Boris FX Boris Calligraphy Version 2.0 - Manual (Page 55)

Boris Calligraphy 55
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If you rotate your backdrop using the Tumble, Spin or Rotate parameters, PreRotate
Position Z positions the backdrop ignoring any of these transformations and uses the
original coordinates of the plane. This parameter can show a different result than adjusting
the Position Z parameter which positions the backdrop after any rotations are applied.
It is useful to remember that the pivot point remains at the actual X, Y, or Z position
even when you change the PreRotate parameters. For example if you alter a
PreRotate parameter and then spin the backdrop, the backdrop will spin around
the pivot point at its original position and not the PreRotated position.
In the example below the words “Vector Text” are rotated by using the Spin and Tumble
parameters. The lighter arrows show the positioning of the text using the PreRotate Position
X and Y parameters. The darker arrows show the positioning of the text with the Position
X, Y and Z parameters. (Position Z would point directly at you).
When the Lock Pivot to Position checkbox is selected, the text tumbles, spins, and rotates
around its own center. If this option is deselected, you can set an external pivot point around
which to tumble, spin, or rotate. Pivot X/Y and Pivot Z set the X, Y, and Z coordinates of the
pivot point. If the Lock Pivot checkbox is selected, moving the pivot point has no affect.