BOUVILLE, C.DUBOIS, J.L.MARCHAL, I.K. BO and H.A. TUCKER2015-09-292015-09-2919841017-4656https://doi.org/10.2312/eg.19841012Ray-casting techniques provide a very general framework in which many problems can be solved in a much easier way than with conventional methods. This is particularly true for the illumination model when a high level of realism is required. Another interesting feature of ray-casting is its ability to display a wide class of algebraic surfaces with a minimum of approximations. Both aspects are developped in this paper where a full lighting model, based on a theoritical approach, is presented. Then, an algorithm for the display of surfaces of revolution is described.10.2312/eg.19841012