Study on the key technology of terrain visualizing system and it's realization

This paper discussed the key technology of terrain visualizing domain,and applied them to the terrain visualizing and emulating system.Using quadtree data structure to organize and manage the terrain data,building a continuous multi-resolution terrain grid model based on LOD,using the improved algorithms to eliminate cracks and the frustum-culling technique,the system achieved view-dependent terrain visualizing,not only have higher quality of visual effect,but also boost the speed of real-time rendering.