Im having trouble modeling realistic eyelids for the character I'm working on in polygons. I know one way to do it wich is by creating them out of nurbd spheres and controling them with an attribute, which works but it doesnt look it real unless I was making a cartoon character. Do I model them around a sphere placed inside the eye socket to make them work? How can I achieve the thickness and folds which they normaly have? I've included a jpeg of the smooth character.