Hand-drawn animation with self-shaped canvas

Although 3D CG tools produce similar style animations with conventional 2D animation, conventional hand-drawn animation has advantages that cannot be substituted in animation produced by those tools. This paper introduces a new method to assist animators in creating 2D keyframe animation, which utilizes the self-shaped canvas hidden from the user. Drawing keyframes is the main input. Because the canvas has a three-dimensional shape deformed according to keyframes, inbetween animation with them mapped on it obtains depth-aware motion.