The Coat tab is part of the V-Ray Material parameters.
Coat
...
Section
Column
width
57%
Coat Color – Determines the coat layer's color.
Texture – Specifies a texture file to be used for the coat layer.
Mix Strength – Specifies a blend amount for the texture map.
Coat Amount – Specifies the blending weight of the coat layer. A value of 0 does not add a coat layer, while higher values blend the coat gradually. See the Coat Amount example below for more information.
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 example below for more information. If Reflection Roughness is used, this parameter works as Coat RougnessRoughness.
Coat IOR – Specifies the Index of Refraction for the coat layer.
Column
width
5%
Column
width
38%
...
Section
Column
width
50%
Image slider
Panel
borderStyle
none
Coat amount = 0
Panel
borderStyle
none
Coat amount = 0.1
Panel
borderStyle
none
Coat amount = 0.3
Panel
borderStyle
none
Coat amount = 0.5
Panel
borderStyle
none
Coat amount = 0.7
Panel
borderStyle
none
Coat amount = 1.0
Column
width
50%
Image slider
Panel
borderStyle
none
Coat Clossiness = 0.2
Panel
borderStyle
none
Coat Glossiness = 0.4
Panel
borderStyle
none
Coat Glossiness = 0.6
Panel
borderStyle
none
Coat Glossiness = 0.8
Panel
borderStyle
none
Coat Glossiness = 1.0
...
Bump
...
Section
Column
width
57%
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.
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
