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The Bone Tool

The Bone Tool . Flash Class 2011. Photographer Finds the Bone Tool Beautiful. This picture was posted by a photographer at Flickr . . The Bone Tool is Based on Inverse Kinematics. What is kinematics?. Kinematics.

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The Bone Tool

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  1. The Bone Tool Flash Class 2011

  2. Photographer Finds the Bone Tool Beautiful This picture was posted by a photographer at Flickr.

  3. The Bone Tool is Based on Inverse Kinematics What is kinematics?

  4. Kinematics Kinematics is the process of calculating the position in space of the end of a linked structure, given the angles of all the joints. It is easy, and there is only one solution.

  5. Inverse Kinematics Inverse Kinematics does the reverse. Given the end point of the structure, what angles do the joints need to be in to achieve that end point? It can be difficult, and there are usually many or infinitely many solutions.

  6. New Terms • Root bone (the first bone) • Head/registration point • Tail • Armature A series of bones is an armature

  7. New Terms, cont. • Pose/armature layer New layer created after the first bone is drawnPose layer is green • Pose frame (see diamond at right) A pose frame is like a motion tween layer

  8. More New Terms Transformation point: the point around which the symbol rotates.

  9. Two Ways to Use Bone Tool Link Symbols Link Shapes

  10. Common Operations in thePose Layer • Speed up or slow down animation • Select frames • Remove frames • Insert a pose • Clear a pose • Copy a pose • Cut a pose • Paste a pose

  11. Worksheet Perform each of the functions on the worksheet.

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