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Creating a Realistic Metal Material
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.. figure:: material_metal.png 
    :align: center 

    **Metal material**

Main parameters:

    * Diffuse color almost black (0.01 - 0.05)
    * Reflection color almost white (0.9 - 0.99)
    * Fresnel enabled with strong IOR (10+)
    * OR Fresnel disabled
    * Varying glossiness (0.0 - 0.5)

This setup uses ``RED::IMaterial::SetupRealisticMaterial`` to produce metallic surfaces. A metallic surface is seen through its reflections. Chrome metals are almost perfect reflectors, while some other metals may exhibit more or less glossy reflections. Therefore, a metallic setup will mainly rely on its reflection parameter setup: the reflection color, the choice between Fresnel based or plain reflections, and the quantity of glossiness to setup. 