Detangle SOP / Problem with pscale

[Lameflavor]

Hello everyone!

At the moment I'm really struggling to fully understand how the "Detangle" SOP works, it rarely do what I want it to do as soon as I bring a pscale attribute in the mix.

In the test I'm working on, I have two sets of curves with a different pscale each, but as I saw in the documentation, to get the "raw" pscale, I need to use the attributes "overlap_self" and "overlap_external". When I change the value of these overlap attributes, it does change the result, but I never seem to get something fitting my pscale perfectly and that would remove all interpenetrations. What is the proper workflow when having a varying pscale and using the "Detangle" SOP?

test_detangle.hiplc

[Librarian]

@Lameflavor Just curios What its final effect? it gonna be animated or just  1 Frame PIC  .. Also detangle make something like This or ?


 

[Lameflavor]

@Librarian This is really a test to fully understand the how pscale react with the Detangle SOP, so it could be 1 frame with no interpenetrating curves, and from this point I could even go further and calculate a Vellum simulation if I want to animate it.

It's interesting because in your GIF there is clearly no interpenetration between the cables, did you have to play with different attributes to get this result?

As you can see in my test scene the two sets of cable don't react much to each other, and when I remove the custom attributes "overlap_self" and "overlap_external", it completely explodes. I'm just pretty lost...
 

[Librarian]

Here I use Detangle Solver From Iiro Kivistö Dneg TD Groom And Hair ...Therefor I'm interested in How Detangle SOP Works. I have Only 1 ex on How this work , just curios