added makeDots, with motion gradients; need to handle dots moving out of frame using 'deform'
added makeDots, with motion gradients; need to handle dots moving out of frame using 'deform'

UCI-CARL/CARLsim4,UCI-CARL/CARLsim4,UCI-CARL/CARLsim4,UCI-CARL/CARLsim4,UCI-CARL/CARLsim4,UCI-CARL/CARLsim4