Objects can be attached to interpolators of an associated type; for example, a Mesh can be attached to a MeshInterpolator. The interpolator types are:
·FrameInterpolator
·LightInterpolator
·MaterialInterpolator
·MeshInterpolator
·TextureInterpolator
·ViewportInterpolator
Other interpolators can also be attached to an interpolator. When you change the index of an interpolator, it sets the indices of any attached interpolators to the same value.
Note that for MeshInterpolators, you add a SetVertices key to a MeshInterpolator object by calling SetVertices on the MeshInterpolator object's IDirect3DRMMesh interface. The group index used with SetVertices must correspond to a valid group index in the Mesh object or objects that the interpolator is applied to.