After Effects CS3 | Go to CS4 Help

Example: Flip layer horizontally if facing away from camera

Apply the following expression to a 3D layer’s Scale property:

  if (toCompVec([0, 0, 1])[2] > 0 ) value else [-value[0], value[1], value[2]]

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After Effects CS3 | Go to CS4 Help

Example: Flip layer horizontally if facing away from camera

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