Study on the virtual natural landscape walkthrough by using Unity 3D

This paper describes the use of this 3D virtual reality engine of making natural landscape walkthrough. It explains the methods of making the sky, topography, trees and flowers, water of nature common things in Unity 3D, and expound Unity 3D software has quick and convenient advantage in making of virtual roaming, at last, it emphaise the pursuit for realistic scene is more important than the scene optimization under the condition of current level of computer.