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• 专论：第21届中国计算机辅助设计与图形学暨第11届全国几何设计与计算机联合会议(CAD&CG GDC 2018 桂林) • 上一篇    下一篇

一种场景内容分布的交互式渲染系统

  

  1. 1. 长安大学信息工程学院，陕西 西安 710064； 
    2. 中国科学院自动化研究所模式识别国家重点实验室，北京 100190； 
    3. 中国科学院软件研究所计算机科学国家重点实验室，北京 100190
  • 出版日期:2019-02-28 发布日期:2019-02-27
  • 基金资助:
    中央高校基本科研业务费专项资金项目(310824173401)

A Scene-Distributed Interactive Rendering System

  1. 1. School of Information Engineering, Chang’an University, Xi’an Shaanxi 710064, China; 
    2. State Key Laboratory of Pattern Recognition, Institute of Automation, Chinese Academy of Sciences, Beijing 100190, China; 
    3. State Key Laboratory of Computer Science, Institute of Software, Chinese Academy of Sciences, Beijing 100190, China
  • Online:2019-02-28 Published:2019-02-27

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摘要： 近年来，三维虚拟场景的规模和复杂程度不断提高，受到硬件的限制，一些应用 中的超大规模场景(如建筑群，城市等)很难在单机上进行渲染或满足可交互的需求。针对该问 题，提出了一种分布式渲染框架，将大规模场景在内容上进行划分，得到单一节点可渲染的子 场景。这些子场景被分布到集群中不同的渲染节点进行处理，其渲染结果根据深度信息进行合 成得到整个场景的最终渲染结果。为了降低交互响应时间，需对子场景的渲染结果进行压缩传 输。实验充分验证了提出的分布式渲染系统能够高效处理超大规模场景的渲染和交互，并且具 有良好的可扩展性，能够满足很多领域中对大规模场景交互式渲染的需求。

关键词: 渲染, 分布式系统, 场景分布, 交互式

Abstract: With the constant increase in the scale and complexity of three-dimensional virtual scenes in recent years, very large-scale scenes (such as buildings, cities, etc.) can hardly be processed on single rendering node and their interactive performance can also be hard to achieve. Aiming at this shortcoming, the authors present an interactive distributed rendering framework. The authors divide the large scene into a set of renderable sub-scenes, which are distributed to different rendering nodes for processing. Intermediate sub-scene rendering results are merged to the final result based on depth information. To reduce the latency, the rendering results are compressed to accelerate the network transmission. The proposed distributed rendering system can efficiently process rendering and interaction for large-scale scenes. Moreover, the experiment has also confirmed that it is able to provide good scalability. A wide range of applications can benefit from interactive distributed rendering by this system.

Key words: rendering, distributed system, scene distribution, interactive