ABSTRACT
Many people have made efforts on the application of virtual reality technology, providing not only support for the expansion of application fields of the technology but also a theoretical basis for the design and implementation of the yoga system. Xin Cai (2010) pointed out that training tasks can be accomplished by the cooperation of auditory sense, vision, and touch in a virtual environment through interactive devices with the support of a network environment and multiple users’ viewing interaction. Structural design, technical framework, network communication, and application examples of a multiple users’ coordination training system based on virtual reality were also introduced. Besides, this system has a remarkable practicability [2]. Xin Gao (2004) successfully designed and realized a 3D landscape stereoscopic roam system of the bicycle based on a microcomputer platform with the following devices: a computer configured by a CPU of Pentium IIII 2.4GHz, an internal storage of 2GB, a hard disk of 80GB and a stereoscopic display card
of Quadro4 750XGL 128MB, an exercise bicycle equipped with large anti-vibration flywheels, a 21-inch flat ViewSonic display with a 120Hz refresh rate, a pair of active stereoscopic glasses equipped with an infrared emitter, an operating system of Windows 2000, stereo image generation software and stereo display interface software programmed by Visual C++6.0, Open GL 3D graphics standard, and 3Dmax and ArcInfo8.0.2 3D modeling tools. Besides, it is perfectly able to simulate the real feeling of cycling [3]. Hua Chen et al. (2001) indicated that VRML constructs a 3D scene of real-time rendering in flexible and effective ways and realizes interactions with the scene in an event-driven way. All of these provide a great convenience for the establishment of a virtual reality system mainly featured by real-time 3D interaction. A scheme of constructing a virtual reality system based on VRML is also proposed, which is regarded as a quick and effective software method of realizing the virtual reality system [4].
