Abstract
Collaboration consists mainly of two tasks; one is each partner's task which is done by the individual, the other is communication with each other. In our previous paper, it was indicated that the viewpoint from the back of user's own avatar was useful for smooth communication. From that viewpoint, the user can see not only the behavior of partner's avatar but also that of his own avater and the relationship between them in virtual space. On the other hand, the other viewpoint of avatar's eye utilizes for the individual task. This paper investigates the influence of two changing methods of these viewpoints; one is a button method and the other is a body bending method, on the collaboration support and how to use each viewpoint in collaboration in virtual space. The result indicates that the button method is preferred to body bending method to change th eviewpoint, and that two viewpoints are inclined to use even in shape evaluation situation.
