Study on Simplification of Virtual Complex Scene Based on Quadtree LOD

How to simplify the virtual display of complex terrain scene is one of the research hot spots in the field of visualization.In order to meet the requirements of real-time and fidelity of complex terrain scene display and based on the vision of human being,quadtree LOD approach is used in this paper.Different details are decided according to view-distance and terrain coarseness.The terrain is parted recursively to plenty of nodes with different resolutions.The cracks caused by different node resolutions are mended with different ways according to view distance.The terrain simplification is attained effectively.