Japan Principle The conceptual opening of the metabolism as well as Tokyo - that shows just like an organism, the capacity to regenerate - brought him naturally to the idea of metamorphosis: a concept that is central to Japanese culture, thus the idea to have it gradually transform starting from photographs, HD videos and doing this with 2D and 3D animations. The mix of techniques serves to make the "machizukuri" perceptible, "the building of the city": Pierre-Jean Giloux names these metamorphoses: "Japan Principle ". In the images that are shown, the deployment of building facades refers to the movement of mobile partitions or sliding doors: Shojis. The progressive openning of the space and the multiple reflections produce an effect where the interior and exterior are so intricate that it becomes impossible to situate oneself. A sort of dialectic of the indoors and the outdoors. In this film « Egg of Wind » by Ito Toyo becomes a vector that allows us to travel and discover specific architectures in Tokyo and Yokohama.