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The Coat rollout is part of the Generic material's parameters.

Coat

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Section
Column
width65%60%

Available only in Advanced mode.

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.

Coat Color – Determines the coat layer's color. A texture map can be used here.

Coat Glossiness – Available when the Surface Control option is set to Use 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.

Coat Roughness – Available when the Surface Control option is set to Use Roughness. Controls the sharpness of reflection. A value of 0.0 means perfect glass-like reflection; higher values produce blurry or glossy reflections.

Coat IOR – Specifies the Index of Refraction for the coat layer.

Column
width5%

 

Column
width30%35%


Coat Bump

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Section
Column
width65%60%

Available only in Advanced mode.

Mode / Map – Allows the user to specify whether a bump map or a normal map effect is added to the base material.

Bump Map – Requires a height map.

Bump Texture Channel – Most commonly used for the Round Edges effect (Edges texture used as bump).

Normal Map – Requires an RGB map. If a Bitmap texture is slotted, its color space must be set to Rendering Space (Linear).

Amount – Multiplies the Bump / Normal effect. See the Coat Amount example below.

Column
width5%

 

Column
width30%35%


...

Anchor
coat
coat

 

Section
Column
width50%

Example: Coat Amount

 

This example shows how the Amount value affects the look of the material. The base Reflection Glossiness is set to 0.76 and the Coat Glossiness is set to 1. The value of the Coat IOR is set to 2 and the Coat Color is the default white. 

Image slider
Panel
borderStylenone

Coat Amount = 0

Panel
borderStylenone

Coat Amount = 0.25

Panel
borderStylenone

Coat Amount = 0.5

Panel
borderStylenone

Coat Amount = 0.75

Panel
borderStylenone

Coat Amount = 1

Column
width50%

Example: Coat Glossiness

 

Coat Glossiness controls the sharpness of the coat reflection. Here, the base Reflection Glossiness is 0.76 and the Coat Amount is 1. Coat IOR is 2 and the Coat Color is the default white. Notice how higher values produce glossier reflection and lower values make it look blurry.

Image slider
Panel
borderStylenone

Coat Glossiness = 0

Panel
borderStylenone

Coat Glossiness = 0.25

Panel
borderStylenone

Coat Glossiness = 0.5

Panel
borderStylenone

Coat Glossiness = 0.75

Panel
borderStylenone

Coat Glossiness = 1

...