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This page provides an overview of the VRayCarpaintUberMtl and its parameters.

Table of Contents

 

 

Overview

VRayCarpaintUberMtl simulates metallic car paint. It is a complex material with two layers: a base layer and a clear coat layer. The material allows the adjustment of each of these layers separately.
 

 

 

For your materials to work properly at render time make sure your textures have a valid file path (Source File in the texture Details panel). V-Ray loads the textures from that directory during rendering. If the texture is not found at the specified location, V-Ray will automatically export the texture. You can then find it in your project folder > Content > Texture Cache.

 

VRayCarpaintUberMtl Parameters

 BaseLayer

 

Specifies the properties of the base layer for the car paint.

  • SolidColor – Specifies the diffuse color of the base layer.

  • FlipFlop – Enables a flip-flop or chameleon effect for the base layer.

  • PearlescentColor – Specifies the color at the Fresnel reflections. Note that this color also depends on the MetallicAmount parameter.

  • PearlescentBIas – Controls the Fresnel amount of the PearlescentColor.

  • MetallicAmount – Specifies the metallicness of the base layer.

  • MetallicGossiness – Controls the sharpness of reflections. A value of 1.0 means perfect mirror-like reflection; lower values produce blurry, or glossy, reflections.


 

 

 

SolidColor=0.05,0.05,0.6; MetallicGlossines=1; CoatStrength=0

SolidColor=0.05,0.05,0.6; MetallicAmount=1; CoatStrength=0

SolidColor=0.05,0.05,0.6; FlipFlop=On; PearlescentColor=0.9,0.7,0.1; MetallicGlossines=1; CoatStrength=0

 

 

 

 CoatLayer


Specifies the properties of the top coat layer of the car paint with additional reflection and bump properties.

  • CoatStrength – Specifies the strength of the Clear Coat layer.

  • CoatGlossiness – Controls the sharpness of reflections of the Clear Coat layer. A value of 1.0 means perfect mirror-like reflection; lower values produce blurry, or glossy, reflections.

  • UseBumpTex – Enables the use of Texture for Bump of the Clear Coat layer.

  • BumpTex – Specifies the Bump Texture for Clear Coat layer when UseBumpTex is enabled.

  • BumpTexAmount – Specifies the bump amount of the Clear Coat layer.

  • BumpTex_Channel – Specifies the UV channel index for the BumpTex of the Clear Coat layer.

  • BumpTex_OffsetU – Specifies the horizontal offset of the BumpTex of the Clear Coat layer.

  • BumpTex_OffsetV – Specifies the vertical offset of the BumpTex of the Clear Coat layer.

  • BumpTex_TileU – Specifies the horizontal repetition of the BumpTex of the Clear Coat layer.

  • BumpTex_TileV – Specifies the vertical repetition of the BumpTex of the Clear Coat layer.

  • BumpTex_Triplanar – Enables triplanar mapping for the BumpTex of the Clear Coat layer.

  • BumpTex_TriplanarBlend – Specifies the blend amount between the different Texture projections. Lower values produce sharper transitions between projections.

  • BumpTex_TriplanarScale – Adjusts the scale of the BumpTex of the Clear Coat layer when BumpTex_Triplanar is enabled.


 

 

 

SolidColor=0.05,0.05,0.6; MetallicAmount=0; CoatGlossiness=1

SolidColor=0.05,0.05,0.6; MetallicAmount=0; CoatStrength=1

 

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