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SAGE -based framework for distributed virtual reality

Author: ChenXiaoZuo
Tutor: LiMingLu
School: Shanghai Jiaotong University
Course: Applied Computer Technology
Keywords: Virtual Reality Distributed Computing SAGE
CLC: TP391.9
Type: Master's thesis
Year: 2008
Downloads: 44
Quote: 2
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Abstract


In recent years, distributed virtual reality technology is a hot field of scientific research and engineering . However, in a distributed virtual reality system development process, in order to achieve real and real-time immersive and interactive performance , designers need to address many issues , including how to reduce latency, how to deal with network transmission, scene rendering , physics simulation, data synchronization and hardware support. An efficient and easy to use virtual reality development framework can effectively reduce the virtual reality application developers design difficulty and realization costs. Based on this concept , the paper draws on many domestic and foreign -related implementation and application of proposed based SAGE (Simple Adaptive Grid Engine) Distributed Virtual Reality Framework . The framework has two main characteristics: 1 ) simple and efficient, namely the use of distributed computing technology reduces system latency , without professional graphics hardware support. The SAGE middleware framework through simulation tasks assigned to different segments corresponding distributed modules ( rendering module , physical module and simulation module ) , these modules can run on different servers , and can be executed concurrently . This design will significantly decrease the dummy delay . 2 ) Ease of application development, namely the use of transparency SAGE distributed middleware and distributed data synchronization calls using modular design hidden scene rendering and physical simulation of the underlying details . This framework enables application developers can focus more on high-level virtual reality logic, thus improving the efficiency of development , reducing system development costs. The framework was carried out in a laboratory environment the performance and scalability of these two indicators of the test. Monitoring performance testing under different virtual scene complexity of system latency and bandwidth usage ; scalability testing to monitor the scale of different clients in case of system latency and bandwidth usage . Test results show that the framework in the small -scale distributed virtual reality environment with good performance and scalability .

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CLC: > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > Computer applications > Information processing (information processing) > Computer simulation
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