摘要
在虚拟环境实时漫游中利用画面连贯性加速生成真实感图形的研究工作中，镜面分量的计算量往往较大，且因其与视点相关而难以利用其连贯性．本文采用overlay技术，把景物表面光亮度中的镜面分量作为一个独立层面进行叠加，在此基础上提出了一种新的镜面高光分量绘制模型．新模型采用光亮度可分辨性来完成其快速绘制，并在虚拟环境实时漫游中能满足限时计算要求，在实践中取得了良好的效果．
The calculation of specular component such as highlight is commonly considered dlfficult to be speeded up due to its viewpoint-dependence. This paper,develops a new fast highlight algorithm based on the intensity overlay concept. A new specular component evaluation model is proposed, and the rendering time for highlight is then reduced to nearly 50% by taking account of the color discernible attribute. Experimental results dernonstrate the potential of the new algorithm.
出处
《计算机学报》
EI
CSCD
北大核心
1998年第6期499-505,共7页
Chinese Journal of Computers
基金
国家自然科学基金
