Anatomical variation is a surprisingly ignored consideration for face tracking/facial mocap in tech and entertainment. Simplified anatomy diagrams are often accepted as universally applicable to all faces and few further questions are asked. The reality is: FACIAL MUSCLES ARE HIGHLY VARIABLE.
Currently learning chimpanzee FACS, chimpanzee anatomy, and making custom chimpanzee landmark diagrams. (Chimpanzee landmarks determined by Animal FACS group. Original research work by Lisa A Parr, Bridget M Waller, and Jennifer Fugate. See: Emotional communication in primates: implications for neurobiology )
This post is Part II of a series on wrinkles types. Part I focused on wrinkle caused by repeated facial expressions – dynamic wrinkles. Part II will focus on another class of wrinkles: static wrinkles. While static wrinkles may not as exciting as dynamic expressions wrinkles, they are just as important to consider when applying to your character. As stressed in Part I, every line tells a story.