Hmm—is this a useful aid to novice artists, the Centrifugal Bumblepuppy version of paint-by-numbers, or both? It’d be fun to try it & find out.

SketchAR is an application through which the user sees a virtual image on the surface of which is planning to transfer a sketch. In one hand, the user holds a phone and a screen sees a virtual image, while the other hand encircles virtual sketch lines already on paper.

[YouTube]