• Adobe After Effects Expressions

  3d Stroke and Expressions

  Posted by Dan Lachevre on August 13, 2008 at 9:10 pm

  We have a confusing problem trying to precisely position the ends of a 3d Stroke.

  Overview:
  We have a 3d scene featuring a girl holding a bunch of lightbulbs attached to cables. The lightbulbs float in the air above her in a cluster and behave like balloons. The Lightbulbs and the girl are shot on a turntable on green screen and rotate. We have these oriented to camera and everything looks convincing as the camera rotates around her.

  The problem is now we need to attached cables from the bulbs to the girl’s hand and have decided to use 3d stoke which can’t be parented to the 2d bulb layer.

  Is there anyway to link one end of the stroke to the 2d bulbs and the other end to the 2d girl? The x and y are linked but is there is a way to override with scripting.

  We would also like the bulbs to ebb and bob in the air like balloons so it would be great if there was a way of parenting the mask verticees to the 3d position of the bulbs.

  There may be a way via this Post below but I’m not quite sure how it would work:

  Re: attach track to mask
  by yikesmikes on Sep 22, 2007 at 2:58:13 am

  Dan Lachevre replied 17 years, 8 months ago 1 Member · 0 Replies
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