1.　　全景与鸟瞰的切换；

2.　　日景夜景以及四季效果模拟演示以及雨天以及下雪天的切换；

3.　　建筑内部以及样板房的展示；

4.　　碰撞检测功能；

5.　　三维场景漫游（人行和车行）；

-1 panoramic and bird' s eye view of the switch　2 daytime and night and seasonal effects of simulated rain, and snow days demo switch　3 inside the building and the model of the display　4 collision detection　5 three-dimensional scene roaming (people line and dealers)