In an interdisciplinary context with regards to the experience of interaction in virtual reality art installations, we propose an analysis from the point of view of exchanges between the user and the art installation, which is produced by a dual-flow: data flow and scene flow. This dual flow is defined as a double layer which in parallel has a physical component and an abstract one, the division is between a physical interaction considered as external and the virtual as internal. The purpose is to identify and focus the relationship between materials and components of the interaction experience.