It is not just HyperText,
And it is more than HyperMedia.
Technology gives us HyperMultiMedia.

The above example is from the first complete listing in the IndexedFaceSet discussion, Image Textures. They shows methods to assign an individual color or a texture to each face of an object, or to assign an individual color to each vertex of an object.
Above is original example pretty much from the book.
View these with and without the headlight and select other image quality settings to see the rendering differences. I have used part of a favorite texture for one of the objects.

Add Light and Motion

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