摘要
在太阳光照射下,不同物体呈现出不同颜色,原因就在于物体对光谱成分有选择吸收和选择反射的性质.物体本身的光谱特性是物体产生不同颜色的主要原因,如何精确地对这些光谱特性进行建模,是生成逼真图象的关键.本文在分析现有模型存在问题的基础上,提出了一种综合的能更逼真地模拟各种光照效果的光照模型.
Based on the existing models, an improved illumination model is presented, which uses illuminance (not luminance) to express the brightness of surfaces and can produce the feeling of depth. By assuming that the surface consists of nonspecular microfacets, the model characterizes the micro-architecture and the reflectance properties of the surface.
出处
《计算机学报》
EI
CSCD
北大核心
1997年第2期165-173,共9页
Chinese Journal of Computers
关键词
计算机图形
逼真度
光照模型
光谱特性
Computer graphics, fidelity, illumination model, spectral reflectance property.