||Provides an easy to use scene graph API that is intended
for use by OpenGL Programmers, without preventing access to low-level
If you're interested in constructing arbitrary OpenGL objects,
take a look at the Visible interface.
Model designers might be more interested in the model subpackage.
||This package contains the
core components of the Vertex Modeler application.
Model designers will be most interested in the Model
and VertexUtil classes; examine their documentation closely, since
you'll be using them extensively. Being aware of the other
classes in this package would be handy, as well.