Skeletal Animation

Source：http://www.3d-canvas.com/3DCanvasDocumentation/tutorialskeletalanimation.htm

Skeletal Animation is a technique used to pose character models. A skeleton is embedded in, and attached to, a character model. Once the skeleton is attached, the character model becomes the skin. Posing the skeleton causes the skin to be deformed to match the position of the underlying bones.
骨骼動畫是一種用於構成角色模型的技術。將骨架嵌入，並連接到一個角色模組。一旦骨骼連接，角色模組就成了這個骨架的皮膚。而這模擬出來的骨架將是這一句角色模型變型的依據。

Skeletal Animation has a major advantage over jointed models in that a one piece mesh is used, so there are no seams.
骨骼動畫是利用模組的網格去做變型，對節理模型具有顯著優勢，所以沒有接縫。