Chapter 81: MeshSSSNodeMaterial

Core Idea

This node material is an experimental extension of MeshPhysicalNodeMaterial that implements a Subsurface scattering (SSS) term.

Key Concepts

• thicknessAmbientNode : Node.<float>: Represents the thickness ambient factor.
• thicknessAttenuationNode : Node.<float>: Represents the thickness attenuation.
• thicknessColorNode : Node.<vec3>: Represents the thickness color.
• thicknessDistortionNode : Node.<float>: Represents the distortion factor.
• thicknessPowerNode : Node.<float>: Represents the thickness power.
• thicknessScaleNode : Node.<float>: Represents the thickness scale.
• useSSS : boolean: Whether the lighting model should use SSS or not.

Reference Tables

Constructor

Signature
new MeshSSSNodeMaterial( parameters : Object )

Properties

Property	Description
.thicknessAmbientNode : Node.<float>	Represents the thickness ambient factor.
.thicknessAttenuationNode : Node.<float>	Represents the thickness attenuation.
.thicknessColorNode : Node.<vec3>	Represents the thickness color.
.thicknessDistortionNode : Node.<float>	Represents the distortion factor.
.thicknessPowerNode : Node.<float>	Represents the thickness power.
.thicknessScaleNode : Node.<float>	Represents the thickness scale.
.useSSS : boolean	Whether the lighting model should use SSS or not.

Methods

Method	Description
.setupLightingModel() : SSSLightingModel	Setups the lighting model.

Key Takeaways

1. MeshSSSNodeMaterial extends: EventDispatcher → Material → NodeMaterial → MeshStandardNodeMaterial → MeshPhysicalNodeMaterial
2. Most relevant properties: thicknessAmbientNode, thicknessAttenuationNode, thicknessColorNode, thicknessDistortionNode.
3. Key methods: setupLightingModel.

Connects To

• EventDispatcher: parent class
• Material: parent class
• NodeMaterial: parent class
• MeshStandardNodeMaterial: parent class
• MeshPhysicalNodeMaterial: parent class
• Source: src/materials/nodes/MeshSSSNodeMaterial.js