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Activity › Forums › Adobe After Effects › Mask not aligning with path

  • Mask not aligning with path

    Posted by Conal Clapper on August 22, 2013 at 11:45 pm

    1) I used rotobrush to rotoscope a short section of a video clip.
    2) I used Auto-trace to convert this rotoscope into a mask.
    3) When I paste the mask to my new layer the mask does not match up with the path, as in the picture below.

    This is probably a mistake on my part, but I would like to get it fixed either way.

    Thanks in advance.

    Conal Clapper replied 13 years, 1 month ago 2 Members · 2 Replies
  • 2 Replies
  • Roland R. kahlenberg

    August 25, 2013 at 8:04 pm

    Ensure that ALL layers have identical pixel dimensions and pixel aspect ratio.

    HTH
    RoRK

    Intensive mocha & AE Training in Singapore and Other Dangerous Locations

    Imagineer Systems (mocha) Certified Instructor
    & Adobe After Effects CS6 ACE/ACI

  • Conal Clapper

    September 1, 2013 at 8:13 pm

    The two layers are exact replicates of each other.

    I just discovered that if I view the layer on its own with the mask the alignment works, but if I view it as part of the composition the mask is off.

    I could fix it by adjusting each mask frame by frame but I feel there should be a way to correct the alignment for the mask as a whole.

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