| Changed in VRML2.0 |
| This node specifies how the current materials are bound to shapes that follow in the scene graph. |
| Each shape node may interpret bindings differently. |
| The current material always has a base value, which is defined by the first value of all material fields. |
| Since material fields may have multiple values, the binding determines how these values are distributed over a shape. |
| The bindings for faces and vertices are meaningful only for shapes that are made from faces and vertices. |
| Similarly, the indexed bindings are only used by the shapes that allow indexing. |