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Interactive view-dependent rendering over networks.

Zhi Zheng1, Edmond Prakash, Tony K Y Chan

  • 1Nanyang Technological University, Singapore. zenat@pmail.ntu.edu.sg

IEEE Transactions on Visualization and Computer Graphics
|March 29, 2008
PubMed
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This study introduces a predictive parallel strategy for client-server view-dependent rendering, overcoming network latency and rendering overhead. The approach achieves interactive frame rates and acceptable quality for large models over slow networks.

Area of Science:

  • Computer Graphics
  • Networked Systems
  • Interactive Rendering

Background:

  • Client-server view-dependent rendering systems face challenges with rendering overhead and network latency, hindering interactivity.
  • Low-capacity clients and long network round-trip times exacerbate these issues for multiresolution rendering.

Purpose of the Study:

  • To develop a strategy for controlling rendering overhead on low-capacity clients.
  • To propose a predictive parallel approach to mitigate network latency in client-server rendering.
  • To ensure acceptable rendering quality and interactivity over challenging network conditions.

Main Methods:

  • Implemented a multiresolution hierarchy traversal management strategy for efficient rendering on clients.
  • Developed a predictive parallel strategy where client and server processes run concurrently.

Related Experiment Videos

  • Integrated view-parameter prediction, synchronization, and dynamic adjustment mechanisms to manage network variations.

    • Main Results:

    • The predictive parallel approach significantly reduces the impact of network latency by overlapping network time with rendering time.
    • Achieved interactive frame rates for large triangle models, even over networks with long round-trip times.
    • Maintained acceptable rendering quality despite transient network slowdowns and condition changes.

    Conclusions:

    • The proposed predictive parallel strategy effectively addresses the limitations of traditional client-server view-dependent rendering.
    • This method enables interactive performance and visual quality for complex models in networked environments.
    • The developed mechanisms provide robustness against variable network conditions.