The technique used is called ‘Embossed Clay Illustration’ (in Dhimant’s terms). It is different from typical clay animation, as the clay figures don’t stand upright but are laid out flat on a smooth surface. It is technically easier to animate in this manner, as it requires less planning than when armatures are used. Light is used to give the almost 2D surface, the look and feel of a three-dimensional one. The illusion of depth comes from the play of light and shadows. But the light has to be planned carefully in order to avoid throwing unnecessary shadows. This steals the volume. So the challenge is in creating a model that looks three dimensional under the camera.