Animating hand-drawn sketches: Copyright restrictions prevent ACM from providing the full text for this work.

We present a method for creating consistent 3D models from 2D vector drawings to add effects such as shading, shadowing, or texture mapping of characters on cel animations. We here say 3D models are consistent if they have one-to-one vertex correspondence and their 2D projections coincide with input drawings. To create such models, we first make consistent 2D triangles from the drawings and then apply an inflation method on them. Unlike the previous method by Petrović et. al. [2000], due to the consistency of the models, we can use this method for animatable-character modeling systems from sketches or for making inbetween frames that interpolate the key-frame drawings by using morphing techniques.