Author: li_anqi, model lookang
More information at: http://weelookang.blogspot.sg/2015/05/tracker-tennis-ball-re-bounce-force-and.html
Tracker Experiment
Author: li_anqi, model lookang
More information at: http://weelookang.blogspot.sg/2015/05/tracker-tennis-ball-re-bounce-force-and.html