Interpolation

Interpolation greatly simplifies a 3D objects’ animation. Unlike parametric curves, it is not necessary to define the position of the object as a function of time. When interpolation is used, we only need to define control points or knots. The set of control points describes the path that a particular animate object will follow. There are many interpolation methods; however, it’s always a good idea to start with the basics.

Linear Interpolation

This method requires that we define the starting and ending points of the location of our object, along with the number of interpolating steps. The object will move on the line determined by the starting and ending points:

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