Hatching

• TAM / Tonal Art Maps

Ref

• SIGGRAPH2001 - Real-Time Hatching
• https://github.com/OskarSigvardsson/tonal-art-map
• https://blog.naver.com/pch413/10001173790
• http://kylehalladay.com/blog/tutorial/2017/02/21/Pencil-Sketch-Effect.html
  • https://github.com/khalladay/PencilSketchEffect