Abstract: Applications of virtual reality requires graphic system to have the capacity of rendering more and more complex scenes in real time. It is natural to apply parallel rendering system based on PC cluster to virtual reality because of its high performance-cost ratio and good scalability. A sort-first parallel rendering system based on retained-mode is presented to study the key factors of parallel rendering efficiency. Implementation steps and experimental data are provided. The system is proved effective in parallel computing and load-balance problem, and capacity of rendering complex scene in real time can be achieved eventually.

Key words: virtual reality, parallel rendering, load-balance, belong determining

摘要： 虚拟现实应用要求图形系统具备实时渲染复杂、精细场景的能力。基于PC机群的并行渲染系统具有性价比高、扩展性好的特点，适合虚拟现实应用。该文针对虚拟现实应用设计并实现了一个保留模式的sort-first并行实时渲染系统，对影响渲染性能的关键因素进行研究，给出具体实现步骤、试验验证数据和结论。应用表明，该方法能够实现系统的高效并行计算及虚拟现实应用中的复杂场景实时处理。

关键词: 虚拟现实, 并行渲染, 负载平衡, 归属判断

CLC Number: 

• TP311