Chapter 453: PMREMNode

Core Idea

This node represents a PMREM which is a special type of preprocessed environment map intended for PBR materials.

Key Concepts

• levelNode : Node.<float>: The level node.
• updateBeforeType : string: The updateBeforeType is set to NodeUpdateType.RENDER.
• uvNode : Node.<vec2>: The uv node.
• value : Texture: The node's texture value.

Code Examples

const material = new MeshStandardNodeMaterial();
material.envNode = pmremTexture( envMap );

• What it demonstrates: Typical usage of PMREMNode.

Reference Tables

Constructor

Signature
new PMREMNode( value : Texture, uvNode : Node.<vec2>, levelNode : Node.<float> )

Properties

Property	Description
.levelNode : Node.<float>	The level node.
.updateBeforeType : string	The updateBeforeType is set to NodeUpdateType.RENDER.
.uvNode : Node.<vec2>	The uv node.
.value : Texture	The node's texture value.

Methods

Method	Description
.updateFromTexture( texture : Texture )	Uses the given PMREM texture to update internal values.

Key Takeaways

1. PMREMNode extends: EventDispatcher → Node → TempNode
2. Most relevant properties: levelNode, updateBeforeType, uvNode, value.
3. Key methods: updateFromTexture.

Connects To

• EventDispatcher: parent class
• Node: parent class
• TempNode: parent class
• Source: src/nodes/pmrem/PMREMNode.js