• Adobe After Effects Expressions

  how to eliminate z camera orientation only

  Posted by David Dubois on December 19, 2008 at 12:07 pm

  Hi all,

  I’m finding this a little complicated, so I’ll try to simplify.

  I have a comp (lets call it ‘precomp’) that has a square object in it. This square is a 3d layer. Sat above the square is a text layer, which is also a 3d layer.

  Then I have a ‘Master’ comp in-which sits the ‘Precomp’, a camera and a NULL object that controls the camera via parenting.
  The NULL object has lots of movement on it’s position parameters and also a lot of movement on all three of the orientation parameters.

  The movement (as you would expect)causes both the square and text layers to rotate as per the camera.

  What I need is the text to react to every aspect of the camera’s movement except for the Z orientation parameter. The result would be that the text follows the camera yet always faces the viewer correctly so that it can be read.

  I know that you can cancel out the z orientation with an expression but I cannot seem to get it right (after much searching of forums and websites).

  Can anyone cast any light on the dark place that I am currently standing?

  Many Thanks in advance!

  Dave

  David Dubois replied 17 years, 8 months ago 1 Member · 0 Replies
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