Adobe After Effects - Manual (Page 561)

Source
Multiplier
Offset
Camera System
X Rotation, Y Rotation, Z Rotation
X, Y Position
Z Position
Focal Length
Transform Order
Upper Left Corner, Upper Right Corner, Lower Left Corner, Lower Right Corner
Auto Focal Length
Focal Length
To the top
Note:
inherent depth—hence the absence of z scaling.
Specifies the gradient layer channel you want to use to control the transformation. For example, select Intensity 2 to use the intensity from
Gradient Layer 2.
The amount of transformation applied to the cards.
The base value from which the transformation begins. It is added to the transformation value (a card’s center pixel value times the
Multiplier amount) so that you can start the transformation from some place other than 0.
Camera System and Camera Position controls
Specifies whether to use the effect’s Camera Position properties, the effect’s Corner Pins properties, or the default composition
camera and light positions to render 3D images of the cards.
Rotate the camera around the corresponding axis. Use these controls to look at the cards from the top, side,
back, or any other angle.
Where the camera is positioned along the x and y axes.
Where the camera is positioned along the z axis. Smaller numbers move the camera closer to the cards, and larger numbers move
the camera away from the cards.
The zoom factor. Smaller numbers zoom in.
The order in which the camera rotates around its three axes, and whether the camera rotates before or after it is positioned
using the other Camera Position controls.
Corner Pins controls
Corner Pinning is an alternative camera control system. Use it as an aid for compositing the result of the effect into a scene on a flat surface that is
tilted with respect to the frame.
Where to attach each of the corners of the layer.
Controls the perspective of the effect during the animation. When Auto Focal Length is deselected, the focal length you
specify is used to find a camera position and orientation that place the corners of the layer at the corner pins. If this isn’t possible, the layer is
replaced by its outline, drawn between the pins. When Auto Focal Length is selected, the focal length required to match the corner points is used,
if possible. If not, it interpolates the correct value from nearby frames.
Overrides the other settings if the results you’ve obtained aren’t what you need. If you set the Focal Length to something that
doesn’t correspond to what the focal length would be if the pins were actually in that configuration, the image may look unusual (strangely
sheared, for example). But if you know the focal length that you are trying to match, manually setting Focal Length is the easiest way to get
correct results.
Caustics effect
For information on properties shared by several of the Simulation effects, see Common Lighting controls and Material controls .
This effect simulates caustics—reflections of light at the bottom of a body of water, created by light refracting through the surface of the water. The
Caustics effect generates this reflection and creates realistic water surfaces when used with Wave World and Radio Waves.
557