I want to draw a line in a video on the last layer of the video.Like if i hv taken a video of a part of roads with vehicles runningOn it and i need to draw a line on the surface of the road.I am trying and the line which i put in the video.it used to hang inThe air with vehicles going down from under the line which i hv drawn.but i need that the line should be look like as if it attachedTo the roads and vehicle passing over it..which actuallyShould look as real video with line attached to the surfaceOf the road rather than hanging in the airI am very new to adobe.and trying for it and i am in urgent needOf it's solution.thanks in advance.