The previous article is here. ushiostarfish.hatenablog.com 日本語でも良い方はこちらを ( If you like Japanese, please check this ) ushiostarfish.hatenablog.com Shading Model Like the following figure, this paper makes shading model from warp and weft that is orthogonal. ※Fig. 2 IMAN SADEGHI, OLEG BI…