MotionPathPlugin - Plugins - GreenSock https://greensock.com/motionpath/
Illustratorでパスの始点・終点を反転する方法|DTP Transit 別館|note https://note.com/dtp_tranist/n/na9b229153d55
ScrollMagic Class: Scene https://scrollmagic.io/docs/ScrollMagic.Scene.html#event:progress