Let’s take a look at Merinda’s “The Brave” hair work, unlike straight hair, curls need more volume to show curves and creating volume on a computer isn’t easy.
The simulation is based on physics; Gravity and other laws affecting bodies must be understood. At the start of the project they couldn’t understand why curly hair moves that way, so they worked with a large Pixar research team to build a physical model just for Merida’s hair. ”
Character Design and Creation: Disney Pixar’s Merida in The Brave – Cloth, Hair, Animation.