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We present a sketching tool for crafting animated illustrations that contain the exaggerated dynamics of stylized 2D animations. Our system provides a set of motion amplifiers which implement a set of established principles of 2D animation. These amplifiers break down a complex animation effect into independent, understandable chunks. Each amplifier imposes deformations to an underlying grid, which in turn updates the corresponding strokes. Users can combine these amplifiers at will when applying them to an existing animation, promoting rapid experimentation. Our system leverages the freeform nature of sketching, allowing users to rapidly sketch, record motion, explore exaggerated dynamics using the amplifiers, and fine-tune their animations.
Kazi et al. (2016) studied this question.