The Coat tab is part of the V-Ray Material parameters.
Coat
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Coat Color – Determines the coat layer's color. A texture can be attached to this slot.
Texture – Specifies a texture file to be used for the coat layer.
Mix Strength – Specifies a blend amount for between the texture map and the coat color.
Coat Amount – Specifies the blending weight of the coat layer. A value of 0does not add a coat layer, while higher values blend the coat gradually. See the Coat Amount examplebelow for more information. A texture can be attached to this slot.
Coat Glossiness – Controls the sharpness of reflection. A value of 1.0 means perfect glass-like reflection; lower values produce blurry or glossy reflections. See the Coat Glossiness examplebelow for more information. If the Use Roughness option is enabled, this parameter works as Coat Roughness. A texture can be attached to this slot.
Coat IOR – Specifies the Index of Refraction for the coat layer. A texture can be attached to this slot.
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Example: Coat Amount
This example shows how the Amount value affects the look of the material. The base Reflection Glossinessis 0.76and the Coat glossiness Glossiness is set to 0.985. IORis 2.2and the Coat Coloris the default white.
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Example: Coat Glossiness
Coat glossiness Glossiness controls the sharpness of the coat reflection. In this example, the base Reflection Glossinessis set to 0.76and the Coat Amountis set to 1. IORis 2.2and the Coat Coloris the default white. Notice how higher values produce glossier reflection and lower values make it look blurry.
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Image slider
Panel
borderStyle
none
Coat amount = 0
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borderStyle
none
Coat amount = 0.1
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borderStyle
none
Coat amount = 0.3
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borderStyle
none
Coat amount = 0.5
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borderStyle
none
Coat amount = 0.7
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borderStyle
none
Coat amount = 1.0
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Image slider
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borderStyle
none
Coat Clossiness = 0.2
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borderStyle
none
Coat Glossiness = 0.4
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borderStyle
none
Coat Glossiness = 0.6
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borderStyle
none
Coat Glossiness = 0.8
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borderStyle
none
Coat Glossiness = 1.0
Bump
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Coat Bump Lock – When enabled, it prioritizes the base bump map during rendering over the coat bump map. You can use it to temporarily hide the coat bump.
Coat Bump Map – Specifies the bump/normal map used as a coat bump.
Coat Bump Amount – A multiplier for the bump effect. A texture can be attached to this slot.
Coat Bump Type – Allows the user to specify whether a bump map or a normal map effect is added.
Bump Map Normal map in tangent space Normal map in object space Normal map in screen space Normal map in world space From texture bump output Explicit
