The development of a Web-based learning environment is time-consuming and complex. Hypermedia and interactive aspects are problem-specific and usually require a special authoring tool. This article describes how the development of hypermedia environments for computer graphics is preceded by the development of a hypermedia authoring tool. The implemented architecture is presented, which meets the requirements with regard to the inexpensive construction of a new environment, its consistent modification, its step-by-step internationalization, personalization and the integration of interactive virtual experiments and learning methods.