Abstract: In order to meet the needs of allowing more than one person conducting a certain virtual experiment at the same time in different places,we proposed a multiplayer online virtual experiment system built by Kinect somatosensory equipment and Unity 3D engine.In this system,the virtual experiment scenes are built by Unity 3D engine and experimental equipments are made by using 3D Max which is well-known as a modeling software.The multi-player online function is completed by the network communication technology.To make users feel real,the body gesture caught by Kinect somatosensory technology can be used to control first-person-character to walk around,grab experimental equipments and manipulate the menu in the virtual scene.The practical result shows that the Kinect gesture recognition has good accuracy and robustness,and is hardly affected by light situations and complex background.At the same time,the communication between the server and client is stable enough to build a remote virtual experiment system,and the system can achieve a high immersion with lower cost.

Key words: Multiplayer,Virtual experiment,Kinect,Somatosensory interaction,Unity 3D