Abstract
On the making Image Art, not always in Computor Graphics, the existence of the element as "obstacle" is the most important. The purpose is to make it clear that "Unvisible Structure" to be "Visible and Simple space form". The "obstacle" itself creats the basic groung of the story forming.The condition that decides the aspect of the "obstacle" is simplified about 10 parts. Each condition perform rerative direction inside the structure.
