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Activity Forums Adobe After Effects Tracking an object in mocha that moves behind static objects?

  • Tracking an object in mocha that moves behind static objects?

    Posted by Bobby Yarsulik on January 8, 2014 at 10:17 pm

    I tried a little searching and didn’t really see what I was looking for.

    I have pretty much mastered the basics to mocha and can create some really cool tracking scenes.

    The one issue I have though, is lets say I’m tracking a fake sign that I have marked for tracking purposes, and it moves behind a post or pole or something. It’s a split second or so, but the track gets all wonky (of course.)

    Is there a way to mask the foreground object out so when I track the layer doesn’t get screwed up? Or at least, what is my best possible solution?

    Bobby Yarsulik replied 12 years, 4 months ago 2 Members · 2 Replies
  • 2 Replies
  • Roland R. kahlenberg

    January 9, 2014 at 1:33 am

    mocha’s workflow for tracking an area with foreground occlusion is as follows –

    1) track the foreground object

    2) un-check tracking (gear icon) for the foreground object (otherwise mocha will re-track it again in the next step

    3) ENSURE THAT THE FOREGROUND OBJECT/LAYER IS AT THE VERY TOP OF THE MOCHA LAYER STACK. Then track the background object

    That’s it. You can watch a related tutorial here – https://vimeo.com/8057500

    HTH
    RoRK

    Intensive mocha & AE Training in Singapore and Other Dangerous Locations

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

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  • Bobby Yarsulik

    January 9, 2014 at 3:42 pm

    That was amazingly and miraculously simple! Thank you so much for the reply.

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