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Bones

Before you begin the first exercise, take a quick look at the following examples to help you better understand the concept of bones. Bones are a deformation tool. Represented by a tie-shaped outline in Layout, a bone can deform the points of an object. Because points make up polygons, the polygons are, in essence, manipulated. The purpose of bones is to create a skeletal deformation of a solid object to give it movement and life. Without the use of bones, objects would need separate limbs to move independently of each other. A human, for example, does not have any joints at the elbows, wrists, knees, and so on. For the arms and legs to bend, a bone structure must be set up to deform the polygonal mesh. Because a robot would have joints at the elbows, wrists, and knees, bones are not needed. Figure 11.1 shows a bone in Layout.

Figure 11.1. This is a bone.



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