The difference between diffuse and specular density illustrated in figure 2.2 . 漫射密度与定向密度之间的区别可用图22来说明。
2.
The above definition of diffuse density implies that the input light is collimated and that all the output flux is collected . 上面定义的漫射密度意味着输入光先经过准直，然后收集所有的输出量。
3.
The difference between diffuse and specular density illustrated in figure 2 . 2 漫射密度与定向密度之间的区别可用图2 2来说明。
