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Base color – Specifies the diffuse color or map for the base layer. 

Base reflection – Specifies a reflectivity value or map for the base layer. The reflection color itself is the same as the Base color. 

Base glossiness – Specifies a reflection glossiness value or map for the base layer. 

Base trace reflections – When disabled, the base layer only produces specular highlights, but no (glossy) reflections.

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Flake color – Specifies the color or map of the metal flakes. 

Flake glossiness – Specifies the glossiness value or map of the metal flakes. It is not recommended to set this above 0.9 as it may produce artifacts.

Flake orientation – Specifies the orientation value or map of the metal flakes. The orientation of the flakes is relative to the surface normal. When set to 0.0, all flakes are perfectly aligned with the surface. When set to 1.0, the flakes are rotated completely randomly with respect to the normal. Values above 0.5 are not recommended as they can produce artifacts. 

Flake density – Specifies the density (number of flakes) for a certain area. Lower values produce less flakes and higher values produce more flakes. Set this to 0.0 to produce a material without flakes. For more information, see The Flake Density Parameter example below.

Flake scale – Scales the entire flake structure. For more information, see The Flake Scale Parameter example below.

Flake size – Specifies the size of the flakes relative to the distance between them. Higher values produce bigger flakes and lower values produce smaller flakes. For more information, see The Flake Size Parameter example below.

Flake seed – The random seed for the flakes. Changing this produces different flake patterns. 

Flake filtering – Determines the way the flakes are filtered. Filtering is extremely important to reduce the work required to produce a clean image. For more information, see The Flake Filtering Parameter example below

Simple  – This method is faster and uses less RAM but is less accurate. It averages the orientation of the flakes together, which may alter the appearance of the material when viewed from a distance.
Directional – This method is slightly slower and uses more RAM, but is more accurate. It groups the flakes based on their orientation before performing the filtering, so that the material appearance is preserved. 

Flake map size – Internally the material creates several bitmaps to store the generated flakes. This parameter determines the size of the bitmaps. Lower values reduce RAM usage, but may produce noticeable tiling in the flake structure. Higher values require more RAM, but tiling is reduced. Be careful when using the Directional filtering method, as it may quickly take up gigabytes of RAM for larger map sizes. For more information, see Antialiasing Filters example below.

Flake mapping type – Specifies the method for mapping the flakes.

Explicit UVW channel – The flakes are mapped using the specified channel.
Triplanar from Object XYZ  – The material automatically computes mapping coordinates in object space based on the surface normals.

Flake map channel – Specifies the mapping channel for the flakes when the Flake mapping type is set to Explicit UVW channel.

Flake trace reflections – When disabled, the flakes only produce specular highlights, but no actual reflections are traced.

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Coat color – Specifies the color or map of the coat layer.

Coat strength – Specifies the strength value or map of the coat reflections when the surface is viewed directly from the front.

Coat glossiness – Specifies the glossiness value or map of the coat reflections.

Coat trace reflections – When disabled, the clear coat only produces specular highlights, but no actual reflections.

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