Chapter 3: Group

Core Idea

This is almost identical to an Object3D. Its purpose is to make working with groups of objects syntactically clearer.

Key Concepts

• isGroup : boolean (readonly): This flag can be used for type testing.

Code Examples

// Create a group and add the two cubes.
// These cubes can now be rotated / scaled etc as a group.
const group = new THREE.Group();
group.add( meshA );
group.add( meshB );
scene.add( group );

• What it demonstrates: Typical usage of Group.

Reference Tables

Constructor

Signature
new Group()

Properties

Property	Description
.isGroup : boolean (readonly)	This flag can be used for type testing.

Key Takeaways

1. Group extends: EventDispatcher → Object3D
2. Most relevant properties: isGroup.

Connects To

• EventDispatcher: parent class
• Object3D: parent class
• Source: src/objects/Group.js