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Virtual Reality technology is being widely used in various fields, especially in industry. it is widely used in practice for assembly simulation. However, the size of the data for simulation expands quickly along with the increase in components, which make it inconvenient for web publishing but can only be viewed locally. This paper proposes a approach to reduce the size of simulation file using lightweight...
Sudden leakage has become a growing threat to public safety in cities. In our study, constructing a model of three-dimensional dynamic diffusion of leaked pollution gas, and exploring key technologies for space-time evolution of leakage diffusion, we implemented the visual processing of positioning and monitoring of regional pollution and also implemented the visual presentations and interpretation...
A visual simulation system for flight with virtual reality is designed and realized by OpenGL on Visual C++ platform. The flight environment virtual simulation system can simulate the flight rules in 3D space. In the system,the aircraft model is 3D and can be controlled. Also its poses can be displayed in 3D. The results of visual simulation show that this system is workable and effective. It is an...
Aircraft combat simulation training system is extensively applied to modern airforce training instead of the real flight training, for that it is less expensive but more flexible. In order to satisfy the need of complex training like collaborate fighting, this paper implemented a multi-aircraft combat simulation system for aircraft training based on HLA (High Level Architecture). This system builds...
A visual simulation system of human evacuation in subway station was introduced in the paper. The algorithm of data fit was designed according to the analysis of fire simulation numerical value and evacuation simulation numerical value, and the problem of the visual output in real time was resolved by the algorithm. The system was reviewed from model configuration, function, the establishment of model...
Developing sustainable urban environments is complex as it requires consideration of interacting social, economic and environmental sustain ability factors. The task is made even more difficult by the wide variety of stakeholders (e.g. planners, architects, businesses and the public) that may be involved in the process and the lack of a common language for all to understand. This paper describes a...
Building on the extensive research in Virtual Reality (VR), we are proposing a new dynamic prototype for modelling and simulating carbon emissions in a virtual village called VIRVIL. VIRVIL is a simulated settlement for the assessment of the impact of low and zero carbon technologies and measures in the built environment. The prototype will focus on the impact on the community as a whole, as well...
Based on the real-time fluid simulating method in the field of volume and surface rendering, gas phenomena can be rendered by using semi-Lagrange algorithm in three-dimensional volume environment. Combined with the large eddy model of single building, simulation of turbulent wind field around building by simplified eddy model can decrease the complexity, and add details to render. The mirror reflection...
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