Understanding Visual Effects in a Windowed Environment

We describe five demonstration programs for displaying variants of effects reported in the vision literature. The demonstrations use a windowed workstation environment, the X Window System Version 11. The performance of the window system is analyzed in terms of our implementation experience and suggestions are made for future window system architectures based on that experience. The visual effects are then discussed in terms of what they teach us about the display of information within a windowed environment and the tools that the visual effects themselves provide for improving that environment. Resume Nous deerivons cinq programmes de demonstration pour afficher les differents effets de la vision, tel que la deerit la documentation courante sur le sujet. Les d6monstrations utilisent un environment de station de travail a fen&tres multiples, plus particulierement le systeme X Window, version 11. Les performances y sont analysees a la lumiere de notre propre experience tout comme sont presentees nos suggestions pour ameliorer les futures architectures des systemes a fen&tres. Nous elaborons ensuite sur la nature de l'affichage de l'information dans un tel environnement pour conclure sur la pertinence des travaux sur les effets de la vision pour ameliorer les systemes a fen&tres multiples.