I am using After Effects 5.5 and am trying to rotoscope 34 seconds of footage at 24 fps. After I do about 7 seconds the previous frames change and I lose vast sections of previous frames that are now not enclosed.
My workflow is to open the document/load the video/drop into new composition/select brush and start rotoscoping.
I thought once you completed a frame it would stay as you went forward in the video. I know you have to freeze frames but after doing that the previous frames are all off.
I guess the technique is good for about 4 or 5 seconds only, nothing larger. Thanks for your thoughts.
If you're trying to use Rotobrush intuitively, you're making a VERY bad move. Plan and simple, you can't use Rotobrush by just clicking on a couple of buttons and hoping for the best. It isn't at all intuitive.
Go to AE help, look for the rotoscoping resources, and find Rotobrush. Read up on it and run the tutorials so you understand how it works.
KGAN (CBS) & KFXA (Fox) Cedar Rapids, IA