Mainly introduce the modeling methods of sunlight and skylight and current works on outdoor scene rendering.
主要介绍太阳光和天空光的建模方法和现有的一些室外绘制的工作。
The methods of cloud modeling and rendering in computer graphics are summed up. The succeeding and typical genetic technology and physically based technology at present are summarized.
本文对计算机图形学中三维云的建模和绘制技术进行了概述，主要介绍目前比较典型的基于个体生长的云建模技术和基于物理过程的云建模技术。
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