Group {
MFNode children [ ] # {node, PROTO}
}
Direct derived nodes: Pose, Billboard.
A Group node contains children nodes without introducing a new transformation.
It is equivalent to a Pose node with a translation and a rotation set to zero (default values).
In the standard case, the list of children of a Group node may contain different types of node:
However, if the [Group] node is inside the boundingObject of a Solid node, special rules apply.