4 Replies Latest reply on Jan 8, 2015 11:33 AM by Todd_Kopriva

    How to change the timing of a mask


      So Im working on a commercial for a contest (im in high school) and I need to cut out a green screen but key light wont work cus the green screem, simply put, is crap. So iwant to go in frame by frame and cut out each area with a mask. (using pen tool/Subtract) But i have no clue how to change how long the mask stays cut the way it is now the mask stays there foreve and cuts out area's I dont want cut out... how do I have the mask last for just a single frame?