by the way you should change title of thread and script to something more meaningfull
don’t know something like multipipe or pipegroup ect…
at least it would easier to find then volumetric !
happy 2.5
Oops, I’m sorry, I missed your post! I’ll look into it as soon as I can!
PS: What in the world is multipipe? 
I could say 4D function plotter, that’s similar to my Youtube vid. names…
Well, I ran it with no modifications in a current build, just pasted it into a text editor of a new file, and didn’t see that error. The return t line? Are you using a (fairly) current build? And did you try grabbing the .blend file I posted and running it from there?
sorry obviously this pipe thing does not go into this trhead
must have been drinking too much Pepsi lately !
i did try t run the latest with the 2 part script together but had a problem with an error
hope this was corrected !
keep up the good work
happy 2.5