GRAVE, M.C. E. Vandoni2015-09-292015-09-2919801017-4656https://doi.org/10.2312/eg.19801007During the last years, raster graphics have become more and more important, and there is a need in developing a new generation of graphic systems. In this paper a first experiment designed as a "raster extension" to an existing line-drawing system is presented. Some drawbacks of such an extension are shown, and then the main lines of an experimental system, designed around a frame buffer structure, are presented.10.2312/eg.19801007