In recent years, the techniques and applications of complex scene have been given extensive attention . especially the dynamic rendering technique of large scale 3d-scene has been a research hotspot of virtual reality at present 近年來,復(fù)雜場景的繪制技術(shù)與應(yīng)用受到了廣泛的關(guān)注,特別是大規(guī)模三維場景的動態(tài)繪制技術(shù),已成為虛擬現(xiàn)實(shí)的熱門研究課題。