The Bone Tool - Comcast.net

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14 Νοε 2013 (πριν από 3 χρόνια και 6 μήνες)

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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

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.

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.


New Terms


Root bone (the first
bone)


Head/registration point


Tail





Armature


A series of bones is an armature

New Terms, cont.



Pose/armature layer


New layer created after the first
bone is drawn

Pose layer is green



Pose frame


(see diamond at right)



A pose frame is like a motion



tween

layer



More New Terms

Transformation point: the
point around which the
symbol rotates
.

Two Ways to Use Bone Tool

Link Symbols


Link Shapes

Common Operations in the

Pose 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

Worksheet


Perform each of the functions on the worksheet.