Apple Shake 4 New Features - Manual (Page 95)

Chapter 3 Compositing With the MultiPlane Node 95
Attaching Layers to the Camera
To use a MultiPlane node to matchmove one or more images into a scene using 3D
tracking data, you need to do three things:
• Import data from a .ma file.
• Position the images you want to matchmove.
• Attach the originally tracked image sequence to the camera.
Attaching the layer that produced the tracking data to the camera forces the attached
layer to follow along with the camera as it moves according to the tracking data. As a
result, the attached layer itself doesn’t appear to be moving in the camera output,
while the unattached layers that are positioned within the 3D workspace appear as if
they’re moving along with the features in the attached layer.
To attach a layer to the camera:
m Click the Attach to Camera button of a layer in the Images tab—the lock icon closes
when Attach to Camera is on.
That layer’s image is automatically locked to the full area of the renderCamera angle in
the Viewer.
When you turn on a layer’s Attach to Camera button, the faceCamera, parentTo, pan,
angle, scale, center, and aspectRatio parameters all disappear from that layer’s subtree
in the Images tab, replaced by a single parameter—cameraDistance.
The cameraDistance parameter lets you adjust the relative spacing between layers that
are attached to the camera, and the other unattached layers that are arranged within
the 3D workspace. This lets you determine which layers appear in front of and behind
attached layers.