• Adobe After Effects Expressions

  cloning the movement of a parented 3D camera

  Posted by Barend Onneweer on June 20, 2012 at 10:03 pm

  Hi,

  I’m trying to link a camera in a separate comp to the main camera. The main camera is parented to a null, but I’d like to avoid doing the same for the clone camera. So for the position I’m using:

  L = comp("compB").layer("Rigged Camera"); L.to_world([0,0,0]);

  But for orientation/rotation it’s a bit more complicated. I found Dan’s example of:

  L = comp("compB").layer("Rigged Camera");
u = L.toWorldVec([1,0]);
radiansToDegrees(Math.atan2(u[1],u[0]))

  But I can’t seem to get it to work properly… I probably need to separate the 3 directions in the array but the syntax is beyond me… As is the math…

  So thanks again for any pointers :-).

  Raamw3rk – independent colourist and visual effects artist

  Barend Onneweer replied 13 years, 11 months ago 1 Member · 1 Reply
• 1 Reply

• 

  Barend Onneweer

  June 20, 2012 at 10:23 pm

  Hah… the third attempt at Googling brought the solution:

  https://aenhancers.com/viewtopic.php?f=9&t=653&start=30

  (also thanks to Dan!).

  Raamw3rk – independent colourist and visual effects artist

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