Is there a way to make straight hair look wavy or curly?

WillowRaven

Is there a way to make straight hair look wavy or curly?

I want this updo with a less-straight look: https://www.daz3d.com/dforce-side-swept-updo-hair-for-genesis-3-and-8-females

Richard Haseltine

If the hair had UV maps along its length dispalcement (repeated black-to-white-to-black gradients) might work for gentle waves, though it would probably look a bit odd on many models.