There are many types of hair—long, short, straight, curly—and today’s computer animators have a good handle on many of them. But one type, highly coiled hair, continues to vex animators. With help from a mathematical tool borrowed from the cosmetics industry, Professor Theodore Kim and doctoral student Alvin Shi are changing that. They presented their results at the SIGGRAPH North America conference.There are many types of hair—long, short, straight, curly—and today’s computer animators have a good handle on many of them. But one type, highly coiled hair, continues to vex animators. With help from a mathematical tool borrowed from the cosmetics industry, Professor Theodore Kim and doctoral student Alvin Shi are changing that. They presented their results at the SIGGRAPH North America conference.[#item_full_content]