Alexis Angelidis and Geoffroy Fouquier. Visualization Issues in Virtual Environments: from Computer Graphics Techniques to Intentional Visualization. In the proceedings of the 9th International Conference in Central Europe on Computer Graphics, Visualization and Computer Vision (WSCG'2001), (V. Skala, Ed.; ISBN 80-7082-713-0) vol. 3, pages 90-98, Plzen, Czech Republic, February 2001

Rendering efficiently large virtual environment scenes composed of many elements, dynamic objects, and a highly moving viewpoint is a major issue. This paper focuses on the first of the two viewing stage operations: required elements determination, the second being shading/filtering. We propose a classification, extending the existing computer graphic techniques toward display scalability requirements, that distinguishes two key points: keeping only required elements (culling), and keeping only required details (which includes traditional LODs). The mechanisms needed for display scalability are presented.