Wrinkles in Houdini

Wrinkles

add some subdivided object add bend node and bend the object (alternativly use the mountain node) add wrinkle deformer node feed bend in 1st and original object into 2nd input

src

https://www.youtube.com/watch?v=MBANNgla5W8 https://www.youtube.com/watch?v=k7-5PaOccYc https://www.youtube.com/watch?v=RxLtsE6RhGw https://www.youtube.com/watch?v=fGVyXfdDBkI