Hanqiu Sun Chinese University of HongKong A distributed virtual reality system base on a hybrid rendering scheme is presented in this paper. Unlike the traditional image based rending algorithm, our approach divides the local scene within the frustum of the current viewpoint into two layers, i.e., the front layer and the back layer. Objects in the front layer are rendered in real time with a geometry based hardware z-buffer algorithm. To generate the image of back layer, we first perform a nonlinear transformation to all visible points of a key-frame adjacent to the current viewpoint to reveal their coplanar characteristics. As our approach consists of two independent phases, it can be easily implemented in parallel or distribution mode.
Experimental results show that our approach has a satisfactory performance.
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