Hi, I was trying to study this demo file. However, I ran into some problems, as soon as I open the file in Houdini19.0.455. It showed me an error message.


Then I tried to run the muscle vellum solver the console popped up.


This is how the muscle simulation looks like in frame 3.


If anyone has any idea about how why this happened, please let me know.

Thank you in advance.

mkps
What's not working? The first one looks correct, but you could try without the language argument because it will default to hscript anyway.

You can also try your last attempt just using set() instead of setExpression() ie:

dens_newname.parm('frompt0').set('`chs("../custom_density")`')

Thanks for replying.
I end up using set() instead of setExpression(), and it got to work. I didn't really know the reason why setExpression() couldn't work.