2017

5 From the Perspective Grid menu's Grid tab, select whether you want a 3D or 2D grid mode.
6 While in Action Object Solo view, drag each of the four corners of the rectangle to the desired location.
The grid automatically aligns to the new perspective.
TIP If the Magnifier button is active in the Display tab of the Perspective Grid menu, each corner is magnified
as you drag it, helping you to find the exact location to place it.
7 Set other Grid Settings (page 531), as needed.
8 Once you are satisfied with the alignment of the perspective grid rectangle, parent an object to the
Perspective Grid node. The object inherits the perspective transformation of the Perspective Grid node.
Switch to Result view (F4) to see the complete scene.
NOTE You can also manipulate the perspective grid in the Result view, provided that Lock is not selected in
the FOV Adjustments box of the Perspective Grid menu, or the perspective grid camera is the same as the
Result camera.
Working with FOV
The FOV Adjustments box in the Perspective Grid menu allows you to animate the perspective grid by
positioning corner points in other frames. To create an animated transform, place the grid in the first frame,
then select Lock in other key frames. You can also select Lock if the camera FOV does not change over the
length clip.
If you select Dynamic in the FOV Adjustments box, Action will solve for the FOV in each frame on which
you edit the corners. The target camera FOV and position adjusts to fit the perspective set by the perspective
grid. If Lock is selected, the perspective grid does not adjust the target camera. To use the existing value in
the camera and not solve for it, regardless if you animate the perspective grid, you should select Lock before
positioning in the first frame.
NOTE When the FOV of the camera is computed (not locked), the camera is repositioned in order to frame the
media.
530 | Chapter 15 Compositing in 3D Space with Action