In this paper we introduce a novel version of a facial sketching
interface control system based on simple strokes on a 3D mesh or
on a virtual canvas (see Fig. 1). Sketching is an increasingly
popular way to create, deform or control 3D models. It allows
the user to intuitively create animations and free-form object
deformations[10] (e.g. designing a 3D model by drawing its
silhouette), or to control character animation [26]. However,
while most of these approaches act on the 3D mesh of the model,