Abstract: Provided are an apparatus and method for providing the optimized speed and realistic expressions in real time while rendering wrinkled skin during character animation. The wrinkled skin at each expression is rendered using a normal map and a bump map. Generalized wrinkled skin data and weight data are generated by calculating a difference of the normal and bump maps and other normal and bump maps without expressions. Then, the wrinkled skin data of a desirable character is generated using the generalized wrinkle skin data at each expression, and then the normal and bump maps expressing a final wrinkled skin are calculated using the weight at each expression in a current animation time t. Therefore, the wrinkled skin in animation is displayed.