https://www.youtube.com/playlist?list=PL71A10A1E329B20AC
http://download.autodesk.com/global/docs/motionbuilder2014/ja_jp/index.html?url=files/Character_Extensions.htm,topicNumber=d30e69169
https://www.youtube.com/playlist?list=PL71A10A1E329B20AC
http://download.autodesk.com/global/docs/motionbuilder2014/ja_jp/index.html?url=files/Character_Extensions.htm,topicNumber=d30e69169