Interactive snow sculpture painting

This video shows the live-painting of snow sculptures with dabs of digital paint, deploying a mobile phone (virtual spray can) with accelerometer, a PC and a video projector - creating 100% recyclable art. The technology used is called MobiSpray, which has been reported by the author at SIGGRAPH 2009 in the Art papers track. Using a mobile phone in this context allows the painter to roam freely (walk, stand, lie) around the target object, far or near in real physical space, while looking directly at its surface to see how the painting appears in real time. The phone's keyboard keys are used for controlling the drawing tools such as spraying colors or spraying intensity.