====== Lens Studio Combo ======

  * lens studio: pc app to make 3d filter for snapchat
    * https://ar.snap.com/lens-studio
  * snapchat: mobile app for chatting
  * snap camera: use lens studio filter for pc web cam.
    * https://snapcamera.snapchat.com/

====== Workflow ======

  * create project,
  * outliner > add Mesh > face image