Research and application of access control technique in distributed 3D virtual environment

Aiming at the lack of adequate and flexible access control in 3D virtual environment when used in education, according to RBAC model, we present an authority control method which can manage manipulations to all objects, e.g. a variety of assets, avatars, scripts and network communication pipes in 3D virtual environment. The proposed technique overcomes the insufficiency on access control aspect in original platform, and provides more powerful and fexible ability on it. We experiment with the method in OpenSim, a free open source 3D virtual platform, the results show its effectiveness and versatility.