Animation

Key Frame Interpolation vs. Explicit Transformations--1

Dope sheet is animator's representation of parameterized functions which are transforming an animating object.
A curved line on the dope sheet represents a parameterized function which is not changing linearly.
Nonlinear interpolation is used to realistically accelerate and decelerate an animating object.
This technique is called easing (details in a few slides).

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