Abstract: A new scene graph that can effectively describe larg}scale virtual environment and a scene graph based Multi Space Partition tree(MBSP) were proposed. Proposed scene dispatch strategy of Dynamical Binary-tree Based Neural Network(DBTNN) , and gave the nerve network to dig the viewpoint change rule during the assembly process. At the same time,forecasted viewpoint state of the next step or the next steps by the network output, so that the scene had a fault tolerant scheduling, improved scheduling of real-time scenes and more intelligent scheduling. Finally, the test resups of different scenes show that the algorithm for largcscale optimization of complex scenes has very good results.

Key words: Virtual assembly,Scene scheduler,Dynamical binary-tree