Dlib FaceLandmark Detector is required to run example code of this repository. https://assetstore.unity.com/packages/tools/integration/dlib-facelandmark-detector-64314
ReadMe.pdf
https://enoxsoftware.github.io/DlibFaceLandmarkDetector/doc/html/annotated.html
https://enoxsoftware.com/dlibfacelandmarkdetector/