It's not necessary. It is actually a method of fashion design, which is called holistic method: first, it is a design method that starts from the whole and gradually advances to the part, that is, from the whole to the part, and then from the part to the whole, to complete the whole design process. We can grasp the design effect from a macro perspective and pay attention to the relationship between local modeling and local modeling. The overall method can determine the internal structure of clothing according to the style requirements and from the perspective of modeling. You can also determine the overall tone or fabric according to the requirements of the design theme, and then discuss the color configuration and fabric combination of the details in depth.