This manuscript is a short summary of the recent action researches to scene realism in a MPEG-4 environment. The special area, that was regarded here, is the creation of real time shadows based on the method of shadow volumes. Shadow volumes are well-known an used in the present computer games. The new approach in this paper is the attempt for standardization for MPEG-4 real-time applications. Additionally also refinements of this method were executed, by the detailed view of the scene management
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