真实感渲染是三维影视、动漫、游戏中所采用的关键技术之一，目前随着显示设备性能的提高，对于三维场景规模、渲染真实感的质量以及速度需求均在不断提升。但是为了达到高度真实感需要模拟并计算光线在场景中传播的物理过程，尤其对于大规模场景来说，其计算复杂度非常高，并且给存储带来了极大的挑战。本项目针对上述问题，着重研究面向E级计算的大规模场景高度真实感并行绘制方法，包括大规模场景高度真实感并行渲染引擎架构、超大规模复杂场景的数据表示和存储方法、基于物理的大规模场景分布式并行渲染方法、基于众核的全局光照优化计算方法以及基于高精度材质的并行着色方法等。并依托E级计算机，研发大规模场景高度真实感并行渲染引擎，以满足影视动漫、虚拟现实、工业设计仿真等领域高效、高质渲染的需求。

Photorealistic rendering is one of the key technologies used in 3D film, animation and games. As the performance of the display device improves, the demands of the 3D scene’s scale, the rendering quality and the rendering speed are increased dramatically. In order to increase the reality, the physical process of light propagation in a scene should be simulated and computed, especially for the large scene. But the computational complexity is very high and brings great challenges to storage. Facing on the above problems, this project focuses on the research of parallel photorealistic rendering techniques of large scale scenes for E level computing, including parallel photorealistic rendering architecture of large scene, data representation and storage method of large scale complex scene, distributed parallel physical-based rendering method of large scene, the global illumination optimization and high precision material computing method based on many-core processing units etc. Relying on E-level high performance computers, we develop a parallel photorealistic rendering engine to meet the requirements of both high quality and fast speed in the field of movie animation, virtual reality, industrial design and simulation.