一个绘制大气介质效果的软件框架

大气介质的存在作为户外场景的一个标志成为计算机视觉领域和计算机图形学领域研究的一个热点和难点.本文的主要目的就是从辐射传输理论入手研究大气效果的图形学仿真技术.基于一个扩展的Path Tracer,本文描述了一个完整的大气效果绘制的绘制框架.这个基于光谱的绘制系统将随机行走从空间扩展到光谱,可以处理介质参与的场景绘制,并引入了解析的天空模型.本文的最后描述了绘制实验系统.

A Software Framework for Rendering Atmospheric Effect

As an important phenomenon of outdoor scene,atmospheric degradation was paid increasing attention in the field of both computer vision and computer graphics.Based on the theory of Radiative Transfer,the paper is to explore the techniques of computer graphics relating to this phenomenon.Building on an extended path tracer,it describes an integrated rendering framework of atmospheric degradation,which makes the ray walk randomly both through the space of scene but the domain of spectrum.Also it introduces an analytic model of sky and the detail of implementation is described.