Keyframeable. For more information, see Global Versus Keyframeable Parameters.

Trims the top, bottom, left, and right edges of an image.

Crop is at the bottom of the effects parameters hierarchy. It always crops the same four edges of the object no matter what orientation the object has. Cropping works only in 2D space so that 3D parameters such as Rotation and Position, which are higher in the hierarchy, take effect later in the processing. You don't need to adjust cropping before the other parameters, but it is difficult to crop edges if they are rotated to the vanishing point. For more information, see The Hierarchy of Parameters.

Crop button

Click the Crop button on the right of the Effect Editor to crop the image directly in the Effect Preview monitor. For more information, see Manipulating 3D Effects Directly.

T (top)

Crops the top edge of the image. Values range from –999 (bottom) to +999 (top). The values –999 to +999 are relative to the edges of the image. Zero is the center of the image.

B (bottom)

Crops the bottom edge of the image. Values range from –999 (bottom) to +999 (top).

L (left)

Crops the left edge of the image. Values range from –999 (left) to +999 (right).

R (right)

Crops the right edge of the image. Values range from –999 (left) to +999 (right).