Affect specular (影响高光)：启用该选项后，VRay灯光会对物体的高光区产生光照效果，并且物体的高光区可以对光源进行反射。8 E Z0 m2 m' D3 c.
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现在右键点击MR区域泛光灯，将其中的“影响高光”和“影响漫反射”属性关闭。
Now make a right mouse button click on the MR. Area Omni and disable "AFFECT SPECULAR" and "AFFECT DIFFUSE".
有一点很重要就是要取消掉“影响高光”的参数。我们不想这盏灯光产生高光，只影响漫反射即可。
It is important to uncheck the "Affect specular" slot, we don't want any specular reflection from that light, only diffuse light.
对光管进行部分镀高反膜尽可能消除散射光对光吸收系数测量的影响，从而提高了系统的精度。
The system also could decrease the effect of scattering light on absorption coefficient measurement by partly plating highly reflective membrane, so that we can improve the precision of the system.
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