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DiffuseTransmission

This component is designed to represent non-shiny matte materials that transmit light, such as lampshades or translucent paper screens. There is a Roughness parameter that uses the Oren-Nayar method for representing rough surfaces made up of microfacets. In practical terms increasing the Roughness parameter is useful for representing powdery surfaces.

Diffuse Reflection

ReflectionColour

The basic color of the component. This can be a single color value or a texture map.

Input: Map/Color

Colour: White
Colour: White
Colour: Grey
Colour: Black
Colour: Red
Colour: Red

Roughness

Controls the Oren-Nayar roughness of the material. Increasing this makes the surface look powdery or rubbery

Range: 0.0 - 1.0 or Map

DiffuseRoughness: 0.0
DiffuseRoughness: 0.0
DiffuseRoughness: 0.5
DiffuseRoughness: 0.5
DiffuseRoughness: 1.0
DiffuseRoughness: 1.0

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Diffuse Transmission

TransmissionWeight

Controls how much light can pass through the material. Setting this to zero will make the material opaque. For real-world materials, this parameter should always be less than 0.5.

Range: 0.0 - 1.0 or Map

TransmissionWeight: 0.0
TransmissionWeight: 0.0
TransmissionWeight: 0.5
TransmissionWeight: 0.5
TransmissionWeight: 1.0
TransmissionWeight: 1.0

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TransmissionColour

Controls the color of light passing through the material. For most materials this would be the same as the ReflectionColour. This can be a single color value or a texture map.

Input: Map/Color

Colour: White
Colour: White
Colour: Grey
Colour: Black
Colour: Red
Colour: Red

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Surface, Coating and Decal Layers Only

Weight

Gives control over the contribution of the layers to the overall material appearance. A value of 1.0 will completely block any effect of any material layers below. A value of 0.0 will remove any of the layers contribution.

Range: 0.0 - 1.0 or Map

Weight: 1.0
Weight: 0.1
Weight: 0.5
Weight: 0.5
Weight: 1.0
Weight: 1.0

Normal

Allows you to set a bump map to simulate surface detail and control the intensity and orientation of the effect

Range: 0.0 - 1.0 or Map

Normal: 0.2
Normal: 0.2
Normal: 1.0
Normal: 1.0
Normal: 3.0
Normal: 3.0

Materials using DiffuseTransmission

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Base

Lampshade
Lampshade
PaperTranslucent
PaperTranslucent

Surface

Dirt1
Dirt1
Dirt2
Dirt2
Dirt3
Dirt3
DustStreaks
DustStreaks
DustUniform
DustUniform
DustVariable
DustVariable


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