We offer here a couple of introductory tutorials on X3D concepts. It serves as background material for Titania and X_ITE.
The only hardware and software requirement for most of the tutorials is a computer with the latest version of Titania or your favorite text editor and X_ITE. Titania has extensive documentation. It is the perfect environment to get started in creating sensational X3D scenes.
There are also Books for Further Reading
X3D: Extensible 3D Graphics for Web Authors by Don Brutzman and Leonard Daly