Application Of Virtual Reality Technology In Construction

In recent years effect drawing of buiding and three-dimensional animation are widely used in architecture. However, effect drawing can only provide static visual experience. Despite the strong three-dimensional dynamic three-dimensional animated expression, three-dimensional animation do not have real-time interactivity.Observer can only passively view the predetermined line and point of view, the information of viewers is partialy.Virtual reality is a kind of computer systems which can create and experience virtual world. Virtual reality system is virtual environment which is produced by computer-generated vision, hearing, touch and other effects on the user to produce a immersive interactive sense. With virtual reality technology, target customers can move around in the virtual system and arbitrarily view, virtual reality breaks the traditional limitation that observation can not be an interactive three-dimensional viewers.viewers can get more and more sense of realism.On the basis of virtual interaction, scenario modeling, virtual tour and other related technologies, the paper design and develop virtual real estate display system of construction of a residential background.Firstly, the paper analyzes the Virtual Reality System realizing technology, and gets a reasonable choice of realization, and gets the workflow on the conditions of having design drawing without physical buildings. Secondly, the paper researches geometric modeling of the building based on using single building plot plan and drawings and collecting relevant data and other relevant material. the light, texture, materials, and many other factors are concerned in the process of modeling. Finally the architectural model is transfered into virtual reality software CONVERSE3D, the interactive and realistic sence is produced through building models of parameter setting, the camera control and perspective conversion operation.the effects of roaming interactive virtual reality system, collision detection and timely response are made.The paper mainly focus the areas as follows:(1) designing virtual reality system. By comparing various Virtual Reality System technology, combineing with study of the special circumstances and the status of producing technology and draw lines, a fully functional residential real estate virtual display system is successfully developed.(2) studying modeling of the virtual scene. Collecting a lot information of residential construction and planning and design of construction drawings, the virtual model is accurately and efficiently built.(3) studying interactive navigation of virtual communities. The most different aspect of Virtual reality systems and the past 3d animation is interaction. Virtual tour and a variety of browsing ways, including a fixed path, the path choice, flight, etc., are demonstrated.