• Adobe After Effects

  Adjusting a frame of Rotoscope

  Posted by Gully Moore on October 2, 2011 at 7:20 pm

  Hi,

  I’ve been using the Rotobrush in CS5 which I have found fantastic!

  I did 10 seconds of footage using 1 “span” but now I’ve finished it I need to go back and just tweak a couple of the frames, but when I do it starts analyzing all the frames from the start again. How can I just tweak individual frames?

  Thanks,

  Danielle Clement replied 14 years, 6 months ago 3 Members · 2 Replies
• 2 Replies

• 

  Angelo Lorenzo

  October 2, 2011 at 9:55 pm

  How much needs to be tweaked?

  I do this when using the rotobrush:
  1. I let the rotobrush run with adjustments as I go using the rotobrush tool.
  2. I freeze the rotobrush tool.
  3. I turn on quickmask (the default is a red overlay displaying the mask).
  4. I use the normal brush tool set to alpha only and per-frame and using black and white (black for mask, white to reveal) I paint my adjustments on frames that need them.
  5. On the rotobrush effect layer, I turn down all mask refinement settings to off or zero.
  6. I add the “refine mask” effect on the layer and adjust as needed. This way it refines the mask that is comprised of the rotobrush and my manual adjustments; it helps get rid of per-frame jutter from manual adjustments.

  I hope that make sense for you.

  – Angelo Lorenzo
  – https://FilmsFor.Us Sell your film and connect with your audience
• 

  Danielle Clement

  November 12, 2011 at 6:03 pm

  I’m having issues with rotobrush propagating only part of the 15 second clip, it keeps stopping at 8 seconds and it ignores the rest. How do i get it to recognize the rest of the clip?

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