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The Glossiness of Refractive materials<br />
Both refractive objects and reflective object have option setting <strong>for</strong> Glossiness. The difference is that<br />
Reflection Glossiness only affects the surface, where Refraction Glossiness will have an effect on the object’s<br />
transparency.<br />
The Glossiness of a refractive object usually used to represent different type of glass, <strong>for</strong> example, frosted<br />
glass. The refractions will become more blurry as the value is decreased, and at a certain point these<br />
refractions will become so blurry that they prevent what is behind the object from being distinguished.<br />
Refraction Glossiness default is set to 1.00, please refer to images<br />
below <strong>for</strong> impacts on different settings of Refraction Glossiness.<br />
Images below set the Refraction IOR to 1.55, you can see the<br />
Glossiness changes gradually from 0.85. It changes rapidly<br />
between 0.80 and 0.75. When the setting <strong>for</strong> Refraction Glossiness<br />
remains the same, different Refraction IOR will change the<br />
Glossiness of the object.<br />
Refraction Glossiness<br />
1.00<br />
0.95<br />
0.90<br />
0.85<br />
0.80<br />
0.75<br />
0.70<br />
0.65<br />
0.60<br />
0.55<br />
0.50<br />
0.45<br />
0.40<br />
0.35<br />
0.30<br />
0.25<br />
0.20<br />
0.15<br />
0.10<br />
0.05<br />
Just like the intensity of the Fog Multiplier affects its transparency, the Refraction<br />
Glossiness in thicker object becomes more obvious.<br />
Refraction Glossiness 1.0<br />
Refraction Glossiness 0.6<br />
Refraction Glossiness 0.6<br />
Gradient Map<br />
V-<strong>Ray</strong> <strong>for</strong> <strong>Rhino</strong> 35
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