Animations
An object animation is composed of a sequence of images, with each interpolated to the next one, that when played sequentially creates the illusion of animation. Expression Blend uses the concept of storyboard, which is a predefined sequence of steps. Each step can be identified as a keyframe. To execute an animation, you will need at least two keyframes on your timeline and will need to define what is going to change on an object between these two keyframes; then Blend will interpolate the changes in the timeline in order to make the animation more realistic.
Expression Blend, in order to save memory and keep the animation small in size, doesn't save an interpolated image of the change in every frame. Unlike other complex animation ...
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