大气效果的绘制技术综述

A Survey of Rendering Atmospheric Effect

户外场景的一个重要特征就是大气的存在 .大气对户外光照的影响直接关系到户外景物绘制的正确性 .因此 ,大气效果的绘制技术 ,即表现大气在户外景物中存在的绘制技术 ,在图形学界被广泛地探讨 ,成为最具挑战性 ,也是最具吸引力的图形学研究方向 .文中回顾了该技术的发展 ,从辐射传输理论、天空和太阳模型、大气模型和绘制方法 4个方面介绍现有的图形学技术 ,并对使用这些技术的图形学应用软件以及技术的发展方向作了简要的介绍 .

The most important feature of outdoor scene is the existence of atmosphere. The influence that atmosphere exerts on illumination counts for much in the correct rendering. This paper reviews the development of rendering technology for atmosphere and atmospheric scene and makes a survey of radiative transfer theories, sky and sun model, atmosphere models, related rendering algorithms and application. At the end of this paper, we also briefly introduce the remaining research areas.