Adobe Flash Professional CS6 Adobe Flash Professional CS6 Classroom In A Book | Page 187

inverse Kinematics with Shapes
The crane is an armature made with various movie clip symbols. You can also cre-
ate armatures with shapes, which are useful for animating objects without obvious
joints and segments but can still have an articulated motion. For example, the arms
of an octopus have no actual joints, but you can add bones to a smooth tentacle to
animate its undulating motion.
defining bones inside a shape
You’ll add bones to an octopus—perhaps one that was picked up by the crane from
the ocean depths—and animate one of its tentacles.
1 Open the file 05ShapeIK_Start.fla. Choose File > Save As. Name the file
05ShapeIK_workingcopy.fla.
The file contains an illustration of an octopus. One arm is separated on its own
layer called arm1.
2 Lock all the layers except for the arm1 layer and select the contents of the
arm1 layer.
3 Choose the Bone tool.
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Lesson 5
Articulated Motion and Morphing