How to include visuals and interactivities in an educational computer graphics repository

Repositories typically lack in support for visual and interactive learning objects. Yet, they are an integral part of CG education. In this contribution, we discuss why it is so difficult to include visuals and interactivities into a repository and what we can do to support them in a better way. We start by reviewing the current state of learning technology and educational repositories, and translating their major concepts to CG principles. Components of our own courses will then illustrate the possible impact of great interactivity in CG education. We give hints on how to share them in a worldwide repository, propose repository metadata for interactivity and adaptability, and introduce visual scripting as a metaphor to communicate learning objects' data, structure, and behavior.