This is a graphical diagram of a VRML 2.0 scene. Blue circles are grouping nodes (nodes with Children). Nodes underneath (children) of a grouping node are affected by the grouping node parameters. For example, all nodes under an Anchor grouping node have the same URL associated with them. Clear circles are children nodes that have only fields as their subordinates. Red dotted lines indicate event ROUTEs in the direction of the arrow.