Virtual Reality: A brief survey

Virtual Reality is based on the notion of immersion i.e. a new technological advancement in the field of human-machine interaction bringing it closer to real life. It is a technology for simulation of a real or virtual world in which one can immerse, touch, & sense the objects with the virtual presence in that 3-D world. This paper reviews the ideas & concepts behind the architectural representation, supporting software & hardware implementations, various categorized languages & modelling tools etc. This paper also studies current research objectives, comparison with other virtualized environments, development trends of VR, & modeling methods. Based on the analysis of structure & functioning of virtual reality environment, this paper presents various applications of virtual reality & different categories of issues related to it.