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Linking the sphere to the box causes the sphere to move with the box. The
distance between the sphere and the box depends on the frame when the link
is made. Linking the sphere on different frames has the following effects:
■ Link on frame 0, and the sphere stays next to the box as it moves.
■ Link on frame 50, and the sphere stays a distance 20 units away from the
box as it moves.
Left: Ball linked at frame 0 follows the box on the side.
Right: Ball linked at frame 50 follows the box 20 units away.
Unlinking Objects After Animation
When you unlink a child, its frame 0 transforms are taken from the transforms
of its parent at the frame when the link is removed.
Imagine a sphere linked to a box moving around the face of a clock. The box
starts at 12 o'clock and travels all the way around the face over 100 frames.
The figure shows a box moving in a circle with a sphere linked above it.
3340 | Chapter 15 Animation