| Reflection | ||||
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| Color | Specifies the color for reflections. | |||
| Roughness | This controls the specular roughness. The smaller the value, the smoother is the surface.
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| Samples | Specifies how many samples to trace for reflection. | |||
| IOR | The IOR to use to calculate Fresnel reflections.
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| Refraction | ||||
| Color | The color of the refraction. Setting this color to 0 disables refraction.
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| Roughness | Specifies the roughness of the refraction. The smaller the value, the smoother is the surface. Higher values can be used to emulate "ground glass" for example.
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| Attenuation | ||||
| Attenuation Strength |
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| Samples | Specifies how many samples to trace for refraction. | |||
| IOR | The index of refraction of the glass.
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| Diffuse | ||||
| Color | This diffuse colour of the material.
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| Roughness | This controls how diffuse is the material. A value closer to one simulate very rough material. A value of 0 renders a standard "lambertian" diffuse. On a more technical note, this paramter controls the roughness of the Oren-Nayer diffuse model. |
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