Date Added: Jul 2011
The process of design and development of virtual environments can be supported by tools and frameworks, to save time in technical aspects and focusing on the content. In this paper, the authors present an academic framework which provides several levels of abstraction to ease this paper. It includes state-of-the-art components they devised or integrated adopting open-source solutions in order to face specific problems. Its architecture is modular and customizable; the code is open-source. Commercial games reach production costs up to millions dollars.