1. A method for using curves to emulate soft body deformation in computer animation, the method comprising: accessing a reference model mapped to a deformation curve for a computer-generated character, the reference model including a mesh of vertices representing a soft body layer of the character and the deformation curve including a plurality of sample points, wherein each vertex of the model is mapped to each point of the curve; receiving a movement at least one point on the curve; calculating primary movements of the vertices of the model based on the movement of the at least one point on the curve; calculating secondary movements of the vertices of the model based on the movement of the at least one point on the curve; moving the vertices of the model according to the calculated primary and secondary movements; and outputting the model with the moved vertices for rendering to emulate the soft body deformation of the character.