The Study On Three-dimension Human Body's Deformation

Human body deformation is applied to the fields of 3D cartoon, mediacal dignose, move analyse, virtual reality, and so on, which includes whole human body deformation and local human body deformation. This paper researches human body shape (geometric character) and human body muscle (physical character) based on graphics and biology mechanics. Human body is regarded as a combo of rigid object (bone) and flexible object (muscle) and divided into triangle signed by different mark. NFFD is adopted to study human body deformation, and weight control muscle's change of leg's scaling, tapering, twisting and bending. This paper finishes leg's bending cartoon by linear interpolate, and simulates third dimension skin by improved Phong model and triangle surface model. At last, we research facial expression and imitate human's smile.After study on human body deformation, the author's opinions are given about this domain's study and develop.