Hi,
I’m currently simulating some long curly hair, and I’m finding tricky to have the hair bend enough but keeping the curls. As the only parameter I found to keep the curl was the bend constraint.
What would be a good approach for this?
I was looking for example at the Pixar paper for Brave, and I wonder if someone has implemented it as a vellum constraint, maybe a similar constraint to the “extra bend links” in nHair. Probably I’ll try that if there is no easier solution.
Thanks!

Yes I think this requires some extra constraints, basically something between the curls within a hair, to keep those together.

I think pure curls set up purely as individual vellum curves will always unravel.

Have you seen these Houdini resources:

https://www.sidefx.com/contentlibrary/hair-swatches/ [www.sidefx.com]



and these tutorials might also inspire:

Volumetric Methods for Simulation and Rendering of Hair [graphics.pixar.com]