Animation array, more info: http://doc.babylonjs.com/tutorials/Animations
Property giving the Model Key associated to the property.
This value is constructed from the type of the primitive and all the name/value of its properties declared with the modelLevelProperty decorator
@returns the model key string.
States if the Primitive is dirty and should be rendered again next time.
@returns true is dirty, false otherwise
Disposable pattern, this method must be overloaded by derived types in order to clean up hardware related resources.
@returns false if the object is already dispose, true otherwise. Your implementation must call super.dispose() and check for a false return and return immediately if it's the case.
Returns as a new array populated with the Animatable used by the primitive. Must be overloaded by derived primitives.
Look at Sprite2D for more information