"We aren't just fixing geometry," explains a lead artist at a prominent Tokyo-based studio specializing in the technique. "We are fixing the light. A smile isn't just skin moving; it is light hitting the cheekbones differently. It is the shadow under the lower lip. In Sumiko casting, we manipulate the surface normals to ensure that when physical light hits the printed object, it mimics the organic light of the moment."
Sumiko Smile " is a name associated with an actress appearing in several TV series and films sumiko smile casting