The products are all in-class exercises for the first phase of the 2021 live broadcast course. Some products still have room for improvement, establishing thinking lighting, guiding the selling points of products with the main light source, accurate light and shadow arrangement, high-quality material texture and other more thinking modes, plus more case practice. Key words: light source focus, conciseness, contrast, texture rendering software KS, the following artwork is an in-class exercise case.